PCF in cubemap

Krzysztof Misan · 2016-01-20T16:28:47

I have question about PCF filtering on cubemap . So how can I implement 3x3 PCF in cubemap, am i doing it already(PCF) using SampleCmpLevelZero (as in 2d textures)? It looks like no PCF. Shadow factor code: float3 l=cam; float3 pos=shadowPosH-l; float dis=length(pos); float3 dir=normalize(pos); float projectedDistance = max(max(abs(pos.x), abs(pos.y)), abs(pos.z)); float a = shadowproj._33; float b = shadowproj._43; float z = projectedDistance * a + b; float dbDistance = z / projectedDistance; float percentLit = 0.0f; return shadowMap.SampleCmpLevelZero(samShadow,dir,dbDistance).r; Sampler: SamplerComparisonState samShadow { Filter = COMPARISON_MIN_MAG_LINEAR_MIP_POINT; AddressU = BORDER; AddressV = BORDER; AddressW = BORDER; BorderColor = float4(0.0f, 0.0f, 0.0f, 0.0f); ComparisonFunc = LESS_EQUAL; }; Sampler: SamplerComparisonState samShadow { Filter = COMPARISON_MIN_MAG_LINEAR_MIP_POINT; AddressU = BORDER; AddressV = BORDER; AddressW = BORDER; BorderColor = float4(0.0f, 0.0f, 0.0f, 0.0f); ComparisonFunc = LESS_EQUAL; };