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71f266059a
This commit imports the C# engine code and game files, excluding C++ source code. [Source-Commit: ceb3d758046e50faa6258bc3b658a30c97743268]
39 lines
1.6 KiB
HLSL
39 lines
1.6 KiB
HLSL
#ifndef DYNAMIC_REFLECTIONS_HLSL
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#define DYNAMIC_REFLECTIONS_HLSL
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//-------------------------------------------------------------------------------------------------------------------------------------------------------------
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int ReflectionColorIndex < Attribute("ReflectionColorIndex" ); Default(-1); >;
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//-------------------------------------------------------------------------------------------------------------------------------------------------------------
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// Accessor for the result of dynamic reflections, whether they are SSR or eventually Raytraced Reflections
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//-------------------------------------------------------------------------------------------------------------------------------------------------------------
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class DynamicReflections
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{
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static float4 Sample(float2 ScreenPosition, float Roughness = 0.0f)
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{
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if (!IsEnabled())
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return 0;
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Texture2D ReflectionColor = Bindless::GetTexture2D( ReflectionColorIndex );
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// If the texture has mips, we can sample it at a specific level based on roughness.
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// Eg Planar Reflections with mip chain.
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int2 nDim;
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int nLevels;
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ReflectionColor.GetDimensions(0, nDim.x, nDim.y, nLevels);
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float flLevel = ( Roughness * (nLevels - 1) );
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// Sample the reflection color at the specified screen position and roughness level
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return ReflectionColor.SampleLevel( g_sTrilinearClamp, ScreenPosition * g_vInvViewportSize, flLevel ); // Could probably use SampleScreenSsMSAA
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}
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static bool IsEnabled()
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{
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return ReflectionColorIndex != -1;
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}
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};
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#endif // DYNAMIC_REFLECTIONS_HLSL |