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#pragma vertex LightweightVertexCustom |
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#pragma fragment LightweightFragmentPBR |
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//#pragma glsl |
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//#pragma debug |
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#pragma glsl |
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#pragma debug |
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#define _GLOSSYREFLECTIONS_ON |
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float Vector1_Vector1_4B0AEC3F_Uniform; |
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o.fogCoord.yzw += max(half3(0, 0, 0), ShadeSH9(half4(normal, 1))); |
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#endif |
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UNITY_TRANSFER_FOG(o, o.hpos); |
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//UNITY_TRANSFER_FOG(o, o.hpos); |
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return o; |
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} |
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{ |
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o.Albedo = Color_Color_8256B4E6_Uniform; |
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o.Specular = Vector1_Vector1_5370E8F3_Uniform; |
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o.Metallic = Vector1_Vector1_5370E8F3_Uniform; |
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o.Smoothness = Vector1_Vector1_4B0AEC3F_Uniform; |
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} |
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half4 LightweightFragmentPBR(vOutput i) : SV_Target |
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{ |
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SurfacePBR o = InitializeSurfacePBR(); |
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DefineSurface(i, o); |
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DefineSurface(i, o); |
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//float2 uv = i.uv01.xy; |
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float2 lightmapUV = i.uv01.zw; |
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//float2 uv = i.uv01.xy; |
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float2 lightmapUV = i.uv01.zw; |
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half3 specColor; |
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half smoothness; |
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half oneMinusReflectivity; |
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//#ifdef _METALLIC_SETUP |
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//half3 diffColor = MetallicSetup(o, specColor, smoothness, oneMinusReflectivity); |
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//#else |
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half3 diffColor = SpecularSetup(o, specColor, smoothness, oneMinusReflectivity); |
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//#endif |
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half3 specColor; |
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half smoothness; |
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half oneMinusReflectivity; |
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//#ifdef _METALLIC_SETUP |
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half3 diffColor = MetallicSetup(o, specColor, smoothness, oneMinusReflectivity); |
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//#else |
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//half3 diffColor = SpecularSetup(o, specColor, smoothness, oneMinusReflectivity); |
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//#endif |
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diffColor = PreMultiplyAlpha(diffColor, o.Alpha, oneMinusReflectivity, /*out*/ o.Alpha); |
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diffColor = PreMultiplyAlpha(diffColor, o.Alpha, oneMinusReflectivity, /*out*/ o.Alpha); |
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// Roughness is (1.0 - smoothness)² |
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half perceptualRoughness = 1.0h - smoothness; |
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// Roughness is (1.0 - smoothness)² |
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half perceptualRoughness = 1.0h - smoothness; |
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// TODO - Actually handle normal |
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half3 normal; |
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CalculateNormal(i.normal, normal); |
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// TODO - Actually handle normal |
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half3 normal; |
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CalculateNormal(i.normal, normal); |
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// TODO: shader keyword for occlusion |
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// TODO: Reflection Probe blend support. |
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half3 reflectVec = reflect(-i.viewDir.xyz, normal); |
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// TODO: shader keyword for occlusion |
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// TODO: Reflection Probe blend support. |
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half3 reflectVec = reflect(-i.viewDir.xyz, normal); |
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UnityIndirect indirectLight = LightweightGI(lightmapUV, i.fogCoord.yzw, reflectVec, o.Occlusion, perceptualRoughness); |
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UnityIndirect indirectLight = LightweightGI(lightmapUV, i.fogCoord.yzw, reflectVec, o.Occlusion, perceptualRoughness); |
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// PBS |
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// grazingTerm = F90 |
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half grazingTerm = saturate(smoothness + (1 - oneMinusReflectivity)); |
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half fresnelTerm = Pow4(1.0 - saturate(dot(normal, i.viewDir.xyz))); |
