37 lines
1.1 KiB
HLSL
37 lines
1.1 KiB
HLSL
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/******************************************************************************/
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/*
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Project - MudBun
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Publisher - Long Bunny Labs
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http://LongBunnyLabs.com
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Author - Ming-Lun "Allen" Chou
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http://AllenChou.net
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*/
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/******************************************************************************/
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#ifndef MUDBUN_ALPHA_THRESHOLD
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#define MUDBUN_ALPHA_THRESHOLD
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#include "Assets/MudBun/Shader/Render/ShaderCommon.cginc"
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void MudAlphaThreshold_float
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(
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float2 ScreenPos,
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UnityTexture2D DitherNoiseTexture,
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float DitherNoiseTextureSize,
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float AlphaIn,
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float AlphaCutoutThreshold,
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float Dithering,
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out float AlphaOut,
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out float AlphaThreshold
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)
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{
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float ditherThreshold = 0.0f;
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ditherThreshold = SAMPLE_TEXTURE2D(DitherNoiseTexture.tex, DitherNoiseTexture.samplerstate, ScreenPos / DitherNoiseTextureSize).r;
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ditherThreshold = 0.98f * (ditherThreshold - 0.5f) + 0.5f;
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AlphaOut = saturate(1.02f * (AlphaIn - 0.5f) + 0.5f);
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AlphaThreshold = lerp(AlphaCutoutThreshold, max(AlphaCutoutThreshold, ditherThreshold), Dithering);
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}
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#endif
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