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Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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source-engine/particles/builtin_initializers.cpp

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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: particle system code
//
//===========================================================================//
#include "tier0/platform.h"
#include "particles/particles.h"
#include "filesystem.h"
#include "tier2/tier2.h"
#include "tier2/fileutils.h"
#include "tier2/renderutils.h"
#include "tier1/UtlStringMap.h"
#include "tier1/strtools.h"
#include "dmxloader/dmxelement.h"
#include "psheet.h"
#include "bspflags.h"
#include "const.h"
#include "particles_internal.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
void CParticleOperatorInstance::InitScalarAttributeRandomRangeBlock(
int attr_num, float fMin, float fMax,
CParticleCollection *pParticles, int start_block, int n_blocks ) const
{
size_t attr_stride;
fltx4 *pAttr = pParticles->GetM128AttributePtrForWrite( attr_num, &attr_stride );
pAttr += attr_stride * start_block;
fltx4 val0 = ReplicateX4( fMin );
fltx4 val_d = ReplicateX4( fMax - fMin );
int nRandContext = GetSIMDRandContext();
while( n_blocks-- )
{
*( pAttr ) = AddSIMD( val0, MulSIMD( RandSIMD( nRandContext ), val_d ) );
pAttr += attr_stride;
}
ReleaseSIMDRandContext( nRandContext );
}
void CParticleOperatorInstance::InitScalarAttributeRandomRangeExpBlock(
int attr_num, float fMin, float fMax, float fExp,
CParticleCollection *pParticles, int start_block, int n_blocks ) const
{
size_t attr_stride;
fltx4 *pAttr = pParticles->GetM128AttributePtrForWrite( attr_num, &attr_stride );
pAttr += attr_stride * start_block;
fltx4 val0 = ReplicateX4( fMin );
fltx4 val_d = ReplicateX4( fMax - fMin );
//fltx4 val_e = ReplicateX4( fExp );
int nExp = (int)(4.0f * fExp);
int nRandContext = GetSIMDRandContext();
while( n_blocks-- )
{
*( pAttr ) = AddSIMD( val0, MulSIMD( Pow_FixedPoint_Exponent_SIMD( RandSIMD( nRandContext ), nExp ), val_d ) );
pAttr += attr_stride;
}
ReleaseSIMDRandContext( nRandContext );
}
void CParticleOperatorInstance::AddScalarAttributeRandomRangeBlock(
int nAttributeId, float fMin, float fMax, float fExp,
CParticleCollection *pParticles, int nStartBlock, int nBlockCount, bool bRandomlyInvert ) const
{
size_t nAttrStride;
fltx4 *pAttr = pParticles->GetM128AttributePtrForWrite( nAttributeId, &nAttrStride );
pAttr += nAttrStride * nStartBlock;
fltx4 val0 = ReplicateX4( fMin );
fltx4 val_d = ReplicateX4( fMax - fMin );
int nRandContext = GetSIMDRandContext();
if ( !bRandomlyInvert )
{
if ( fExp != 1.0f )
{
int nExp = (int)(4.0f * fExp);
while( nBlockCount-- )
{
*( pAttr ) = AddSIMD( *pAttr, AddSIMD( val0, MulSIMD( Pow_FixedPoint_Exponent_SIMD( RandSIMD( nRandContext ), nExp ), val_d ) ) );
pAttr += nAttrStride;
}
}
else
{
while( nBlockCount-- )
{
*pAttr = AddSIMD( *pAttr, AddSIMD( val0, MulSIMD( RandSIMD( nRandContext ), val_d ) ) );
pAttr += nAttrStride;
}
}
}
else
{
fltx4 fl4NegOne = ReplicateX4( -1.0f );
if ( fExp != 1.0f )
{
int nExp = (int)(4.0f * fExp);
while( nBlockCount-- )
{
fltx4 fl4RandVal = AddSIMD( val0, MulSIMD( Pow_FixedPoint_Exponent_SIMD( RandSIMD( nRandContext ), nExp ), val_d ) );
fltx4 fl4Sign = MaskedAssign( CmpGeSIMD( RandSIMD( nRandContext ), Four_PointFives ), Four_Ones, fl4NegOne );
*pAttr = AddSIMD( *pAttr, MulSIMD( fl4RandVal, fl4Sign ) );
pAttr += nAttrStride;
}
}
else
{
while( nBlockCount-- )
{
fltx4 fl4RandVal = AddSIMD( val0, MulSIMD( RandSIMD( nRandContext ), val_d ) );
fltx4 fl4Sign = MaskedAssign( CmpGeSIMD( RandSIMD( nRandContext ), Four_PointFives ), Four_Ones, fl4NegOne );
*pAttr = AddSIMD( *pAttr, MulSIMD( fl4RandVal, fl4Sign ) );
pAttr += nAttrStride;
}
}
}
ReleaseSIMDRandContext( nRandContext );
}
class C_INIT_CreateOnModel : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateOnModel );
int m_nControlPointNumber;
int m_nForceInModel;
float m_flHitBoxScale;
Vector m_vecDirectionBias;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK |
PARTICLE_ATTRIBUTE_HITBOX_RELATIVE_XYZ_MASK | PARTICLE_ATTRIBUTE_HITBOX_INDEX_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateOnModel, "Position on Model Random", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateOnModel )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "force to be inside model", "0", int, m_nForceInModel )
DMXELEMENT_UNPACK_FIELD( "hitbox scale", "1.0", int, m_flHitBoxScale )
DMXELEMENT_UNPACK_FIELD( "direction bias", "0 0 0", Vector, m_vecDirectionBias )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateOnModel )
void C_INIT_CreateOnModel::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
pParticles->UpdateHitBoxInfo( m_nControlPointNumber );
while( nParticleCount )
{
Vector vecPnts[100]; // minimize stack usage
Vector vecUVW[100];
int nHitBoxIndex[100];
int nToDo = min( (int)ARRAYSIZE( vecPnts ), nParticleCount );
Assert( m_nControlPointNumber <= pParticles->GetHighestControlPoint() );
g_pParticleSystemMgr->Query()->GetRandomPointsOnControllingObjectHitBox(
pParticles, m_nControlPointNumber,
nToDo, m_flHitBoxScale, m_nForceInModel, vecPnts, m_vecDirectionBias, vecUVW,
nHitBoxIndex );
for( int i=0; i<nToDo; i++)
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
float *pHitboxRelXYZ = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_HITBOX_RELATIVE_XYZ, start_p );
int *pHitboxIndex = pParticles->GetIntAttributePtrForWrite( PARTICLE_ATTRIBUTE_HITBOX_INDEX, start_p );
start_p++;
Vector randpos = vecPnts[i];
xyz[0] = randpos.x;
xyz[4] = randpos.y;
xyz[8] = randpos.z;
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
pxyz[0] = randpos.x;
pxyz[4] = randpos.y;
pxyz[8] = randpos.z;
}
if ( pHitboxRelXYZ && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_HITBOX_RELATIVE_XYZ_MASK ) )
{
pHitboxRelXYZ[0] = vecUVW[i].x;
pHitboxRelXYZ[4] = vecUVW[i].y;
pHitboxRelXYZ[8] = vecUVW[i].z;
}
if ( pHitboxIndex && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_HITBOX_INDEX_MASK ) )
{
*pHitboxIndex = nHitBoxIndex[i];
}
}
nParticleCount -= nToDo;
}
}
static inline void RandomPointOnUnitSphere( int nRandContext, FourVectors &out )
{
// generate 4 random points on the unit sphere. uses Marsaglia (1972) method from
// http://mathworld.wolfram.com/SpherePointPicking.html
fltx4 f4x1 = SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ); // -1..1
fltx4 f4x2 = SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ); // -1..1
fltx4 f4x1SQ = MulSIMD( f4x1, f4x1 );
fltx4 f4x2SQ = MulSIMD( f4x2, f4x2 );
fltx4 badMask = CmpGeSIMD( AddSIMD( f4x1SQ, f4x2SQ ), Four_Ones );
while( IsAnyNegative( badMask ) )
{
f4x1 = MaskedAssign( badMask, SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ), f4x1 );
f4x2 = MaskedAssign( badMask, SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ), f4x2 );
f4x1SQ = MulSIMD( f4x1, f4x1 );
f4x2SQ = MulSIMD( f4x2, f4x2 );
badMask = CmpGeSIMD( AddSIMD( f4x1SQ, f4x2SQ ), Four_Ones );
}
// now, we have 2 points on the unit circle
fltx4 f4OuterArea = SqrtEstSIMD( SubSIMD( Four_Ones, SubSIMD( f4x1SQ, f4x2SQ ) ) );
out.x = MulSIMD( AddSIMD( f4x1, f4x1 ), f4OuterArea );
out.y = MulSIMD( AddSIMD( f4x2, f4x2 ), f4OuterArea );
out.z = SubSIMD( Four_Ones, MulSIMD( Four_Twos, AddSIMD( f4x1, f4x2 ) ) );
}
static inline void RandomPointInUnitSphere( int nRandContext, FourVectors &out )
{
// generate 4 random points inside the unit sphere. uses rejection method.
out.x = SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ); // -1..1
out.y = SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ); // -1..1
out.z = SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ); // -1..1
fltx4 f4xSQ = MulSIMD( out.x, out.x );
fltx4 f4ySQ = MulSIMD( out.y, out.y );
fltx4 f4zSQ = MulSIMD( out.z, out.z );
fltx4 badMask = CmpGtSIMD( AddSIMD( AddSIMD( f4xSQ, f4ySQ ), f4zSQ ), Four_Ones );
while( IsAnyNegative( badMask ) )
{
out.x = MaskedAssign( badMask, SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ), out.x );
out.y = MaskedAssign( badMask, SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ), out.y );
out.z = MaskedAssign( badMask, SubSIMD( MulSIMD( Four_Twos, RandSIMD( nRandContext ) ), Four_Ones ), out.z );
f4xSQ = MulSIMD( out.x, out.x );
f4ySQ = MulSIMD( out.y, out.y );
f4zSQ = MulSIMD( out.z, out.z );
badMask = CmpGeSIMD( AddSIMD( AddSIMD( f4xSQ, f4ySQ ), f4zSQ ), Four_Ones );
}
}
class C_INIT_CreateWithinSphere : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateWithinSphere );
float m_fRadiusMin;
float m_fRadiusMax;
Vector m_vecDistanceBias, m_vecDistanceBiasAbs;
int m_nControlPointNumber;
float m_fSpeedMin;
float m_fSpeedMax;
float m_fSpeedRandExp;
bool m_bLocalCoords;
bool m_bDistanceBiasAbs;
bool m_bUseHighestEndCP;
bool m_bDistanceBias;
float m_flEndCPGrowthTime;
Vector m_LocalCoordinateSystemSpeedMin;
Vector m_LocalCoordinateSystemSpeedMax;
int m_nCreateInModel;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
if ( !m_bUseHighestEndCP )
return 1ULL << m_nControlPointNumber;
return ~( ( 1ULL << m_nControlPointNumber ) - 1 );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
m_bDistanceBias = ( m_vecDistanceBias.x != 1.0f ) || ( m_vecDistanceBias.y != 1.0f ) || ( m_vecDistanceBias.z != 1.0f );
m_bDistanceBiasAbs = ( m_vecDistanceBiasAbs.x != 0.0f ) || ( m_vecDistanceBiasAbs.y != 0.0f ) || ( m_vecDistanceBiasAbs.z != 0.0f );
}
void Render( CParticleCollection *pParticles ) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateWithinSphere, "Position Within Sphere Random", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateWithinSphere )
DMXELEMENT_UNPACK_FIELD( "distance_min", "0", float, m_fRadiusMin )
DMXELEMENT_UNPACK_FIELD( "distance_max", "0", float, m_fRadiusMax )
DMXELEMENT_UNPACK_FIELD( "distance_bias", "1 1 1", Vector, m_vecDistanceBias )
DMXELEMENT_UNPACK_FIELD( "distance_bias_absolute_value", "0 0 0", Vector, m_vecDistanceBiasAbs )
DMXELEMENT_UNPACK_FIELD( "bias in local system", "0", bool, m_bLocalCoords )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "speed_min", "0", float, m_fSpeedMin )
DMXELEMENT_UNPACK_FIELD( "speed_max", "0", float, m_fSpeedMax )
DMXELEMENT_UNPACK_FIELD( "speed_random_exponent", "1", float, m_fSpeedRandExp )
DMXELEMENT_UNPACK_FIELD( "speed_in_local_coordinate_system_min", "0 0 0", Vector, m_LocalCoordinateSystemSpeedMin )
DMXELEMENT_UNPACK_FIELD( "speed_in_local_coordinate_system_max", "0 0 0", Vector, m_LocalCoordinateSystemSpeedMax )
DMXELEMENT_UNPACK_FIELD( "create in model", "0", int, m_nCreateInModel )
DMXELEMENT_UNPACK_FIELD( "randomly distribute to highest supplied Control Point", "0", bool, m_bUseHighestEndCP )
DMXELEMENT_UNPACK_FIELD( "randomly distribution growth time", "0", float, m_flEndCPGrowthTime )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateWithinSphere )
ConVar r_sse_s( "r_sse_s", "1", 0, "sse ins for particle sphere create" );
void C_INIT_CreateWithinSphere::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
int nCurrentControlPoint = m_nControlPointNumber;
if ( m_bUseHighestEndCP )
{
//hack for growth time instead of using strength as currenly initializers don't support it.
float flStrength = 1.0;
if ( m_flEndCPGrowthTime != 0.0f )
{
flStrength = min ( pParticles->m_flCurTime, m_flEndCPGrowthTime ) / m_flEndCPGrowthTime ;
}
int nHighestControlPoint = floor ( pParticles->GetHighestControlPoint() * flStrength );
nCurrentControlPoint = pParticles->RandomInt( m_nControlPointNumber, nHighestControlPoint );
}
Vector randpos, randDir;
for( int nTryCtr = 0 ; nTryCtr < 10; nTryCtr++ )
{
float flLength = pParticles->RandomVectorInUnitSphere( &randpos );
// Absolute value and biasing for creating hemispheres and ovoids.
if ( m_bDistanceBiasAbs )
{
if ( m_vecDistanceBiasAbs.x != 0.0f )
{
randpos.x = fabs(randpos.x);
}
if ( m_vecDistanceBiasAbs.y != 0.0f )
{
randpos.y = fabs(randpos.y);
}
if ( m_vecDistanceBiasAbs.z != 0.0f )
{
randpos.z = fabs(randpos.z);
}
}
randpos *= m_vecDistanceBias;
randpos.NormalizeInPlace();
randDir = randpos;
randpos *= Lerp( flLength, m_fRadiusMin, m_fRadiusMax );
if ( !m_bDistanceBias || !m_bLocalCoords )
{
Vector vecControlPoint;
pParticles->GetControlPointAtTime( nCurrentControlPoint, *ct, &vecControlPoint );
randpos += vecControlPoint;
}
else
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( nCurrentControlPoint, *ct, &mat );
Vector vecTransformLocal = vec3_origin;
VectorTransform( randpos, mat, vecTransformLocal );
randpos = vecTransformLocal;
}
// now, force to be in model if we can
if (
( m_nCreateInModel == 0 ) ||
(g_pParticleSystemMgr->Query()->MovePointInsideControllingObject(
pParticles, pParticles->m_ControlPoints[nCurrentControlPoint].m_pObject, &randpos ) ) )
break;
}
xyz[0] = randpos.x;
xyz[4] = randpos.y;
xyz[8] = randpos.z;
// FIXME: Remove this into a speed setting initializer
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
Vector poffset(0,0,0);
if ( m_fSpeedMax > 0.0 )
{
float rand_speed = pParticles->RandomFloatExp( m_fSpeedMin, m_fSpeedMax, m_fSpeedRandExp );
poffset.x -= rand_speed * randDir.x;
poffset.y -= rand_speed * randDir.y;
poffset.z -= rand_speed * randDir.z;
}
poffset -=
pParticles->RandomFloat( m_LocalCoordinateSystemSpeedMin.x, m_LocalCoordinateSystemSpeedMax.x )*
pParticles->m_ControlPoints[ nCurrentControlPoint ].m_ForwardVector;
poffset -=
pParticles->RandomFloat( m_LocalCoordinateSystemSpeedMin.y, m_LocalCoordinateSystemSpeedMax.y )*
pParticles->m_ControlPoints[ nCurrentControlPoint ].m_RightVector;
poffset -=
pParticles->RandomFloat( m_LocalCoordinateSystemSpeedMin.z, m_LocalCoordinateSystemSpeedMax.z )*
pParticles->m_ControlPoints[ nCurrentControlPoint ].m_UpVector;
poffset *= pParticles->m_flPreviousDt;
randpos += poffset;
pxyz[0] = randpos.x;
pxyz[4] = randpos.y;
pxyz[8] = randpos.z;
}
}
}
void C_INIT_CreateWithinSphere::InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
// sse-favorable settings
bool bMustUseScalar = m_bUseHighestEndCP || m_nCreateInModel;
if ( m_bDistanceBias && m_bLocalCoords )
bMustUseScalar = true;
if ( ( !bMustUseScalar ) &&
// (( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) == 0 ) &&
r_sse_s.GetInt() )
{
C4VAttributeWriteIterator pXYZ( PARTICLE_ATTRIBUTE_XYZ, pParticles );
pXYZ += start_block;
C4VAttributeWriteIterator pPrevXYZ( PARTICLE_ATTRIBUTE_PREV_XYZ, pParticles );
pPrevXYZ += start_block;
CM128AttributeIterator pCT( PARTICLE_ATTRIBUTE_CREATION_TIME, pParticles );
pCT += start_block;
// now, calculate the terms we need for interpolating control points
FourVectors v4PrevControlPointPosition;
v4PrevControlPointPosition.DuplicateVector( pParticles->m_ControlPoints[m_nControlPointNumber].m_PrevPosition );
FourVectors v4ControlPointDelta;
v4ControlPointDelta.DuplicateVector( pParticles->m_ControlPoints[m_nControlPointNumber].m_Position );
v4ControlPointDelta -= v4PrevControlPointPosition;
float flOODT = ( pParticles->m_flDt > 0.0 ) ? ( 1.0 / pParticles->m_flDt ) : 0.0;
fltx4 fl4OODt = ReplicateX4( flOODT );
fltx4 fl4PrevTime = ReplicateX4( pParticles->m_flCurTime - pParticles->m_flDt );
int nContext = GetSIMDRandContext();
FourVectors v4DistanceBias;
v4DistanceBias.DuplicateVector( m_vecDistanceBias );
FourVectors v4ConditionalAbsMask;
for( int nComp = 0 ; nComp < 3; nComp++ )
{
v4ConditionalAbsMask[nComp] = ( m_vecDistanceBiasAbs[nComp] > 0 ) ?
