d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
19 Commits
25 Branches
6 Tags
221 MiB
 
 
 
 
 
 
Tree: b7cd3625c8
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'b7cd3625c8'
${ noResults }
source-engine/materialsystem/shaderlib/BaseShader.cpp

1791 lines
53 KiB
Raw Blame History

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=====================================================================================//
#include "shaderlib/BaseShader.h"
#include "shaderlib/ShaderDLL.h"
#include "tier0/dbg.h"
#include "shaderDLL_Global.h"
#include "IShaderSystem.h"
#include "materialsystem/imaterial.h"
#include "materialsystem/itexture.h"
#include "materialsystem/ishaderapi.h"
#include "materialsystem/materialsystem_config.h"
#include "shaderlib/cshader.h"
#include "mathlib/vmatrix.h"
#include "tier1/strtools.h"
#include "convar.h"
#include "tier0/vprof.h"
// NOTE: This must be the last include file in a .cpp file!
#include "tier0/memdbgon.h"
//-----------------------------------------------------------------------------
// Globals
//-----------------------------------------------------------------------------
const char *CBaseShader::s_pTextureGroupName = NULL;
IMaterialVar **CBaseShader::s_ppParams;
IShaderShadow *CBaseShader::s_pShaderShadow;
IShaderDynamicAPI *CBaseShader::s_pShaderAPI;
IShaderInit *CBaseShader::s_pShaderInit;
int CBaseShader::s_nModulationFlags;
CMeshBuilder *CBaseShader::s_pMeshBuilder;
static ConVar mat_fullbright( "mat_fullbright","0", FCVAR_CHEAT );
bool g_shaderConfigDumpEnable = false; //true; //DO NOT CHECK IN ENABLED FIXME
//-----------------------------------------------------------------------------
// constructor
//-----------------------------------------------------------------------------
CBaseShader::CBaseShader()
{
GetShaderDLL()->InsertShader( this );
}
//-----------------------------------------------------------------------------
// Shader parameter info
//-----------------------------------------------------------------------------
// Look in BaseShader.h for the enumeration for these.
// Update there if you update here.
static ShaderParamInfo_t s_StandardParams[NUM_SHADER_MATERIAL_VARS] =
{
{ "$flags", "flags", SHADER_PARAM_TYPE_INTEGER, "0", SHADER_PARAM_NOT_EDITABLE },
{ "$flags_defined", "flags_defined", SHADER_PARAM_TYPE_INTEGER, "0", SHADER_PARAM_NOT_EDITABLE },
{ "$flags2", "flags2", SHADER_PARAM_TYPE_INTEGER, "0", SHADER_PARAM_NOT_EDITABLE },
{ "$flags_defined2", "flags2_defined", SHADER_PARAM_TYPE_INTEGER, "0", SHADER_PARAM_NOT_EDITABLE },
{ "$color", "color", SHADER_PARAM_TYPE_COLOR, "[1 1 1]", 0 },
{ "$alpha", "alpha", SHADER_PARAM_TYPE_FLOAT, "1.0", 0 },
{ "$basetexture", "Base Texture with lighting built in", SHADER_PARAM_TYPE_TEXTURE, "shadertest/BaseTexture", 0 },
{ "$frame", "Animation Frame", SHADER_PARAM_TYPE_INTEGER, "0", 0 },
{ "$basetexturetransform", "Base Texture Texcoord Transform",SHADER_PARAM_TYPE_MATRIX, "center .5 .5 scale 1 1 rotate 0 translate 0 0", 0 },
{ "$flashlighttexture", "flashlight spotlight shape texture", SHADER_PARAM_TYPE_TEXTURE, "effects/flashlight001", SHADER_PARAM_NOT_EDITABLE },
{ "$flashlighttextureframe", "Animation Frame for $flashlight", SHADER_PARAM_TYPE_INTEGER, "0", SHADER_PARAM_NOT_EDITABLE },
{ "$color2", "color2", SHADER_PARAM_TYPE_COLOR, "[1 1 1]", 0 },
{ "$srgbtint", "tint value to be applied when running on new-style srgb parts", SHADER_PARAM_TYPE_COLOR, "[1 1 1]", 0 },
};
//-----------------------------------------------------------------------------
// Gets the standard shader parameter names
// FIXME: Turn this into one function?
//-----------------------------------------------------------------------------
int CBaseShader::GetNumParams( ) const
{
return NUM_SHADER_MATERIAL_VARS;
}
char const* CBaseShader::GetParamName( int nParamIndex ) const
{
Assert( nParamIndex < NUM_SHADER_MATERIAL_VARS );
return s_StandardParams[nParamIndex].m_pName;
}
const char *CBaseShader::GetParamHelp( int nParamIndex ) const
{
Assert( nParamIndex < NUM_SHADER_MATERIAL_VARS );
return s_StandardParams[nParamIndex].m_pHelp;
}
ShaderParamType_t CBaseShader::GetParamType( int nParamIndex ) const
{
Assert( nParamIndex < NUM_SHADER_MATERIAL_VARS );
return s_StandardParams[nParamIndex].m_Type;
}
const char *CBaseShader::GetParamDefault( int nParamIndex ) const
{
Assert( nParamIndex < NUM_SHADER_MATERIAL_VARS );
return s_StandardParams[nParamIndex].m_pDefaultValue;
}
int CBaseShader::GetParamFlags( int nParamIndex ) const
{
Assert( nParamIndex < NUM_SHADER_MATERIAL_VARS );
return s_StandardParams[nParamIndex].m_nFlags;
}
//-----------------------------------------------------------------------------
// Necessary to snag ahold of some important data for the helper methods
//-----------------------------------------------------------------------------
void CBaseShader::InitShaderParams( IMaterialVar** ppParams, const char *pMaterialName )
{
// Re-entrancy check
Assert( !s_ppParams );
s_ppParams = ppParams;
OnInitShaderParams( ppParams, pMaterialName );
s_ppParams = NULL;
}
void CBaseShader::InitShaderInstance( IMaterialVar** ppParams, IShaderInit *pShaderInit, const char *pMaterialName, const char *pTextureGroupName )
{
// Re-entrancy check
Assert( !s_ppParams );
s_ppParams = ppParams;
s_pShaderInit = pShaderInit;
s_pTextureGroupName = pTextureGroupName;
OnInitShaderInstance( ppParams, pShaderInit, pMaterialName );
s_pTextureGroupName = NULL;
s_ppParams = NULL;
s_pShaderInit = NULL;
}
void CBaseShader::DrawElements( IMaterialVar **ppParams, int nModulationFlags,
IShaderShadow* pShaderShadow, IShaderDynamicAPI* pShaderAPI, VertexCompressionType_t vertexCompression, CBasePerMaterialContextData **pContextDataPtr )
{
VPROF("CBaseShader::DrawElements");
// Re-entrancy check
Assert( !s_ppParams );
s_ppParams = ppParams;
s_pShaderAPI = pShaderAPI;
s_pShaderShadow = pShaderShadow;
s_nModulationFlags = nModulationFlags;
s_pMeshBuilder = pShaderAPI ? pShaderAPI->GetVertexModifyBuilder() : NULL;
if ( IsSnapshotting() )
{
// Set up the shadow state
SetInitialShadowState( );
}
OnDrawElements( ppParams, pShaderShadow, pShaderAPI, vertexCompression, pContextDataPtr );
s_nModulationFlags = 0;
s_ppParams = NULL;
s_pShaderAPI = NULL;
s_pShaderShadow = NULL;
s_pMeshBuilder = NULL;
}
//-----------------------------------------------------------------------------
// Sets the default shadow state
//-----------------------------------------------------------------------------
void CBaseShader::SetInitialShadowState( )
{
// Set the default state
s_pShaderShadow->SetDefaultState();
// Init the standard states...
