Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "cbase.h"
#include "shareddefs.h"
#include "materialsystem/imesh.h"
#include "materialsystem/imaterial.h"
#include "view.h"
#include "iviewrender.h"
#include "view_shared.h"
#include "texture_group_names.h"
#include "tier0/icommandline.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
static ConVar mat_slopescaledepthbias_shadowmap( "mat_slopescaledepthbias_shadowmap", "16", FCVAR_CHEAT );
static ConVar mat_depthbias_shadowmap( "mat_depthbias_shadowmap", "0.0005", FCVAR_CHEAT );
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
class C_EnvProjectedTexture : public C_BaseEntity
{
DECLARE_CLASS( C_EnvProjectedTexture, C_BaseEntity );
public:
DECLARE_CLIENTCLASS();
virtual void OnDataChanged( DataUpdateType_t updateType );
void ShutDownLightHandle( void );
virtual void Simulate();
void UpdateLight( bool bForceUpdate );
C_EnvProjectedTexture();
~C_EnvProjectedTexture();
private:
ClientShadowHandle_t m_LightHandle;
EHANDLE m_hTargetEntity;
bool m_bState;
float m_flLightFOV;
bool m_bEnableShadows;
bool m_bLightOnlyTarget;
bool m_bLightWorld;
bool m_bCameraSpace;
Vector m_LinearFloatLightColor;
float m_flAmbient;
float m_flNearZ;
float m_flFarZ;
char m_SpotlightTextureName[ MAX_PATH ];
int m_nSpotlightTextureFrame;
int m_nShadowQuality;
};
IMPLEMENT_CLIENTCLASS_DT( C_EnvProjectedTexture, DT_EnvProjectedTexture, CEnvProjectedTexture )
RecvPropEHandle( RECVINFO( m_hTargetEntity ) ),
RecvPropBool( RECVINFO( m_bState ) ),
RecvPropFloat( RECVINFO( m_flLightFOV ) ),
RecvPropBool( RECVINFO( m_bEnableShadows ) ),
RecvPropBool( RECVINFO( m_bLightOnlyTarget ) ),
RecvPropBool( RECVINFO( m_bLightWorld ) ),
RecvPropBool( RECVINFO( m_bCameraSpace ) ),
RecvPropVector( RECVINFO( m_LinearFloatLightColor ) ),
RecvPropFloat( RECVINFO( m_flAmbient ) ),
RecvPropString( RECVINFO( m_SpotlightTextureName ) ),
RecvPropInt( RECVINFO( m_nSpotlightTextureFrame ) ),
RecvPropFloat( RECVINFO( m_flNearZ ) ),
RecvPropFloat( RECVINFO( m_flFarZ ) ),
RecvPropInt( RECVINFO( m_nShadowQuality ) ),
END_RECV_TABLE()
C_EnvProjectedTexture::C_EnvProjectedTexture( void )
{
m_LightHandle = CLIENTSHADOW_INVALID_HANDLE;
}
C_EnvProjectedTexture::~C_EnvProjectedTexture( void )
{
ShutDownLightHandle();
}
void C_EnvProjectedTexture::ShutDownLightHandle( void )
{
// Clear out the light
if( m_LightHandle != CLIENTSHADOW_INVALID_HANDLE )
{
g_pClientShadowMgr->DestroyFlashlight( m_LightHandle );
m_LightHandle = CLIENTSHADOW_INVALID_HANDLE;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : updateType -
//-----------------------------------------------------------------------------
void C_EnvProjectedTexture::OnDataChanged( DataUpdateType_t updateType )
{
UpdateLight( true );
BaseClass::OnDataChanged( updateType );
}
void C_EnvProjectedTexture::UpdateLight( bool bForceUpdate )
{
if ( m_bState == false )
{
if ( m_LightHandle != CLIENTSHADOW_INVALID_HANDLE )
{
