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| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2014-03-29 16:03:49 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2014-03-29 16:03:49 +0400 |
| commit | 47e7acf2313694460297ddfdac1d2a4a851b75ed (patch) | |
| tree | e257e18ec4b16caf1aa31e5cb57af23746525ff5 /intern/cycles/kernel/kernel_montecarlo.h | |
| parent | 7cb28f41f9814824455aedce876bc99184be52f0 (diff) | |
Cycles code refactor: minor refactoring and comments for volume code.
Diffstat (limited to 'intern/cycles/kernel/kernel_montecarlo.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_montecarlo.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_montecarlo.h b/intern/cycles/kernel/kernel_montecarlo.h index 92f3420a218..af7b727c1ba 100644 --- a/intern/cycles/kernel/kernel_montecarlo.h +++ b/intern/cycles/kernel/kernel_montecarlo.h @@ -131,6 +131,11 @@ ccl_device float power_heuristic_3(float a, float b, float c) return (a*a)/(a*a + b*b + c*c); } +ccl_device float max_heuristic(float a, float b) +{ + return (a > b)? 1.0f: 0.0f; +} + /* distribute uniform xy on [0,1] over unit disk [-1,1], with concentric mapping * to better preserve stratification for some RNG sequences */ ccl_device float2 concentric_sample_disk(float u1, float u2) |