int flags = s_ppParams[FLAGS]->GetIntValue();
if (flags & MATERIAL_VAR_IGNOREZ)
{
s_pShaderShadow->EnableDepthTest( false );
s_pShaderShadow->EnableDepthWrites( false );
}
if (flags & MATERIAL_VAR_DECAL)
{
s_pShaderShadow->EnablePolyOffset( SHADER_POLYOFFSET_DECAL );
s_pShaderShadow->EnableDepthWrites( false );
}
if (flags & MATERIAL_VAR_NOCULL)
{
s_pShaderShadow->EnableCulling( false );
}
if (flags & MATERIAL_VAR_ZNEARER)
{
s_pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_NEARER );
}
if (flags & MATERIAL_VAR_WIREFRAME)
{
s_pShaderShadow->PolyMode( SHADER_POLYMODEFACE_FRONT_AND_BACK, SHADER_POLYMODE_LINE );
}
// Set alpha to coverage
if (flags & MATERIAL_VAR_ALLOWALPHATOCOVERAGE)
{
// Force the bit on and then check against alpha blend and test states in CShaderShadowDX8::ComputeAggregateShadowState()
s_pShaderShadow->EnableAlphaToCoverage( true );
}
}
//-----------------------------------------------------------------------------
// Draws a snapshot
//-----------------------------------------------------------------------------
void CBaseShader::Draw( bool bMakeActualDrawCall )
{
if ( IsSnapshotting() )
{
// Turn off transparency if we're asked to....
if (g_pConfig->bNoTransparency &&
((s_ppParams[FLAGS]->GetIntValue() & MATERIAL_VAR_NO_DEBUG_OVERRIDE) == 0))
{
s_pShaderShadow->EnableDepthWrites( true );
s_pShaderShadow->EnableBlending( false );
}
GetShaderSystem()->TakeSnapshot();
}
else
{
GetShaderSystem()->DrawSnapshot( bMakeActualDrawCall );
}
}
//-----------------------------------------------------------------------------
// Finds a particular parameter (works because the lowest parameters match the shader)
//-----------------------------------------------------------------------------
int CBaseShader::FindParamIndex( const char *pName ) const
{
int numParams = GetNumParams();
for( int i = 0; i < numParams; i++ )
{
if( Q_strnicmp( GetParamName( i ), pName, 64 ) == 0 )
{
return i;
}
}
return -1;
}
//-----------------------------------------------------------------------------
// Are we using graphics?
//-----------------------------------------------------------------------------
bool CBaseShader::IsUsingGraphics()
{
return GetShaderSystem()->IsUsingGraphics();
}
//-----------------------------------------------------------------------------
// Are we using graphics?
//-----------------------------------------------------------------------------
bool CBaseShader::CanUseEditorMaterials()
{
return GetShaderSystem()->CanUseEditorMaterials();
}
//-----------------------------------------------------------------------------
// Gets the builder...
//-----------------------------------------------------------------------------
CMeshBuilder* CBaseShader::MeshBuilder()
{
return s_pMeshBuilder;
}
//-----------------------------------------------------------------------------
// Loads a texture
//-----------------------------------------------------------------------------
void CBaseShader::LoadTexture( int nTextureVar, int nAdditionalCreationFlags /* = 0 */ )
{
if ((!s_ppParams) || (nTextureVar == -1))
return;
IMaterialVar* pNameVar = s_ppParams[nTextureVar];
if( pNameVar && pNameVar->IsDefined() )
{
s_pShaderInit->LoadTexture( pNameVar, s_pTextureGroupName, nAdditionalCreationFlags );
}
}
//-----------------------------------------------------------------------------
// Loads a bumpmap
//-----------------------------------------------------------------------------
void CBaseShader::LoadBumpMap( int nTextureVar )
{
if ((!s_ppParams) || (nTextureVar == -1))
return;
IMaterialVar* pNameVar = s_ppParams[nTextureVar];
if( pNameVar && pNameVar->IsDefined() )
{
s_pShaderInit->LoadBumpMap( pNameVar, s_pTextureGroupName );
}
}
//-----------------------------------------------------------------------------
// Loads a cubemap
//-----------------------------------------------------------------------------
void CBaseShader::LoadCubeMap( int nTextureVar, int nAdditionalCreationFlags /* = 0 */ )
{
if ((!s_ppParams) || (nTextureVar == -1))
return;
IMaterialVar* pNameVar = s_ppParams[nTextureVar];
if( pNameVar && pNameVar->IsDefined() )
{
s_pShaderInit->LoadCubeMap( s_ppParams, pNameVar, nAdditionalCreationFlags );
}
}
ShaderAPITextureHandle_t CBaseShader::GetShaderAPITextureBindHandle( int nTextureVar, int nFrameVar, int nTextureChannel )
{
// Assert( !IsSnapshotting() );
Assert( nTextureVar != -1 );
Assert ( s_ppParams );
IMaterialVar* pTextureVar = s_ppParams[nTextureVar];
IMaterialVar* pFrameVar = (nFrameVar != -1) ? s_ppParams[nFrameVar] : NULL;
int nFrame = pFrameVar ? pFrameVar->GetIntValue() : 0;
return GetShaderSystem()->GetShaderAPITextureBindHandle( pTextureVar->GetTextureValue(), nFrame, nTextureChannel );
}
//-----------------------------------------------------------------------------
// Four different flavors of BindTexture(), handling the two-sampler
// case as well as ITexture* versus textureVar forms
//-----------------------------------------------------------------------------
void CBaseShader::BindTexture( Sampler_t sampler1, int nTextureVar, int nFrameVar /* = -1 */ )
{
BindTexture( sampler1, (Sampler_t) -1, nTextureVar, nFrameVar );
}
void CBaseShader::BindTexture( Sampler_t sampler1, Sampler_t sampler2, int nTextureVar, int nFrameVar /* = -1 */ )
{
Assert( !IsSnapshotting() );
Assert( nTextureVar != -1 );
Assert ( s_ppParams );
IMaterialVar* pTextureVar = s_ppParams[nTextureVar];
IMaterialVar* pFrameVar = (nFrameVar != -1) ? s_ppParams[nFrameVar] : NULL;
if (pTextureVar)
{
int nFrame = pFrameVar ? pFrameVar->GetIntValue() : 0;
if ( sampler2 == Sampler_t(-1) )
{
GetShaderSystem()->BindTexture( sampler1, pTextureVar->GetTextureValue(), nFrame );
}
else
{
GetShaderSystem()->BindTexture( sampler1, sampler2, pTextureVar->GetTextureValue(), nFrame );
}
}
}
void CBaseShader::BindTexture( Sampler_t sampler1, ITexture *pTexture, int nFrame /* = 0 */ )
{
BindTexture( sampler1, (Sampler_t) -1, pTexture, nFrame );
}
void CBaseShader::BindTexture( Sampler_t sampler1, Sampler_t sampler2, ITexture *pTexture, int nFrame /* = 0 */ )
{
Assert( !IsSnapshotting() );
if ( sampler2 == Sampler_t(-1 ) )
{
GetShaderSystem()->BindTexture( sampler1, pTexture, nFrame );
}
else
{
GetShaderSystem()->BindTexture( sampler1, sampler2, pTexture, nFrame );
}
}
void CBaseShader::GetTextureDimensions( float* pOutWidth, float* pOutHeight, int nTextureVar )
{
Assert( pOutWidth && pOutHeight ); // Outputs must be provided.
