27 lines
1.5 KiB
GLSL
27 lines
1.5 KiB
GLSL
void NoiseCoatTextures(inout vec4 albedo, inout float smoothness, inout float emissive, inout float metalness, vec3 worldPos, float miplevel, float noiseVaryingM, float snowFactor) {
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float packSizeNT = 64.0;
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#ifndef SAFE_GENERATED_NORMALS
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vec2 noiseCoord = floor(vTexCoordL.xy / 32.0 * packSizeNT * atlasSize) / packSizeNT / 12.0;
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#else
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vec2 offsetR = max(vTexCoordAM.z, vTexCoordAM.w) * vec2(float(atlasSize.y) / float(atlasSize.x), 1.0);
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vec2 noiseCoord = floor(vTexCoordL.xy / 2.0 * packSizeNT / offsetR) / packSizeNT / 12.0;
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#endif
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if (noiseVaryingM < 999.0) {
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noiseCoord += 0.21 * (floor((worldPos.xz + cameraPosition.xz) + 0.001) + floor((worldPos.y + cameraPosition.y) + 0.001));
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} else {
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noiseVaryingM -= 1000.0;
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}
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float noiseTexture = texture2D(noisetex, noiseCoord).r;
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noiseTexture = noiseTexture * 0.75 + 0.625;
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float colorBrightness = 0.2126 * albedo.r + 0.7152 * albedo.g + 0.0722 * albedo.b;
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float noiseFactor = 0.7 * sqrt(1.0 - colorBrightness) * (1.0 - 0.5 * metalness)
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* (1.0 - 0.25 * smoothness) * max(1.0 - emissive, 0.0);
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#if defined SNOW_MODE && defined OVERWORLD
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noiseFactor *= 2.0 * max(0.5 - snowFactor, 0.0);
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#endif
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noiseFactor *= noiseVaryingM;
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noiseFactor *= max(1.0 - miplevel * 0.25, 0.0);
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noiseTexture = pow(noiseTexture, noiseFactor);
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albedo.rgb *= noiseTexture;
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smoothness = min(smoothness * sqrt(2.0 - noiseTexture), 1.0);
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} |