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half3 color = LightweightBRDFIndirect(diffColor, specColor, indirectLight, perceptualRoughness * perceptualRoughness, grazingTerm, fresnelTerm); |
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half3 lightDirection; |
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// PBS |
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// grazingTerm = F90 |
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half grazingTerm = saturate(smoothness + (1 - oneMinusReflectivity)); |
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half fresnelTerm = Pow4(1.0 - saturate(dot(normal, i.viewDir.xyz))); |
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half3 color = LightweightBRDFIndirect(diffColor, specColor, indirectLight, perceptualRoughness * perceptualRoughness, grazingTerm, fresnelTerm); |
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half3 lightDirection; |
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#ifndef _MULTIPLE_LIGHTS |
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LightInput light; |
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INITIALIZE_MAIN_LIGHT(light); |
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half lightAtten = ComputeLightAttenuation(light, normal, i.posWS.xyz, lightDirection); |
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//#ifdef _SHADOWS |
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lightAtten *= ComputeShadowAttenuation(i.normal, i.posWS, _ShadowLightDirection.xyz); |
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//#endif |
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half NdotL = saturate(dot(normal, lightDirection)); |
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half3 radiance = light.color * (lightAtten * NdotL); |
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color += LightweightBDRF(diffColor, specColor, oneMinusReflectivity, perceptualRoughness, normal, lightDirection, i.viewDir.xyz) * radiance; |
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#else |
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//#ifdef _SHADOWS |
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half shadowAttenuation = ComputeShadowAttenuation(i.normal, i.posWS, _ShadowLightDirection.xyz); |
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//#endif |
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int pixelLightCount = min(globalLightCount.x, unity_LightIndicesOffsetAndCount.y); |
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for (int lightIter = 0; lightIter < pixelLightCount; ++lightIter) |
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{ |
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#ifndef _MULTIPLE_LIGHTS |
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int lightIndex = unity_4LightIndices0[lightIter]; |
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INITIALIZE_LIGHT(light, lightIndex); |
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INITIALIZE_MAIN_LIGHT(light); |
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lightAtten *= max(shadowAttenuation, half(lightIndex != _ShadowData.x)); |
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lightAtten *= ComputeShadowAttenuation(i.normal, i.posWS, _ShadowLightDirection.xyz); |
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color += LightweightBDRF(diffColor, specColor, oneMinusReflectivity, perceptualRoughness, normal, lightDirection, i.viewDir.xyz) * radiance; |
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#else |
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//#ifdef _SHADOWS |
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half shadowAttenuation = ComputeShadowAttenuation(i.normal, i.posWS, _ShadowLightDirection.xyz); |
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//#endif |
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int pixelLightCount = min(globalLightCount.x, unity_LightIndicesOffsetAndCount.y); |
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for (int lightIter = 0; lightIter < pixelLightCount; ++lightIter) |
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{ |
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LightInput light; |
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int lightIndex = unity_4LightIndices0[lightIter]; |
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INITIALIZE_LIGHT(light, lightIndex); |
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half lightAtten = ComputeLightAttenuation(light, normal, i.posWS.xyz, lightDirection); |
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//#ifdef _SHADOWS |
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lightAtten *= max(shadowAttenuation, half(lightIndex != _ShadowData.x)); |
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//#endif |
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half NdotL = saturate(dot(normal, lightDirection)); |
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half3 radiance = light.color * (lightAtten * NdotL); |
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color += LightweightBDRF(diffColor, specColor, oneMinusReflectivity, perceptualRoughness, normal, lightDirection, i.viewDir.xyz) * radiance; |
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} |
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#endif |
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color += LightweightBDRF(diffColor, specColor, oneMinusReflectivity, perceptualRoughness, normal, lightDirection, i.viewDir.xyz) * radiance; |
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} |
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#endif |
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color += o.Emission; |
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//UNITY_APPLY_FOG(i.fogCoord, color); |
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return OutputColor(color, o.Alpha); |
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color += o.Emission; |
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UNITY_APPLY_FOG(i.fogCoord, color); |
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return OutputColor(color, o.Alpha); |
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} |
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ENDCG |
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Matt Dean
7 年前