Cycles: Fix Burley's CDF truncation after recent radius fix
This is all not really ideal, but good enough for tonight. More thoughts and investigation tomorrow!
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@ -182,7 +182,7 @@ ccl_device void bssrdf_cubic_sample(ShaderClosure *sc, float xi, float *r, float
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* effective. Might need some further tweaks.
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*/
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#define BURLEY_TRUNCATE 30.0f
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#define BURLEY_TRUNCATE_CDF 0.973233f // cdf(BURLEY_TRUNCATE)
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#define BURLEY_TRUNCATE_CDF 0.999966f // cdf(BURLEY_TRUNCATE)
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ccl_device_inline float bssrdf_burley_fitting(float A)
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{
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