diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-05-04 01:34:51 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-05-04 01:34:51 +0400 |
| commit | 838949c3e76eb140bb0f776fbbd0fd61fac08f49 (patch) | |
| tree | 5f59c6410a1ad65d9dee684368676f499907cf65 /intern/cycles/kernel/kernel_differential.h | |
| parent | 879859e0cc4e0176e1a054fa63e94c3e506a0a7c (diff) | |
Fix #35207: addition to previous fix to avoid OSL getting uninitialized
ray differentials for lighting, which could cause bad texture filtering
artifacts or performance.
Diffstat (limited to 'intern/cycles/kernel/kernel_differential.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_differential.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_differential.h b/intern/cycles/kernel/kernel_differential.h index 2190e04e231..c5332786f8b 100644 --- a/intern/cycles/kernel/kernel_differential.h +++ b/intern/cycles/kernel/kernel_differential.h @@ -86,5 +86,23 @@ __device void differential_dudv(differential *du, differential *dv, float3 dPdu, dv->dy = (dP.dy.y*dPdu.x - dP.dy.x*dPdu.y)*det; } +__device differential differential_zero() +{ + differential d; + d.dx = 0.0f; + d.dy = 0.0f; + + return d; +} + +__device differential3 differential3_zero() +{ + differential3 d; + d.dx = make_float3(0.0f, 0.0f, 0.0f); + d.dy = make_float3(0.0f, 0.0f, 0.0f); + + return d; +} + CCL_NAMESPACE_END |