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materialsystem/stdshaders/yuv.cpp

@@ -0,0 +1,62 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "BaseVSShader.h"
+
+#include "screenspaceeffect.inc"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+BEGIN_VS_SHADER_FLAGS( YUV, "Help for YUV", SHADER_NOT_EDITABLE )
+	BEGIN_SHADER_PARAMS
+	END_SHADER_PARAMS
+
+	SHADER_INIT_PARAMS()
+	{
+		SET_FLAGS2( MATERIAL_VAR2_NEEDS_FULL_FRAME_BUFFER_TEXTURE );
+	}
+
+	SHADER_INIT
+	{
+	}
+	
+	SHADER_FALLBACK
+	{
+		// Requires DX8 + above
+		if ( IsPC() && !g_pHardwareConfig->SupportsVertexAndPixelShaders())
+		{
+			Assert( 0 );
+			return "Wireframe";
+		}
+		return 0;
+	}
+
+	SHADER_DRAW
+	{
+		SHADOW_STATE
+		{
+			pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
+			pShaderShadow->VertexShaderVertexFormat( VERTEX_POSITION, 1, 0, 0 );
+
+			screenspaceeffect_Static_Index vshIndex;
+			pShaderShadow->SetVertexShader( "ScreenSpaceEffect", vshIndex.GetIndex() );
+
+			pShaderShadow->SetPixelShader( "YUV" );
+		}
+
+		DYNAMIC_STATE
+		{
+			pShaderAPI->BindStandardTexture( SHADER_SAMPLER0, TEXTURE_FRAME_BUFFER_FULL_TEXTURE_0 );
+
+			screenspaceeffect_Dynamic_Index vshIndex;
+			vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
+			pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
+		}
+		Draw();
+	}
+END_SHADER