Full Template for ticket #1

Templates/Full/game/shaders/common/cloudLayerV.hlsl

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+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// Structures                                                                  
+//-----------------------------------------------------------------------------
+
+struct CloudVert
+{
+   float4 pos        : POSITION;
+   float3 normal     : NORMAL;
+   float3 binormal   : BINORMAL;
+   float3 tangent    : TANGENT;
+   float2 uv0        : TEXCOORD0;
+};
+
+struct ConnectData
+{
+   float4 hpos                : POSITION;   
+   float4 texCoord12          : TEXCOORD0;
+   float4 texCoord34          : TEXCOORD1;   
+   float3 vLightTS            : TEXCOORD2;   // light vector in tangent space, denormalized
+   float3 vViewTS             : TEXCOORD3;   // view vector in tangent space, denormalized
+   float  worldDist           : TEXCOORD4;
+};
+
+//-----------------------------------------------------------------------------
+// Uniforms                                                                        
+//-----------------------------------------------------------------------------
+uniform float4x4  modelview;
+uniform float3    eyePosWorld;
+uniform float3    sunVec;
+uniform float2    texOffset0;
+uniform float2    texOffset1;
+uniform float2    texOffset2;
+uniform float3    texScale;
+
+//-----------------------------------------------------------------------------
+// Main                                                                        
+//-----------------------------------------------------------------------------
+ConnectData main( CloudVert IN )
+{   
+   ConnectData OUT;
+
+   OUT.hpos = mul(modelview, IN.pos);
+   
+   // Offset the uv so we don't have a seam directly over our head.
+   float2 uv = IN.uv0 + float2( 0.5, 0.5 );
+   
+   OUT.texCoord12.xy = uv * texScale.x;
+   OUT.texCoord12.xy += texOffset0;
+   
+   OUT.texCoord12.zw = uv * texScale.y;
+   OUT.texCoord12.zw += texOffset1;
+   
+   OUT.texCoord34.xy = uv * texScale.z;
+   OUT.texCoord34.xy += texOffset2;
+   
+   OUT.texCoord34.z = IN.pos.z;
+   OUT.texCoord34.w = 0.0;
+
+   // Transform the normal, tangent and binormal vectors from object space to 
+   // homogeneous projection space:
+   float3 vNormalWS   = -IN.normal; 
+   float3 vTangentWS  = -IN.tangent;
+   float3 vBinormalWS = -IN.binormal;
+
+   // Compute position in world space:
+   float4 vPositionWS = IN.pos + float4( eyePosWorld, 1 ); //mul( IN.pos, objTrans );
+
+   // Compute and output the world view vector (unnormalized):
+   float3 vViewWS = eyePosWorld - vPositionWS.xyz;
+
+   // Compute denormalized light vector in world space:
+   float3 vLightWS = -sunVec;
+
+   // Normalize the light and view vectors and transform it to the tangent space:
+   float3x3 mWorldToTangent = float3x3( vTangentWS, vBinormalWS, vNormalWS );
+
+   // Propagate the view and the light vectors (in tangent space):
+   OUT.vLightTS = mul( vLightWS, mWorldToTangent );
+   OUT.vViewTS  = mul( mWorldToTangent, vViewWS  );
+   
+   OUT.worldDist = saturate( pow( max( IN.pos.z, 0 ), 2 ) );
+
+   return OUT;
+}