Steve Pham
38261d0800
* Updated all copyright headers to split the longer original copyright line into 2 shorter lines Signed-off-by: Steve Pham <spham@amazon.com>
27 lines
1010 B
Plaintext
27 lines
1010 B
Plaintext
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// 7-tap Gaussian Kernel (Sigma 1.1)
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static const uint GaussianKernelSize = 7;
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static const int2 TexelOffsetsV[GaussianKernelSize] = {{0, -3}, {0, -2}, {0, -1}, {0, 0}, {0, 1}, {0, 2}, {0, 3}};
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static const int2 TexelOffsetsH[GaussianKernelSize] = {{-3, 0}, {-2, 0}, {-1, 0}, {0, 0}, {1, 0}, {2, 0}, {3, 0}};
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static const float TexelWeights[GaussianKernelSize] = {0.010805f, 0.074929f, 0.238727f, 0.351078f, 0.238727f, 0.074929f, 0.010805f};
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float3 GaussianFilter(uint2 screenCoords, int2 texelOffsets[GaussianKernelSize], RWTexture2D<float4> inputImage)
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{
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float3 result = float3(0.0f, 0.0f, 0.0f);
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[unroll]
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for (uint i = 0; i < GaussianKernelSize; ++i)
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{
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result += inputImage[screenCoords + texelOffsets[i]].rgb * TexelWeights[i];
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}
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return result;
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}
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