diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2011-12-13 04:00:26 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2011-12-13 04:00:26 +0400 |
| commit | 57a39c3a0c2d8e0c7fd714c5046e9b8c65f67fc3 (patch) | |
| tree | d30f9433a79cda13f918d28fb7799869e5654bb4 /intern/cycles/util | |
| parent | 9e01abf7779a9272530d392767bdf9630544d519 (diff) | |
Fix #29594: cycles NaN values with window coordinates mapping.
Diffstat (limited to 'intern/cycles/util')
| -rw-r--r-- | intern/cycles/util/util_transform.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/intern/cycles/util/util_transform.h b/intern/cycles/util/util_transform.h index 8f4e2b46616..4bf3759dd75 100644 --- a/intern/cycles/util/util_transform.h +++ b/intern/cycles/util/util_transform.h @@ -41,8 +41,9 @@ __device_inline float3 transform(const Transform *t, const float3 a) { float4 b = make_float4(a.x, a.y, a.z, 1.0f); float3 c = make_float3(dot(t->x, b), dot(t->y, b), dot(t->z, b)); + float w = dot(t->w, b); - return c/dot(t->w, b); + return (w != 0.0f)? c/w: make_float3(0.0f, 0.0f, 0.0f); } __device_inline float3 transform_direction(const Transform *t, const float3 a) |