153 lines
4.9 KiB
C++
153 lines
4.9 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "BaseVSShader.h"
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#include "convar.h"
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#include "portalstaticoverlay_vs11.inc"
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#include "portalstaticoverlay_ps11.inc"
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BEGIN_VS_SHADER( PortalStaticOverlay,
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"Help for PortalStaticOverlay shader" )
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BEGIN_SHADER_PARAMS
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SHADER_PARAM_OVERRIDE( COLOR, SHADER_PARAM_TYPE_COLOR, "{255 255 255}", "unused", SHADER_PARAM_NOT_EDITABLE )
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SHADER_PARAM_OVERRIDE( ALPHA, SHADER_PARAM_TYPE_FLOAT, "1.0", "unused", SHADER_PARAM_NOT_EDITABLE )
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SHADER_PARAM( STATICAMOUNT, SHADER_PARAM_TYPE_FLOAT, "0.0", "Amount of the static blend texture to blend into the base texture" )
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SHADER_PARAM( STATICBLENDTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "When adding static, this is the texture that gets blended in" )
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SHADER_PARAM( STATICBLENDTEXTUREFRAME, SHADER_PARAM_TYPE_INTEGER, "0", "" )
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SHADER_PARAM( ALPHAMASKTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "An alpha mask for odd shaped portals" )
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SHADER_PARAM( ALPHAMASKTEXTUREFRAME, SHADER_PARAM_TYPE_INTEGER, "0", "" )
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SHADER_PARAM( NOCOLORWRITE, SHADER_PARAM_TYPE_INTEGER, "0", "" )
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END_SHADER_PARAMS
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SHADER_INIT_PARAMS()
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{
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SET_FLAGS( MATERIAL_VAR_TRANSLUCENT );
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}
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SHADER_FALLBACK
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{
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if( !g_pHardwareConfig->SupportsVertexAndPixelShaders() )
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return "PortalStaticOverlay_DX60";
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return 0;
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}
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SHADER_INIT
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{
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if( params[STATICBLENDTEXTURE]->IsDefined() )
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LoadTexture( STATICBLENDTEXTURE );
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if( params[ALPHAMASKTEXTURE]->IsDefined() )
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LoadTexture( ALPHAMASKTEXTURE );
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if( !params[STATICAMOUNT]->IsDefined() )
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params[STATICAMOUNT]->SetFloatValue( 0.0f );
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if( !params[STATICBLENDTEXTURE]->IsDefined() )
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params[STATICBLENDTEXTURE]->SetIntValue( 0 );
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if( !params[STATICBLENDTEXTUREFRAME]->IsDefined() )
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params[STATICBLENDTEXTUREFRAME]->SetIntValue( 0 );
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if( !params[ALPHAMASKTEXTURE]->IsDefined() )
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params[ALPHAMASKTEXTURE]->SetIntValue( 0 );
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if( !params[ALPHAMASKTEXTUREFRAME]->IsDefined() )
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params[ALPHAMASKTEXTUREFRAME]->SetIntValue( 0 );
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if( !params[NOCOLORWRITE]->IsDefined() )
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params[NOCOLORWRITE]->SetIntValue( 0 );
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}
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SHADER_DRAW
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{
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bool bStaticBlendTexture = params[STATICBLENDTEXTURE]->IsTexture();
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bool bAlphaMaskTexture = params[ALPHAMASKTEXTURE]->IsTexture();
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bool bIsModel = IS_FLAG_SET( MATERIAL_VAR_MODEL );
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SHADOW_STATE
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{
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SetInitialShadowState();
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FogToFogColor();
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//pShaderShadow->EnablePolyOffset( SHADER_POLYOFFSET_DECAL ); //a portal is effectively a decal on top of a wall
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pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_NEAREROREQUAL );
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pShaderShadow->EnableDepthWrites( true );
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pShaderShadow->EnableBlending( true );
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pShaderShadow->BlendFunc( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
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pShaderShadow->EnableAlphaTest( true );
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pShaderShadow->AlphaFunc( SHADER_ALPHAFUNC_GREATER, 0.0f );
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pShaderShadow->EnableColorWrites( params[NOCOLORWRITE]->GetIntValue() == 0 );
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if( bStaticBlendTexture || bAlphaMaskTexture )
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pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
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if( bStaticBlendTexture && bAlphaMaskTexture )
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pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
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int fmt = VERTEX_POSITION | VERTEX_NORMAL;
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int userDataSize = 0;
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if( bIsModel )
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{
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userDataSize = 4;
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}
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else
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{
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fmt |= VERTEX_TANGENT_S | VERTEX_TANGENT_T;
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}
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pShaderShadow->VertexShaderVertexFormat( fmt, 1, 0, userDataSize );
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DECLARE_STATIC_VERTEX_SHADER( portalstaticoverlay_vs11 );
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SET_STATIC_VERTEX_SHADER_COMBO( MODEL, bIsModel );
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SET_STATIC_VERTEX_SHADER( portalstaticoverlay_vs11 );
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DECLARE_STATIC_PIXEL_SHADER( portalstaticoverlay_ps11 );
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SET_STATIC_PIXEL_SHADER_COMBO( HASALPHAMASK, bAlphaMaskTexture );
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SET_STATIC_PIXEL_SHADER_COMBO( HASSTATICTEXTURE, bStaticBlendTexture );
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SET_STATIC_PIXEL_SHADER( portalstaticoverlay_ps11 );
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}
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DYNAMIC_STATE
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{
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pShaderAPI->SetDefaultState();
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float fStaticAmount = params[STATICAMOUNT]->GetFloatValue();
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//x is static, y is inverse static
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float pc0[4] = { fStaticAmount, 1.0f - fStaticAmount, 0.0f, 0.0f };
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pShaderAPI->SetPixelShaderConstant( 0, pc0 );
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if( bStaticBlendTexture )
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{
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BindTexture( SHADER_SAMPLER0, STATICBLENDTEXTURE, STATICBLENDTEXTUREFRAME );
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if( bAlphaMaskTexture )
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BindTexture( SHADER_SAMPLER1, ALPHAMASKTEXTURE, ALPHAMASKTEXTUREFRAME );
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}
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else if( bAlphaMaskTexture )
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{
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BindTexture( SHADER_SAMPLER0, ALPHAMASKTEXTURE, ALPHAMASKTEXTUREFRAME );
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}
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DECLARE_DYNAMIC_VERTEX_SHADER( portalstaticoverlay_vs11 );
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SET_DYNAMIC_VERTEX_SHADER_COMBO( SKINNING, pShaderAPI->GetCurrentNumBones() > 0 );
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SET_DYNAMIC_VERTEX_SHADER( portalstaticoverlay_vs11 );
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DECLARE_DYNAMIC_PIXEL_SHADER( portalstaticoverlay_ps11 );
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SET_DYNAMIC_PIXEL_SHADER_COMBO( HDRENABLED, IsHDREnabled() );
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SET_DYNAMIC_PIXEL_SHADER_COMBO( PIXELFOGTYPE, pShaderAPI->GetPixelFogCombo() );
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SET_DYNAMIC_PIXEL_SHADER( portalstaticoverlay_ps11 );
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}
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Draw();
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}
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END_SHADER
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