ShutDownLightHandle();
}
return;
}
Vector vForward, vRight, vUp, vPos = GetAbsOrigin();
FlashlightState_t state;
if ( m_hTargetEntity != NULL )
{
if ( m_bCameraSpace )
{
const QAngle &angles = GetLocalAngles();
C_BasePlayer *pPlayer = C_BasePlayer::GetLocalPlayer();
if( pPlayer )
{
const QAngle playerAngles = pPlayer->GetAbsAngles();
Vector vPlayerForward, vPlayerRight, vPlayerUp;
AngleVectors( playerAngles, &vPlayerForward, &vPlayerRight, &vPlayerUp );
matrix3x4_t mRotMatrix;
AngleMatrix( angles, mRotMatrix );
VectorITransform( vPlayerForward, mRotMatrix, vForward );
VectorITransform( vPlayerRight, mRotMatrix, vRight );
VectorITransform( vPlayerUp, mRotMatrix, vUp );
float dist = (m_hTargetEntity->GetAbsOrigin() - GetAbsOrigin()).Length();
vPos = m_hTargetEntity->GetAbsOrigin() - vForward*dist;
VectorNormalize( vForward );
VectorNormalize( vRight );
VectorNormalize( vUp );
}
}
else
{
vForward = m_hTargetEntity->GetAbsOrigin() - GetAbsOrigin();
VectorNormalize( vForward );
// JasonM - unimplemented
Assert (0);
//Quaternion q = DirectionToOrientation( dir );
//
// JasonM - set up vRight, vUp
//
// VectorNormalize( vRight );
// VectorNormalize( vUp );
}
}
else
{
AngleVectors( GetAbsAngles(), &vForward, &vRight, &vUp );
}
state.m_fHorizontalFOVDegrees = m_flLightFOV;
state.m_fVerticalFOVDegrees = m_flLightFOV;
state.m_vecLightOrigin = vPos;
BasisToQuaternion( vForward, vRight, vUp, state.m_quatOrientation );
state.m_fQuadraticAtten = 0.0;
state.m_fLinearAtten = 100;
state.m_fConstantAtten = 0.0f;
state.m_Color[0] = m_LinearFloatLightColor.x;
state.m_Color[1] = m_LinearFloatLightColor.y;
state.m_Color[2] = m_LinearFloatLightColor.z;
state.m_Color[3] = 0.0f; // fixme: need to make ambient work m_flAmbient;
state.m_NearZ = m_flNearZ;
state.m_FarZ = m_flFarZ;
state.m_flShadowSlopeScaleDepthBias = mat_slopescaledepthbias_shadowmap.GetFloat();
state.m_flShadowDepthBias = mat_depthbias_shadowmap.GetFloat();
state.m_bEnableShadows = m_bEnableShadows;
state.m_pSpotlightTexture = materials->FindTexture( m_SpotlightTextureName, TEXTURE_GROUP_OTHER, false );
state.m_nSpotlightTextureFrame = m_nSpotlightTextureFrame;
state.m_nShadowQuality = m_nShadowQuality; // Allow entity to affect shadow quality
if( m_LightHandle == CLIENTSHADOW_INVALID_HANDLE )
{
m_LightHandle = g_pClientShadowMgr->CreateFlashlight( state );
}
else
{
if ( m_hTargetEntity != NULL || bForceUpdate == true )
{
g_pClientShadowMgr->UpdateFlashlightState( m_LightHandle, state );
}
}
if( m_bLightOnlyTarget )
{
g_pClientShadowMgr->SetFlashlightTarget( m_LightHandle, m_hTargetEntity );
}
else
{
g_pClientShadowMgr->SetFlashlightTarget( m_LightHandle, NULL );
}
g_pClientShadowMgr->SetFlashlightLightWorld( m_LightHandle, m_bLightWorld );
if ( bForceUpdate == false )
{
g_pClientShadowMgr->UpdateProjectedTexture( m_LightHandle, true );
}
}
void C_EnvProjectedTexture::Simulate( void )
{
UpdateLight( false );
BaseClass::Simulate();
}