Assert( nTextureVar != -1 );
IMaterialVar* pTextureVar = s_ppParams[nTextureVar];
if (pTextureVar && pTextureVar->GetTextureValue())
{
*pOutWidth = (float) (pTextureVar->GetTextureValue()->GetActualWidth());
*pOutHeight = (float) (pTextureVar->GetTextureValue()->GetActualHeight());
}
}
//-----------------------------------------------------------------------------
// Does the texture store translucency in its alpha channel?
//-----------------------------------------------------------------------------
bool CBaseShader::TextureIsTranslucent( int textureVar, bool isBaseTexture )
{
if (textureVar < 0)
return false;
IMaterialVar** params = s_ppParams;
if (params[textureVar]->GetType() == MATERIAL_VAR_TYPE_TEXTURE)
{
if (!isBaseTexture)
{
return params[textureVar]->GetTextureValue()->IsTranslucent();
}
else
{
// Override translucency settings if this flag is set.
if (IS_FLAG_SET(MATERIAL_VAR_OPAQUETEXTURE))
return false;
if ( (CurrentMaterialVarFlags() & (MATERIAL_VAR_SELFILLUM | MATERIAL_VAR_BASEALPHAENVMAPMASK)) == 0)
{
if ((CurrentMaterialVarFlags() & MATERIAL_VAR_TRANSLUCENT) ||
(CurrentMaterialVarFlags() & MATERIAL_VAR_ALPHATEST))
{
return params[textureVar]->GetTextureValue()->IsTranslucent();
}
}
}
}
return false;
}
//-----------------------------------------------------------------------------
//
// Helper methods for color modulation
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Are we alpha or color modulating?
//-----------------------------------------------------------------------------
bool CBaseShader::IsAlphaModulating()
{
return (s_nModulationFlags & SHADER_USING_ALPHA_MODULATION) != 0;
}
bool CBaseShader::IsColorModulating()
{
return (s_nModulationFlags & SHADER_USING_COLOR_MODULATION) != 0;
}
void CBaseShader::GetColorParameter( IMaterialVar **params, float *pColorOut ) const
{
float flColor2[3];
params[COLOR]->GetVecValue( pColorOut, 3 );
params[COLOR2]->GetVecValue( flColor2, 3 );
pColorOut[0] *= flColor2[0];
pColorOut[1] *= flColor2[1];
pColorOut[2] *= flColor2[2];
if ( g_pHardwareConfig->UsesSRGBCorrectBlending() )
{
float flSRGBTint[3];
params[SRGBTINT]->GetVecValue( flSRGBTint, 3 );
pColorOut[0] *= flSRGBTint[0];
pColorOut[1] *= flSRGBTint[1];
pColorOut[2] *= flSRGBTint[2];
}
}
//-----------------------------------------------------------------------------
// FIXME: Figure out a better way to do this?
//-----------------------------------------------------------------------------
int CBaseShader::ComputeModulationFlags( IMaterialVar** params, IShaderDynamicAPI* pShaderAPI )
{
s_pShaderAPI = pShaderAPI;
int mod = 0;
if ( GetAlpha(params) < 1.0f )
{
mod |= SHADER_USING_ALPHA_MODULATION;
}
float color[3];
GetColorParameter( params, color );
if ((color[0] != 1.0) || (color[1] != 1.0) || (color[2] != 1.0))
{
mod |= SHADER_USING_COLOR_MODULATION;
}
if( UsingFlashlight(params) )
{
mod |= SHADER_USING_FLASHLIGHT;
}
if ( UsingEditor(params) )
{
mod |= SHADER_USING_EDITOR;
}
if( IS_FLAG2_SET( MATERIAL_VAR2_USE_FIXED_FUNCTION_BAKED_LIGHTING ) )
{
AssertOnce( IS_FLAG2_SET( MATERIAL_VAR2_NEEDS_BAKED_LIGHTING_SNAPSHOTS ) );
if( IS_FLAG2_SET( MATERIAL_VAR2_NEEDS_BAKED_LIGHTING_SNAPSHOTS ) )
{
mod |= SHADER_USING_FIXED_FUNCTION_BAKED_LIGHTING;
}
}
s_pShaderAPI = NULL;
return mod;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
bool CBaseShader::NeedsPowerOfTwoFrameBufferTexture( IMaterialVar **params, bool bCheckSpecificToThisFrame ) const
{
return CShader_IsFlag2Set( params, MATERIAL_VAR2_NEEDS_POWER_OF_TWO_FRAME_BUFFER_TEXTURE );
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
bool CBaseShader::NeedsFullFrameBufferTexture( IMaterialVar **params, bool bCheckSpecificToThisFrame ) const
{
return CShader_IsFlag2Set( params, MATERIAL_VAR2_NEEDS_FULL_FRAME_BUFFER_TEXTURE );
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
bool CBaseShader::IsTranslucent( IMaterialVar **params ) const
{
return IS_FLAG_SET( MATERIAL_VAR_TRANSLUCENT );
}
//-----------------------------------------------------------------------------
// Returns the translucency...
//-----------------------------------------------------------------------------
float CBaseShader::GetAlpha( IMaterialVar** ppParams )
{
if ( !ppParams )
{
ppParams = s_ppParams;
}
if (!ppParams)
return 1.0f;
if ( ppParams[FLAGS]->GetIntValue() & MATERIAL_VAR_NOALPHAMOD )
return 1.0f;
float flAlpha = ppParams[ALPHA]->GetFloatValue();
return clamp( flAlpha, 0.0f, 1.0f );
}
//-----------------------------------------------------------------------------
// Sets the color + transparency
//-----------------------------------------------------------------------------
void CBaseShader::SetColorState( int colorVar, bool setAlpha )
{
Assert( !IsSnapshotting() );
if ( !s_ppParams )
return;
// Use tint instead of color if it was specified...
IMaterialVar* pColorVar = (colorVar != -1) ? s_ppParams[colorVar] : 0;
float color[4] = { 1.0, 1.0, 1.0, 1.0 };
if (pColorVar)
{
if (pColorVar->GetType() == MATERIAL_VAR_TYPE_VECTOR)
{
pColorVar->GetVecValue( color, 3 );
}
else
{
color[0] = color[1] = color[2] = pColorVar->GetFloatValue();
}
if ( !g_pHardwareConfig->SupportsPixelShaders_1_4() ) // Clamp 0..1 for ps_1_1 and below
{
color[0] = clamp( color[0], 0.0f, 1.0f );
color[1] = clamp( color[1], 0.0f, 1.0f );
color[2] = clamp( color[2], 0.0f, 1.0f );
}
else if ( !g_pHardwareConfig->SupportsPixelShaders_2_0() ) // Clamp 0..8 for ps_1_4
{
color[0] = clamp( color[0], 0.0f, 8.0f );
color[1] = clamp( color[1], 0.0f, 8.0f );
color[2] = clamp( color[2], 0.0f, 8.0f );
}
}
ApplyColor2Factor( color );
color[3] = setAlpha ? GetAlpha() : 1.0f;
s_pShaderAPI->Color4fv( color );
}
void CBaseShader::SetModulationShadowState( int tintVar )
{
// Have have no control over the tint var...
