diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-04-17 18:48:01 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-04-17 18:48:01 +0400 |
| commit | 45552a45950459e4bb83bc44d41eeaa5457bfdae (patch) | |
| tree | 5b4784f2187eac1bea08e013d4f7b6bf449fb946 /intern/cycles/kernel/kernel_random.h | |
| parent | cf0e457e524cfc9f496705de6cbf1e41c5118828 (diff) | |
Cycles: initialize LCG for sss and hair sampling without using the sobol sampler,
slightly faster but also fixes the u/v sampling dimensions not longer being at even
values which is needed for best results.
Diffstat (limited to 'intern/cycles/kernel/kernel_random.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_random.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/intern/cycles/kernel/kernel_random.h b/intern/cycles/kernel/kernel_random.h index e2eb8d5db83..fc33e226051 100644 --- a/intern/cycles/kernel/kernel_random.h +++ b/intern/cycles/kernel/kernel_random.h @@ -207,9 +207,9 @@ __device float lcg_step(uint *rng) return (float)*rng * (1.0f/(float)0xFFFFFFFF); } -__device uint lcg_init(float seed) +__device uint lcg_init(uint seed) { - uint rng = __float_as_int(seed); + uint rng = seed; lcg_step(&rng); return rng; } |