LoadAlignedSIMD( ( const float *) g_SIMD_clear_signmask ) :
LoadAlignedSIMD( ( const float *) g_SIMD_AllOnesMask );
}
fltx4 fl4RadiusMin = ReplicateX4( m_fRadiusMin );
fltx4 fl4RadiusSpread = ReplicateX4( m_fRadiusMax - m_fRadiusMin );
int nPowSSEMask = 4.0 * m_fSpeedRandExp;
bool bDoRandSpeed =
( m_fSpeedMax > 0. ) ||
( m_LocalCoordinateSystemSpeedMax.x != 0 ) ||
( m_LocalCoordinateSystemSpeedMax.y != 0 ) ||
( m_LocalCoordinateSystemSpeedMax.z != 0 ) ||
( m_LocalCoordinateSystemSpeedMin.x != 0 ) ||
( m_LocalCoordinateSystemSpeedMin.y != 0 ) ||
( m_LocalCoordinateSystemSpeedMin.z != 0 );
fltx4 fl4SpeedMin = ReplicateX4( m_fSpeedMin );
fltx4 fl4SpeedRange = ReplicateX4( m_fSpeedMax - m_fSpeedMin );
fltx4 fl4LocalSpeedMinX = ReplicateX4( m_LocalCoordinateSystemSpeedMin.x );
fltx4 fl4LocalSpeedXSpread = ReplicateX4( m_LocalCoordinateSystemSpeedMax.x -
m_LocalCoordinateSystemSpeedMin.x );
fltx4 fl4LocalSpeedMinY = ReplicateX4( m_LocalCoordinateSystemSpeedMin.y );
fltx4 fl4LocalSpeedYSpread = ReplicateX4( m_LocalCoordinateSystemSpeedMax.y -
m_LocalCoordinateSystemSpeedMin.y );
fltx4 fl4LocalSpeedMinZ = ReplicateX4( m_LocalCoordinateSystemSpeedMin.z );
fltx4 fl4LocalSpeedZSpread = ReplicateX4( m_LocalCoordinateSystemSpeedMax.z -
m_LocalCoordinateSystemSpeedMin.z );
FourVectors v4CPForward;
v4CPForward.DuplicateVector( pParticles->m_ControlPoints[m_nControlPointNumber].m_ForwardVector );
FourVectors v4CPUp;
v4CPUp.DuplicateVector( pParticles->m_ControlPoints[m_nControlPointNumber].m_UpVector );
FourVectors v4CPRight;
v4CPRight.DuplicateVector( pParticles->m_ControlPoints[m_nControlPointNumber].m_RightVector );
fltx4 fl4PreviousDt = ReplicateX4( pParticles->m_flPreviousDt );
while( n_blocks-- )
{
FourVectors v4RandPos;
RandomPointInUnitSphere( nContext, v4RandPos );
fltx4 fl4Length = v4RandPos.length();
// conditional absolute value
v4RandPos.x = AndSIMD( v4RandPos.x, v4ConditionalAbsMask.x );
v4RandPos.y = AndSIMD( v4RandPos.y, v4ConditionalAbsMask.y );
v4RandPos.z = AndSIMD( v4RandPos.z, v4ConditionalAbsMask.z );
v4RandPos *= v4DistanceBias;
v4RandPos.VectorNormalizeFast();
FourVectors v4randDir = v4RandPos;
// lerp radius
v4RandPos *= AddSIMD( fl4RadiusMin, MulSIMD( fl4Length, fl4RadiusSpread ) );
v4RandPos += v4PrevControlPointPosition;
FourVectors cpnt = v4ControlPointDelta;
cpnt *= MulSIMD( SubSIMD( *pCT, fl4PrevTime ), fl4OODt );
v4RandPos += cpnt;
*(pXYZ) = v4RandPos;
if ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK )
{
if ( bDoRandSpeed )
{
fltx4 fl4Rand_speed = Pow_FixedPoint_Exponent_SIMD( RandSIMD( nContext ), nPowSSEMask );
fl4Rand_speed = AddSIMD( fl4SpeedMin, MulSIMD( fl4SpeedRange, fl4Rand_speed ) );
v4randDir *= fl4Rand_speed;
// local speed
FourVectors v4LocalOffset = v4CPForward;
v4LocalOffset *= AddSIMD( fl4LocalSpeedMinX,
MulSIMD( fl4LocalSpeedXSpread, RandSIMD( nContext ) ) );
v4randDir += v4LocalOffset;
v4LocalOffset = v4CPRight;
v4LocalOffset *= AddSIMD( fl4LocalSpeedMinY,
MulSIMD( fl4LocalSpeedYSpread, RandSIMD( nContext ) ) );
v4randDir += v4LocalOffset;
v4LocalOffset = v4CPUp;
v4LocalOffset *= AddSIMD( fl4LocalSpeedMinZ,
MulSIMD( fl4LocalSpeedZSpread, RandSIMD( nContext ) ) );
v4randDir += v4LocalOffset;
v4randDir *= fl4PreviousDt;
v4RandPos -= v4randDir;
}
*(pPrevXYZ) = v4RandPos;
}
++pXYZ;
++pPrevXYZ;
++pCT;
}
ReleaseSIMDRandContext( nContext );
}
else
CParticleOperatorInstance::InitNewParticlesBlock( pParticles, start_block, n_blocks, nAttributeWriteMask, pContext );
}
//-----------------------------------------------------------------------------
// Render visualization
//-----------------------------------------------------------------------------
void C_INIT_CreateWithinSphere::Render( CParticleCollection *pParticles ) const
{
Vector vecOrigin;
pParticles->GetControlPointAtTime( m_nControlPointNumber, pParticles->m_flCurTime, &vecOrigin );
RenderWireframeSphere( vecOrigin, m_fRadiusMin, 16, 8, Color( 192, 192, 0, 255 ), false );
RenderWireframeSphere( vecOrigin, m_fRadiusMax, 16, 8, Color( 128, 128, 0, 255 ), false );
}
class C_INIT_CreateWithinBox : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateWithinBox );
Vector m_vecMin;
Vector m_vecMax;
int m_nControlPointNumber;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void Render( CParticleCollection *pParticles ) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateWithinBox, "Position Within Box Random", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateWithinBox )
DMXELEMENT_UNPACK_FIELD( "min", "0 0 0", Vector, m_vecMin )
DMXELEMENT_UNPACK_FIELD( "max", "0 0 0", Vector, m_vecMax )
DMXELEMENT_UNPACK_FIELD( "control point number", "0", int, m_nControlPointNumber )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateWithinBox )
void C_INIT_CreateWithinBox::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
int nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
Vector randpos;
pParticles->RandomVector( m_vecMin, m_vecMax, &randpos );
Vector vecControlPoint;
pParticles->GetControlPointAtTime( nControlPointNumber, *ct, &vecControlPoint );
randpos += vecControlPoint;
xyz[0] = randpos.x;
xyz[4] = randpos.y;
xyz[8] = randpos.z;
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
pxyz[0] = randpos.x;
pxyz[4] = randpos.y;
pxyz[8] = randpos.z;
}
}
}
//-----------------------------------------------------------------------------
// Render visualization
//-----------------------------------------------------------------------------
void C_INIT_CreateWithinBox::Render( CParticleCollection *pParticles ) const
{
Vector vecOrigin;
pParticles->GetControlPointAtTime( m_nControlPointNumber, pParticles->m_flCurTime, &vecOrigin );
RenderWireframeBox( vecOrigin, vec3_angle, m_vecMin, m_vecMax, Color( 192, 192, 0, 255 ), false );
}
//-----------------------------------------------------------------------------
// Position Offset Initializer
// offsets initial position of particles within a random vector range,
// while still respecting spherical/conical spacial and velocity initialization
//-----------------------------------------------------------------------------
class C_INIT_PositionOffset : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_PositionOffset );
Vector m_OffsetMin;
Vector m_OffsetMax;
int m_nControlPointNumber;
bool m_bLocalCoords;
bool m_bProportional;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_CREATION_TIME_MASK | PARTICLE_ATTRIBUTE_RADIUS_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
}
bool InitMultipleOverride ( void ) { return true; }
void Render( CParticleCollection *pParticles ) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_PositionOffset, "Position Modify Offset Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_PositionOffset )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "offset min", "0 0 0", Vector, m_OffsetMin )
DMXELEMENT_UNPACK_FIELD( "offset max", "0 0 0", Vector, m_OffsetMax )
DMXELEMENT_UNPACK_FIELD( "offset in local space 0/1", "0", bool, m_bLocalCoords )
DMXELEMENT_UNPACK_FIELD( "offset proportional to radius 0/1", "0", bool, m_bProportional )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_PositionOffset )
void C_INIT_PositionOffset::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
const float *radius = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_RADIUS, start_p );
Vector randpos;
if ( m_bProportional )
{
pParticles->RandomVector( (m_OffsetMin * *radius), (m_OffsetMax * *radius), &randpos );
}
else
{
pParticles->RandomVector( m_OffsetMin, m_OffsetMax, &randpos );
}
if ( m_bLocalCoords )
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, *ct, &mat );
Vector vecTransformLocal = vec3_origin;
VectorRotate( randpos, mat, vecTransformLocal );
randpos = vecTransformLocal;
}
xyz[0] += randpos.x;
xyz[4] += randpos.y;
xyz[8] += randpos.z;
pxyz[0] += randpos.x;
pxyz[4] += randpos.y;
pxyz[8] += randpos.z;
}
}
//-----------------------------------------------------------------------------
// Render visualization
//-----------------------------------------------------------------------------
void C_INIT_PositionOffset::Render( CParticleCollection *pParticles ) const
{
Vector vecOrigin (0,0,0);
Vector vecMinExtent = m_OffsetMin;
Vector vecMaxExtent = m_OffsetMax;
if ( m_bLocalCoords )
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, pParticles->m_flCurTime, &mat );
VectorRotate( m_OffsetMin, mat, vecMinExtent );
VectorRotate( m_OffsetMax, mat, vecMaxExtent );
}
else
{
pParticles->GetControlPointAtTime( m_nControlPointNumber, pParticles->m_flCurTime, &vecOrigin );
}
RenderWireframeBox( vecOrigin, vec3_angle, vecMinExtent , vecMaxExtent , Color( 192, 192, 0, 255 ), false );
}
//-----------------------------------------------------------------------------
//
// Velocity-based Operators
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Random velocity initializer
//-----------------------------------------------------------------------------
class C_INIT_VelocityRandom : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_VelocityRandom );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
if ( m_bHasLocalSpeed )
return 1ULL << m_nControlPointNumber;
return 0;
}
virtual bool InitMultipleOverride() { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
m_bHasLocalSpeed = ( m_LocalCoordinateSystemSpeedMin != vec3_origin ) || ( m_LocalCoordinateSystemSpeedMax != vec3_origin );
if ( m_fSpeedMax < m_fSpeedMin )
{
V_swap( m_fSpeedMin, m_fSpeedMax );
}
}
private:
int m_nControlPointNumber;
float m_fSpeedMin;
float m_fSpeedMax;
Vector m_LocalCoordinateSystemSpeedMin;
Vector m_LocalCoordinateSystemSpeedMax;
bool m_bHasLocalSpeed;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_VelocityRandom, "Velocity Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_VelocityRandom )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "random_speed_min", "0", float, m_fSpeedMin )
DMXELEMENT_UNPACK_FIELD( "random_speed_max", "0", float, m_fSpeedMax )
DMXELEMENT_UNPACK_FIELD( "speed_in_local_coordinate_system_min", "0 0 0", Vector, m_LocalCoordinateSystemSpeedMin )
DMXELEMENT_UNPACK_FIELD( "speed_in_local_coordinate_system_max", "0 0 0", Vector, m_LocalCoordinateSystemSpeedMax )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_VelocityRandom )
void C_INIT_VelocityRandom::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
Vector vecVelocity( 0.0f, 0.0f, 0.0f );
if ( m_bHasLocalSpeed )
{
Vector vecRandomSpeed, vecForward, vecUp, vecRight;
pParticles->RandomVector( m_LocalCoordinateSystemSpeedMin, m_LocalCoordinateSystemSpeedMax, &vecRandomSpeed );
pParticles->GetControlPointOrientationAtTime( m_nControlPointNumber, *ct, &vecForward, &vecRight, &vecUp );
VectorMA( vecVelocity, vecRandomSpeed.x, vecForward, vecVelocity );
VectorMA( vecVelocity, -vecRandomSpeed.y, vecRight, vecVelocity );
VectorMA( vecVelocity, vecRandomSpeed.z, vecUp, vecVelocity );
}
if ( m_fSpeedMax > 0.0f )
{
Vector vecRandomSpeed;
pParticles->RandomVector( m_fSpeedMin, m_fSpeedMax, &vecRandomSpeed );
vecVelocity += vecRandomSpeed;
}
vecVelocity *= pParticles->m_flPreviousDt;
pxyz[0] -= vecVelocity.x;
pxyz[4] -= vecVelocity.y;
pxyz[8] -= vecVelocity.z;
}
}
//-----------------------------------------------------------------------------
// Initial Velocity Noise Operator
//-----------------------------------------------------------------------------
class C_INIT_InitialVelocityNoise : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_InitialVelocityNoise );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_XYZ_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
}
virtual bool InitMultipleOverride() { return true; }
Vector m_vecAbsVal, m_vecAbsValInv, m_vecOffsetLoc;
float m_flOffset;
Vector m_vecOutputMin;
Vector m_vecOutputMax;
float m_flNoiseScale, m_flNoiseScaleLoc;
int nRemainingBlocks, m_nControlPointNumber;
bool m_bLocalSpace;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_InitialVelocityNoise, "Velocity Noise", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_InitialVelocityNoise )
DMXELEMENT_UNPACK_FIELD( "Control Point Number","0",int,m_nControlPointNumber)
DMXELEMENT_UNPACK_FIELD( "Time Noise Coordinate Scale","1",float,m_flNoiseScale)
DMXELEMENT_UNPACK_FIELD( "Spatial Noise Coordinate Scale","0.01",float,m_flNoiseScaleLoc)
DMXELEMENT_UNPACK_FIELD( "Time Coordinate Offset","0", float, m_flOffset )
DMXELEMENT_UNPACK_FIELD( "Spatial Coordinate Offset","0 0 0", Vector, m_vecOffsetLoc )
DMXELEMENT_UNPACK_FIELD( "Absolute Value","0 0 0", Vector, m_vecAbsVal )
DMXELEMENT_UNPACK_FIELD( "Invert Abs Value","0 0 0", Vector, m_vecAbsValInv )
DMXELEMENT_UNPACK_FIELD( "output minimum","0 0 0", Vector, m_vecOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1 1 1", Vector, m_vecOutputMax )
DMXELEMENT_UNPACK_FIELD( "Apply Velocity in Local Space (0/1)","0", bool, m_bLocalSpace )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_InitialVelocityNoise );
void C_INIT_InitialVelocityNoise::InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
float flAbsScaleX, flAbsScaleY, flAbsScaleZ;
fltx4 fl4AbsValX, fl4AbsValY, fl4AbsValZ;
fl4AbsValX = CmpEqSIMD( Four_Zeros, Four_Zeros );
fl4AbsValY = fl4AbsValX;
fl4AbsValZ = fl4AbsValX;
flAbsScaleX = 0.5;
flAbsScaleY = 0.5;
flAbsScaleZ = 0.5;
// Set up single if check for absolute value inversion inside the loop
bool m_bNoiseAbs = ( m_vecAbsValInv.x != 0.0f ) || ( m_vecAbsValInv.y != 0.0f ) || ( m_vecAbsValInv.z != 0.0f );
// Set up values for more optimal absolute value calculations inside the loop
if ( m_vecAbsVal.x != 0.0f )
{
fl4AbsValX = LoadAlignedSIMD( (float *) g_SIMD_clear_signmask );
flAbsScaleX = 1.0;
}
if ( m_vecAbsVal.y != 0.0f )
{
fl4AbsValY = LoadAlignedSIMD( (float *) g_SIMD_clear_signmask );
flAbsScaleY = 1.0;
}
if ( m_vecAbsVal.z != 0.0f )
{
fl4AbsValZ = LoadAlignedSIMD( (float *) g_SIMD_clear_signmask );
flAbsScaleZ = 1.0;
}
float ValueScaleX, ValueScaleY, ValueScaleZ, ValueBaseX, ValueBaseY, ValueBaseZ;
ValueScaleX = ( flAbsScaleX *(m_vecOutputMax.x-m_vecOutputMin.x ) );
ValueBaseX = (m_vecOutputMin.x+ ( ( 1.0 - flAbsScaleX ) *( m_vecOutputMax.x-m_vecOutputMin.x ) ) );
ValueScaleY = ( flAbsScaleY *(m_vecOutputMax.y-m_vecOutputMin.y ) );
ValueBaseY = (m_vecOutputMin.y+ ( ( 1.0 - flAbsScaleY ) *( m_vecOutputMax.y-m_vecOutputMin.y ) ) );
ValueScaleZ = ( flAbsScaleZ *(m_vecOutputMax.z-m_vecOutputMin.z ) );
ValueBaseZ = (m_vecOutputMin.z+ ( ( 1.0 - flAbsScaleZ ) *( m_vecOutputMax.z-m_vecOutputMin.z ) ) );
fltx4 fl4ValueBaseX = ReplicateX4( ValueBaseX );
fltx4 fl4ValueBaseY = ReplicateX4( ValueBaseY );
fltx4 fl4ValueBaseZ = ReplicateX4( ValueBaseZ );
fltx4 fl4ValueScaleX = ReplicateX4( ValueScaleX );
fltx4 fl4ValueScaleY = ReplicateX4( ValueScaleY );
fltx4 fl4ValueScaleZ = ReplicateX4( ValueScaleZ );
float CoordScale = m_flNoiseScale;
float CoordScaleLoc = m_flNoiseScaleLoc;
Vector ofs_y = Vector( 100000.5, 300000.25, 9000000.75 );
Vector ofs_z = Vector( 110000.25, 310000.75, 9100000.5 );
size_t attr_stride;
const FourVectors *xyz = pParticles->Get4VAttributePtr( PARTICLE_ATTRIBUTE_XYZ, &attr_stride );
xyz += attr_stride * start_block;
FourVectors *pxyz = pParticles->Get4VAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, &attr_stride );
pxyz += attr_stride * start_block;
const fltx4 *pCreationTime = pParticles->GetM128AttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, &attr_stride );
pCreationTime += attr_stride * start_block;
// setup
fltx4 fl4Offset = ReplicateX4( m_flOffset );
FourVectors fvOffsetLoc;
fvOffsetLoc.DuplicateVector( m_vecOffsetLoc );
CParticleSIMDTransformation CPTransform;
float flCreationTime = SubFloat( *pCreationTime, 0 );
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, flCreationTime, &CPTransform );
while( n_blocks-- )
{
FourVectors fvCoordLoc = *xyz;
fvCoordLoc += fvOffsetLoc;
FourVectors fvCoord;
fvCoord.x = AddSIMD(*pCreationTime, fl4Offset);
fvCoord.y = AddSIMD(*pCreationTime, fl4Offset);
fvCoord.z = AddSIMD(*pCreationTime, fl4Offset);
fvCoordLoc *= CoordScaleLoc;
fvCoord *= CoordScale;
fvCoord += fvCoordLoc;
FourVectors fvCoord2 = fvCoord;
FourVectors fvOffsetTemp;
fvOffsetTemp.DuplicateVector( ofs_y );
fvCoord2 += fvOffsetTemp;
FourVectors fvCoord3 = fvCoord;
fvOffsetTemp.DuplicateVector( ofs_z );
fvCoord3 += fvOffsetTemp;
fltx4 fl4NoiseX;
fltx4 fl4NoiseY;
fltx4 fl4NoiseZ;
fl4NoiseX = NoiseSIMD( fvCoord );
fl4NoiseY = NoiseSIMD( fvCoord2 );
fl4NoiseZ = NoiseSIMD( fvCoord3 );
fl4NoiseX = AndSIMD ( fl4NoiseX, fl4AbsValX );
fl4NoiseY = AndSIMD ( fl4NoiseY, fl4AbsValY );
fl4NoiseZ = AndSIMD ( fl4NoiseZ, fl4AbsValZ );
if ( m_bNoiseAbs )
{
if ( m_vecAbsValInv.x != 0.0f )
{
fl4NoiseX = SubSIMD( Four_Ones, fl4NoiseX );
}
if ( m_vecAbsValInv.y != 0.0f )
{
fl4NoiseY = SubSIMD( Four_Ones, fl4NoiseY );
}
if ( m_vecAbsValInv.z != 0.0f )
{
fl4NoiseZ = SubSIMD( Four_Ones, fl4NoiseZ );
