77 lines
3 KiB
HLSL
77 lines
3 KiB
HLSL
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#ifndef METAL
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#define METAL
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samplerCUBE _CubeMap;
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float _SampleWorld;
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float _PurelyAdditive;
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sampler2D _MetallicMap; float4 _MetallicMap_ST;
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float _Metallic;
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sampler2D _SmoothnessMap; float4 _SmoothnessMap_ST;
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float _InvertSmoothness;
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float _Smoothness;
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float3 finalreflections;
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float metalicMap;
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float3 reflection;
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float roughness;
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float lighty_boy_uwu_var;
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void calculateReflections(float2 uv, float3 normal, float3 cameraToVert)
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{
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metalicMap = tex2D(_MetallicMap, TRANSFORM_TEX(uv, _MetallicMap)) * _Metallic;
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float _Smoothness_map_var = (tex2D(_SmoothnessMap, TRANSFORM_TEX(uv, _SmoothnessMap)));
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if (_InvertSmoothness == 1)
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{
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_Smoothness_map_var = 1 - _Smoothness_map_var;
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}
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_Smoothness_map_var *= _Smoothness;
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roughness = 1 - _Smoothness_map_var;
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roughness *= 1.7 - 0.7 * roughness;
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float3 reflectedDir = reflect(-cameraToVert, normal);
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float4 envSample = UNITY_SAMPLE_TEXCUBE_LOD(unity_SpecCube0, reflectedDir, roughness * UNITY_SPECCUBE_LOD_STEPS);
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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, reflectedDir, roughness * 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, reflectedDir, roughness * UNITY_SPECCUBE_LOD_STEPS);
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float3 reflectionColor1 = DecodeHDR(reflectionData1, unity_SpecCube1_HDR);
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reflection = 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, reflectedDir, roughness * UNITY_SPECCUBE_LOD_STEPS);
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reflection = DecodeHDR(reflectionData, unity_SpecCube0_HDR);
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}
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bool no_probe = unity_SpecCube0_HDR.a == 0 && envSample.a == 0;
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lighty_boy_uwu_var = 0;
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if (no_probe || _SampleWorld)
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{
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lighty_boy_uwu_var = 1;
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reflection = texCUBElod(_CubeMap, float4(reflectedDir, roughness * UNITY_SPECCUBE_LOD_STEPS));
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}
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}
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void applyReflections(inout float4 finalColor, float4 finalColorBeforeLighting)
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{
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#ifdef FORWARD_BASE_PASS
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finalreflections = reflection.rgb * lerp(finalColorBeforeLighting.rgb, 1, _PurelyAdditive);
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finalColor.rgb = finalColor.rgb * (1 - metalicMap);
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finalColor.rgb += (finalreflections * ((1 - roughness + metalicMap) / 2)) * lerp(1, poiLight.finalLighting, lighty_boy_uwu_var);
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#endif
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}
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void applyAdditiveReflectiveLighting(inout float4 finalColor)
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{
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finalColor *= (1 - metalicMap);
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}
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#endif
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