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Data/UnitTests/RendererTest/Shaders/Texture2DReadbackUInt.ezShader
42 строки
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Sanakan8472
Vulkan Validation Fixes (#1271)
27 апр 2024, 21:25
Не верифицирован
27 апр 2024, 21:25
1a4a0c5
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[PLATFORMS] ALL [PERMUTATIONS] [RENDERSTATE] [VERTEXSHADER] #include "Texture.h" VS_OUT main(VS_IN Input) { VS_OUT RetVal; RetVal.pos = mul(mvp, float4(Input.pos, 1.0)); RetVal.texcoord0 = Input.texcoord0; return RetVal; } [PIXELSHADER] #include "Texture.h" Texture2D<uint4> DiffuseTexture; SamplerState PointClampSampler; float4 main(PS_IN Input) : SV_Target { float width, height, levels; DiffuseTexture.GetDimensions(0, width, height, levels); float4 color = DiffuseTexture.Load( int3(Input.texcoord0.x * width, Input.texcoord0.y * height, 0)); color /= float4(127,127,127,1); // Integer readback textures store stores values between 0 and 127 (see ReadbackInt.ezShader). // If we sample an int texture without an alpha channel it gets set to 1. // So we just assume that any alpha value > 1 comes from an actual alpha channel and needs to be normalized. // This is not correct if we would store 1 in the actual alpha channel but the test never does this so this works. if (color.a > 1) { color.a /= 127; } return color; }