}
}
FourVectors fvOffset;
fvOffset.x = AddSIMD( fl4ValueBaseX, ( MulSIMD( fl4ValueScaleX , fl4NoiseX ) ) );
fvOffset.y = AddSIMD( fl4ValueBaseY, ( MulSIMD( fl4ValueScaleY , fl4NoiseY ) ) );
fvOffset.z = AddSIMD( fl4ValueBaseZ, ( MulSIMD( fl4ValueScaleZ , fl4NoiseZ ) ) );
fvOffset *= pParticles->m_flPreviousDt;
if ( m_bLocalSpace )
{
CPTransform.VectorRotate( fvOffset );
}
*pxyz -= fvOffset;
xyz += attr_stride;
pxyz += attr_stride;
pCreationTime += attr_stride;
}
}
void C_INIT_InitialVelocityNoise::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float flAbsScaleX, flAbsScaleY, flAbsScaleZ;
int nAbsValX, nAbsValY, nAbsValZ;
nAbsValX = 0xffffffff;
nAbsValY = 0xffffffff;
nAbsValZ = 0xffffffff;
flAbsScaleX = 0.5;
flAbsScaleY = 0.5;
flAbsScaleZ = 0.5;
// Set up single if check for absolute value inversion inside the loop
bool m_bNoiseAbs = ( m_vecAbsValInv.x != 0.0f ) || ( m_vecAbsValInv.y != 0.0f ) || ( m_vecAbsValInv.z != 0.0f );
// Set up values for more optimal absolute value calculations inside the loop
if ( m_vecAbsVal.x != 0.0f )
{
nAbsValX = 0x7fffffff;
flAbsScaleX = 1.0;
}
if ( m_vecAbsVal.y != 0.0f )
{
nAbsValY = 0x7fffffff;
flAbsScaleY = 1.0;
}
if ( m_vecAbsVal.z != 0.0f )
{
nAbsValZ = 0x7fffffff;
flAbsScaleZ = 1.0;
}
float ValueScaleX, ValueScaleY, ValueScaleZ, ValueBaseX, ValueBaseY, ValueBaseZ;
ValueScaleX = ( flAbsScaleX *(m_vecOutputMax.x-m_vecOutputMin.x ) );
ValueBaseX = (m_vecOutputMin.x+ ( ( 1.0 - flAbsScaleX ) *( m_vecOutputMax.x-m_vecOutputMin.x ) ) );
ValueScaleY = ( flAbsScaleY *(m_vecOutputMax.y-m_vecOutputMin.y ) );
ValueBaseY = (m_vecOutputMin.y+ ( ( 1.0 - flAbsScaleY ) *( m_vecOutputMax.y-m_vecOutputMin.y ) ) );
ValueScaleZ = ( flAbsScaleZ *(m_vecOutputMax.z-m_vecOutputMin.z ) );
ValueBaseZ = (m_vecOutputMin.z+ ( ( 1.0 - flAbsScaleZ ) *( m_vecOutputMax.z-m_vecOutputMin.z ) ) );
float CoordScale = m_flNoiseScale;
float CoordScaleLoc = m_flNoiseScaleLoc;
Vector ofs_y = Vector( 100000.5, 300000.25, 9000000.75 );
Vector ofs_z = Vector( 110000.25, 310000.75, 9100000.5 );
for( ; nParticleCount--; start_p++ )
{
const float *xyz = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
Vector Coord, Coord2, Coord3, CoordLoc;
SetVectorFromAttribute( CoordLoc, xyz );
CoordLoc += m_vecOffsetLoc;
float Offset = m_flOffset;
Coord = Vector ( (*pCreationTime + Offset), (*pCreationTime + Offset), (*pCreationTime + Offset) );
Coord *= CoordScale;
CoordLoc *= CoordScaleLoc;
Coord += CoordLoc;
Coord2 = ( Coord );
Coord3 = ( Coord );
fltx4 flNoise128;
FourVectors fvNoise;
fvNoise.DuplicateVector( Coord );
flNoise128 = NoiseSIMD( fvNoise );
float flNoiseX = SubFloat( flNoise128, 0 );
fvNoise.DuplicateVector( Coord2 + ofs_y );
flNoise128 = NoiseSIMD( fvNoise );
float flNoiseY = SubFloat( flNoise128, 0 );
fvNoise.DuplicateVector( Coord3 + ofs_z );
flNoise128 = NoiseSIMD( fvNoise );
float flNoiseZ = SubFloat( flNoise128, 0 );
*( (int *) &flNoiseX) &= nAbsValX;
*( (int *) &flNoiseY) &= nAbsValY;
*( (int *) &flNoiseZ) &= nAbsValZ;
if ( m_bNoiseAbs )
{
if ( m_vecAbsValInv.x != 0.0f )
{
flNoiseX = 1.0 - flNoiseX;
}
if ( m_vecAbsValInv.y != 0.0f )
{
flNoiseY = 1.0 - flNoiseY;
}
if ( m_vecAbsValInv.z != 0.0f )
{
flNoiseZ = 1.0 - flNoiseZ;
}
}
Vector poffset;
poffset.x = ( ValueBaseX + ( ValueScaleX * flNoiseX ) );
poffset.y = ( ValueBaseY + ( ValueScaleY * flNoiseY ) );
poffset.z = ( ValueBaseZ + ( ValueScaleZ * flNoiseZ ) );
poffset *= pParticles->m_flPreviousDt;
if ( m_bLocalSpace )
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, *pCreationTime, &mat );
Vector vecTransformLocal = vec3_origin;
VectorRotate( poffset, mat, vecTransformLocal );
poffset = vecTransformLocal;
}
pxyz[0] -= poffset.x;
pxyz[4] -= poffset.y;
pxyz[8] -= poffset.z;
}
}
class C_INIT_RandomLifeTime : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomLifeTime );
float m_fLifetimeMin;
float m_fLifetimeMax;
float m_fLifetimeRandExponent;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const;
void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
if ( m_fLifetimeRandExponent != 1.0f )
{
InitScalarAttributeRandomRangeExpBlock( PARTICLE_ATTRIBUTE_LIFE_DURATION,
m_fLifetimeMin, m_fLifetimeMax, m_fLifetimeRandExponent,
pParticles, start_block, n_blocks );
}
else
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_LIFE_DURATION,
m_fLifetimeMin, m_fLifetimeMax, pParticles, start_block, n_blocks );
}
}
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomLifeTime, "Lifetime Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomLifeTime )
DMXELEMENT_UNPACK_FIELD( "lifetime_min", "0", float, m_fLifetimeMin )
DMXELEMENT_UNPACK_FIELD( "lifetime_max", "0", float, m_fLifetimeMax )
DMXELEMENT_UNPACK_FIELD( "lifetime_random_exponent", "1", float, m_fLifetimeRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomLifeTime )
void C_INIT_RandomLifeTime::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *dtime = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
*dtime = pParticles->RandomFloatExp( m_fLifetimeMin, m_fLifetimeMax, m_fLifetimeRandExponent );
}
}
//-----------------------------------------------------------------------------
// Random radius
//-----------------------------------------------------------------------------
class C_INIT_RandomRadius : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomRadius );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_RADIUS_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const;
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
if ( m_flRadiusRandExponent != 1.0f )
{
InitScalarAttributeRandomRangeExpBlock( PARTICLE_ATTRIBUTE_RADIUS,
m_flRadiusMin, m_flRadiusMax, m_flRadiusRandExponent,
pParticles, start_block, n_blocks );
}
else
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_RADIUS,
m_flRadiusMin, m_flRadiusMax,
pParticles, start_block, n_blocks );
}
}
float m_flRadiusMin;
float m_flRadiusMax;
float m_flRadiusRandExponent;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomRadius, "Radius Random", OPERATOR_PI_RADIUS );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRadius )
DMXELEMENT_UNPACK_FIELD( "radius_min", "1", float, m_flRadiusMin )
DMXELEMENT_UNPACK_FIELD( "radius_max", "1", float, m_flRadiusMax )
DMXELEMENT_UNPACK_FIELD( "radius_random_exponent", "1", float, m_flRadiusRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRadius )
void C_INIT_RandomRadius::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const
{
for( ; nParticleCount--; start_p++ )
{
float *r = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_RADIUS, start_p );
*r = pParticles->RandomFloatExp( m_flRadiusMin, m_flRadiusMax, m_flRadiusRandExponent );
}
}
//-----------------------------------------------------------------------------
// Random alpha
//-----------------------------------------------------------------------------
class C_INIT_RandomAlpha : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomAlpha );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_ALPHA_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_flAlphaMin = m_nAlphaMin / 255.0f;
m_flAlphaMax = m_nAlphaMax / 255.0f;
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
if ( m_flAlphaRandExponent != 1.0f )
{
InitScalarAttributeRandomRangeExpBlock( PARTICLE_ATTRIBUTE_ALPHA,
m_flAlphaMin, m_flAlphaMax, m_flAlphaRandExponent,
pParticles, start_block, n_blocks );
}
else
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_ALPHA,
m_flAlphaMin, m_flAlphaMax,
pParticles, start_block, n_blocks );
}
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *pAlpha = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_ALPHA, start_p );
*pAlpha = pParticles->RandomFloatExp( m_flAlphaMin, m_flAlphaMax, m_flAlphaRandExponent );
}
}
int m_nAlphaMin;
int m_nAlphaMax;
float m_flAlphaMin;
float m_flAlphaMax;
float m_flAlphaRandExponent;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomAlpha, "Alpha Random", OPERATOR_PI_ALPHA );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomAlpha )
DMXELEMENT_UNPACK_FIELD( "alpha_min", "255", int, m_nAlphaMin )
DMXELEMENT_UNPACK_FIELD( "alpha_max", "255", int, m_nAlphaMax )
DMXELEMENT_UNPACK_FIELD( "alpha_random_exponent", "1", float, m_flAlphaRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomAlpha )
//-----------------------------------------------------------------------------
// Random rotation
//-----------------------------------------------------------------------------
class CGeneralRandomRotation : public CParticleOperatorInstance
{
protected:
virtual int GetAttributeToInit( void ) const = 0;
uint32 GetWrittenAttributes( void ) const
{
return (1 << GetAttributeToInit() );
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_flRadians = m_flDegrees * ( M_PI / 180.0f );
m_flRadiansMin = m_flDegreesMin * ( M_PI / 180.0f );
m_flRadiansMax = m_flDegreesMax * ( M_PI / 180.0f );
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
if ( m_flRotationRandExponent != 1.0f )
{
InitScalarAttributeRandomRangeExpBlock( GetAttributeToInit(),
m_flRadiansMin, m_flRadiansMax, m_flRotationRandExponent,
pParticles, start_block, n_blocks );
}
else
{
InitScalarAttributeRandomRangeBlock( GetAttributeToInit(),
m_flRadiansMin, m_flRadiansMax,
pParticles, start_block, n_blocks );
}
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *drot = pParticles->GetFloatAttributePtrForWrite( GetAttributeToInit(), start_p );
*drot = m_flRadians + pParticles->RandomFloatExp( m_flRadiansMin, m_flRadiansMax, m_flRotationRandExponent );
}
}
// User-specified range
float m_flDegreesMin;
float m_flDegreesMax;
float m_flDegrees;
// Converted range
float m_flRadiansMin;
float m_flRadiansMax;
float m_flRadians;
float m_flRotationRandExponent;
};
class CAddGeneralRandomRotation : public CParticleOperatorInstance
{
protected:
virtual int GetAttributeToInit( void ) const = 0;
uint32 GetWrittenAttributes( void ) const
{
return (1 << GetAttributeToInit() );
}
uint32 GetReadAttributes( void ) const
{
return (1 << GetAttributeToInit() );
}
virtual bool InitMultipleOverride() { return true; }
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_flRadians = m_flDegrees * ( M_PI / 180.0f );
m_flRadiansMin = m_flDegreesMin * ( M_PI / 180.0f );
m_flRadiansMax = m_flDegreesMax * ( M_PI / 180.0f );
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
AddScalarAttributeRandomRangeBlock( GetAttributeToInit(),
m_flRadiansMin, m_flRadiansMax, m_flRotationRandExponent,
pParticles, start_block, n_blocks, m_bRandomlyFlipDirection );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
if ( !m_bRandomlyFlipDirection )
{
for( ; nParticleCount--; start_p++ )
{
float *pAttr = pParticles->GetFloatAttributePtrForWrite( GetAttributeToInit(), start_p );
*pAttr += m_flRadians + pParticles->RandomFloatExp( m_flRadiansMin, m_flRadiansMax, m_flRotationRandExponent );
}
}
else
{
for( ; nParticleCount--; start_p++ )
{
float *pAttr = pParticles->GetFloatAttributePtrForWrite( GetAttributeToInit(), start_p );
float flSpeed = m_flRadians + pParticles->RandomFloatExp( m_flRadiansMin, m_flRadiansMax, m_flRotationRandExponent );
bool bFlip = ( pParticles->RandomFloat( -1.0f, 1.0f ) >= 0.0f );
*pAttr += bFlip ? -flSpeed : flSpeed;
}
}
}
// User-specified range
float m_flDegreesMin;
float m_flDegreesMax;
float m_flDegrees;
// Converted range
float m_flRadiansMin;
float m_flRadiansMax;
float m_flRadians;
float m_flRotationRandExponent;
bool m_bRandomlyFlipDirection;
};
//-----------------------------------------------------------------------------
// Random rotation
//-----------------------------------------------------------------------------
class C_INIT_RandomRotation : public CGeneralRandomRotation
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomRotation );
virtual int GetAttributeToInit( void ) const
{
return PARTICLE_ATTRIBUTE_ROTATION;
}
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomRotation, "Rotation Random", OPERATOR_PI_ROTATION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRotation )
DMXELEMENT_UNPACK_FIELD( "rotation_initial", "0", float, m_flDegrees )
DMXELEMENT_UNPACK_FIELD( "rotation_offset_min", "0", float, m_flDegreesMin )
DMXELEMENT_UNPACK_FIELD( "rotation_offset_max", "360", float, m_flDegreesMax )
DMXELEMENT_UNPACK_FIELD( "rotation_random_exponent", "1", float, m_flRotationRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRotation )
//-----------------------------------------------------------------------------
// Random rotation speed
//-----------------------------------------------------------------------------
class C_INIT_RandomRotationSpeed : public CAddGeneralRandomRotation
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomRotationSpeed );
virtual int GetAttributeToInit( void ) const
{
return PARTICLE_ATTRIBUTE_ROTATION_SPEED;
}
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomRotationSpeed, "Rotation Speed Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRotationSpeed )
DMXELEMENT_UNPACK_FIELD( "rotation_speed_constant", "0", float, m_flDegrees )
DMXELEMENT_UNPACK_FIELD( "rotation_speed_random_min", "0", float, m_flDegreesMin )
DMXELEMENT_UNPACK_FIELD( "rotation_speed_random_max", "360", float, m_flDegreesMax )
DMXELEMENT_UNPACK_FIELD( "rotation_speed_random_exponent", "1", float, m_flRotationRandExponent )
DMXELEMENT_UNPACK_FIELD( "randomly_flip_direction", "1", bool, m_bRandomlyFlipDirection )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomRotationSpeed )
//-----------------------------------------------------------------------------
// Random yaw
//-----------------------------------------------------------------------------
class C_INIT_RandomYaw : public CGeneralRandomRotation
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomYaw );
virtual int GetAttributeToInit( void ) const
{
return PARTICLE_ATTRIBUTE_YAW;
}
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomYaw, "Rotation Yaw Random", OPERATOR_PI_YAW );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomYaw )
DMXELEMENT_UNPACK_FIELD( "yaw_initial", "0", float, m_flDegrees )
DMXELEMENT_UNPACK_FIELD( "yaw_offset_min", "0", float, m_flDegreesMin )
DMXELEMENT_UNPACK_FIELD( "yaw_offset_max", "360", float, m_flDegreesMax )
DMXELEMENT_UNPACK_FIELD( "yaw_random_exponent", "1", float, m_flRotationRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomYaw )
//-----------------------------------------------------------------------------
// Random color
//-----------------------------------------------------------------------------
class C_INIT_RandomColor : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomColor );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_TINT_RGB_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
struct C_OP_RandomColorContext_t
{
Vector m_vPrevPosition;
};
size_t GetRequiredContextBytes( void ) const
{
return sizeof( C_OP_RandomColorContext_t );
}
virtual void InitializeContextData( CParticleCollection *pParticles, void *pContext ) const
{
C_OP_RandomColorContext_t *pCtx=reinterpret_cast<C_OP_RandomColorContext_t *>( pContext );
pCtx->m_vPrevPosition = vec3_origin;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_flNormColorMin[0] = (float) m_ColorMin[0] / 255.0f;
m_flNormColorMin[1] = (float) m_ColorMin[1] / 255.0f;
m_flNormColorMin[2] = (float) m_ColorMin[2] / 255.0f;
m_flNormColorMax[0] = (float) m_ColorMax[0] / 255.0f;
m_flNormColorMax[1] = (float) m_ColorMax[1] / 255.0f;
m_flNormColorMax[2] = (float) m_ColorMax[2] / 255.0f;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
C_OP_RandomColorContext_t *pCtx=reinterpret_cast<C_OP_RandomColorContext_t *>( pContext );
Color tint( 255, 255, 255, 255 );
// If we're factoring in luminosity or tint, then get our lighting info for this position
if ( m_flTintPerc )
{
if ( pParticles->m_pParent && pParticles->m_pParent->m_LocalLightingCP == m_nTintCP )
{
tint = pParticles->m_pParent->m_LocalLighting;
}
else
{
// FIXME: Really, we want the emission point for each particle, but for now, we do it more cheaply
// Get our control point
Vector vecOrigin;
pParticles->GetControlPointAtTime( m_nTintCP, pParticles->m_flCurTime, &vecOrigin );
if ( ( ( pCtx->m_vPrevPosition - vecOrigin ).Length() >= m_flUpdateThreshold ) || ( pParticles->m_LocalLightingCP == -1 ) )
{
g_pParticleSystemMgr->Query()->GetLightingAtPoint( vecOrigin, tint );
pParticles->m_LocalLighting = tint;
pParticles->m_LocalLightingCP = m_nTintCP;
pCtx->m_vPrevPosition = vecOrigin;
}
else
tint = pParticles->m_LocalLighting;
}
tint[0] = max ( m_TintMin[0], min( tint[0], m_TintMax[0] ) );
tint[1] = max ( m_TintMin[1], min( tint[1], m_TintMax[1] ) );
tint[2] = max ( m_TintMin[2], min( tint[2], m_TintMax[2] ) );
}
float randomPerc;
float *pColor;
for( ; nParticleCount--; start_p++ )
{
pColor = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_TINT_RGB, start_p );
