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materialsystem/stdshaders/overlay_fit.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "BaseVSShader.h"
+#include "convar.h"
+
+#include "overlay_fit_vs11.inc"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// FIXME: Need to make a dx9 version so that "CENTROID" works.
+
+BEGIN_VS_SHADER_FLAGS( Overlay_Fit, "Help for TerrainTest2", SHADER_NOT_EDITABLE )
+
+	BEGIN_SHADER_PARAMS
+	END_SHADER_PARAMS
+
+	// Set up anything that is necessary to make decisions in SHADER_FALLBACK.
+	SHADER_INIT_PARAMS()
+	{
+		// No texture means no self-illum or env mask in base alpha
+		CLEAR_FLAGS( MATERIAL_VAR_BASEALPHAENVMAPMASK );
+		
+		// If in decal mode, no debug override...
+		if (IS_FLAG_SET(MATERIAL_VAR_DECAL))
+		{
+			SET_FLAGS( MATERIAL_VAR_NO_DEBUG_OVERRIDE );
+		}
+
+		SET_FLAGS2( MATERIAL_VAR2_LIGHTING_LIGHTMAP );
+	}
+
+	SHADER_FALLBACK
+	{
+		if ( IsPC() && !g_pHardwareConfig->SupportsVertexAndPixelShaders() )
+			return "WorldTwoTextureBlend";
+
+		return 0;
+	}
+
+	SHADER_INIT
+	{
+		CLEAR_FLAGS( MATERIAL_VAR_BASEALPHAENVMAPMASK );
+		LoadTexture( BASETEXTURE );
+	}
+
+	SHADER_DRAW
+	{
+		SHADOW_STATE
+		{
+			pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );	// BASETEXTURE
+			pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );	// LIGHTMAP
+			pShaderShadow->EnableTexture( SHADER_SAMPLER2, true );	// BASETEXTURE
+
+			// texcoord0 : base texcoord
+			// texcoord1 : alpha texcoord (mapped to fill the overlay)
+			unsigned int flags = VERTEX_POSITION | VERTEX_COLOR;
+			int numTexCoords = 3;
+			pShaderShadow->VertexShaderVertexFormat( flags, numTexCoords, 0, 0 );
+
+			pShaderShadow->EnableBlending( true );
+			pShaderShadow->BlendFunc( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
+
+			pShaderShadow->EnablePolyOffset( SHADER_POLYOFFSET_DECAL );
+
+			overlay_fit_vs11_Static_Index vshIndex;
+			pShaderShadow->SetVertexShader( "Overlay_Fit_vs11", vshIndex.GetIndex() );
+
+			pShaderShadow->SetPixelShader ( "Overlay_Fit_ps11", 0 );
+
+			FogToFogColor();
+		}
+		DYNAMIC_STATE
+		{
+			BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
+			pShaderAPI->BindStandardTexture( SHADER_SAMPLER1, TEXTURE_LIGHTMAP );
+			BindTexture( SHADER_SAMPLER2, BASETEXTURE, FRAME );
+
+			overlay_fit_vs11_Dynamic_Index vshIndex;
+			vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
+			pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
+		}
+		Draw();
+	}
+END_SHADER
+