40 lines
1.5 KiB
HLSL
40 lines
1.5 KiB
HLSL
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#ifndef POI_FUR
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#define POI_FUR
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UNITY_DECLARE_TEX2D_NOSAMPLER(_FurTexture); float4 _FurTexture_ST;
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UNITY_DECLARE_TEX2D_NOSAMPLER(_FurHeightMap); float4 _FurHeightMap_ST;
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UNITY_DECLARE_TEX2D_NOSAMPLER(_FurMask); float4 _FurMask_ST;
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float _FurAO;
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float4 _FurColor;
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float _FurLayers;
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float _FurMinDistance;
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float _FurMaxDistance;
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float _FurHeightMapMin;
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float _FurHeightMapMax;
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float _FurDebug;
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float _AoRampMin;
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float _AoRampMax;
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float _FurTipAlpha;
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float _FurFadeStart;
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//globals
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half furHeightMap;
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half furMask;
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void calculateFur()
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{
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furHeightMap = UNITY_SAMPLE_TEX2D_SAMPLER(_FurHeightMap, _MainTex, TRANSFORM_TEX(poiMesh.uv[0], _FurHeightMap)).x;
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furHeightMap = remap(furHeightMap, 0, _FurHeightMapMax, _FurHeightMapMin, 1);
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furMask = poiMax(UNITY_SAMPLE_TEX2D_SAMPLER(_FurMask, _MainTex, TRANSFORM_TEX(poiMesh.uv[0], _FurMask)).xyz);
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half3 furTexture = UNITY_SAMPLE_TEX2D_SAMPLER(_FurTexture, _MainTex, TRANSFORM_TEX(poiMesh.uv[0], _FurTexture));
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clip(furHeightMap - poiMesh.furAlpha);
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clip(furMask - poiMesh.furAlpha);
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albedo.rgb = lerp(mainTexture.rgb, furTexture.rgb * _FurColor.rgb, ceil(poiMesh.furAlpha));
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albedo.rgb *= lerp(1, smoothstep(_AoRampMin, _AoRampMax, furHeightMap), _FurAO * furMask);
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albedo.a *= smoothstep(1.01, _FurTipAlpha, remapClamped(poiMesh.furAlpha, _FurFadeStart, 1, 0, 1)) + _AlphaMod;
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}
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#endif
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