bool doModulation = (tintVar != -1);
// We activate color modulating when we're alpha or color modulating
doModulation = doModulation || IsAlphaModulating() || IsColorModulating();
s_pShaderShadow->EnableConstantColor( doModulation );
}
void CBaseShader::SetModulationDynamicState( int tintVar )
{
if (tintVar != -1)
{
SetColorState( tintVar, true );
}
else
{
SetColorState( COLOR, true );
}
}
void CBaseShader::ApplyColor2Factor( float *pColorOut ) const // (*pColorOut) *= COLOR2
{
IMaterialVar* pColor2Var = s_ppParams[COLOR2];
if (pColor2Var->GetType() == MATERIAL_VAR_TYPE_VECTOR)
{
float flColor2[3];
pColor2Var->GetVecValue( flColor2, 3 );
pColorOut[0] *= flColor2[0];
pColorOut[1] *= flColor2[1];
pColorOut[2] *= flColor2[2];
}
if ( g_pHardwareConfig->UsesSRGBCorrectBlending() )
{
IMaterialVar* pSRGBVar = s_ppParams[SRGBTINT];
if (pSRGBVar->GetType() == MATERIAL_VAR_TYPE_VECTOR)
{
float flSRGB[3];
pSRGBVar->GetVecValue( flSRGB, 3 );
pColorOut[0] *= flSRGB[0];
pColorOut[1] *= flSRGB[1];
pColorOut[2] *= flSRGB[2];
}
}
}
void CBaseShader::ComputeModulationColor( float* color )
{
Assert( !IsSnapshotting() );
if (!s_ppParams)
return;
IMaterialVar* pColorVar = s_ppParams[COLOR];
if (pColorVar->GetType() == MATERIAL_VAR_TYPE_VECTOR)
{
pColorVar->GetVecValue( color, 3 );
}
else
{
color[0] = color[1] = color[2] = pColorVar->GetFloatValue();
}
ApplyColor2Factor( color );
if( !g_pConfig->bShowDiffuse )
{
color[0] = color[1] = color[2] = 0.0f;
}
if( mat_fullbright.GetInt() == 2 )
{
color[0] = color[1] = color[2] = 1.0f;
}
color[3] = GetAlpha();
}
//-----------------------------------------------------------------------------
//
// Helper methods for alpha blending....
//
//-----------------------------------------------------------------------------
void CBaseShader::EnableAlphaBlending( ShaderBlendFactor_t src, ShaderBlendFactor_t dst )
{
Assert( IsSnapshotting() );
s_pShaderShadow->EnableBlending( true );
s_pShaderShadow->BlendFunc( src, dst );
s_pShaderShadow->EnableDepthWrites(false);
}
void CBaseShader::DisableAlphaBlending()
{
Assert( IsSnapshotting() );
s_pShaderShadow->EnableBlending( false );
}
void CBaseShader::SetNormalBlendingShadowState( int textureVar, bool isBaseTexture )
{
Assert( IsSnapshotting() );
// Either we've got a constant modulation
bool isTranslucent = IsAlphaModulating();
// Or we've got a vertex alpha
isTranslucent = isTranslucent || (CurrentMaterialVarFlags() & MATERIAL_VAR_VERTEXALPHA);
// Or we've got a texture alpha
isTranslucent = isTranslucent || ( TextureIsTranslucent( textureVar, isBaseTexture ) &&
!(CurrentMaterialVarFlags() & MATERIAL_VAR_ALPHATEST ) );
if (isTranslucent)
{
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
}
else
{
DisableAlphaBlending();
}
}
//ConVar mat_debug_flashlight_only( "mat_debug_flashlight_only", "0" );
void CBaseShader::SetAdditiveBlendingShadowState( int textureVar, bool isBaseTexture )
{
Assert( IsSnapshotting() );
// Either we've got a constant modulation
bool isTranslucent = IsAlphaModulating();
// Or we've got a vertex alpha
isTranslucent = isTranslucent || (CurrentMaterialVarFlags() & MATERIAL_VAR_VERTEXALPHA);
// Or we've got a texture alpha
isTranslucent = isTranslucent || ( TextureIsTranslucent( textureVar, isBaseTexture ) &&
!(CurrentMaterialVarFlags() & MATERIAL_VAR_ALPHATEST ) );
/*
if ( mat_debug_flashlight_only.GetBool() )
{
if (isTranslucent)
{
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA);
//s_pShaderShadow->EnableAlphaTest( true );
//s_pShaderShadow->AlphaFunc( SHADER_ALPHAFUNC_GREATER, 0.99f );
}
else
{
EnableAlphaBlending( SHADER_BLEND_ONE, SHADER_BLEND_ZERO);
}
}
else
*/
{
if (isTranslucent)
{
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE );
}
else
{
EnableAlphaBlending( SHADER_BLEND_ONE, SHADER_BLEND_ONE );
}
}
}
void CBaseShader::SetDefaultBlendingShadowState( int textureVar, bool isBaseTexture )
{
if ( CurrentMaterialVarFlags() & MATERIAL_VAR_ADDITIVE )
{
SetAdditiveBlendingShadowState( textureVar, isBaseTexture );
}
else
{
SetNormalBlendingShadowState( textureVar, isBaseTexture );
}
}
void CBaseShader::SetBlendingShadowState( BlendType_t nMode )
{
switch ( nMode )
{
case BT_NONE:
DisableAlphaBlending();
break;
case BT_BLEND:
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
break;
case BT_ADD:
EnableAlphaBlending( SHADER_BLEND_ONE, SHADER_BLEND_ONE );
break;
case BT_BLENDADD:
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE );
break;
}
}
//-----------------------------------------------------------------------------
// Sets lightmap blending mode for single texturing
//-----------------------------------------------------------------------------
void CBaseShader::SingleTextureLightmapBlendMode( )
{
Assert( IsSnapshotting() );
s_pShaderShadow->EnableBlending( true );
s_pShaderShadow->BlendFunc( SHADER_BLEND_DST_COLOR, SHADER_BLEND_SRC_COLOR );
}
//-----------------------------------------------------------------------------
// Loads the identity transform into a matrix
//-----------------------------------------------------------------------------
void CBaseShader::LoadIdentity( MaterialMatrixMode_t matrixMode )
{
Assert( !IsSnapshotting() );
s_pShaderAPI->MatrixMode( matrixMode );
s_pShaderAPI->LoadIdentity( );
}
//-----------------------------------------------------------------------------
// Loads the camera to world transform into a matrix
//-----------------------------------------------------------------------------
void CBaseShader::LoadCameraToWorldTransform( MaterialMatrixMode_t matrixMode )
{
s_pShaderAPI->MatrixMode( matrixMode );
s_pShaderAPI->LoadCameraToWorld();
}
void CBaseShader::LoadCameraSpaceSphereMapTransform( MaterialMatrixMode_t matrixMode )
{
static float mat[4][4] =
{
{ 0.5f, 0.0f, 0.0f, 0.0f },
{ 0.0f, -0.5f, 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f, 0.0f },
{ 0.5f, -0.5f, 0.0f, 1.0f },
};
s_pShaderAPI->MatrixMode( matrixMode );
s_pShaderAPI->LoadMatrix( (float*)mat );
}
//-----------------------------------------------------------------------------
//
// Sets a texture translation transform
//
//-----------------------------------------------------------------------------
void CBaseShader::SetFixedFunctionTextureTranslation( MaterialMatrixMode_t textureTransform, int translationVar )
{
Assert( !IsSnapshotting() );
// handle scrolling of base texture
Vector2D vDelta( 0, 0 );
if (translationVar != -1)
{
s_ppParams[translationVar]->GetVecValue( vDelta.Base(), 2 );
}
if( vDelta[0] != 0.0f || vDelta[1] != 0.0f )
{
s_pShaderAPI->MatrixMode( textureTransform );
// only do the upper 3x3 since this is a 2D matrix
float mat[16];
mat[0] = 1.0f; mat[1] = 0.0f; mat[2] = 0.0f;
mat[4] = 0.0f; mat[5] = 1.0f; mat[6] = 0.0f;
mat[8] = vDelta[0]; mat[9] = vDelta[1]; mat[10] = 1.0f;
// Better set the stuff we don't set with some sort of value!
