BansheeEngine/Data/Raw/Engine/Includes/SurfaceData.bslinc

mixin SurfaceData
{
	code
	{
		struct SurfaceData
		{
			float4 albedo;
			float4 worldNormal;
			float depth;
			float roughness;
			float metalness;
		};
		
#ifdef MSAA_COUNT
#if MSAA_COUNT > 1
		bool needsPerSampleShading(SurfaceData samples[MSAA_COUNT])
		{
			// Always shade all samples, otherwise there is visible aliasing. It could be enabled if HDR is not used.
			return true;
		
			float3 albedo = samples[0].albedo.xyz;
			float3 normal = samples[0].worldNormal.xyz;
			float depth = samples[0].depth;

			[unroll]
			for(int i = 1; i < MSAA_COUNT; i++)
			{
				float3 otherAlbedo = samples[i].albedo.xyz;
				float3 otherNormal = samples[i].worldNormal.xyz;
				float otherDepth = samples[i].depth;

				[branch]
				if((abs(depth - otherDepth) > 0.01f) || (dot(normal, otherNormal) < 0.99f) || (abs(dot(albedo - otherAlbedo, float3(1, 1, 1))) > 0.01f))
				{
					return true;
				}
			}
			
			return false;
		}
#endif
#endif
	};
};