randomPerc = pParticles->RandomFloat( 0.0f, 1.0f );
// Randomly choose a range between the two colors
pColor[0] = m_flNormColorMin[0] + ( ( m_flNormColorMax[0] - m_flNormColorMin[0] ) * randomPerc );
pColor[4] = m_flNormColorMin[1] + ( ( m_flNormColorMax[1] - m_flNormColorMin[1] ) * randomPerc );
pColor[8] = m_flNormColorMin[2] + ( ( m_flNormColorMax[2] - m_flNormColorMin[2] ) * randomPerc );
// Tint the particles
if ( m_flTintPerc )
{
pColor[0] = Lerp( m_flTintPerc, (float) pColor[0], (float) tint.r() / 255.0f );
pColor[4] = Lerp( m_flTintPerc, (float) pColor[4], (float) tint.g() / 255.0f );
pColor[8] = Lerp( m_flTintPerc, (float) pColor[8], (float) tint.b() / 255.0f );
}
}
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
C_OP_RandomColorContext_t *pCtx=reinterpret_cast<C_OP_RandomColorContext_t *>( pContext );
Color tint( 255, 255, 255, 255 );
size_t attr_stride;
FourVectors *pColor = pParticles->Get4VAttributePtrForWrite( PARTICLE_ATTRIBUTE_TINT_RGB, &attr_stride );
pColor += attr_stride * start_block;
FourVectors fvColorMin;
fvColorMin.DuplicateVector( Vector (m_flNormColorMin[0], m_flNormColorMin[1], m_flNormColorMin[2] ) );
FourVectors fvColorWidth;
fvColorWidth.DuplicateVector( Vector (m_flNormColorMax[0] - m_flNormColorMin[0], m_flNormColorMax[1] - m_flNormColorMin[1], m_flNormColorMax[2] - m_flNormColorMin[2] ) );
int nRandContext = GetSIMDRandContext();
// If we're factoring in luminosity or tint, then get our lighting info for this position
if ( m_flTintPerc )
{
if ( pParticles->m_pParent && pParticles->m_pParent->m_LocalLightingCP == m_nTintCP )
{
tint = pParticles->m_pParent->m_LocalLighting;
}
else
{
// FIXME: Really, we want the emission point for each particle, but for now, we do it more cheaply
// Get our control point
Vector vecOrigin;
pParticles->GetControlPointAtTime( m_nTintCP, pParticles->m_flCurTime, &vecOrigin );
if ( ( ( pCtx->m_vPrevPosition - vecOrigin ).Length() >= m_flUpdateThreshold ) || ( pParticles->m_LocalLightingCP == -1 ) )
{
g_pParticleSystemMgr->Query()->GetLightingAtPoint( vecOrigin, tint );
pParticles->m_LocalLighting = tint;
pParticles->m_LocalLightingCP = m_nTintCP;
pCtx->m_vPrevPosition = vecOrigin;
}
else
tint = pParticles->m_LocalLighting;
}
tint[0] = max ( m_TintMin[0], min( tint[0], m_TintMax[0] ) );
tint[1] = max ( m_TintMin[1], min( tint[1], m_TintMax[1] ) );
tint[2] = max ( m_TintMin[2], min( tint[2], m_TintMax[2] ) );
FourVectors fvTint;
fvTint.DuplicateVector( Vector ( tint[0], tint[1], tint[2] ) );
fltx4 fl4Divisor = ReplicateX4( 1.0f / 255.0f );
fvTint *= fl4Divisor;
fltx4 fl4TintPrc = ReplicateX4( m_flTintPerc );
while( n_blocks-- )
{
FourVectors fvColor = fvColorWidth;
FourVectors fvColor2 = fvTint;
fvColor *= RandSIMD( nRandContext );
fvColor += fvColorMin;
fvColor2 -= fvColor;
fvColor2 *= fl4TintPrc;
fvColor2 += fvColor;
*pColor = fvColor2;
pColor += attr_stride;
}
}
else
{
while( n_blocks-- )
{
FourVectors fvColor = fvColorWidth;
fvColor *= RandSIMD( nRandContext );
fvColor += fvColorMin;
*pColor = fvColor;
pColor += attr_stride;
}
}
ReleaseSIMDRandContext( nRandContext );
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nTintCP;
}
float m_flNormColorMin[3];
float m_flNormColorMax[3];
Color m_ColorMin;
Color m_ColorMax;
Color m_TintMin;
Color m_TintMax;
float m_flTintPerc;
float m_flUpdateThreshold;
int m_nTintCP;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomColor, "Color Random", OPERATOR_PI_TINT_RGB );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomColor )
DMXELEMENT_UNPACK_FIELD( "color1", "255 255 255 255", Color, m_ColorMin )
DMXELEMENT_UNPACK_FIELD( "color2", "255 255 255 255", Color, m_ColorMax )
DMXELEMENT_UNPACK_FIELD( "tint_perc", "0.0", float, m_flTintPerc )
DMXELEMENT_UNPACK_FIELD( "tint control point", "0", int, m_nTintCP )
DMXELEMENT_UNPACK_FIELD( "tint clamp min", "0 0 0 0", Color, m_TintMin )
DMXELEMENT_UNPACK_FIELD( "tint clamp max", "255 255 255 255", Color, m_TintMax )
DMXELEMENT_UNPACK_FIELD( "tint update movement threshold", "32", float, m_flUpdateThreshold )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomColor )
//-----------------------------------------------------------------------------
// Trail Length
//-----------------------------------------------------------------------------
class C_INIT_RandomTrailLength : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomTrailLength );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_TRAIL_LENGTH_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
if ( m_flLengthRandExponent != 1.0f )
{
InitScalarAttributeRandomRangeExpBlock( PARTICLE_ATTRIBUTE_TRAIL_LENGTH,
m_flMinLength, m_flMaxLength, m_flLengthRandExponent,
pParticles, start_block, n_blocks );
}
else
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_TRAIL_LENGTH,
m_flMinLength, m_flMaxLength,
pParticles, start_block, n_blocks );
}
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float *pLength;
for( ; nParticleCount--; start_p++ )
{
pLength = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_TRAIL_LENGTH, start_p );
*pLength = pParticles->RandomFloatExp( m_flMinLength, m_flMaxLength, m_flLengthRandExponent );
}
}
float m_flMinLength;
float m_flMaxLength;
float m_flLengthRandExponent;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomTrailLength, "Trail Length Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomTrailLength )
DMXELEMENT_UNPACK_FIELD( "length_min", "0.1", float, m_flMinLength )
DMXELEMENT_UNPACK_FIELD( "length_max", "0.1", float, m_flMaxLength )
DMXELEMENT_UNPACK_FIELD( "length_random_exponent", "1", float, m_flLengthRandExponent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomTrailLength )
//-----------------------------------------------------------------------------
// Random sequence
//-----------------------------------------------------------------------------
class C_INIT_RandomSequence : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomSequence );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
// TODO: Validate the ranges here!
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER,
m_nSequenceMin, m_nSequenceMax,
pParticles, start_block, n_blocks );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float *pSequence;
for( ; nParticleCount--; start_p++ )
{
pSequence = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER, start_p );
*pSequence = pParticles->RandomInt( m_nSequenceMin, m_nSequenceMax );
}
}
int m_nSequenceMin;
int m_nSequenceMax;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomSequence, "Sequence Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomSequence )
DMXELEMENT_UNPACK_FIELD( "sequence_min", "0", int, m_nSequenceMin )
DMXELEMENT_UNPACK_FIELD( "sequence_max", "0", int, m_nSequenceMax )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomSequence )
//-----------------------------------------------------------------------------
// Position Warp Initializer
// Scales initial position and velocity of particles within a random vector range
//-----------------------------------------------------------------------------
class C_INIT_PositionWarp : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_PositionOffset );
Vector m_vecWarpMin;
Vector m_vecWarpMax;
int m_nControlPointNumber;
float m_flWarpTime, m_flWarpStartTime;
bool m_bInvertWarp;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
}
bool InitMultipleOverride ( void ) { return true; }
};
DEFINE_PARTICLE_OPERATOR( C_INIT_PositionWarp, "Position Modify Warp Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_PositionWarp )
DMXELEMENT_UNPACK_FIELD( "control point number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "warp min", "1 1 1", Vector, m_vecWarpMin )
DMXELEMENT_UNPACK_FIELD( "warp max", "1 1 1", Vector, m_vecWarpMax )
DMXELEMENT_UNPACK_FIELD( "warp transition time (treats min/max as start/end sizes)", "0", float , m_flWarpTime )
DMXELEMENT_UNPACK_FIELD( "warp transition start time", "0", float , m_flWarpStartTime )
DMXELEMENT_UNPACK_FIELD( "reverse warp (0/1)", "0", bool , m_bInvertWarp )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_PositionWarp )
void C_INIT_PositionWarp::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
Vector vecWarpStart = m_vecWarpMin;
Vector vecWarpEnd = m_vecWarpMax;
if ( m_bInvertWarp )
{
vecWarpStart = m_vecWarpMax;
vecWarpEnd = m_vecWarpMin;
}
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
Vector randpos;
if ( m_flWarpTime != 0.0f )
{
float flWarpEnd = m_flWarpStartTime + m_flWarpTime;
float flPercentage = RemapValClamped( *ct, m_flWarpStartTime, flWarpEnd, 0.0, 1.0 );
VectorLerp( vecWarpStart, vecWarpEnd, flPercentage, randpos );
}
else
{
pParticles->RandomVector( m_vecWarpMin, m_vecWarpMax, &randpos );
}
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, *ct, &mat );
Vector vecTransformLocal = vec3_origin;
Vector vecParticlePosition, vecParticlePosition_prev ;
SetVectorFromAttribute( vecParticlePosition, xyz );
SetVectorFromAttribute( vecParticlePosition_prev, pxyz );
// rotate particles from world space into local
VectorITransform( vecParticlePosition, mat, vecTransformLocal );
// multiply position by desired amount
vecTransformLocal.x *= randpos.x;
vecTransformLocal.y *= randpos.y;
vecTransformLocal.z *= randpos.z;
// rotate back into world space
VectorTransform( vecTransformLocal, mat, vecParticlePosition );
// rinse, repeat
VectorITransform( vecParticlePosition_prev, mat, vecTransformLocal );
vecTransformLocal.x *= randpos.x;
vecTransformLocal.y *= randpos.y;
vecTransformLocal.z *= randpos.z;
VectorTransform( vecTransformLocal, mat, vecParticlePosition_prev );
// set positions into floats
SetVectorAttribute( xyz, vecParticlePosition );
SetVectorAttribute( pxyz, vecParticlePosition_prev );
}
}
//-----------------------------------------------------------------------------
// noise initializer
//-----------------------------------------------------------------------------
class C_INIT_CreationNoise : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreationNoise );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK | PARTICLE_ATTRIBUTE_XYZ_MASK;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const;
virtual bool IsScrubSafe() { return true; }
int m_nFieldOutput;
bool m_bAbsVal, m_bAbsValInv;
float m_flOffset;
float m_flOutputMin;
float m_flOutputMax;
float m_flNoiseScale, m_flNoiseScaleLoc;
Vector m_vecOffsetLoc;
float m_flWorldTimeScale;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreationNoise, "Remap Noise to Scalar", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreationNoise )
DMXELEMENT_UNPACK_FIELD( "time noise coordinate scale","0.1",float,m_flNoiseScale)
DMXELEMENT_UNPACK_FIELD( "spatial noise coordinate scale","0.001",float,m_flNoiseScaleLoc)
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "3", int, m_nFieldOutput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "time coordinate offset","0", float, m_flOffset )
DMXELEMENT_UNPACK_FIELD( "spatial coordinate offset","0 0 0", Vector, m_vecOffsetLoc )
DMXELEMENT_UNPACK_FIELD( "absolute value","0", bool, m_bAbsVal )
DMXELEMENT_UNPACK_FIELD( "invert absolute value","0", bool, m_bAbsValInv )
DMXELEMENT_UNPACK_FIELD( "output minimum","0", float, m_flOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1", float, m_flOutputMax )
DMXELEMENT_UNPACK_FIELD( "world time noise coordinate scale","0", float, m_flWorldTimeScale )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreationNoise );
void C_INIT_CreationNoise::InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
float flAbsScale;
fltx4 fl4AbsVal;
fl4AbsVal = CmpEqSIMD( Four_Zeros, Four_Zeros );
flAbsScale = 0.5;
// Set up values for more optimal absolute value calculations inside the loop
if ( m_bAbsVal )
{
fl4AbsVal = LoadAlignedSIMD( (float *) g_SIMD_clear_signmask );
flAbsScale = 1.0;
}
float fMin = m_flOutputMin;
float fMax = m_flOutputMax;
if ( ATTRIBUTES_WHICH_ARE_ANGLES & (1 << m_nFieldOutput ) )
{
fMin *= ( M_PI / 180.0f );
fMax *= ( M_PI / 180.0f );
}
float CoordScale = m_flNoiseScale;
float CoordScaleLoc = m_flNoiseScaleLoc;
float ValueScale, ValueBase;
ValueScale = ( flAbsScale *( fMax - fMin ) );
ValueBase = ( fMin+ ( ( 1.0 - flAbsScale ) *( fMax - fMin ) ) );
fltx4 fl4ValueBase = ReplicateX4( ValueBase );
fltx4 fl4ValueScale = ReplicateX4( ValueScale );
size_t attr_stride;
fltx4 *pAttr = pParticles->GetM128AttributePtrForWrite( m_nFieldOutput, &attr_stride );
pAttr += attr_stride * start_block;
const FourVectors *pxyz = pParticles->Get4VAttributePtr( PARTICLE_ATTRIBUTE_XYZ, &attr_stride );
pxyz += attr_stride * start_block;
const fltx4 *pCreationTime = pParticles->GetM128AttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, &attr_stride );
pCreationTime += attr_stride * start_block;
//setup
fltx4 fl4Offset = ReplicateX4( m_flOffset );
FourVectors fvOffsetLoc;
fvOffsetLoc.DuplicateVector( m_vecOffsetLoc );
FourVectors fvCoordBase;
fvCoordBase.x = AddSIMD(*pCreationTime, fl4Offset);
fvCoordBase.y = AddSIMD(*pCreationTime, fl4Offset);
fvCoordBase.z = AddSIMD(*pCreationTime, fl4Offset);
fvCoordBase *= CoordScale;
while( n_blocks-- )
{
FourVectors fvCoordLoc = *pxyz;
fvCoordLoc += fvOffsetLoc;
FourVectors fvCoord = fvCoordBase;
fvCoordLoc *= CoordScaleLoc;
fvCoord += fvCoordLoc;
fltx4 fl4Noise;
fl4Noise = NoiseSIMD( fvCoord );
fl4Noise = AndSIMD ( fl4Noise, fl4AbsVal );
if ( m_bAbsValInv )
{
fl4Noise = SubSIMD( Four_Ones, fl4Noise );
}
fltx4 fl4InitialNoise;
fl4InitialNoise = AddSIMD( fl4ValueBase, ( MulSIMD( fl4ValueScale, fl4Noise ) ) );
if ( ATTRIBUTES_WHICH_ARE_0_TO_1 & (1 << m_nFieldOutput ) )
{
fl4InitialNoise = MinSIMD( Four_Ones, fl4InitialNoise );
fl4InitialNoise = MaxSIMD( Four_Zeros, fl4InitialNoise );
}
*( pAttr ) = fl4InitialNoise;
pAttr += attr_stride;
pxyz += attr_stride;
}
}
void C_INIT_CreationNoise::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float flAbsScale;
int nAbsVal;
nAbsVal = 0xffffffff;
flAbsScale = 0.5;
if ( m_bAbsVal )
{
nAbsVal = 0x7fffffff;
flAbsScale = 1.0;
}
float fMin = m_flOutputMin;
float fMax = m_flOutputMax;
if ( ATTRIBUTES_WHICH_ARE_ANGLES & (1 << m_nFieldOutput ) )
{
fMin *= ( M_PI / 180.0f );
fMax *= ( M_PI / 180.0f );
}
float CoordScale = m_flNoiseScale;
float CoordScaleLoc = m_flNoiseScaleLoc;
float ValueScale, ValueBase;
ValueScale = ( flAbsScale *( fMax - fMin ) );
ValueBase = ( fMin+ ( ( 1.0 - flAbsScale ) *( fMax - fMin ) ) );
Vector CoordLoc, CoordWorldTime, CoordBase;
const float *pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float Offset = m_flOffset;
CoordBase = Vector ( (*pCreationTime + Offset), (*pCreationTime + Offset), (*pCreationTime + Offset) );
CoordBase *= CoordScale;
CoordWorldTime = Vector( (Plat_MSTime() * m_flWorldTimeScale), (Plat_MSTime() * m_flWorldTimeScale), (Plat_MSTime() * m_flWorldTimeScale) );
CoordBase += CoordWorldTime;
for( ; nParticleCount--; start_p++ )
{
const float *pxyz = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pAttr = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
Vector Coord = CoordBase;
CoordLoc.x = pxyz[0];
CoordLoc.y = pxyz[4];
CoordLoc.z = pxyz[8];
CoordLoc += m_vecOffsetLoc;
CoordLoc *= CoordScaleLoc;
Coord += CoordLoc;
fltx4 flNoise128;
FourVectors fvNoise;
fvNoise.DuplicateVector( Coord );
flNoise128 = NoiseSIMD( fvNoise );
float flNoise = SubFloat( flNoise128, 0 );
*( (int *) &flNoise) &= nAbsVal;
if ( m_bAbsValInv )
{
flNoise = 1.0 - flNoise;
}
float flInitialNoise = ( ValueBase + ( ValueScale * flNoise ) );
if ( ATTRIBUTES_WHICH_ARE_0_TO_1 & (1 << m_nFieldOutput ) )
{
flInitialNoise = clamp(flInitialNoise, 0.0f, 1.0f );
}
*( pAttr ) = flInitialNoise;
}
}
class C_INIT_CreateAlongPath : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateAlongPath );
float m_fMaxDistance;
struct CPathParameters m_PathParams;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
uint64 nStartMask = ( 1ULL << m_PathParams.m_nStartControlPointNumber ) - 1;
uint64 nEndMask = ( 1ULL << ( m_PathParams.m_nEndControlPointNumber + 1 ) ) - 1;
return nEndMask & (~nStartMask);
}
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_PathParams.ClampControlPointIndices();
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateAlongPath, "Position Along Path Random", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateAlongPath )
DMXELEMENT_UNPACK_FIELD( "maximum distance", "0", float, m_fMaxDistance )
DMXELEMENT_UNPACK_FIELD( "bulge", "0", float, m_PathParams.m_flBulge )
DMXELEMENT_UNPACK_FIELD( "start control point number", "0", int, m_PathParams.m_nStartControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "end control point number", "0", int, m_PathParams.m_nEndControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "bulge control 0=random 1=orientation of start pnt 2=orientation of end point", "0", int, m_PathParams.m_nBulgeControl )