mat[3] = mat[7] = mat[11] = 0;
mat[12] = mat[13] = mat[14] = 0;
mat[15] = 1;
s_pShaderAPI->LoadMatrix( mat );
}
else
{
LoadIdentity( textureTransform );
}
}
void CBaseShader::SetFixedFunctionTextureScale( MaterialMatrixMode_t textureTransform, int scaleVar )
{
Assert( !IsSnapshotting() );
// handle scrolling of base texture
Vector2D vScale;
s_ppParams[scaleVar]->GetVecValue( vScale.Base(), 2 );
if( vScale[0] != 0.0f || vScale[1] != 0.0f )
{
s_pShaderAPI->MatrixMode( textureTransform );
// only do the upper 3x3 since this is a 2D matrix
float mat[16];
mat[0] = vScale[0]; mat[1] = 0.0f; mat[2] = 0.0f;
mat[4] = 0.0f; mat[5] = vScale[1]; mat[6] = 0.0f;
mat[8] = 0.0f; mat[9] = 0.0f; mat[10] = 1.0f;
// Better set the stuff we don't set with some sort of value!
mat[3] = mat[7] = mat[11] = 0;
mat[12] = mat[13] = mat[14] = 0;
mat[15] = 1;
s_pShaderAPI->LoadMatrix( mat );
}
else
{
LoadIdentity( textureTransform );
}
}
void CBaseShader::SetFixedFunctionTextureTransform( MaterialMatrixMode_t textureTransform, int transformVar )
{
Assert( !IsSnapshotting() );
IMaterialVar* pTransformationVar = s_ppParams[transformVar];
if (pTransformationVar && (pTransformationVar->GetType() == MATERIAL_VAR_TYPE_MATRIX))
{
s_pShaderAPI->MatrixMode( textureTransform );
const VMatrix &transformation = pTransformationVar->GetMatrixValue();
// only do the upper 3x3 since this is a 2D matrix
float mat[16];
mat[0] = transformation[0][0]; mat[1] = transformation[1][0]; mat[2] = transformation[3][0];
mat[4] = transformation[0][1]; mat[5] = transformation[1][1]; mat[6] = transformation[3][1];
mat[8] = transformation[0][3]; mat[9] = transformation[1][3]; mat[10] = transformation[3][3];
// Better set the stuff we don't set with some sort of value!
mat[3] = mat[7] = mat[11] = 0;
mat[12] = mat[13] = mat[14] = 0;
mat[15] = 1;
s_pShaderAPI->LoadMatrix( mat );
}
else
{
LoadIdentity( textureTransform );
}
}
void CBaseShader::SetFixedFunctionTextureScaledTransform( MaterialMatrixMode_t textureTransform,
int transformVar, int scaleVar )
{
Assert( !IsSnapshotting() );
float mat[16];
IMaterialVar* pTransformationVar = s_ppParams[transformVar];
if (pTransformationVar && (pTransformationVar->GetType() == MATERIAL_VAR_TYPE_MATRIX))
{
Vector2D scale( 1, 1 );
IMaterialVar* pScaleVar = s_ppParams[scaleVar];
if (pScaleVar)
{
if (pScaleVar->GetType() == MATERIAL_VAR_TYPE_VECTOR)
pScaleVar->GetVecValue( scale.Base(), 2 );
else if (pScaleVar->IsDefined())
scale[0] = scale[1] = pScaleVar->GetFloatValue();
}
s_pShaderAPI->MatrixMode( textureTransform );
const VMatrix &transformation = pTransformationVar->GetMatrixValue();
// only do the upper 3x3 since this is a 2D matrix
mat[0] = transformation[0][0] * scale[0]; mat[1] = transformation[1][0] * scale[0]; mat[2] = transformation[3][0] * scale[0];
mat[4] = transformation[0][1] * scale[1]; mat[5] = transformation[1][1] * scale[1]; mat[6] = transformation[3][1] * scale[1];
mat[8] = transformation[0][3]; mat[9] = transformation[1][3]; mat[10] = transformation[3][3];
// Better set the stuff we don't set with some sort of value!
mat[3] = mat[7] = mat[11] = 0;
mat[12] = mat[13] = mat[14] = 0;
mat[15] = 1;
s_pShaderAPI->LoadMatrix( mat );
}
else
{
SetFixedFunctionTextureScale( textureTransform, scaleVar );
}
}
//-----------------------------------------------------------------------------
//
// Helper methods for fog
//
//-----------------------------------------------------------------------------
void CBaseShader::FogToOOOverbright( void )
{
Assert( IsSnapshotting() );
if (( CurrentMaterialVarFlags() & MATERIAL_VAR_NOFOG ) == 0)
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_OO_OVERBRIGHT );
}
else
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
}
void CBaseShader::FogToWhite( void )
{
Assert( IsSnapshotting() );
if (( CurrentMaterialVarFlags() & MATERIAL_VAR_NOFOG ) == 0)
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_WHITE );
}
else
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
}
void CBaseShader::FogToBlack( void )
{
Assert( IsSnapshotting() );
if (( CurrentMaterialVarFlags() & MATERIAL_VAR_NOFOG ) == 0)
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_BLACK );
}
else
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
}
void CBaseShader::FogToGrey( void )
{
Assert( IsSnapshotting() );
if (( CurrentMaterialVarFlags() & MATERIAL_VAR_NOFOG ) == 0)
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_GREY );
}
else
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
}
void CBaseShader::FogToFogColor( void )
{
Assert( IsSnapshotting() );
if (( CurrentMaterialVarFlags() & MATERIAL_VAR_NOFOG ) == 0)
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_FOGCOLOR );
}
else
{
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
}
void CBaseShader::DisableFog( void )
{
Assert( IsSnapshotting() );
s_pShaderShadow->FogMode( SHADER_FOGMODE_DISABLED );
}
void CBaseShader::DefaultFog( void )
{
if ( CurrentMaterialVarFlags() & MATERIAL_VAR_ADDITIVE )
{
FogToBlack();
}
else
{
FogToFogColor();
}
}
//-----------------------------------------------------------------------------
// Fixed function multiply by detail texture pass
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionMultiplyByDetailPass( int baseTextureVar, int frameVar,
int textureTransformVar, int detailVar, int detailScaleVar )
{
IMaterialVar** params = s_ppParams;
if (!params[detailVar]->IsDefined())
return;
if (IsSnapshotting())
{
SetInitialShadowState();
s_pShaderShadow->EnableAlphaTest( IS_FLAG_SET(MATERIAL_VAR_ALPHATEST) );
bool translucentTexture = TextureIsTranslucent( baseTextureVar, true ) ||
IS_FLAG_SET(MATERIAL_VAR_ALPHATEST);
s_pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
s_pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE0, false );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE1, false );
// Mod 2x blend here
EnableAlphaBlending( SHADER_BLEND_DST_COLOR, SHADER_BLEND_SRC_COLOR );
s_pShaderShadow->EnableCustomPixelPipe( true );
s_pShaderShadow->CustomTextureStages( 2 );
// We need to blend towards grey based on alpha...
