1 files changed, 103 insertions, 0 deletions
diff --git a/mp/src/materialsystem/stdshaders/volume_clouds_vs20.fxc b/mp/src/materialsystem/stdshaders/volume_clouds_vs20.fxc
new file mode 100644
index 00000000..ccab2574
--- /dev/null
+++ b/mp/src/materialsystem/stdshaders/volume_clouds_vs20.fxc
@@ -0,0 +1,103 @@
+//========= Copyright � 1996-2006, Valve Corporation, All rights reserved. ============//
+
+// DYNAMIC: "COMPRESSED_VERTS"			"0..1"
+// DYNAMIC: "SKINNING"					"0..1"
+
+// Includes
+#include "common_vs_fxc.h"
+
+// Globals
+static const bool g_bSkinning = SKINNING ? true : false;
+
+const float3 g_vTime : register( SHADER_SPECIFIC_CONST_0 );
+#define g_flTime1x g_vTime.x
+#define g_flTime2x g_vTime.y
+#define g_flTime4x g_vTime.z
+
+const float4 cBaseTexCoordTransform[2]	:  register( SHADER_SPECIFIC_CONST_1 );
+
+// Structs
+struct VS_INPUT
+{
+	float4 vPos					: POSITION;		// Position
+	float4 vNormal				: NORMAL;		// Normal
+	float4 vBoneWeights			: BLENDWEIGHT;	// Skin weights
+	float4 vBoneIndices			: BLENDINDICES;	// Skin indices
+	float4 vTexCoord0			: TEXCOORD0;	// Base texture coordinates
+	float4 vUserData			: TANGENT;
+};
+
+struct VS_OUTPUT
+{
+    float4 vProjPosition			: POSITION; // Projection-space position
+	float4 v2DTangentViewVector01		: TEXCOORD0;
+	float4 vUv01						: TEXCOORD1;
+	float4 v2DTangentViewVector2_vUv2	: TEXCOORD2;
+};
+
+// Main
+VS_OUTPUT main( const VS_INPUT i )
+{
+	VS_OUTPUT o;
+
+	// Decompress compressed normal and tangent
+	float4 vObjPosition = i.vPos.xyzw;
+	float3 vObjNormal;
+	float4 vObjTangent;
+	DecompressVertex_NormalTangent( i.vNormal, i.vUserData, vObjNormal, vObjTangent );
+
+	// Transform the position
+	float3 vWorldPosition = { 0.0f, 0.0f, 0.0f };
+	float3 vWorldNormal = { 0.0f, 0.0f, 0.0f };
+	float3 vWorldTangent = { 0.0f, 0.0f, 0.0f };
+	float3 vWorldBinormal = { 0.0f, 0.0f, 0.0f };
+	SkinPositionNormalAndTangentSpace( g_bSkinning, vObjPosition, vObjNormal.xyz, vObjTangent.xyzw, i.vBoneWeights, i.vBoneIndices, vWorldPosition, vWorldNormal, vWorldTangent, vWorldBinormal );
+	vWorldNormal.xyz = normalize( vWorldNormal.xyz );
+	vWorldTangent.xyz = normalize( vWorldTangent.xyz );
+	vWorldBinormal.xyz = normalize( vWorldBinormal.xyz );
+
+	// Transform into projection space
+	float4 vProjPosition = mul( float4( vWorldPosition, 1.0f ), cViewProj );
+	o.vProjPosition = vProjPosition;
+
+	// View vector
+	float3 vWorldViewVector = normalize( vWorldPosition.xyz - cEyePos.xyz );
+	float3 vTangentViewVector = Vec3WorldToTangentNormalized( vWorldViewVector.xyz, vWorldNormal.xyz, vWorldTangent.xyz, vWorldBinormal.xyz );
+
+	// Texture coordinates
+	float4 mRotate;
+	float2 vBaseUv = i.vTexCoord0.xy;
+
+	// Inner layer
+	mRotate.x = cos( g_flTime4x );
+	mRotate.y = -sin( g_flTime4x );
+	mRotate.z = -mRotate.y;
+	mRotate.w = mRotate.x;
+	o.vUv01.xy = ( vBaseUv.xy - 0.5f ) * 1.0f;
+	o.vUv01.xy = float2( dot( o.vUv01.xy, mRotate.xy ), dot( o.vUv01.xy, mRotate.zw ) );
+	o.vUv01.xy += 0.5f;
+	o.v2DTangentViewVector01.xy = float2( dot( vTangentViewVector.xy, mRotate.xy ), dot( vTangentViewVector.xy, mRotate.zw ) );
+
+	// Middle layer
+	mRotate.x = cos( g_flTime2x );
+	mRotate.y = -sin( g_flTime2x );
+	mRotate.z = -mRotate.y;
+	mRotate.w = mRotate.x;
+	o.vUv01.wz = ( vBaseUv.xy - 0.5f ) * 1.0f;
+	o.vUv01.wz = float2( dot( o.vUv01.wz, mRotate.xy ), dot( o.vUv01.wz, mRotate.zw ) );
+	o.vUv01.wz += 0.5f;
+	o.v2DTangentViewVector01.wz = float2( dot( vTangentViewVector.xy, mRotate.xy ), dot( vTangentViewVector.xy, mRotate.zw ) );
+
+	// Outer layer
+	mRotate.x = cos( g_flTime1x );
+	mRotate.y = -sin( g_flTime1x );
+	mRotate.z = -mRotate.y;
+	mRotate.w = mRotate.x;
+	float2 vUv2 = ( vBaseUv.xy - 0.5f ) * 1.0f;
+	vUv2.xy = float2( dot( vUv2.xy, mRotate.xy ), dot( vUv2.xy, mRotate.zw ) );
+	vUv2.xy += 0.5f;
+	o.v2DTangentViewVector2_vUv2.wz = vUv2.xy;
+	o.v2DTangentViewVector2_vUv2.xy = float2( dot( vTangentViewVector.xy, mRotate.xy ), dot( vTangentViewVector.xy, mRotate.zw ) );
+
+	return o;
+}