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