// We can never get the perfect alpha (vertex alpha * cc alpha * texture alpha)
// so we'll just choose to use cc alpha * texture alpha
int flags = SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD1;
// Compute alpha, stage 0 is used, stage 1 isn't.
if ( translucentTexture )
{
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_MODULATE,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
flags |= SHADER_DRAW_TEXCOORD0;
}
else
{
bool hasVertexAlpha = (CurrentMaterialVarFlags() & MATERIAL_VAR_VERTEXALPHA) != 0;
if (hasVertexAlpha)
{
flags |= SHADER_DRAW_COLOR;
}
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA, hasVertexAlpha ? SHADER_TEXOP_MODULATE : SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_CONSTANTCOLOR, SHADER_TEXARG_VERTEXCOLOR );
}
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_PREVIOUSSTAGE, SHADER_TEXARG_NONE );
// This here will perform color = vertex light * alpha + 0.5f * (1 - alpha)
// Stage 0 really doesn't do anything
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_BLEND_PREVIOUSSTAGEALPHA,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
s_pShaderShadow->DrawFlags( flags );
FogToGrey();
Draw( );
s_pShaderShadow->EnableCustomPixelPipe( false );
DisableAlphaBlending();
}
else
{
if (TextureIsTranslucent( baseTextureVar, true ) )
{
SetFixedFunctionTextureTransform( MATERIAL_TEXTURE0, textureTransformVar );
BindTexture( SHADER_SAMPLER0, baseTextureVar, frameVar );
}
else
{
// Unnecessary... but we get strange colors if we don't put something on stage 0
BindTexture( SHADER_SAMPLER0, detailVar, frameVar );
}
BindTexture( SHADER_SAMPLER1, detailVar, frameVar );
SetFixedFunctionTextureScaledTransform( MATERIAL_TEXTURE1, textureTransformVar, detailScaleVar );
float alpha = GetAlpha();
s_pShaderAPI->Color4ub( 128, 128, 128, 255 * alpha );
Draw( );
}
}
//-----------------------------------------------------------------------------
// Multiply by lightmap pass
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionMultiplyByLightmapPass( int baseTextureVar,
int frameVar, int baseTextureTransformVar, float alphaOverride )
{
if (IsSnapshotting())
{
SetInitialShadowState();
s_pShaderShadow->EnableAlphaTest( false );
s_pShaderShadow->EnableBlending( true );
SingleTextureLightmapBlendMode();
s_pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
s_pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE0, false );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE1, false );
s_pShaderShadow->EnableCustomPixelPipe( true );
s_pShaderShadow->CustomTextureStages( 2 );
// Stage zero color is not used, this op doesn't matter
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_CONSTANTCOLOR, SHADER_TEXARG_CONSTANTCOLOR );
// This here will perform color = lightmap * (cc alpha) + 1 * (1- cc alpha)
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_BLEND_PREVIOUSSTAGEALPHA,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
int flags = SHADER_DRAW_POSITION | SHADER_DRAW_LIGHTMAP_TEXCOORD1;
// Multiply the constant alpha by the texture alpha for total alpha
if (TextureIsTranslucent(baseTextureVar, true))
{
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_MODULATE,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
flags |= SHADER_DRAW_TEXCOORD0;
}
else
{
s_pShaderShadow->EnableTexture( SHADER_SAMPLER0, false );
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_SELECTARG2,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
}
// Alpha isn't used, it doesn't matter what we set it to.
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_PREVIOUSSTAGE, SHADER_TEXARG_NONE );
s_pShaderShadow->DrawFlags( flags );
FogToOOOverbright();
Draw();
s_pShaderShadow->EnableCustomPixelPipe( false );
}
else
{
s_pShaderAPI->SetDefaultState();
// Put the alpha in the color channel to modulate the color down....
float alpha = (alphaOverride < 0) ? GetAlpha() : alphaOverride;
// NOTE: 128 is a more exact OO_OVERBRIGHT; it prevents some artifacts
// s_pShaderAPI->Color4f( OO_OVERBRIGHT, OO_OVERBRIGHT, OO_OVERBRIGHT, alpha );
s_pShaderAPI->Color4ub( 128, 128, 128, (int)(alpha * 255));
if (TextureIsTranslucent(baseTextureVar, true))
{
SetFixedFunctionTextureTransform( MATERIAL_TEXTURE0, baseTextureTransformVar );
BindTexture( SHADER_SAMPLER0, baseTextureVar, frameVar );
}
LoadIdentity( MATERIAL_TEXTURE1 );
s_pShaderAPI->BindStandardTexture( SHADER_SAMPLER1, TEXTURE_LIGHTMAP );
Draw();
}
}
//-----------------------------------------------------------------------------
// Fixed function Self illumination pass
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionSelfIlluminationPass( Sampler_t sampler,
int baseTextureVar, int frameVar, int baseTextureTransformVar, int selfIllumTintVar )
{
// IMaterialVar** params = s_ppParams;
if ( IsSnapshotting() )
{
SetInitialShadowState();
// A little setup for self illum here...
SetModulationShadowState( selfIllumTintVar );
s_pShaderShadow->EnableTexture( sampler, true );
// No overbrighting
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE0, 1.0f );
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE1, 1.0f );
// Don't bother with z writes here...
s_pShaderShadow->EnableDepthWrites( false );
// We're always blending
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
int flags = SHADER_DRAW_POSITION;
if ( sampler == SHADER_SAMPLER0 )
flags |= SHADER_DRAW_TEXCOORD0;
else
flags |= SHADER_DRAW_TEXCOORD1;
s_pShaderShadow->DrawFlags( flags );
FogToFogColor();
}
else
{
s_pShaderAPI->SetDefaultState();
SetFixedFunctionTextureTransform(
(sampler == SHADER_SAMPLER0) ? MATERIAL_TEXTURE0 : MATERIAL_TEXTURE1,
baseTextureTransformVar );
BindTexture( sampler, baseTextureVar, frameVar );
// NOTE: Texture + texture offset are set from BaseTimesLightmap
SetModulationDynamicState( selfIllumTintVar );
}
Draw();
}
//-----------------------------------------------------------------------------
// Fixed function Base * detail pass
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionBaseTimesDetailPass( int baseTextureVar,
int frameVar, int baseTextureTransformVar, int detailVar, int detailScaleVar )
{
IMaterialVar** params = s_ppParams;
// We can't do this one one pass if CC and VC are both active...
bool hasDetail = (detailVar != -1) && params[detailVar]->IsDefined();
bool detailInSecondPass = hasDetail && IsColorModulating() &&
(IS_FLAG_SET(MATERIAL_VAR_VERTEXCOLOR) || IS_FLAG_SET(MATERIAL_VAR_VERTEXALPHA));
if (IsSnapshotting())
{
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE0, false );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE1, false );
// alpha test
s_pShaderShadow->EnableAlphaTest( IS_FLAG_SET(MATERIAL_VAR_ALPHATEST) );
// Alpha blending
SetDefaultBlendingShadowState( baseTextureVar, true );
// independently configure alpha and color
s_pShaderShadow->EnableAlphaPipe( true );
// Here's the color states (NOTE: SHADER_DRAW_COLOR == use Vertex Color)
s_pShaderShadow->EnableConstantColor( IsColorModulating() );
s_pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
int flags = SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD0;
// Detail texture..