DMXELEMENT_UNPACK_FIELD( "mid point position", "0.5", float, m_PathParams.m_flMidPoint )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateAlongPath )
void C_INIT_CreateAlongPath::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
Vector StartPnt, MidP, EndPnt;
pParticles->CalculatePathValues( m_PathParams, *ct, &StartPnt, &MidP, &EndPnt);
float t=pParticles->RandomFloat( 0.0, 1.0 );
Vector randpos;
pParticles->RandomVector( -m_fMaxDistance, m_fMaxDistance, &randpos );
// form delta terms needed for quadratic bezier
Vector Delta0=MidP-StartPnt;
Vector Delta1 = EndPnt-MidP;
Vector L0 = StartPnt+t*Delta0;
Vector L1 = MidP+t*Delta1;
Vector Pnt = L0+(L1-L0)*t;
Pnt+=randpos;
xyz[0] = Pnt.x;
xyz[4] = Pnt.y;
xyz[8] = Pnt.z;
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
pxyz[0] = Pnt.x;
pxyz[4] = Pnt.y;
pxyz[8] = Pnt.z;
}
}
}
class C_INIT_MoveBetweenPoints : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_MoveBetweenPoints );
float m_flSpeedMin, m_flSpeedMax;
float m_flEndSpread;
float m_flStartOffset;
int m_nEndControlPointNumber;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nEndControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_MoveBetweenPoints, "Move Particles Between 2 Control Points", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_MoveBetweenPoints )
DMXELEMENT_UNPACK_FIELD( "minimum speed", "1", float, m_flSpeedMin )
DMXELEMENT_UNPACK_FIELD( "maximum speed", "1", float, m_flSpeedMax )
DMXELEMENT_UNPACK_FIELD( "end spread", "0", float, m_flEndSpread )
DMXELEMENT_UNPACK_FIELD( "start offset", "0", float, m_flStartOffset )
DMXELEMENT_UNPACK_FIELD( "end control point", "1", int, m_nEndControlPointNumber )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_MoveBetweenPoints )
void C_INIT_MoveBetweenPoints::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
bool bMoveStartPnt = ( m_flStartOffset > 0.0 );
for( ; nParticleCount--; start_p++ )
{
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pPrevXYZ = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *dtime = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
Vector StartPnt( pxyz[0], pxyz[4], pxyz[8] );
Vector vecControlPoint;
pParticles->GetControlPointAtTime( m_nEndControlPointNumber, *ct, &vecControlPoint );
Vector randpos(0,0,0);
if ( m_flEndSpread > 0.0 )
{
pParticles->RandomVectorInUnitSphere( &randpos );
randpos *= m_flEndSpread;
}
vecControlPoint += randpos;
Vector vDelta = vecControlPoint - StartPnt;
float flLen = VectorLength( vDelta );
if ( bMoveStartPnt )
{
StartPnt += ( m_flStartOffset/(flLen+FLT_EPSILON) ) * vDelta;
vDelta = vecControlPoint - StartPnt;
flLen = VectorLength( vDelta );
}
float flVel = pParticles->RandomFloat( m_flSpeedMin, m_flSpeedMax );
*dtime = flLen/( flVel+FLT_EPSILON);
Vector poffset = vDelta * (flVel/flLen ) ;
poffset *= pParticles->m_flPreviousDt;
if ( bMoveStartPnt )
{
pxyz[0] = StartPnt.x;
pxyz[1] = StartPnt.y;
pxyz[2] = StartPnt.z;
}
pPrevXYZ[0] = pxyz[0] - poffset.x;
pPrevXYZ[4] = pxyz[4] - poffset.y;
pPrevXYZ[8] = pxyz[8] - poffset.z;
}
}
//-----------------------------------------------------------------------------
// Remap Scalar Initializer
//-----------------------------------------------------------------------------
class C_INIT_RemapScalar : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RemapScalar );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput;
}
uint32 GetReadAttributes( void ) const
{
return 1 << m_nFieldInput;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
int m_nFieldInput;
int m_nFieldOutput;
float m_flInputMin;
float m_flInputMax;
float m_flOutputMin;
float m_flOutputMax;
float m_flStartTime;
float m_flEndTime;
bool m_bScaleInitialRange;
bool m_bActiveRange;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RemapScalar, "Remap Initial Scalar", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapScalar )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime start time (seconds)", "-1", float, m_flStartTime )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime end time (seconds)", "-1", float, m_flEndTime )
DMXELEMENT_UNPACK_FIELD_USERDATA( "input field", "8", int, m_nFieldInput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "input minimum","0", float, m_flInputMin )
DMXELEMENT_UNPACK_FIELD( "input maximum","1", float, m_flInputMax )
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "3", int, m_nFieldOutput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "output minimum","0", float, m_flOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1", float, m_flOutputMax )
DMXELEMENT_UNPACK_FIELD( "output is scalar of initial random range","0", bool, m_bScaleInitialRange )
DMXELEMENT_UNPACK_FIELD( "only active within specified input range","0", bool, m_bActiveRange )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapScalar )
void C_INIT_RemapScalar::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
const float *pCreationTime;
// clamp the result to 0 and 1 if it's alpha
float flMin=m_flOutputMin;
float flMax=m_flOutputMax;
if ( ATTRIBUTES_WHICH_ARE_0_TO_1 & ( 1 << m_nFieldOutput ) )
{
flMin = clamp(m_flOutputMin, 0.0f, 1.0f );
flMax = clamp(m_flOutputMax, 0.0f, 1.0f );
}
// FIXME: SSE-ize
for( ; nParticleCount--; start_p++ )
{
pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
// using raw creation time to map to emitter lifespan
float flLifeTime = *pCreationTime;
float flInput;
if ( ATTRIBUTES_WHICH_ARE_INTS & ( 1 << m_nFieldInput ) )
{
const int *pInput = pParticles->GetIntAttributePtr( m_nFieldInput, start_p );
flInput = float( *pInput );
}
else
{
const float *pInput = pParticles->GetFloatAttributePtr( m_nFieldInput, start_p );
flInput = *pInput;
}
// only use within start/end time frame and, if set, active input range
if ( ( ( ( flLifeTime < m_flStartTime ) || ( flLifeTime >= m_flEndTime ) ) && ( ( m_flStartTime != -1.0f) && ( m_flEndTime != -1.0f) ) ) || ( m_bActiveRange && ( flInput < m_flInputMin || flInput > m_flInputMax ) ) )
continue;
float *pOutput = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
float flOutput = RemapValClamped( flInput, m_flInputMin, m_flInputMax, flMin, flMax );
if ( m_bScaleInitialRange )
{
flOutput = *pOutput * flOutput;
}
if ( ATTRIBUTES_WHICH_ARE_INTS & ( 1 << m_nFieldOutput ) )
{
*pOutput = int ( flOutput );
}
else
{
*pOutput = flOutput;
}
}
}
//-----------------------------------------------------------------------------
// Inherit Velocity Initializer
// Causes particles to inherit the velocity of their CP at spawn
//
//-----------------------------------------------------------------------------
class C_INIT_InheritVelocity : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_InheritVelocity );
int m_nControlPointNumber;
float m_flVelocityScale;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK ;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_CREATION_TIME;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
}
bool InitMultipleOverride ( void ) { return true; }
};
DEFINE_PARTICLE_OPERATOR( C_INIT_InheritVelocity, "Velocity Inherit from Control Point", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_InheritVelocity )
DMXELEMENT_UNPACK_FIELD( "control point number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "velocity scale", "1", float, m_flVelocityScale )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_InheritVelocity )
void C_INIT_InheritVelocity::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
Vector vecControlPoint;
pParticles->GetControlPointAtTime( m_nControlPointNumber, *ct, &vecControlPoint );
Vector vecControlPointPrev;
pParticles->GetControlPointAtPrevTime( m_nControlPointNumber, &vecControlPointPrev );
Vector vecDeltaPos = (vecControlPoint - vecControlPointPrev);
//Vector vecDeltaPos = (vecControlPoint - vecControlPointPrev) * pParticles->m_flDt;
vecDeltaPos.x *= m_flVelocityScale;
vecDeltaPos.y *= m_flVelocityScale;
vecDeltaPos.z *= m_flVelocityScale;
xyz[0] += vecDeltaPos.x;
xyz[4] += vecDeltaPos.y;
xyz[8] += vecDeltaPos.z;
}
}
//-----------------------------------------------------------------------------
// Pre-Age Noise
// Sets particle creation time back to treat newly spawned particle as if
// part of its life has already elapsed.
//-----------------------------------------------------------------------------
class C_INIT_AgeNoise : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_AgeNoise );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK | PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
bool InitMultipleOverride ( void ) { return true; }
bool m_bAbsVal, m_bAbsValInv;
float m_flOffset;
float m_flAgeMin;
float m_flAgeMax;
float m_flNoiseScale, m_flNoiseScaleLoc;
Vector m_vecOffsetLoc;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_AgeNoise, "Lifetime Pre-Age Noise", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_AgeNoise )
DMXELEMENT_UNPACK_FIELD( "time noise coordinate scale","1.0",float,m_flNoiseScale)
DMXELEMENT_UNPACK_FIELD( "spatial noise coordinate scale","1.0",float,m_flNoiseScaleLoc)
DMXELEMENT_UNPACK_FIELD( "time coordinate offset","0", float, m_flOffset )
DMXELEMENT_UNPACK_FIELD( "spatial coordinate offset","0 0 0", Vector, m_vecOffsetLoc )
DMXELEMENT_UNPACK_FIELD( "absolute value","0", bool, m_bAbsVal )
DMXELEMENT_UNPACK_FIELD( "invert absolute value","0", bool, m_bAbsValInv )
DMXELEMENT_UNPACK_FIELD( "start age minimum","0", float, m_flAgeMin )
DMXELEMENT_UNPACK_FIELD( "start age maximum","1", float, m_flAgeMax )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_AgeNoise );
void C_INIT_AgeNoise::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float flAbsScale;
int nAbsVal;
nAbsVal = 0xffffffff;
flAbsScale = 0.5;
if ( m_bAbsVal )
{
nAbsVal = 0x7fffffff;
flAbsScale = 1.0;
}
float fMin = m_flAgeMin;
float fMax = m_flAgeMax;
float CoordScale = m_flNoiseScale;
float CoordScaleLoc = m_flNoiseScaleLoc;
for( ; nParticleCount--; start_p++ )
{
const float *pxyz = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
const float *pLifespan = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
float *pAttr = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float ValueScale, ValueBase;
Vector Coord, CoordLoc;
CoordLoc.x = pxyz[0];
CoordLoc.y = pxyz[4];
CoordLoc.z = pxyz[8];
CoordLoc += m_vecOffsetLoc;
float Offset = m_flOffset;
Coord = Vector ( (*pCreationTime + Offset), (*pCreationTime + Offset), (*pCreationTime + Offset) );
Coord *= CoordScale;
CoordLoc *= CoordScaleLoc;
Coord += CoordLoc;
fltx4 flNoise128;
FourVectors fvNoise;
fvNoise.DuplicateVector( Coord );
flNoise128 = NoiseSIMD( fvNoise );
float flNoise = SubFloat( flNoise128, 0 );
*( (int *) &flNoise) &= nAbsVal;
ValueScale = ( flAbsScale *( fMax - fMin ) );
ValueBase = ( fMin+ ( ( 1.0 - flAbsScale ) *( fMax - fMin ) ) );
if ( m_bAbsValInv )
{
flNoise = 1.0 - flNoise;
}
float flInitialNoise = ( ValueBase + ( ValueScale * flNoise ) );
flInitialNoise = clamp(flInitialNoise, 0.0f, 1.0f );
flInitialNoise *= *pLifespan;
*( pAttr ) = *pCreationTime - flInitialNoise;
}
}
//-----------------------------------------------------------------------------
// LifeTime Sequence Length
//-----------------------------------------------------------------------------
class C_INIT_SequenceLifeTime : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_SequenceLifeTime );
float m_flFramerate;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER_MASK;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_SequenceLifeTime, "Lifetime From Sequence", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_SequenceLifeTime )
DMXELEMENT_UNPACK_FIELD( "Frames Per Second", "30", float, m_flFramerate )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_SequenceLifeTime )
void C_INIT_SequenceLifeTime::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
if ( ( m_flFramerate != 0.0f ) && ( pParticles->m_Sheet() ) )
{
for( ; nParticleCount--; start_p++ )
{
const float *flSequence = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER, start_p );
float *dtime = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
int nSequence = *flSequence;
if ( pParticles->m_Sheet()->m_flFrameSpan[nSequence] != 0 )
{
*dtime = pParticles->m_Sheet()->m_flFrameSpan[nSequence] / m_flFramerate;
}
else
{
*dtime = 1.0;
}
}
}
}
//-----------------------------------------------------------------------------
// Create In Hierarchy
//-----------------------------------------------------------------------------
class C_INIT_CreateInHierarchy : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateInHierarchy );
float m_fMaxDistance;
float m_flGrowthTime;
//float m_flTraceDist;
float m_flDesiredMidPoint;
int m_nOrientation;
float m_flBulgeFactor;
int m_nDesiredEndPoint;
int m_nDesiredStartPoint;
bool m_bUseHighestEndCP;
Vector m_vecDistanceBias, m_vecDistanceBiasAbs;
bool m_bDistanceBias, m_bDistanceBiasAbs;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
uint64 nStartMask = ( 1ULL << m_nDesiredStartPoint ) - 1;
uint64 nEndMask = m_bUseHighestEndCP ? 0xFFFFFFFFFFFFFFFFll : ( 1ULL << ( m_nDesiredEndPoint + 1 ) ) - 1;
return nEndMask & (~nStartMask);
}
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
//fixme - confirm CPs
// m_PathParams.ClampControlPointIndices();
m_bDistanceBias = ( m_vecDistanceBias.x != 1.0f ) || ( m_vecDistanceBias.y != 1.0f ) || ( m_vecDistanceBias.z != 1.0f );
m_bDistanceBiasAbs = ( m_vecDistanceBiasAbs.x != 0.0f ) || ( m_vecDistanceBiasAbs.y != 0.0f ) || ( m_vecDistanceBiasAbs.z != 0.0f );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateInHierarchy, "Position In CP Hierarchy", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateInHierarchy )
DMXELEMENT_UNPACK_FIELD( "maximum distance", "0", float, m_fMaxDistance )
DMXELEMENT_UNPACK_FIELD( "bulge", "0", float, m_flBulgeFactor )
DMXELEMENT_UNPACK_FIELD( "start control point number", "0", int, m_nDesiredStartPoint )
DMXELEMENT_UNPACK_FIELD( "end control point number", "1", int, m_nDesiredEndPoint )
DMXELEMENT_UNPACK_FIELD( "bulge control 0=random 1=orientation of start pnt 2=orientation of end point", "0", int, m_nOrientation )
DMXELEMENT_UNPACK_FIELD( "mid point position", "0.5", float, m_flDesiredMidPoint )
DMXELEMENT_UNPACK_FIELD( "growth time", "0.0", float, m_flGrowthTime )
//DMXELEMENT_UNPACK_FIELD( "trace distance for optional culling", "0.0", float, m_flTraceDist )
DMXELEMENT_UNPACK_FIELD( "use highest supplied end point", "0", bool, m_bUseHighestEndCP )
DMXELEMENT_UNPACK_FIELD( "distance_bias", "1 1 1", Vector, m_vecDistanceBias )
DMXELEMENT_UNPACK_FIELD( "distance_bias_absolute_value", "0 0 0", Vector, m_vecDistanceBiasAbs )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateInHierarchy )
void C_INIT_CreateInHierarchy::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
int nEndCP;
float flGrowth;
struct CPathParameters PathParams;
PathParams.m_flBulge = m_flBulgeFactor;
PathParams.m_nBulgeControl = m_nOrientation;
PathParams.m_flMidPoint = m_flDesiredMidPoint;
int nRealEndPoint;
if ( m_bUseHighestEndCP )
{
nRealEndPoint = pParticles->GetHighestControlPoint();
}
else
{
nRealEndPoint = m_nDesiredEndPoint;
}
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
if ( ( pParticles->m_flCurTime <= m_flGrowthTime ) && ( nRealEndPoint > 0 ) )
{
float flCurrentEndCP = RemapValClamped( *ct, 0.0f, m_flGrowthTime, min( m_nDesiredStartPoint + 1, nRealEndPoint ), nRealEndPoint );
nEndCP = pParticles->RandomInt( min( m_nDesiredStartPoint + 1, (int)flCurrentEndCP ), flCurrentEndCP );
// clamp growth to the appropriate values...
float flEndTime = flCurrentEndCP / float(nRealEndPoint) ;
flGrowth = RemapValClamped( *ct, 0.0f, m_flGrowthTime, 0.0, flEndTime );
}
else
{
int nLowestStartPoint = min( m_nDesiredStartPoint + 1, nRealEndPoint );
nEndCP = pParticles->RandomInt( nLowestStartPoint, nRealEndPoint );
flGrowth = 1.0;
}
PathParams.m_nStartControlPointNumber = pParticles->m_ControlPoints[nEndCP].m_nParent;
PathParams.m_nEndControlPointNumber = nEndCP;
Vector StartPnt, MidP, EndPnt;
pParticles->CalculatePathValues( PathParams, *ct, &StartPnt, &MidP, &EndPnt);
EndPnt *= flGrowth;
float t=pParticles->RandomFloat( 0.0, 1.0 );
Vector randpos;
pParticles->RandomVector( -m_fMaxDistance, m_fMaxDistance, &randpos );
if ( m_bDistanceBiasAbs )
{
if ( m_vecDistanceBiasAbs.x != 0.0f )
{
randpos.x = fabs(randpos.x);
}
if ( m_vecDistanceBiasAbs.y != 0.0f )
{
randpos.y = fabs(randpos.y);
}
if ( m_vecDistanceBiasAbs.z != 0.0f )
{
randpos.z = fabs(randpos.z);
}
}
randpos *= m_vecDistanceBias;
// form delta terms needed for quadratic bezier
Vector Delta0=MidP-StartPnt;
Vector Delta1 = EndPnt-MidP;
Vector L0 = StartPnt+t*Delta0;
Vector L1 = MidP+t*Delta1;
Vector Pnt = L0+(L1-L0)*t;
Pnt+=randpos;
// Optional Culling based on configurable trace distance. Failing particle are destroyed
//disabled for now.
