template project, first version

DirectXTK/Src/Shaders/Common.fxh

@@ -0,0 +1,66 @@
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved.
+//
+// http://go.microsoft.com/fwlink/?LinkId=248929
+// http://create.msdn.com/en-US/education/catalog/sample/stock_effects
+
+
+float ComputeFogFactor(float4 position)
+{
+    return saturate(dot(position, FogVector));
+}
+
+
+void ApplyFog(inout float4 color, float fogFactor)
+{
+    color.rgb = lerp(color.rgb, FogColor * color.a, fogFactor);
+}
+
+
+void AddSpecular(inout float4 color, float3 specular)
+{
+    color.rgb += specular * color.a;
+}
+
+
+float3 BiasX2(float3 x)
+{
+   return 2.0f * x - 1.0f;
+}
+
+
+struct CommonVSOutput
+{
+    float4 Pos_ps;
+    float4 Diffuse;
+    float3 Specular;
+    float  FogFactor;
+};
+
+
+CommonVSOutput ComputeCommonVSOutput(float4 position)
+{
+    CommonVSOutput vout;
+    
+    vout.Pos_ps = mul(position, WorldViewProj);
+    vout.Diffuse = DiffuseColor;
+    vout.Specular = 0;
+    vout.FogFactor = ComputeFogFactor(position);
+    
+    return vout;
+}
+
+
+#define SetCommonVSOutputParams \
+    vout.PositionPS = cout.Pos_ps; \
+    vout.Diffuse = cout.Diffuse; \
+    vout.Specular = float4(cout.Specular, cout.FogFactor);
+
+
+#define SetCommonVSOutputParamsNoFog \
+    vout.PositionPS = cout.Pos_ps; \
+    vout.Diffuse = cout.Diffuse;