if (hasDetail && (!detailInSecondPass))
{
s_pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
// Force mod2x
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE1, 2.0f );
flags |= SHADER_DRAW_TEXCOORD1;
}
// Here's the alpha states
s_pShaderShadow->EnableConstantAlpha( IsAlphaModulating() );
s_pShaderShadow->EnableVertexAlpha( IS_FLAG_SET(MATERIAL_VAR_VERTEXALPHA) );
s_pShaderShadow->EnableTextureAlpha( SHADER_TEXTURE_STAGE0, TextureIsTranslucent(baseTextureVar, true) );
if (IS_FLAG_SET(MATERIAL_VAR_VERTEXCOLOR))
flags |= SHADER_DRAW_COLOR;
s_pShaderShadow->DrawFlags( flags );
DefaultFog();
Draw();
s_pShaderShadow->EnableAlphaPipe( false );
}
else
{
SetFixedFunctionTextureTransform( MATERIAL_TEXTURE0, baseTextureTransformVar );
BindTexture( SHADER_SAMPLER0, baseTextureVar, frameVar );
// Detail texture..
if (hasDetail && (!detailInSecondPass))
{
BindTexture( SHADER_SAMPLER1, detailVar, frameVar );
SetFixedFunctionTextureScaledTransform( MATERIAL_TEXTURE1, baseTextureTransformVar, detailScaleVar );
}
SetModulationDynamicState();
Draw();
}
if (detailInSecondPass)
{
FixedFunctionMultiplyByDetailPass( baseTextureVar, frameVar, baseTextureTransformVar, detailVar, detailScaleVar );
}
}
//-----------------------------------------------------------------------------
// Helpers for environment mapping...
//-----------------------------------------------------------------------------
int CBaseShader::SetShadowEnvMappingState( int envMapMaskVar, int tintVar )
{
Assert( IsSnapshotting() );
IMaterialVar** params = s_ppParams;
int varFlags = params[FLAGS]->GetIntValue();
s_pShaderShadow->EnableAlphaTest( false );
// envmap on stage 0
s_pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
s_pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE0, true );
if ( (varFlags & MATERIAL_VAR_ENVMAPSPHERE) == 0 )
s_pShaderShadow->TexGen( SHADER_TEXTURE_STAGE0, SHADER_TEXGENPARAM_CAMERASPACEREFLECTIONVECTOR );
else
s_pShaderShadow->TexGen( SHADER_TEXTURE_STAGE0, SHADER_TEXGENPARAM_SPHERE_MAP );
int flags = SHADER_DRAW_POSITION | SHADER_DRAW_NORMAL;
// mask on stage 1
if (params[envMapMaskVar]->IsDefined() || (varFlags & MATERIAL_VAR_BASEALPHAENVMAPMASK))
{
s_pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
flags |= SHADER_DRAW_TEXCOORD1;
}
else
{
s_pShaderShadow->EnableTexture( SHADER_SAMPLER1, false );
}
if (varFlags & MATERIAL_VAR_BASEALPHAENVMAPMASK)
{
s_pShaderShadow->EnableCustomPixelPipe( true );
s_pShaderShadow->CustomTextureStages( 2 );
// Color = base texture * envmaptint * (1 - mask alpha)
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_MODULATE, SHADER_TEXARG_TEXTURE, SHADER_TEXARG_CONSTANTCOLOR );
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_MODULATE, SHADER_TEXARG_PREVIOUSSTAGE, SHADER_TEXARG_INVTEXTUREALPHA );
// Use alpha modulation * vertex alpha * env map alpha
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_MODULATE, SHADER_TEXARG_VERTEXCOLOR, SHADER_TEXARG_TEXTURE );
s_pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_ALPHA, SHADER_TEXOP_SELECTARG1, SHADER_TEXARG_PREVIOUSSTAGE, SHADER_TEXARG_CONSTANTCOLOR );
}
else
{
s_pShaderShadow->EnableAlphaPipe( true );
// Color = base texture * envmaptint * mask
s_pShaderShadow->EnableConstantColor( tintVar >= 0 );
// Alpha = vertex alpha * constant alpha * env map alpha * mask alpha (only if it's not a base alpha mask)
s_pShaderShadow->EnableConstantAlpha( IsAlphaModulating() );
s_pShaderShadow->EnableVertexAlpha( (varFlags & MATERIAL_VAR_VERTEXALPHA) != 0 );
s_pShaderShadow->EnableTextureAlpha( SHADER_TEXTURE_STAGE0, true );
s_pShaderShadow->EnableTextureAlpha( SHADER_TEXTURE_STAGE1, params[envMapMaskVar]->IsTexture() );
}
return flags;
}
void CBaseShader::SetDynamicEnvMappingState( int envMapVar, int envMapMaskVar,
int baseTextureVar, int envMapFrameVar, int envMapMaskFrameVar, int frameVar,
int maskOffsetVar, int maskScaleVar, int tintVar )
{
Assert( !IsSnapshotting() );
IMaterialVar** params = s_ppParams;
int varFlags = params[FLAGS]->GetIntValue();
if( (varFlags & MATERIAL_VAR_ENVMAPSPHERE) == 0 )
{
if ( (varFlags & MATERIAL_VAR_ENVMAPCAMERASPACE) == 0 )
{
LoadCameraToWorldTransform( MATERIAL_TEXTURE0 );
}
else
{
LoadIdentity( MATERIAL_TEXTURE0 );
}
}
else
{
LoadCameraSpaceSphereMapTransform( MATERIAL_TEXTURE0 );
}
BindTexture( SHADER_SAMPLER0, envMapVar, envMapFrameVar );
if (params[envMapMaskVar]->IsTexture())
{
SetFixedFunctionTextureScaledTransform( MATERIAL_TEXTURE1,
maskOffsetVar, maskScaleVar );
BindTexture( SHADER_SAMPLER1, envMapMaskVar, envMapMaskFrameVar );
}
else if (varFlags & MATERIAL_VAR_BASEALPHAENVMAPMASK)
{
SetFixedFunctionTextureScaledTransform( MATERIAL_TEXTURE1,
maskOffsetVar, maskScaleVar );
BindTexture( SHADER_SAMPLER1, baseTextureVar, frameVar );
}
SetModulationDynamicState( tintVar );
}
//-----------------------------------------------------------------------------
// Masked environment map
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionMaskedEnvmapPass( int envMapVar, int envMapMaskVar,
int baseTextureVar, int envMapFrameVar, int envMapMaskFrameVar,
int frameVar, int maskOffsetVar, int maskScaleVar, int envMapTintVar )
{
// IMaterialVar** params = ShaderState().m_ppParams;
if (IsSnapshotting())
{
// Alpha blending
SetDefaultBlendingShadowState( envMapMaskVar, false );
// Disable overbright
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE0, 1.0f );
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE1, 1.0f );
int flags = SetShadowEnvMappingState( envMapMaskVar, envMapTintVar );
s_pShaderShadow->DrawFlags( flags );
DefaultFog();
Draw();
s_pShaderShadow->EnableCustomPixelPipe( false );
s_pShaderShadow->EnableAlphaPipe( false );
}
else
{
SetDynamicEnvMappingState( envMapVar, envMapMaskVar, baseTextureVar,
envMapFrameVar, envMapMaskFrameVar, frameVar,
maskOffsetVar, maskScaleVar, envMapTintVar );
Draw();
}
}
//-----------------------------------------------------------------------------
// Add masked environment map
//-----------------------------------------------------------------------------
void CBaseShader::FixedFunctionAdditiveMaskedEnvmapPass( int envMapVar, int envMapMaskVar,
int baseTextureVar, int envMapFrameVar, int envMapMaskFrameVar,
int frameVar, int maskOffsetVar, int maskScaleVar, int envMapTintVar )
{
// IMaterialVar** params = ShaderState().m_ppParams;
if (IsSnapshotting())
{
SetInitialShadowState();
// Alpha blending
SetAdditiveBlendingShadowState( envMapMaskVar, false );
// Disable overbright
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE0, 1.0f );
s_pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE1, 1.0f );
// Don't bother with z writes here...
