25 lines
730 B
GLSL
25 lines
730 B
GLSL
// Copyright (c) Wojciech Figat. All rights reserved.
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#include "./Flax/Common.hlsl"
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Texture2D Input : register(t0);
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Texture2D Distortion : register(t1);
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// Pixel shader for applying distortion pass results to the combined frame
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META_PS(true, FEATURE_LEVEL_ES2)
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float4 PS_ApplyDistortion(Quad_VS2PS input) : SV_Target
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{
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float4 accumDist = Distortion.Sample(SamplerPointClamp, input.TexCoord);
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float2 distOffset = (accumDist.rg - accumDist.ba) / 4.0f;
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float2 newTexCoord = input.TexCoord + distOffset;
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// Clamp around screen
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FLATTEN
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if (newTexCoord.x < 0 || newTexCoord.x > 1 || newTexCoord.y < 0 || newTexCoord.y > 1)
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{
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newTexCoord = input.TexCoord;
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}
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return Input.SampleLevel(SamplerPointClamp, newTexCoord, 0);
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}
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