43 lines
1.9 KiB
HLSL
43 lines
1.9 KiB
HLSL
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#ifndef POI_ENVIRONMENTAL_RIM
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#define POI_ENVIRONMENTAL_RIM
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//enviro rim
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float _EnableEnvironmentalRim;
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POI_TEXTURE_NOSAMPLER(_RimEnviroMask);
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float _RimEnviroBlur;
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float _RimEnviroMinBrightness;
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float _RimEnviroWidth;
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float _RimEnviroSharpness;
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float _RimEnviroIntensity;
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float3 calculateEnvironmentalRimLighting()
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{
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float enviroRimAlpha = saturate(1 - smoothstep(min(_RimEnviroSharpness, _RimEnviroWidth), _RimEnviroWidth, poiCam.viewDotNormal));
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_RimEnviroBlur *= 1.7 - 0.7 * _RimEnviroBlur;
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float3 enviroRimColor = 0;
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float interpolator = unity_SpecCube0_BoxMin.w;
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UNITY_BRANCH
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if (interpolator < 0.99999)
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{
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//Probe 1
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float4 reflectionData0 = UNITY_SAMPLE_TEXCUBE_LOD(unity_SpecCube0, poiMesh.normals[1], _RimEnviroBlur * UNITY_SPECCUBE_LOD_STEPS);
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float3 reflectionColor0 = DecodeHDR(reflectionData0, unity_SpecCube0_HDR);
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//Probe 2
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float4 reflectionData1 = UNITY_SAMPLE_TEXCUBE_SAMPLER_LOD(unity_SpecCube1, unity_SpecCube0, poiMesh.normals[1], _RimEnviroBlur * UNITY_SPECCUBE_LOD_STEPS);
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float3 reflectionColor1 = DecodeHDR(reflectionData1, unity_SpecCube1_HDR);
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enviroRimColor = lerp(reflectionColor1, reflectionColor0, interpolator);
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}
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else
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{
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float4 reflectionData = UNITY_SAMPLE_TEXCUBE_LOD(unity_SpecCube0, poiMesh.normals[1], _RimEnviroBlur * UNITY_SPECCUBE_LOD_STEPS);
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enviroRimColor = DecodeHDR(reflectionData, unity_SpecCube0_HDR);
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}
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half enviroMask = poiMax(POI2D_SAMPLER_PAN(_RimEnviroMask, _MainTex, poiMesh.uv[_RimEnviroMaskUV], _RimEnviroMaskPan).rgb);
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return lerp(0, max(0, (enviroRimColor - _RimEnviroMinBrightness) * albedo.rgb), enviroRimAlpha).rgb * enviroMask * _RimEnviroIntensity;
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}
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#endif
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