//if ( m_flTraceDist != 0.0f )
//{
// // Trace down
// Vector TraceDir=Vector(0, 0, -1);
// // now set the trace distance
// // note - probably need to offset Pnt upwards for some fudge factor on irregular surfaces
// CBaseTrace tr;
// Vector RayStart=Pnt;
// float flRadius = m_flTraceDist;
// g_pParticleSystemMgr->Query()->TraceLine( RayStart, ( RayStart + ( TraceDir * flRadius ) ), MASK_SOLID, NULL, COLLISION_GROUP_NONE, &tr );
// if ( tr.fraction == 1.0 )
// {
// //If the trace hit nothing, kill the particle.
// pParticles->KillParticle( start_p );
// }
// else
// {
// //If we hit something, set particle position to collision position
// Pnt += tr.endpos;
// //FIXME - if we add a concept of a particle normal (for example, aligned quads or decals, set it here)
// }
//}
xyz[0] = Pnt.x;
xyz[4] = Pnt.y;
xyz[8] = Pnt.z;
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
pxyz[0] = Pnt.x;
pxyz[4] = Pnt.y;
pxyz[8] = Pnt.z;
}
}
}
//-----------------------------------------------------------------------------
// Remap initial Scalar to Vector Initializer
//-----------------------------------------------------------------------------
class C_INIT_RemapScalarToVector : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RemapScalarToVector );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 1 << m_nFieldInput;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
int m_nFieldInput;
int m_nFieldOutput;
float m_flInputMin;
float m_flInputMax;
Vector m_vecOutputMin;
Vector m_vecOutputMax;
float m_flStartTime;
float m_flEndTime;
bool m_bScaleInitialRange;
int m_nControlPointNumber;
bool m_bLocalCoords;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RemapScalarToVector, "Remap Scalar to Vector", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapScalarToVector )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime start time (seconds)", "-1", float, m_flStartTime )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime end time (seconds)", "-1", float, m_flEndTime )
DMXELEMENT_UNPACK_FIELD_USERDATA( "input field", "8", int, m_nFieldInput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "input minimum","0", float, m_flInputMin )
DMXELEMENT_UNPACK_FIELD( "input maximum","1", float, m_flInputMax )
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "0", int, m_nFieldOutput, "intchoice particlefield_vector" )
DMXELEMENT_UNPACK_FIELD( "output minimum","0 0 0", Vector, m_vecOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1 1 1", Vector, m_vecOutputMax )
DMXELEMENT_UNPACK_FIELD( "output is scalar of initial random range","0", bool, m_bScaleInitialRange )
DMXELEMENT_UNPACK_FIELD( "use local system", "1", bool, m_bLocalCoords )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapScalarToVector )
void C_INIT_RemapScalarToVector::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
const float *pCreationTime;
// FIXME: SSE-ize
for( ; nParticleCount--; start_p++ )
{
pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
// using raw creation time to map to emitter lifespan
float flLifeTime = *pCreationTime;
// only use within start/end time frame
if ( ( ( flLifeTime < m_flStartTime ) || ( flLifeTime >= m_flEndTime ) ) && ( ( m_flStartTime != -1.0f) && ( m_flEndTime != -1.0f) ) )
continue;
const float *pInput = pParticles->GetFloatAttributePtr( m_nFieldInput, start_p );
float *pOutput = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
Vector vecOutput = vec3_origin;
vecOutput.x = RemapValClamped( *pInput, m_flInputMin, m_flInputMax, m_vecOutputMin.x, m_vecOutputMax.x );
vecOutput.y = RemapValClamped( *pInput, m_flInputMin, m_flInputMax, m_vecOutputMin.y, m_vecOutputMax.y );
vecOutput.z = RemapValClamped( *pInput, m_flInputMin, m_flInputMax, m_vecOutputMin.z, m_vecOutputMax.z );
if ( m_nFieldOutput == 0 )
{
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
if ( !m_bLocalCoords )
{
Vector vecControlPoint;
pParticles->GetControlPointAtTime( m_nControlPointNumber, *pCreationTime, &vecControlPoint );
vecOutput += vecControlPoint;
Vector vecOutputPrev = vecOutput;
if ( m_bScaleInitialRange )
{
Vector vecScaleInitial;
Vector vecScaleInitialPrev;
SetVectorFromAttribute ( vecScaleInitial, pOutput );
SetVectorFromAttribute ( vecScaleInitialPrev, pxyz );
vecOutput *= vecScaleInitial;
vecOutputPrev *= vecScaleInitialPrev;
}
SetVectorAttribute( pOutput, vecOutput );
SetVectorAttribute( pxyz, vecOutputPrev );
}
else
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nControlPointNumber, *pCreationTime, &mat );
Vector vecTransformLocal = vec3_origin;
VectorTransform( vecOutput, mat, vecTransformLocal );
vecOutput = vecTransformLocal;
Vector vecOutputPrev = vecOutput;
if ( m_bScaleInitialRange )
{
Vector vecScaleInitial;
Vector vecScaleInitialPrev;
SetVectorFromAttribute ( vecScaleInitial, pOutput );
SetVectorFromAttribute ( vecScaleInitialPrev, pxyz );
vecOutput *= vecScaleInitial;
vecOutputPrev *= vecScaleInitialPrev;
}
SetVectorAttribute( pOutput, vecOutput );
SetVectorAttribute( pxyz, vecOutput );
}
}
else
{
if ( m_bScaleInitialRange )
{
Vector vecScaleInitial;
SetVectorFromAttribute ( vecScaleInitial, pOutput );
vecOutput *= vecScaleInitial;
}
SetVectorAttribute( pOutput, vecOutput );
}
}
}
//-----------------------------------------------------------------------------
// Create particles sequentially along a path
//-----------------------------------------------------------------------------
struct SequentialPathContext_t
{
int m_nParticleCount;
float m_flStep;
int m_nCountAmount;
};
class C_INIT_CreateSequentialPath : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateSequentialPath );
float m_fMaxDistance;
float m_flNumToAssign;
bool m_bLoop;
struct CPathParameters m_PathParams;
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
uint64 nStartMask = ( 1ULL << m_PathParams.m_nStartControlPointNumber ) - 1;
uint64 nEndMask = ( 1ULL << ( m_PathParams.m_nEndControlPointNumber + 1 ) ) - 1;
return nEndMask & (~nStartMask);
}
virtual void InitializeContextData( CParticleCollection *pParticles, void *pContext ) const
{
SequentialPathContext_t *pCtx = reinterpret_cast<SequentialPathContext_t *>( pContext );
pCtx->m_nParticleCount = 0;
if ( m_flNumToAssign > 1.0f )
{
pCtx->m_flStep = 1.0f / ( m_flNumToAssign - 1 );
}
else
{
pCtx->m_flStep = 0.0f;
}
pCtx->m_nCountAmount = 1;
}
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_PathParams.ClampControlPointIndices();
}
size_t GetRequiredContextBytes( void ) const
{
return sizeof( SequentialPathContext_t );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateSequentialPath, "Position Along Path Sequential", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateSequentialPath )
DMXELEMENT_UNPACK_FIELD( "maximum distance", "0", float, m_fMaxDistance )
DMXELEMENT_UNPACK_FIELD( "bulge", "0", float, m_PathParams.m_flBulge )
DMXELEMENT_UNPACK_FIELD( "start control point number", "0", int, m_PathParams.m_nStartControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "end control point number", "0", int, m_PathParams.m_nEndControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "bulge control 0=random 1=orientation of start pnt 2=orientation of end point", "0", int, m_PathParams.m_nBulgeControl )
DMXELEMENT_UNPACK_FIELD( "mid point position", "0.5", float, m_PathParams.m_flMidPoint )
DMXELEMENT_UNPACK_FIELD( "particles to map from start to end", "100", float, m_flNumToAssign )
DMXELEMENT_UNPACK_FIELD( "restart behavior (0 = bounce, 1 = loop )", "1", bool, m_bLoop )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateSequentialPath )
void C_INIT_CreateSequentialPath::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
// NOTE: Using C_OP_ContinuousEmitter:: avoids a virtual function call
SequentialPathContext_t *pCtx = reinterpret_cast<SequentialPathContext_t *>( pContext );
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
Vector StartPnt, MidP, EndPnt;
pParticles->CalculatePathValues( m_PathParams, *ct, &StartPnt, &MidP, &EndPnt);
if ( pCtx->m_nParticleCount >= m_flNumToAssign || pCtx->m_nParticleCount < 0 )
{
if ( m_bLoop )
{
pCtx->m_nParticleCount = 0;
}
else
{
pCtx->m_nCountAmount *= -1;
pCtx->m_nParticleCount = min ( pCtx->m_nParticleCount, (int)( m_flNumToAssign - 1) );
pCtx->m_nParticleCount = max ( pCtx->m_nParticleCount, 1 );
}
}
float t= pCtx->m_nParticleCount * pCtx->m_flStep;
Vector randpos;
pParticles->RandomVector( -m_fMaxDistance, m_fMaxDistance, &randpos );
// form delta terms needed for quadratic bezier
Vector Delta0=MidP-StartPnt;
Vector Delta1 = EndPnt-MidP;
Vector L0 = StartPnt+t*Delta0;
Vector L1 = MidP+t*Delta1;
Vector Pnt = L0+(L1-L0)*t;
Pnt+=randpos;
xyz[0] = Pnt.x;
xyz[4] = Pnt.y;
xyz[8] = Pnt.z;
if ( pxyz && ( nAttributeWriteMask & PARTICLE_ATTRIBUTE_PREV_XYZ_MASK ) )
{
pxyz[0] = Pnt.x;
pxyz[4] = Pnt.y;
pxyz[8] = Pnt.z;
}
pCtx->m_nParticleCount += pCtx->m_nCountAmount;
}
}
//-----------------------------------------------------------------------------
// Initial Repulsion Velocity - repulses the particles from nearby surfaces
// on spawn
//-----------------------------------------------------------------------------
class C_INIT_InitialRepulsionVelocity : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_InitialRepulsionVelocity );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK | PARTICLE_ATTRIBUTE_RADIUS_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nControlPointNumber;
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nCollisionGroupNumber = g_pParticleSystemMgr->Query()->GetCollisionGroupFromName( m_CollisionGroupName );
m_nControlPointNumber = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nControlPointNumber ) );
}
bool InitMultipleOverride ( void ) { return true; }
char m_CollisionGroupName[128];
int m_nCollisionGroupNumber;
Vector m_vecOutputMin;
Vector m_vecOutputMax;
int nRemainingBlocks;
int m_nControlPointNumber;
bool m_bPerParticle;
bool m_bTranslate;
bool m_bProportional;
float m_flTraceLength;
bool m_bPerParticleTR;
bool m_bInherit;
int m_nChildCP;
int m_nChildGroupID;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_InitialRepulsionVelocity, "Velocity Repulse from World", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_InitialRepulsionVelocity )
DMXELEMENT_UNPACK_FIELD( "minimum velocity","0 0 0", Vector, m_vecOutputMin )
DMXELEMENT_UNPACK_FIELD( "maximum velocity","1 1 1", Vector, m_vecOutputMax )
DMXELEMENT_UNPACK_FIELD_STRING( "collision group", "NONE", m_CollisionGroupName )
DMXELEMENT_UNPACK_FIELD( "control_point_number", "0", int, m_nControlPointNumber )
DMXELEMENT_UNPACK_FIELD( "Per Particle World Collision Tests", "0", bool, m_bPerParticle )
DMXELEMENT_UNPACK_FIELD( "Use radius for Per Particle Trace Length", "0", bool, m_bPerParticleTR )
DMXELEMENT_UNPACK_FIELD( "Offset instead of accelerate", "0", bool, m_bTranslate )
DMXELEMENT_UNPACK_FIELD( "Offset proportional to radius 0/1", "0", bool, m_bProportional )
DMXELEMENT_UNPACK_FIELD( "Trace Length", "64.0", float, m_flTraceLength )
DMXELEMENT_UNPACK_FIELD( "Inherit from Parent", "0", bool, m_bInherit )
DMXELEMENT_UNPACK_FIELD( "control points to broadcast to children (n + 1)", "-1", int, m_nChildCP )
DMXELEMENT_UNPACK_FIELD( "Child Group ID to affect", "0", int, m_nChildGroupID )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_InitialRepulsionVelocity );
void C_INIT_InitialRepulsionVelocity::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
Vector d[6];
//All cardinal directions
d[0] = Vector( 1, 0, 0 );
d[1] = Vector( -1, 0, 0 );
d[2] = Vector( 0, 1, 0 );
d[3] = Vector( 0, -1, 0 );
d[4] = Vector( 0, 0, 1 );
d[5] = Vector( 0, 0, -1 );
//Init the results
Vector resultDirection;
float resultForce;
if ( m_bPerParticle )
{
for( ; nParticleCount--; start_p++ )
{
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz_prev = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *radius = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_RADIUS, start_p );
Vector vecCurrentPos;
SetVectorFromAttribute( vecCurrentPos, pxyz );
resultDirection.Init();
resultForce = 0.0f;
//Get the aggregate force vector
for ( int i = 0; i < 6; i++ )
{
//Press out
float flTraceDistance = m_flTraceLength;
if ( m_bPerParticleTR )
{
flTraceDistance = *radius;
}
Vector endpos = vecCurrentPos + ( d[i] * flTraceDistance );
//Trace into the world
CBaseTrace tr;
g_pParticleSystemMgr->Query()->TraceLine( vecCurrentPos, endpos, CONTENTS_SOLID, NULL, m_nCollisionGroupNumber, &tr );
//Push back a proportional amount to the probe
d[i] = -d[i] * (1.0f-tr.fraction);
assert(( 1.0f - tr.fraction ) >= 0.0f );
resultForce += 1.0f-tr.fraction;
resultDirection += d[i];
}
//If we've hit nothing, then point up
if ( resultDirection == vec3_origin )
{
resultDirection = Vector( 0, 0, 1 );
resultForce = 0.0f;
}
//Just return the direction
VectorNormalize( resultDirection );
resultDirection *= resultForce;
Vector vecRepulsionAmount;
vecRepulsionAmount.x = Lerp( resultForce, m_vecOutputMin.x, m_vecOutputMax.x );
vecRepulsionAmount.y = Lerp( resultForce, m_vecOutputMin.y, m_vecOutputMax.y );
vecRepulsionAmount.z = Lerp( resultForce, m_vecOutputMin.z, m_vecOutputMax.z );
vecRepulsionAmount *= resultDirection;
if ( m_bProportional )
{
vecRepulsionAmount *= *radius;
}
pxyz[0] += vecRepulsionAmount.x;
pxyz[4] += vecRepulsionAmount.y;
pxyz[8] += vecRepulsionAmount.z;
if ( m_bTranslate )
{
pxyz_prev[0] += vecRepulsionAmount.x;
pxyz_prev[4] += vecRepulsionAmount.y;
pxyz_prev[8] += vecRepulsionAmount.z;
}
}
}
else
{
Vector vecRepulsionAmount;
if ( m_bInherit )
{
float *ct = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
pParticles->GetControlPointAtTime( m_nControlPointNumber, *ct, &resultDirection );
Vector vecPassedForce;
pParticles->GetControlPointAtTime( m_nControlPointNumber+1, *ct, &vecPassedForce );
vecRepulsionAmount.x = Lerp( vecPassedForce.x, m_vecOutputMin.x, m_vecOutputMax.x );
vecRepulsionAmount.y = Lerp( vecPassedForce.x, m_vecOutputMin.y, m_vecOutputMax.y );
vecRepulsionAmount.z = Lerp( vecPassedForce.x, m_vecOutputMin.z, m_vecOutputMax.z );
vecRepulsionAmount *= resultDirection;
}
else
{
float *ct = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
Vector vecControlPoint;
pParticles->GetControlPointAtTime( m_nControlPointNumber, *ct, &vecControlPoint );
Vector vecCurrentPos = vecControlPoint;
resultDirection.Init();
resultForce = 0.0f;
//Get the aggregate force vector
for ( int i = 0; i < 6; i++ )
{
//Press out
Vector endpos = vecCurrentPos + ( d[i] * m_flTraceLength );
//Trace into the world
CBaseTrace tr;
g_pParticleSystemMgr->Query()->TraceLine( vecCurrentPos, endpos, CONTENTS_SOLID, NULL, m_nCollisionGroupNumber, &tr );
//Push back a proportional amount to the probe
d[i] = -d[i] * (1.0f-tr.fraction);
assert(( 1.0f - tr.fraction ) >= 0.0f );
resultForce += 1.0f-tr.fraction;
resultDirection += d[i];
}
//If we've hit nothing, then point up
if ( resultDirection == vec3_origin )
{
resultDirection = Vector( 0, 0, 1 );
resultForce = 0.0f;
}
//Just return the direction
VectorNormalize( resultDirection );
resultDirection *= resultForce;
vecRepulsionAmount.x = Lerp( resultForce, m_vecOutputMin.x, m_vecOutputMax.x );
vecRepulsionAmount.y = Lerp( resultForce, m_vecOutputMin.y, m_vecOutputMax.y );
vecRepulsionAmount.z = Lerp( resultForce, m_vecOutputMin.z, m_vecOutputMax.z );
vecRepulsionAmount *= resultDirection;
if ( m_nChildCP != -1 )
{
for( CParticleCollection *pChild = pParticles->m_Children.m_pHead; pChild; pChild = pChild->m_pNext )
{
if ( pChild->GetGroupID() == m_nChildGroupID )
{
Vector vecPassForce = Vector(resultForce, 0, 0);
pChild->SetControlPoint( m_nChildCP, resultDirection );
pChild->SetControlPoint( m_nChildCP+1, vecPassForce );
}
}
}
}
for( ; nParticleCount--; start_p++ )
{
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz_prev = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *radius = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_RADIUS, start_p );
if ( m_bProportional )
{
vecRepulsionAmount *= *radius;
}
pxyz[0] += vecRepulsionAmount.x;
pxyz[4] += vecRepulsionAmount.y;
pxyz[8] += vecRepulsionAmount.z;
if ( m_bTranslate )
{
pxyz_prev[0] += vecRepulsionAmount.x;
pxyz_prev[4] += vecRepulsionAmount.y;
pxyz_prev[8] += vecRepulsionAmount.z;
}
}
}
}
//-----------------------------------------------------------------------------
// Random Yaw Flip
//-----------------------------------------------------------------------------
class C_INIT_RandomYawFlip : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomYawFlip );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_YAW_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const;
float m_flPercent;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomYawFlip, "Rotation Yaw Flip Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomYawFlip )
DMXELEMENT_UNPACK_FIELD( "Flip Percentage", ".5", float, m_flPercent )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomYawFlip )
void C_INIT_RandomYawFlip::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
for( ; nParticleCount--; start_p++ )
{
float flChance = pParticles->RandomFloat( 0.0, 1.0 );
if ( flChance < m_flPercent )
{
float flRadians = 180 * ( M_PI / 180.0f );
float *drot = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_YAW, start_p );
*drot += flRadians;
}
}
}
//-----------------------------------------------------------------------------
// Random second sequence
//-----------------------------------------------------------------------------
class C_INIT_RandomSecondSequence : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RandomSecondSequence );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER1_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
// TODO: Validate the ranges here!
