samplerCubeShadow and texture offset
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Irbis
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Published on 2012-10-29T13:19:21Z
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2012/10/29
17:25 UTC
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I use sampler2DShadow when accessing a single shadow map. I create PCF in this way:
result += textureProjOffset(ShadowSampler, ShadowCoord, ivec2(-1,-1));
result += textureProjOffset(ShadowSampler, ShadowCoord, ivec2(-1,1));
result += textureProjOffset(ShadowSampler, ShadowCoord, ivec2(1,1));
result += textureProjOffset(ShadowSampler, ShadowCoord, ivec2(1,-1));
result = result * 0.25;
For a cube map I use samplerCubeShadow:
result = texture(ShadowCubeSampler, vec4(normalize(position), depth));
How to adopt above PCF when accessing a cube map ?
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