1 files changed, 76 insertions, 0 deletions
diff --git a/mp/src/materialsystem/stdshaders/cloud.cpp b/mp/src/materialsystem/stdshaders/cloud.cpp
new file mode 100644
index 00000000..810e6c4d
--- /dev/null
+++ b/mp/src/materialsystem/stdshaders/cloud.cpp
@@ -0,0 +1,76 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Header: $
+// $NoKeywords: $
+//=============================================================================//
+
+#include "shaderlib/cshader.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+BEGIN_SHADER( Cloud,
+			  "Help for Cloud" )
+	BEGIN_SHADER_PARAMS
+		SHADER_PARAM_OVERRIDE( BASETEXTURE, SHADER_PARAM_TYPE_TEXTURE, "shadertest/cloud", "cloud texture", 0 )
+		SHADER_PARAM( CLOUDALPHATEXTURE, SHADER_PARAM_TYPE_TEXTURE, "shadertest/cloudalpha", "cloud alpha texture" )
+		SHADER_PARAM( CLOUDSCALE, SHADER_PARAM_TYPE_VEC2, "[1 1]", "cloudscale" )
+		SHADER_PARAM( MASKSCALE, SHADER_PARAM_TYPE_VEC2, "[1 1]", "maskscale" )
+	END_SHADER_PARAMS
+	SHADER_INIT
+	{
+		LoadTexture( BASETEXTURE );
+		LoadTexture( CLOUDALPHATEXTURE );
+		if( !params[CLOUDSCALE]->IsDefined() )
+		{
+			params[CLOUDSCALE]->SetVecValue( 1.0f, 1.0f );
+		}
+		if( !params[MASKSCALE]->IsDefined() )
+		{
+			params[MASKSCALE]->SetVecValue( 1.0f, 1.0f );
+		}
+	}
+
+	SHADER_DRAW
+	{
+		if( g_pHardwareConfig->GetSamplerCount() >= 2 )
+		{
+			SHADOW_STATE
+			{
+				pShaderShadow->EnableDepthWrites( false );
+				pShaderShadow->EnableBlending( true );
+				if ( IS_FLAG_SET( MATERIAL_VAR_ADDITIVE ) )
+				{
+					pShaderShadow->BlendFunc( SHADER_BLEND_ONE, SHADER_BLEND_ONE );
+				}
+				else
+				{
+					pShaderShadow->BlendFunc( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
+				}
+				pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
+				pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
+
+				pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | 
+					SHADER_DRAW_TEXCOORD0 | SHADER_DRAW_TEXCOORD1 );
+				DefaultFog();
+			}
+			DYNAMIC_STATE
+			{
+				BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
+				BindTexture( SHADER_SAMPLER1, CLOUDALPHATEXTURE );
+
+				// handle scrolling of base texture
+				SetFixedFunctionTextureScaledTransform( MATERIAL_TEXTURE0,
+					BASETEXTURETRANSFORM, CLOUDSCALE );
+				SetFixedFunctionTextureScale( MATERIAL_TEXTURE1, MASKSCALE );
+			}
+			Draw();
+		}
+		else
+		{
+			ShaderWarning("Cloud not supported for single-texturing boards!\n");
+		}
+	}
+END_SHADER