}
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
InitScalarAttributeRandomRangeBlock( PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER1,
m_nSequenceMin, m_nSequenceMax,
pParticles, start_block, n_blocks );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p, int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
float *pSequence;
for( ; nParticleCount--; start_p++ )
{
pSequence = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_SEQUENCE_NUMBER1, start_p );
*pSequence = pParticles->RandomInt( m_nSequenceMin, m_nSequenceMax );
}
}
int m_nSequenceMin;
int m_nSequenceMax;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RandomSecondSequence, "Sequence Two Random", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomSecondSequence )
DMXELEMENT_UNPACK_FIELD( "sequence_min", "0", int, m_nSequenceMin )
DMXELEMENT_UNPACK_FIELD( "sequence_max", "0", int, m_nSequenceMax )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RandomSecondSequence )
//-----------------------------------------------------------------------------
// Remap CP to Scalar Initializer
//-----------------------------------------------------------------------------
class C_INIT_RemapCPtoScalar : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RemapCPtoScalar );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nCPInput;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nField = int (clamp (m_nField, 0, 2));
}
int m_nCPInput;
int m_nFieldOutput;
int m_nField;
float m_flInputMin;
float m_flInputMax;
float m_flOutputMin;
float m_flOutputMax;
float m_flStartTime;
float m_flEndTime;
bool m_bScaleInitialRange;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RemapCPtoScalar, "Remap Control Point to Scalar", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapCPtoScalar )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime start time (seconds)", "-1", float, m_flStartTime )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime end time (seconds)", "-1", float, m_flEndTime )
DMXELEMENT_UNPACK_FIELD( "input control point number", "0", int, m_nCPInput )
DMXELEMENT_UNPACK_FIELD( "input minimum","0", float, m_flInputMin )
DMXELEMENT_UNPACK_FIELD( "input maximum","1", float, m_flInputMax )
DMXELEMENT_UNPACK_FIELD( "input field 0-2 X/Y/Z","0", int, m_nField )
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "3", int, m_nFieldOutput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "output minimum","0", float, m_flOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1", float, m_flOutputMax )
DMXELEMENT_UNPACK_FIELD( "output is scalar of initial random range","0", bool, m_bScaleInitialRange )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapCPtoScalar )
void C_INIT_RemapCPtoScalar::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
const float *pCreationTime;
// clamp the result to 0 and 1 if it's alpha
float flMin=m_flOutputMin;
float flMax=m_flOutputMax;
if ( ATTRIBUTES_WHICH_ARE_0_TO_1 & ( 1 << m_nFieldOutput ) )
{
flMin = clamp(m_flOutputMin, 0.0f, 1.0f );
flMax = clamp(m_flOutputMax, 0.0f, 1.0f );
}
Vector vecControlPoint;
float *ct = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
pParticles->GetControlPointAtTime( m_nCPInput, *ct, &vecControlPoint );
float flInput = vecControlPoint[m_nField];
// FIXME: SSE-ize
for( ; nParticleCount--; start_p++ )
{
pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
// using raw creation time to map to emitter lifespan
float flLifeTime = *pCreationTime;
// only use within start/end time frame
if ( ( ( flLifeTime < m_flStartTime ) || ( flLifeTime >= m_flEndTime ) ) && ( ( m_flStartTime != -1.0f) && ( m_flEndTime != -1.0f) ) )
continue;
float *pOutput = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
float flOutput = RemapValClamped( flInput, m_flInputMin, m_flInputMax, flMin, flMax );
if ( m_bScaleInitialRange )
{
flOutput = *pOutput * flOutput;
}
if ( ATTRIBUTES_WHICH_ARE_INTS & ( 1 << m_nFieldOutput ) )
{
*pOutput = int ( flOutput );
}
else
{
*pOutput = flOutput;
}
}
}
//-----------------------------------------------------------------------------
// Remap CP to Vector Initializer
//-----------------------------------------------------------------------------
class C_INIT_RemapCPtoVector : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_RemapCPtoVector );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
uint64 nMask = ( 1ULL << m_nCPInput );
if ( m_nLocalSpaceCP != -1 )
{
nMask |= ( 1ULL << m_nLocalSpaceCP );
}
return nMask;
}
bool InitMultipleOverride ( void ) { return true; }
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
virtual void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nField = int (clamp (m_nField, 0, 2));
}
int m_nCPInput;
int m_nFieldOutput;
int m_nField;
Vector m_vInputMin;
Vector m_vInputMax;
Vector m_vOutputMin;
Vector m_vOutputMax;
float m_flStartTime;
float m_flEndTime;
bool m_bScaleInitialRange;
bool m_bOffset;
bool m_bAccelerate;
int m_nLocalSpaceCP;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_RemapCPtoVector, "Remap Control Point to Vector", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapCPtoVector )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime start time (seconds)", "-1", float, m_flStartTime )
DMXELEMENT_UNPACK_FIELD( "emitter lifetime end time (seconds)", "-1", float, m_flEndTime )
DMXELEMENT_UNPACK_FIELD( "input control point number", "0", int, m_nCPInput )
DMXELEMENT_UNPACK_FIELD( "input minimum","0 0 0", Vector, m_vInputMin )
DMXELEMENT_UNPACK_FIELD( "input maximum","0 0 0", Vector, m_vInputMax )
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "0", int, m_nFieldOutput, "intchoice particlefield_vector" )
DMXELEMENT_UNPACK_FIELD( "output minimum","0 0 0", Vector, m_vOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","0 0 0", Vector, m_vOutputMax )
DMXELEMENT_UNPACK_FIELD( "output is scalar of initial random range","0", bool, m_bScaleInitialRange )
DMXELEMENT_UNPACK_FIELD( "offset position","0", bool, m_bOffset )
DMXELEMENT_UNPACK_FIELD( "accelerate position","0", bool, m_bAccelerate )
DMXELEMENT_UNPACK_FIELD( "local space CP","-1", int, m_nLocalSpaceCP )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_RemapCPtoVector )
void C_INIT_RemapCPtoVector::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
Vector vecControlPoint;
pParticles->GetControlPointAtTime( m_nCPInput, pParticles->m_flCurTime, &vecControlPoint );
Vector vOutputMinLocal = m_vOutputMin;
Vector vOutputMaxLocal = m_vOutputMax;
if ( m_nLocalSpaceCP != -1 )
{
matrix3x4_t mat;
pParticles->GetControlPointTransformAtTime( m_nLocalSpaceCP, pParticles->m_flCurTime, &mat );
Vector vecTransformLocal = vec3_origin;
VectorRotate( vOutputMinLocal, mat, vecTransformLocal );
vOutputMinLocal = vecTransformLocal;
VectorRotate( vOutputMaxLocal, mat, vecTransformLocal );
vOutputMaxLocal = vecTransformLocal;
}
// FIXME: SSE-ize
for( ; nParticleCount--; start_p++ )
{
const float *pCreationTime = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
// using raw creation time to map to emitter lifespan
float flLifeTime = *pCreationTime;
// only use within start/end time frame
if ( ( ( flLifeTime < m_flStartTime ) || ( flLifeTime >= m_flEndTime ) ) && ( ( m_flStartTime != -1.0f) && ( m_flEndTime != -1.0f) ) )
continue;
float *pOutput = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
Vector vOutput;
vOutput.x = RemapValClamped( vecControlPoint.x, m_vInputMin.x, m_vInputMax.x, vOutputMinLocal.x, vOutputMaxLocal.x );
vOutput.y = RemapValClamped( vecControlPoint.y, m_vInputMin.y, m_vInputMax.y, vOutputMinLocal.y, vOutputMaxLocal.y );
vOutput.z = RemapValClamped( vecControlPoint.z, m_vInputMin.z, m_vInputMax.z, vOutputMinLocal.z, vOutputMaxLocal.z );
if ( m_bScaleInitialRange )
{
Vector vOrgValue;
SetVectorFromAttribute ( vOrgValue, pOutput );
vOutput *= vOrgValue;
}
if ( m_nFieldOutput == 6 )
{
pOutput[0] = max( 0.0f, min( vOutput.x, 1.0f) );
pOutput[4] = max( 0.0f, min( vOutput.y, 1.0f) );
pOutput[8] = max( 0.0f, min( vOutput.z, 1.0f) );
}
else
{
float *pXYZ_Prev = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
Vector vXYZPrev;
if ( m_bAccelerate )
{
if ( m_bOffset )
{
Vector vOrgValue;
SetVectorFromAttribute ( vOrgValue, pOutput );
SetVectorFromAttribute ( vXYZPrev, pXYZ_Prev );
vOutput += vOrgValue;
vXYZPrev += vOutput;
vOutput += vOutput * pParticles->m_flDt;
SetVectorAttribute ( pOutput, vOutput );
SetVectorAttribute ( pXYZ_Prev, vXYZPrev );
}
else
{
vOutput *= pParticles->m_flDt;
SetVectorAttribute ( pOutput, vOutput );
}
}
else
{
vXYZPrev = vOutput;
if ( m_bOffset )
{
Vector vOrgValue;
SetVectorFromAttribute ( vOrgValue, pOutput );
SetVectorFromAttribute ( vXYZPrev, pXYZ_Prev );
vOutput += vOrgValue;
vXYZPrev += vOutput;
}
SetVectorAttribute ( pOutput, vOutput );
SetVectorAttribute ( pXYZ_Prev, vXYZPrev );
}
}
}
}
class C_INIT_CreateFromParentParticles : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateFromParentParticles );
struct ParentParticlesContext_t
{
int m_nCurrentParentParticle;
};
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
virtual void InitializeContextData( CParticleCollection *pParticles, void *pContext ) const
{
ParentParticlesContext_t *pCtx = reinterpret_cast<ParentParticlesContext_t *>( pContext );
pCtx->m_nCurrentParentParticle = 0;
}
size_t GetRequiredContextBytes( void ) const
{
return sizeof( ParentParticlesContext_t );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
float m_flVelocityScale;
bool m_bRandomDistribution;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateFromParentParticles, "Position From Parent Particles", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateFromParentParticles )
DMXELEMENT_UNPACK_FIELD( "Inherited Velocity Scale","0", float, m_flVelocityScale )
DMXELEMENT_UNPACK_FIELD( "Random Parent Particle Distribution","0", bool, m_bRandomDistribution )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateFromParentParticles )
void C_INIT_CreateFromParentParticles::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
if ( !pParticles->m_pParent )
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
SetVectorAttribute( xyz, vec3_origin );
SetVectorAttribute( pxyz, vec3_origin );
}
return;
}
ParentParticlesContext_t *pCtx = reinterpret_cast<ParentParticlesContext_t *>( pContext );
int nActiveParticles = pParticles->m_pParent->m_nActiveParticles;
if ( nActiveParticles == 0 )
{
while( nParticleCount-- )
{
float *lifespan = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
*lifespan = 0.0f;
start_p++;
}
return;
}
nActiveParticles = max ( 0, nActiveParticles - 1 );
for( ; nParticleCount--; start_p++ )
{
if ( m_bRandomDistribution )
{
pCtx->m_nCurrentParentParticle = pParticles->RandomInt( 0, nActiveParticles );
}
else if ( pCtx->m_nCurrentParentParticle > nActiveParticles )
{
pCtx->m_nCurrentParentParticle = 0;
}
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
const float *ct = pParticles->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_CREATION_TIME, start_p );
const float *pParent_xyz = pParticles->m_pParent->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_XYZ, pCtx->m_nCurrentParentParticle );
const float *pParent_pxyz = pParticles->m_pParent->GetFloatAttributePtr( PARTICLE_ATTRIBUTE_PREV_XYZ, pCtx->m_nCurrentParentParticle );
Vector vecParentXYZ;
Vector vecParentPrevXYZ;
Vector vecScaledXYZ;
float flPrevTime = pParticles->m_flCurTime - pParticles->m_flDt;
float flSubFrame = RemapValClamped( *ct, flPrevTime, pParticles->m_flCurTime, 0, 1 );
vecParentXYZ.x = pParent_xyz[0];
vecParentXYZ.y = pParent_xyz[4];
vecParentXYZ.z = pParent_xyz[8];
vecParentPrevXYZ.x = pParent_pxyz[0];
vecParentPrevXYZ.y = pParent_pxyz[4];
vecParentPrevXYZ.z = pParent_pxyz[8];
VectorLerp( vecParentPrevXYZ, vecParentXYZ, flSubFrame, vecParentXYZ );
VectorLerp( vecParentXYZ, vecParentPrevXYZ, m_flVelocityScale, vecScaledXYZ );
SetVectorAttribute( pxyz, vecScaledXYZ );
SetVectorAttribute( xyz, vecParentXYZ );
pCtx->m_nCurrentParentParticle++;
}
}
//-----------------------------------------------------------------------------
// Distance to CP Initializer
//-----------------------------------------------------------------------------
class C_INIT_DistanceToCPInit : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_DistanceToCPInit );
uint32 GetWrittenAttributes( void ) const
{
return 1 << m_nFieldOutput;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK;
}
virtual uint64 GetReadControlPointMask() const
{
return 1ULL << m_nStartCP;
}
bool InitMultipleOverride ( void ) { return true; }
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nCollisionGroupNumber = g_pParticleSystemMgr->Query()->GetCollisionGroupFromName( m_CollisionGroupName );
m_nStartCP = max( 0, min( MAX_PARTICLE_CONTROL_POINTS-1, m_nStartCP ) );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
int m_nFieldOutput;
float m_flInputMin;
float m_flInputMax;
float m_flOutputMin;
float m_flOutputMax;
int m_nStartCP;
bool m_bLOS;
char m_CollisionGroupName[128];
int m_nCollisionGroupNumber;
float m_flMaxTraceLength;
float m_flLOSScale;
bool m_bScaleInitialRange;
bool m_bActiveRange;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_DistanceToCPInit, "Remap Initial Distance to Control Point to Scalar", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_DistanceToCPInit )
DMXELEMENT_UNPACK_FIELD( "distance minimum","0", float, m_flInputMin )
DMXELEMENT_UNPACK_FIELD( "distance maximum","128", float, m_flInputMax )
DMXELEMENT_UNPACK_FIELD_USERDATA( "output field", "3", int, m_nFieldOutput, "intchoice particlefield_scalar" )
DMXELEMENT_UNPACK_FIELD( "output minimum","0", float, m_flOutputMin )
DMXELEMENT_UNPACK_FIELD( "output maximum","1", float, m_flOutputMax )
DMXELEMENT_UNPACK_FIELD( "control point","0", int, m_nStartCP )
DMXELEMENT_UNPACK_FIELD( "ensure line of sight","0", bool, m_bLOS )
DMXELEMENT_UNPACK_FIELD_STRING( "LOS collision group", "NONE", m_CollisionGroupName )
DMXELEMENT_UNPACK_FIELD( "Maximum Trace Length", "-1", float, m_flMaxTraceLength )
DMXELEMENT_UNPACK_FIELD( "LOS Failure Scalar", "0", float, m_flLOSScale )
DMXELEMENT_UNPACK_FIELD( "output is scalar of initial random range","0", bool, m_bScaleInitialRange )
DMXELEMENT_UNPACK_FIELD( "only active within specified distance","0", bool, m_bActiveRange )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_DistanceToCPInit )
void C_INIT_DistanceToCPInit::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
// clamp the result to 0 and 1 if it's alpha
float flMin=m_flOutputMin;
float flMax=m_flOutputMax;
if ( ATTRIBUTES_WHICH_ARE_0_TO_1 & ( 1 << m_nFieldOutput ) )
{
flMin = clamp(m_flOutputMin, 0.0f, 1.0f );
flMax = clamp(m_flOutputMax, 0.0f, 1.0f );
}
Vector vecControlPoint1 = pParticles->GetControlPointAtCurrentTime( m_nStartCP );
// FIXME: SSE-ize
for( ; nParticleCount--; start_p++ )
{
Vector vecPosition2;
const float *pXYZ = pParticles->GetFloatAttributePtr(PARTICLE_ATTRIBUTE_XYZ, start_p );
vecPosition2 = Vector(pXYZ[0], pXYZ[4], pXYZ[8]);
Vector vecDelta = vecControlPoint1 - vecPosition2;
float flDistance = vecDelta.Length();
if ( m_bActiveRange && ( flDistance < m_flInputMin || flDistance > m_flInputMax ) )
{
continue;
}
if ( m_bLOS )
{
Vector vecEndPoint = vecPosition2;
if ( m_flMaxTraceLength != -1.0f && m_flMaxTraceLength < flDistance )
{
VectorNormalize(vecEndPoint);
vecEndPoint *= m_flMaxTraceLength;
vecEndPoint += vecControlPoint1;
}
CBaseTrace tr;
g_pParticleSystemMgr->Query()->TraceLine( vecControlPoint1, vecEndPoint, MASK_OPAQUE_AND_NPCS, NULL , m_nCollisionGroupNumber, &tr );
if (tr.fraction != 1.0f)
{
flDistance *= tr.fraction * m_flLOSScale;
}
}
float flOutput = RemapValClamped( flDistance, m_flInputMin, m_flInputMax, flMin, flMax );
if ( m_bScaleInitialRange )
{
const float *pInitialOutput = pParticles->GetFloatAttributePtr( m_nFieldOutput, start_p );
flOutput = *pInitialOutput * flOutput;
}
float *pOutput = pParticles->GetFloatAttributePtrForWrite( m_nFieldOutput, start_p );
*pOutput = flOutput;
}
}
class C_INIT_LifespanFromVelocity : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_LifespanFromVelocity );
Vector m_vecComponentScale;
float m_flTraceOffset;
float m_flMaxTraceLength;
float m_flTraceTolerance;
int m_nCollisionGroupNumber;
int m_nMaxPlanes;
int m_nAllowedPlanes;
char m_CollisionGroupName[128];
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
uint32 GetReadAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_CREATION_TIME_MASK;
}
void InitializeContextData( CParticleCollection *pParticles,
void *pContext ) const
{
}
size_t GetRequiredContextBytes( ) const
{
return sizeof( CWorldCollideContextData );
}
bool InitMultipleOverride ( void ) { return true; }
void InitParams( CParticleSystemDefinition *pDef, CDmxElement *pElement )
{
m_nCollisionGroupNumber = g_pParticleSystemMgr->Query()->GetCollisionGroupFromName( m_CollisionGroupName );
m_nAllowedPlanes = ( min ( MAX_WORLD_PLANAR_CONSTRAINTS, m_nMaxPlanes ) - 1 );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
virtual void InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_LifespanFromVelocity, "Lifetime from Time to Impact", OPERATOR_GENERIC );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_LifespanFromVelocity )
DMXELEMENT_UNPACK_FIELD_STRING( "trace collision group", "NONE", m_CollisionGroupName )
DMXELEMENT_UNPACK_FIELD( "maximum trace length", "1024", float, m_flMaxTraceLength )
DMXELEMENT_UNPACK_FIELD( "trace offset", "0", float, m_flTraceOffset )
DMXELEMENT_UNPACK_FIELD( "trace recycle tolerance", "64", float, m_flTraceTolerance )
DMXELEMENT_UNPACK_FIELD( "maximum points to cache", "16", int, m_nMaxPlanes )
DMXELEMENT_UNPACK_FIELD( "bias distance", "1 1 1", Vector, m_vecComponentScale )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_LifespanFromVelocity )
void C_INIT_LifespanFromVelocity::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
CWorldCollideContextData **ppCtx;
if ( pParticles->m_pParent )
ppCtx = &( pParticles->m_pParent->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
else
ppCtx = &( pParticles->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
CWorldCollideContextData *pCtx = NULL;
if ( ! *ppCtx )
{
*ppCtx = new CWorldCollideContextData;
(*ppCtx)->m_nActivePlanes = 0;
(*ppCtx)->m_nActivePlanes = 0;
(*ppCtx)->m_nNumFixedPlanes = 0;
}
pCtx = *ppCtx;
float flTol = m_flTraceTolerance * m_flTraceTolerance;
//Trace length takes the max trace and subtracts the offset to get the actual total.