s_pShaderShadow->EnableDepthWrites( false );
int flags = SetShadowEnvMappingState( envMapMaskVar, envMapTintVar );
s_pShaderShadow->DrawFlags( flags );
FogToBlack();
Draw();
s_pShaderShadow->EnableCustomPixelPipe( false );
s_pShaderShadow->EnableAlphaPipe( false );
}
else
{
SetDynamicEnvMappingState( envMapVar, envMapMaskVar, baseTextureVar,
envMapFrameVar, envMapMaskFrameVar, frameVar,
maskOffsetVar, maskScaleVar, envMapTintVar );
Draw();
}
}
void CBaseShader::CleanupDynamicStateFixedFunction( )
{
Assert( !IsSnapshotting() );
LoadIdentity( MATERIAL_TEXTURE0 );
}
bool CBaseShader::UsingFlashlight( IMaterialVar **params ) const
{
if( IsSnapshotting() )
{
return CShader_IsFlag2Set( params, MATERIAL_VAR2_USE_FLASHLIGHT );
}
else
{
return s_pShaderAPI->InFlashlightMode();
}
}
bool CBaseShader::UsingEditor( IMaterialVar **params ) const
{
if( IsSnapshotting() )
{
return CShader_IsFlag2Set( params, MATERIAL_VAR2_USE_EDITOR );
}
else
{
return s_pShaderAPI->InEditorMode();
}
}
void CBaseShader::DrawFlashlight_dx70(
IMaterialVar** params, IShaderDynamicAPI *pShaderAPI, IShaderShadow* pShaderShadow,
int flashlightTextureVar, int flashlightTextureFrameVar,
bool suppress_lighting )
{
SHADOW_STATE
{
SET_FLAGS2( MATERIAL_VAR2_NEEDS_FIXED_FUNCTION_FLASHLIGHT );
pShaderShadow->EnableDepthWrites( false );
pShaderShadow->EnableAlphaWrites( false );
// Alpha test
// pShaderShadow->EnableAlphaTest( IS_FLAG_SET( MATERIAL_VAR_ALPHATEST ) );
bool bIsAlphaTested = IS_FLAG_SET( MATERIAL_VAR_ALPHATEST ) != 0;
if( bIsAlphaTested )
{
// disable alpha test and use the zfunc zequals since alpha isn't guaranteed to
// be the same on both the regular pass and the flashlight pass.
s_pShaderShadow->EnableAlphaTest( false );
s_pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_EQUAL );
}
// Alpha blend
SetAdditiveBlendingShadowState( BASETEXTURE, true );
int flags = SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD1 | SHADER_DRAW_COLOR | SHADER_DRAW_NORMAL;
pShaderShadow->DrawFlags( flags );
FogToBlack();
if ( !suppress_lighting )
pShaderShadow->EnableLighting( true );
pShaderShadow->EnableCustomPixelPipe( true );
pShaderShadow->CustomTextureStages( 2 );
// color stage 0
// projected texture * vertex color (lighting)
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_COLOR,
SHADER_TEXOP_MODULATE,
SHADER_TEXARG_TEXTURE,
SHADER_TEXARG_VERTEXCOLOR );
// color stage 1
// * base texture
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_COLOR,
SHADER_TEXOP_MODULATE,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_PREVIOUSSTAGE );
// alpha stage 0
// get alpha from constant alpha
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
SHADER_TEXCHANNEL_ALPHA,
SHADER_TEXOP_SELECTARG1,
SHADER_TEXARG_CONSTANTCOLOR, SHADER_TEXARG_NONE );
// alpha stage 1
// get alpha from $basetexture
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
SHADER_TEXCHANNEL_ALPHA,
SHADER_TEXOP_MODULATE,
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_PREVIOUSSTAGE );
pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
// Shove the view position into texcoord 0 before the texture matrix.
pShaderShadow->TexGen( SHADER_TEXTURE_STAGE0, SHADER_TEXGENPARAM_EYE_LINEAR );
pShaderShadow->EnableTexGen( SHADER_TEXTURE_STAGE0, true );
}
DYNAMIC_STATE
{
SetFlashlightFixedFunctionTextureTransform( MATERIAL_TEXTURE0 );
// NOTE: This has to come after the loadmatrix since the loadmatrix screws with the
// transform flags!!!!!!
// Specify that we have XYZ texcoords that need to be divided by W before the pixel shader.
// NOTE Tried to divide XY by Z, but doesn't work.
pShaderAPI->SetTextureTransformDimension( SHADER_TEXTURE_STAGE0, 3, true );
BindTexture( SHADER_SAMPLER0, flashlightTextureVar, flashlightTextureFrameVar );
if( params[BASETEXTURE]->IsTexture() )
{
BindTexture( SHADER_SAMPLER1, BASETEXTURE, FRAME );
}
else
{
pShaderAPI->BindStandardTexture( SHADER_SAMPLER1, TEXTURE_GREY );
}
SetModulationDynamicState();
}
Draw();
}
void CBaseShader::SetFlashlightFixedFunctionTextureTransform( MaterialMatrixMode_t matrix )
{
VMatrix worldToTexture;
s_pShaderAPI->GetFlashlightState( worldToTexture );
VMatrix worldToView, viewToWorld, viewToTexture;
s_pShaderAPI->GetMatrix( MATERIAL_VIEW, &worldToView[0][0] );
// The matrix that we get back from the shader api is transposed. . . yuck.
MatrixTranspose( worldToView, worldToView );
MatrixInverseGeneral( worldToView, viewToWorld );
MatrixMultiply( worldToTexture, viewToWorld, viewToTexture );
s_pShaderAPI->MatrixMode( matrix );
// tranpose before going into the shaderapi. . . suck
MatrixTranspose( viewToTexture, viewToTexture );
s_pShaderAPI->LoadMatrix( &viewToTexture[0][0] );
}
bool CBaseShader::IsHDREnabled( void )
{
// HDRFIXME! Need to fix this for vgui materials
HDRType_t hdr_mode=g_pHardwareConfig->GetHDRType();
switch(hdr_mode)
{
case HDR_TYPE_NONE:
return false;
case HDR_TYPE_INTEGER:
return true;
case HDR_TYPE_FLOAT:
{
ITexture *pRT = s_pShaderAPI->GetRenderTargetEx( 0 );
if( pRT && pRT->GetImageFormat() == IMAGE_FORMAT_RGBA16161616F )
{
return true;
}
}
}
return false;
}