diff options
Diffstat (limited to 'mp/src/materialsystem/stdshaders/shadowmodel_dx8.cpp')
| -rw-r--r-- | mp/src/materialsystem/stdshaders/shadowmodel_dx8.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/mp/src/materialsystem/stdshaders/shadowmodel_dx8.cpp b/mp/src/materialsystem/stdshaders/shadowmodel_dx8.cpp new file mode 100644 index 00000000..e7d7228a --- /dev/null +++ b/mp/src/materialsystem/stdshaders/shadowmodel_dx8.cpp @@ -0,0 +1,97 @@ +//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: +// +// $Header: $ +// $NoKeywords: $ +//=============================================================================// + +#include "BaseVSShader.h" + +#include "shadowmodel.inc" + +// memdbgon must be the last include file in a .cpp file!!! +#include "tier0/memdbgon.h" + +DEFINE_FALLBACK_SHADER( ShadowModel, ShadowModel_DX8 ) + +BEGIN_VS_SHADER_FLAGS( ShadowModel_DX8, "Help for ShadowModel", SHADER_NOT_EDITABLE ) + + BEGIN_SHADER_PARAMS + SHADER_PARAM( BASETEXTUREOFFSET, SHADER_PARAM_TYPE_VEC2, "[0 0]", "$baseTexture texcoord offset" ) + SHADER_PARAM( BASETEXTURESCALE, SHADER_PARAM_TYPE_VEC2, "[1 1]", "$baseTexture texcoord scale" ) + SHADER_PARAM( FALLOFFOFFSET, SHADER_PARAM_TYPE_FLOAT, "0", "Distance at which shadow starts to fade" ) + SHADER_PARAM( FALLOFFDISTANCE, SHADER_PARAM_TYPE_FLOAT, "100", "Max shadow distance" ) + SHADER_PARAM( FALLOFFAMOUNT, SHADER_PARAM_TYPE_FLOAT, "0.9", "Amount to brighten the shadow at max dist" ) + END_SHADER_PARAMS + + SHADER_INIT_PARAMS() + { + SET_FLAGS2( MATERIAL_VAR2_SUPPORTS_HW_SKINNING ); + if (!params[BASETEXTURESCALE]->IsDefined()) + { + Vector2D scale(1, 1); + params[BASETEXTURESCALE]->SetVecValue( scale.Base(), 2 ); + } + + if (!params[FALLOFFDISTANCE]->IsDefined()) + params[FALLOFFDISTANCE]->SetFloatValue( 100.0f ); + + if (!params[FALLOFFAMOUNT]->IsDefined()) + params[FALLOFFAMOUNT]->SetFloatValue( 0.9f ); + } + + SHADER_INIT + { + if (params[BASETEXTURE]->IsDefined()) + LoadTexture( BASETEXTURE ); + } + + SHADER_DRAW + { + SHADOW_STATE + { + // Base texture on stage 0 + pShaderShadow->EnableTexture( SHADER_SAMPLER0, true ); + + // Multiplicative blending state... + EnableAlphaBlending( SHADER_BLEND_DST_COLOR, SHADER_BLEND_ZERO ); + + int fmt = VERTEX_POSITION | VERTEX_NORMAL; + pShaderShadow->VertexShaderVertexFormat( fmt, 1, 0, 0 ); + + shadowmodel_Static_Index vshIndex; + pShaderShadow->SetVertexShader( "ShadowModel", vshIndex.GetIndex() ); + + pShaderShadow->SetPixelShader( "ShadowModel" ); + + // We need to fog to *white* regardless of overbrighting... + FogToWhite(); + } + DYNAMIC_STATE + { + BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME ); + SetVertexShaderMatrix3x4( VERTEX_SHADER_SHADER_SPECIFIC_CONST_0, BASETEXTURETRANSFORM ); + + SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_3, BASETEXTUREOFFSET ); + SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, BASETEXTURESCALE ); + + Vector4D shadow; + shadow[0] = params[FALLOFFOFFSET]->GetFloatValue(); + shadow[1] = params[FALLOFFDISTANCE]->GetFloatValue() + shadow[0]; + if (shadow[1] != 0.0f) + shadow[1] = 1.0f / shadow[1]; + shadow[2] = params[FALLOFFAMOUNT]->GetFloatValue(); + pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_5, shadow.Base(), 1 ); + + // The constant color is the shadow color... + SetModulationVertexShaderDynamicState(); + + shadowmodel_Dynamic_Index vshIndex; + vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z ); + vshIndex.SetSKINNING( pShaderAPI->GetCurrentNumBones() > 0 ); + pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() ); + } + Draw( ); + } +END_SHADER |