Full Template for ticket #1

Templates/Full/game/shaders/common/planarReflectBumpP.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 ConnectData
+{
+   float4 texCoord   : TEXCOORD0;
+   float2 tex2       : TEXCOORD1;
+};
+
+
+struct Fragout
+{
+   float4 col : COLOR0;
+};
+
+
+//-----------------------------------------------------------------------------
+// Fade edges of axis for texcoord passed in
+//-----------------------------------------------------------------------------
+float fadeAxis( float val )
+{
+   // Fades from 1.0 to 0.0 when less than 0.1
+   float fadeLow = saturate( val * 10.0 );
+   
+   // Fades from 1.0 to 0.0 when greater than 0.9
+   float fadeHigh = 1.0 - saturate( (val - 0.9) * 10.0 );
+
+   return fadeLow * fadeHigh;
+}
+
+
+//-----------------------------------------------------------------------------
+// Main                                                                        
+//-----------------------------------------------------------------------------
+Fragout main( ConnectData IN,
+              uniform sampler2D refractMap      : register(S1),
+              uniform sampler2D texMap          : register(S0),
+              uniform sampler2D bumpMap         : register(S2)
+)
+{
+   Fragout OUT;
+
+   float3 bumpNorm = tex2D( bumpMap, IN.tex2 ) * 2.0 - 1.0;
+   float2 offset = float2( bumpNorm.x, bumpNorm.y );
+   float4 texIndex = IN.texCoord;
+
+   // The fadeVal is used to "fade" the distortion at the edges of the screen.
+   // This is done so it won't sample the reflection texture out-of-bounds and create artifacts
+   // Note - this can be done more efficiently with a texture lookup
+   float fadeVal = fadeAxis( texIndex.x / texIndex.w ) * fadeAxis( texIndex.y / texIndex.w );
+
+   const float distortion = 0.2;
+   texIndex.xy += offset * distortion * fadeVal;
+
+   float4 reflectColor = tex2Dproj( refractMap, texIndex );
+   float4 diffuseColor = tex2D( texMap, IN.tex2 );
+
+   OUT.col = diffuseColor + reflectColor * diffuseColor.a;
+
+   return OUT;
+}