diff options
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) |