Colored AO

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Core.hlsl

     ApplyFogColor(color, unity_FogColor.rgb, fogFactor);
 }
 
-void ApplySSAO(inout half occlusion, float4 texcoord)
+void ApplySSAO(inout half3 occlusion, float4 texcoord)
 {
     half ssao = 1.0 - SAMPLE_TEXTURE2D(_AmbientOcclusion, sampler_AmbientOcclusion, texcoord.xy / texcoord.w);
     

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurface.hlsl

     half  smoothness;
     half3 normalTS;
     half3 emission;
-    half  occlusion;
+    half3  occlusion; //TLS: Colored AO.
     half  alpha;
 };
 

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Lighting.hlsl

     return SampleSHPixel(sampleData.xyz, normalWS);
 }
 
-half3 GlossyEnvironmentReflection(half3 reflectVector, half perceptualRoughness, half occlusion)
+half3 GlossyEnvironmentReflection(half3 reflectVector, half perceptualRoughness, half3 occlusion)
 {
 #if !defined(_GLOSSYREFLECTIONS_OFF)
     half mip = PerceptualRoughnessToMipmapLevel(perceptualRoughness);
     return min(bakedGI, realtimeShadow);
 }
 
-half3 GlobalIllumination(BRDFData brdfData, half3 bakedGI, half occlusion, half3 normalWS, half3 viewDirectionWS)
+half3 GlobalIllumination(BRDFData brdfData, half3 bakedGI, half3 occlusion, half3 normalWS, half3 viewDirectionWS)
 {
     half3 reflectVector = reflect(-viewDirectionWS, normalWS);
     half fresnelTerm = Pow4(1.0 - saturate(dot(normalWS, viewDirectionWS)));
 //       Used by ShaderGraph and others builtin renderers                    //
 ///////////////////////////////////////////////////////////////////////////////
 half4 LightweightFragmentPBR(InputData inputData, half3 albedo, half metallic, half3 specular,
-    half smoothness, half occlusion, half3 emission, half alpha)
+    half smoothness, half3 occlusion, half3 emission, half alpha)
 {
     BRDFData brdfData;
     InitializeBRDFData(albedo, metallic, specular, smoothness, alpha, brdfData);

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/Subsurface/Lighting.hlsl

     return SampleSHPixel(sampleData.xyz, normalWS);
 }
 
-half3 GlossyEnvironmentReflection(half3 reflectVector, half perceptualRoughness, half occlusion)
+half3 GlossyEnvironmentReflection(half3 reflectVector, half perceptualRoughness, half3 occlusion)
 {
 #if !defined(_GLOSSYREFLECTIONS_OFF)
     half mip = PerceptualRoughnessToMipmapLevel(perceptualRoughness);
     return min(bakedGI, realtimeShadow);
 }
 
-half3 GlobalIllumination(BRDFData brdfData, half3 bakedGI, half occlusion, half3 normalWS, half3 viewDirectionWS)
+half3 GlobalIllumination(BRDFData brdfData, half3 bakedGI, half3 occlusion, half3 normalWS, half3 viewDirectionWS)
 {
     half3 reflectVector = reflect(-viewDirectionWS, normalWS);
     half fresnelTerm = Pow4(1.0 - saturate(dot(normalWS, viewDirectionWS)));
 //       Used by ShaderGraph and others builtin renderers                    //
 ///////////////////////////////////////////////////////////////////////////////
 half4 LightweightFragmentPBR(InputData inputData, half3 albedo, half metallic, half3 specular,
-    half smoothness, half occlusion, half3 emission, half alpha, half curvature)
+    half smoothness, half3 occlusion, half3 emission, half alpha, half curvature)
 {
     BRDFData brdfData;
     InitializeBRDFData(albedo, metallic, specular, smoothness, alpha, curvature, brdfData);