1 files changed, 113 insertions, 0 deletions
diff --git a/mp/src/materialsystem/stdshaders/worldvertexalpha_dx8.cpp b/mp/src/materialsystem/stdshaders/worldvertexalpha_dx8.cpp
new file mode 100644
index 00000000..0ea139ee
--- /dev/null
+++ b/mp/src/materialsystem/stdshaders/worldvertexalpha_dx8.cpp
@@ -0,0 +1,113 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Header: $
+// $NoKeywords: $
+//=============================================================================//
+
+#include "BaseVSShader.h"
+
+#include "worldvertexalpha.inc"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+DEFINE_FALLBACK_SHADER( WorldVertexAlpha, WorldVertexAlpha_DX8 )
+
+BEGIN_VS_SHADER( WorldVertexAlpha_DX8, 
+			  "Help for WorldVertexAlpha_DX8" )
+
+	BEGIN_SHADER_PARAMS
+	END_SHADER_PARAMS
+
+	SHADER_INIT_PARAMS()
+	{
+		SET_FLAGS2( MATERIAL_VAR2_LIGHTING_LIGHTMAP );
+	}
+	SHADER_INIT
+	{
+		// Load the base texture here!
+		LoadTexture( BASETEXTURE );
+	}
+
+	SHADER_DRAW
+	{
+		if( g_pHardwareConfig->SupportsVertexAndPixelShaders() && !UsingEditor( params ) )
+		{
+			// NOTE: This is the DX8, Non-Hammer version.
+
+			SHADOW_STATE
+			{
+				// Base time lightmap (Need two texture stages)
+				pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
+
+				int fmt = VERTEX_POSITION;
+				pShaderShadow->VertexShaderVertexFormat( fmt, 2, 0, 0 );
+
+				pShaderShadow->EnableBlending( true );
+
+				// Looks backwards, but this is done so that lightmap alpha = 1 when only
+				// using 1 texture (needed for translucent displacements).
+				pShaderShadow->BlendFunc( SHADER_BLEND_ONE_MINUS_SRC_ALPHA, SHADER_BLEND_SRC_ALPHA );
+
+				worldvertexalpha_Static_Index vshIndex;
+				pShaderShadow->SetVertexShader( "WorldVertexAlpha", vshIndex.GetIndex() );
+
+				pShaderShadow->SetPixelShader( "WorldVertexAlpha" );
+				FogToFogColor();
+			}
+
+			DYNAMIC_STATE
+			{
+				// Bind the base texture (Stage0) and lightmap (Stage1)
+				BindTexture( SHADER_SAMPLER0, BASETEXTURE );
+				pShaderAPI->BindStandardTexture( SHADER_SAMPLER1, TEXTURE_LIGHTMAP );
+				EnablePixelShaderOverbright( 0, true, true );
+
+				worldvertexalpha_Dynamic_Index vshIndex;
+				vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
+				pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
+			}
+
+			Draw();
+		}
+		else
+		{
+			// NOTE: This is the DX7, Hammer version.
+			// FIXME: Gary - you need to write a proper non-fixed function shader for this.
+			SHADOW_STATE
+			{
+				SET_FLAGS2( MATERIAL_VAR2_LIGHTING_LIGHTMAP );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
+				pShaderShadow->OverbrightValue( SHADER_TEXTURE_STAGE1, OVERBRIGHT );
+
+				pShaderShadow->EnableBlending( true );
+
+				// Looks backwards, but this is done so that lightmap alpha = 1 when only
+				// using 1 texture (needed for translucent displacements).
+				pShaderShadow->BlendFunc( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
+//				pShaderShadow->BlendFunc( SHADER_BLEND_ONE_MINUS_SRC_ALPHA, SHADER_BLEND_SRC_ALPHA );
+
+				// Use vertex color for Hammer because it puts the blending alpha in the vertices.
+				unsigned int colorFlag = 0;
+				if( UsingEditor( params ) )
+				{
+					colorFlag |= SHADER_DRAW_COLOR;
+				}
+
+				pShaderShadow->DrawFlags( colorFlag | SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD1 | 
+					                      SHADER_DRAW_LIGHTMAP_TEXCOORD0 );
+			}
+			DYNAMIC_STATE
+			{
+				BindTexture( SHADER_SAMPLER1, BASETEXTURE );
+				pShaderAPI->BindStandardTexture( SHADER_SAMPLER0, TEXTURE_LIGHTMAP );
+			}
+
+			Draw();
+		}
+	}
+END_SHADER