44 lines
1.0 KiB
HLSL
44 lines
1.0 KiB
HLSL
#ifndef _GRADIENTDISSOLVE
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#define _GRADIENTDISSOLVE
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void GradientedDissolve_float(
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UnityTexture2D NoiseTexture, UnityTexture2D GUITexture,
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UnitySamplerState NoiseSS,
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half2 UV, float noiseScale,
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half NoisePow, half Width, half Th,
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out half4 _out
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)
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{
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half noise = SAMPLE_TEXTURE2D(NoiseTexture, NoiseSS, UV * noiseScale).r;
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noise = pow(noise, NoisePow);
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//noise = noise * (1-UV.x);
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//Th = 1;
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noise += Th;
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_out = 0;
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half4 guiSample = SAMPLE_TEXTURE2D_LOD(GUITexture, NoiseSS, UV, 0);
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if (noise >= 1)
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{
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noise = 1.0;
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_out = guiSample;
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//if ((noise + Th Width ) >= 1.0)
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//{
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//}
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//_out = half4(1,1,1,1);
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}
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else if ((noise + Width ) >= 1.0)
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{
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half4 guiSampleLow = SAMPLE_TEXTURE2D_LOD(GUITexture, NoiseSS, UV, 3);
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noise = (noise + Width - 1.0)/Width;
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_out = lerp(guiSampleLow, guiSampleLow, noise);
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//_out = half4(0,0,0,noise);
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}
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_out.a *= saturate(noise) * pow(Th, 0.3);
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}
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#endif
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