float flTotalTraceDist = m_flMaxTraceLength - m_flTraceOffset;
//Offset percentage to account for if we've hit something within the offset (but not spawn) area
float flOffsetPct = m_flMaxTraceLength / ( flTotalTraceDist + FLT_EPSILON );
FourVectors v4ComponentScale;
v4ComponentScale.DuplicateVector( m_vecComponentScale );
while( nParticleCount-- )
{
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pPrevXYZ = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
float *dtime = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
Vector vecXYZ( pxyz[0], pxyz[4], pxyz[8] );
Vector vecXYZ_Prev( pPrevXYZ[0], pPrevXYZ[4], pPrevXYZ[8] );
//Calculate velocity and account for frame delta time
Vector vDelta = vecXYZ - vecXYZ_Prev;
float flVelocity = VectorLength( vDelta );
flVelocity /= pParticles->m_flPreviousDt;
fltx4 fl4TraceOffset = ReplicateX4( m_flTraceOffset );
//Normalize the delta and get the offset to use from the normalized delta times the offset
VectorNormalize( vDelta );
Vector vecOffset = vDelta * m_flTraceOffset;
Vector vecStartPnt = vecXYZ + vecOffset;
Vector vecEndPnt = ( vDelta * flTotalTraceDist ) + vecStartPnt;
// Use SIMD section to interface with plane cache, even though we're not SIMD here
// Test versus existing Data
FourVectors fvStartPnt;
fvStartPnt.DuplicateVector( vecStartPnt );
FourVectors fvEndPnt;
fvEndPnt.DuplicateVector( vecEndPnt );
FourVectors v4PointOnPlane;
FourVectors v4PlaneNormal;
FourVectors v4Delta;
fltx4 fl4ClosestDist = Four_FLT_MAX;
for( int i = 0 ; i < pCtx->m_nActivePlanes; i++ )
{
if ( pCtx->m_bPlaneActive[i] )
{
fltx4 fl4TrialDistance = MaxSIMD(
fvStartPnt.DistSqrToLineSegment( pCtx->m_TraceStartPnt[i], pCtx->m_TraceEndPnt[i] ),
fvEndPnt.DistSqrToLineSegment( pCtx->m_TraceStartPnt[i], pCtx->m_TraceEndPnt[i] ) );
// If the trial distance is closer than the existing closest, replace.
if ( !IsAllGreaterThan( fl4TrialDistance, fl4ClosestDist ) )
{
fl4ClosestDist = fl4TrialDistance;
v4PointOnPlane = pCtx->m_PointOnPlane[i];
}
}
}
fl4ClosestDist = fabs( fl4ClosestDist );
// If we're outside the tolerance range, do a new trace and store it.
if ( IsAllGreaterThan( fl4ClosestDist, ReplicateX4( flTol ) ) )
{
//replace this with fast raycaster when available
CBaseTrace tr;
tr.plane.normal = vec3_invalid;
g_pParticleSystemMgr->Query()->TraceLine( vecStartPnt, vecEndPnt, CONTENTS_SOLID, NULL , m_nCollisionGroupNumber, &tr );
//Set the lifespan to 0 if we start solid, our trace distance is 0, or we hit within the offset area
if ( ( tr.fraction < ( 1 - flOffsetPct ) ) || tr.startsolid || flTotalTraceDist == 0.0f )
{
*dtime = 0.0f;
fl4TraceOffset = ReplicateX4( 0.0f );
fvStartPnt.DuplicateVector( vec3_origin );
v4PointOnPlane.DuplicateVector( vec3_origin );
}
else
{
int nIndex = pCtx->m_nNumFixedPlanes;
Vector vPointOnPlane = vecStartPnt + ( tr.fraction * ( vecEndPnt - vecStartPnt ) ) ;
pCtx->m_bPlaneActive[nIndex] = true;
pCtx->m_PointOnPlane[nIndex].DuplicateVector( vPointOnPlane );
pCtx->m_PlaneNormal[nIndex].DuplicateVector( tr.plane.normal );
pCtx->m_TraceStartPnt[nIndex].DuplicateVector( vecStartPnt );
pCtx->m_TraceEndPnt[nIndex].DuplicateVector( vecEndPnt );
fvStartPnt.DuplicateVector( vecStartPnt );
v4PointOnPlane.DuplicateVector( vPointOnPlane );
pCtx->m_nNumFixedPlanes = pCtx->m_nNumFixedPlanes + 1;
if ( pCtx->m_nNumFixedPlanes > m_nAllowedPlanes )
pCtx->m_nNumFixedPlanes = 0;
pCtx->m_nActivePlanes = min( m_nAllowedPlanes, pCtx->m_nActivePlanes + 1 );
}
}
fvStartPnt -= v4PointOnPlane;
//Scale components to remove undesired axis
fvStartPnt *= v4ComponentScale;
//Find the length of the trace
//Need to use the adjusted value of the trace length and collision point to account for the offset
fltx4 fl4Dist = AddSIMD ( fvStartPnt.length(), fl4TraceOffset );
flVelocity += FLT_EPSILON;
//Divide by Velocity to get Lifespan
*dtime = SubFloat( fl4Dist, 0) / flVelocity;
}
}
void C_INIT_LifespanFromVelocity::InitNewParticlesBlock( CParticleCollection *pParticles,
int start_block, int n_blocks, int nAttributeWriteMask,
void *pContext ) const
{
CWorldCollideContextData **ppCtx;
if ( pParticles->m_pParent )
ppCtx = &( pParticles->m_pParent->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
else
ppCtx = &( pParticles->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
CWorldCollideContextData *pCtx = NULL;
if ( ! *ppCtx )
{
*ppCtx = new CWorldCollideContextData;
(*ppCtx)->m_nActivePlanes = 0;
(*ppCtx)->m_nActivePlanes = 0;
(*ppCtx)->m_nNumFixedPlanes = 0;
}
pCtx = *ppCtx;
float flTol = m_flTraceTolerance * m_flTraceTolerance;
size_t attr_stride;
FourVectors *pXYZ = pParticles->Get4VAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, &attr_stride );
pXYZ += attr_stride * start_block;
FourVectors *pPrev_XYZ = pParticles->Get4VAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, &attr_stride );
pPrev_XYZ += attr_stride * start_block;
fltx4 *pLifespan = pParticles->GetM128AttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, &attr_stride );
pLifespan += attr_stride * start_block;
//Trace length takes the max trace and subtracts the offset to get the actual total.
float flTotalTraceDist = m_flMaxTraceLength - m_flTraceOffset;
fltx4 fl4TotalTraceDist = ReplicateX4( flTotalTraceDist );
//Offset percentage to account for if we've hit something within the offset (but not spawn) area
float flOffsetPct = m_flMaxTraceLength / ( flTotalTraceDist + FLT_EPSILON );
fltx4 fl4PrevDT = ReplicateX4( 1.0f / pParticles->m_flPreviousDt );
FourVectors v4ComponentScale;
v4ComponentScale.DuplicateVector( m_vecComponentScale );
while( n_blocks-- )
{
// Determine Velocity
FourVectors fvDelta = *pXYZ;
fvDelta -= *pPrev_XYZ;
fltx4 fl4Velocity = fvDelta.length();
fl4Velocity = MulSIMD ( fl4Velocity, fl4PrevDT );
fltx4 fl4TraceOffset = ReplicateX4( m_flTraceOffset );
//Normalize the delta and get the offset to use from the normalized delta times the offset
FourVectors fvDeltaNormalized = fvDelta;
fvDeltaNormalized.VectorNormalizeFast();
FourVectors fvOffset = fvDeltaNormalized;
fvOffset *= m_flTraceOffset;
//Start/Endpoints for our traces
FourVectors fvStartPnt = *pXYZ;
fvStartPnt += fvOffset;
FourVectors fvEndPnt = fvDeltaNormalized;
fvEndPnt *= fl4TotalTraceDist;
fvEndPnt += fvStartPnt;
// Test versus existing Data
FourVectors v4PointOnPlane;
FourVectors v4PlaneNormal;
fltx4 fl4ClosestDist = Four_FLT_MAX;
for( int i = 0 ; i < pCtx->m_nActivePlanes; i++ )
{
if ( pCtx->m_bPlaneActive[i] )
{
fltx4 fl4TrialDistance = MaxSIMD(
fvStartPnt.DistSqrToLineSegment( pCtx->m_TraceStartPnt[i], pCtx->m_TraceEndPnt[i] ),
fvEndPnt.DistSqrToLineSegment( pCtx->m_TraceStartPnt[i], pCtx->m_TraceEndPnt[i] ) );
fltx4 fl4Nearestmask = CmpLeSIMD( fl4TrialDistance, fl4ClosestDist );
fl4ClosestDist = MaskedAssign( fl4ClosestDist, fl4TrialDistance, fl4Nearestmask );
v4PointOnPlane.x = MaskedAssign( fl4Nearestmask, pCtx->m_PointOnPlane[i].x, v4PointOnPlane.x );
v4PointOnPlane.y = MaskedAssign( fl4Nearestmask, pCtx->m_PointOnPlane[i].y, v4PointOnPlane.y );
v4PointOnPlane.z = MaskedAssign( fl4Nearestmask, pCtx->m_PointOnPlane[i].z, v4PointOnPlane.z );
}
}
// If we're outside the tolerance range, do a new trace and store it.
fltx4 fl4OutOfRange = CmpGtSIMD( fl4ClosestDist, ReplicateX4( flTol ) );
if ( IsAnyNegative( fl4OutOfRange ) )
{
int nMask = TestSignSIMD( fl4OutOfRange );
for(int i=0; i < 4; i++ )
{
if ( nMask & ( 1 << i ) )
{
Vector start = fvStartPnt.Vec( i );
Vector end = fvEndPnt.Vec( i );
//replace this with fast raycaster when available
CBaseTrace tr;
tr.plane.normal = vec3_invalid;
g_pParticleSystemMgr->Query()->TraceLine( start, end, CONTENTS_SOLID, NULL , m_nCollisionGroupNumber, &tr );
//Set the lifespan to 0 if we start solid, our trace distance is 0, or we hit within the offset area
if ( ( tr.fraction < ( 1 - flOffsetPct ) ) || tr.startsolid || flTotalTraceDist == 0.0f )
{
SubFloat( fvStartPnt.x, i ) = 0.0f;
SubFloat( fvStartPnt.y, i ) = 0.0f;
SubFloat( fvStartPnt.z, i ) = 0.0f;
SubFloat( v4PointOnPlane.x, i ) = 0.0f;
SubFloat( v4PointOnPlane.y, i ) = 0.0f;
SubFloat( v4PointOnPlane.z, i ) = 0.0f;
SubFloat( fl4TraceOffset, i ) = 0.0f;
}
else
{
int nIndex = pCtx->m_nNumFixedPlanes;
Vector vPointOnPlane = start + ( tr.fraction * ( end - start ) ) ;
SubFloat( v4PointOnPlane.x, i ) = vPointOnPlane.x;
SubFloat( v4PointOnPlane.y, i ) = vPointOnPlane.y;
SubFloat( v4PointOnPlane.z, i ) = vPointOnPlane.z;
pCtx->m_bPlaneActive[nIndex] = true;
pCtx->m_PointOnPlane[nIndex].DuplicateVector( vPointOnPlane );
pCtx->m_PlaneNormal[nIndex].DuplicateVector( tr.plane.normal );
pCtx->m_TraceStartPnt[nIndex].DuplicateVector( start );
pCtx->m_TraceEndPnt[nIndex].DuplicateVector( end );
pCtx->m_nNumFixedPlanes = pCtx->m_nNumFixedPlanes + 1;
if ( pCtx->m_nNumFixedPlanes > m_nAllowedPlanes )
pCtx->m_nNumFixedPlanes = 0;
pCtx->m_nActivePlanes = min( m_nAllowedPlanes, pCtx->m_nActivePlanes + 1 );
}
}
}
}
//Find the length of the trace
fvStartPnt -= v4PointOnPlane;
fvStartPnt *= v4ComponentScale;
//Need to use the adjusted value of the trace length and collision point to account for the offset
fltx4 fl4Dist = AddSIMD ( fvStartPnt.length(), fl4TraceOffset );
fl4Velocity = AddSIMD( fl4Velocity, Four_Epsilons );
//Divide by Velocity to get Lifespan
*pLifespan = DivSIMD( fl4Dist, fl4Velocity );
pXYZ += attr_stride;
pPrev_XYZ += attr_stride;
pLifespan += attr_stride;
}
}
class C_INIT_CreateFromPlaneCache : public CParticleOperatorInstance
{
DECLARE_PARTICLE_OPERATOR( C_INIT_CreateFromPlaneCache );
uint32 GetWrittenAttributes( void ) const
{
return PARTICLE_ATTRIBUTE_XYZ_MASK | PARTICLE_ATTRIBUTE_PREV_XYZ_MASK | PARTICLE_ATTRIBUTE_LIFE_DURATION_MASK;
}
uint32 GetReadAttributes( void ) const
{
return 0;
}
size_t GetRequiredContextBytes( ) const
{
return sizeof( CWorldCollideContextData );
}
void InitNewParticlesScalar( CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask,
void *pContext) const;
};
DEFINE_PARTICLE_OPERATOR( C_INIT_CreateFromPlaneCache, "Position from Parent Cache", OPERATOR_PI_POSITION );
BEGIN_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateFromPlaneCache )
END_PARTICLE_OPERATOR_UNPACK( C_INIT_CreateFromPlaneCache )
void C_INIT_CreateFromPlaneCache::InitNewParticlesScalar(
CParticleCollection *pParticles, int start_p,
int nParticleCount, int nAttributeWriteMask, void *pContext ) const
{
if ( !pParticles->m_pParent )
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
SetVectorAttribute( xyz, vec3_origin );
SetVectorAttribute( pxyz, vec3_origin );
}
return;
}
CWorldCollideContextData **ppCtx;
if ( pParticles->m_pParent )
ppCtx = &( pParticles->m_pParent->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
else
ppCtx = &( pParticles->m_pCollisionCacheData[COLLISION_MODE_INITIAL_TRACE_DOWN] );
CWorldCollideContextData *pCtx = NULL;
if ( ! *ppCtx )
{
*ppCtx = new CWorldCollideContextData;
(*ppCtx)->m_nActivePlanes = 0;
(*ppCtx)->m_nNumFixedPlanes = 0;
FourVectors fvEmpty;
fvEmpty.DuplicateVector( vec3_origin );
(*ppCtx)->m_PointOnPlane[0] = fvEmpty;
}
pCtx = *ppCtx;
if ( pCtx->m_nActivePlanes > 0 )
{
for( ; nParticleCount--; start_p++ )
{
int nIndex = pParticles->RandomInt( 0, pCtx->m_nActivePlanes - 1 );
if ( pCtx->m_PlaneNormal[nIndex].Vec( 0 ) == vec3_invalid )
{
float *plifespan = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_LIFE_DURATION, start_p );
*plifespan = 0.0f;
}
else
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
FourVectors fvPoint = pCtx->m_PointOnPlane[nIndex];
Vector vPoint = fvPoint.Vec( 0 );
SetVectorAttribute( xyz, vPoint );
SetVectorAttribute( pxyz, vPoint );
}
}
}
else
{
for( ; nParticleCount--; start_p++ )
{
float *xyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_XYZ, start_p );
float *pxyz = pParticles->GetFloatAttributePtrForWrite( PARTICLE_ATTRIBUTE_PREV_XYZ, start_p );
SetVectorAttribute( xyz, vec3_origin );
SetVectorAttribute( pxyz, vec3_origin );
}
}
}
//
//
//
//
//-----------------------------------------------------------------------------
// Purpose: Add all operators to be considered active, here
//-----------------------------------------------------------------------------
void AddBuiltInParticleInitializers( void )
{
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateAlongPath );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_MoveBetweenPoints );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateWithinSphere );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_VelocityRandom );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateOnModel );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateWithinBox );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomRotationSpeed );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomLifeTime );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomAlpha );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomRadius );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomRotation );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomYaw );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomColor );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomTrailLength );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomSequence );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_PositionOffset );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_PositionWarp );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreationNoise );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_InitialVelocityNoise );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RemapScalar );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_InheritVelocity );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_AgeNoise );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_SequenceLifeTime );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateInHierarchy );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RemapScalarToVector );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateSequentialPath );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_InitialRepulsionVelocity );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomYawFlip );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RandomSecondSequence );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RemapCPtoScalar );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_RemapCPtoVector );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateFromParentParticles );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_DistanceToCPInit );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_LifespanFromVelocity );
REGISTER_PARTICLE_OPERATOR( FUNCTION_INITIALIZER, C_INIT_CreateFromPlaneCache );
}