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Diffstat (limited to 'intern/cycles/kernel/kernel_projection.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_projection.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_projection.h b/intern/cycles/kernel/kernel_projection.h index 9a2b0884a7e..cbb2442d1dc 100644 --- a/intern/cycles/kernel/kernel_projection.h +++ b/intern/cycles/kernel/kernel_projection.h @@ -57,6 +57,9 @@ ccl_device float3 spherical_to_direction(float theta, float phi) ccl_device float2 direction_to_equirectangular_range(float3 dir, float4 range) { + if(is_zero(dir)) + return make_float2(0.0f, 0.0f); + float u = (atan2f(dir.y, dir.x) - range.y) / range.x; float v = (acosf(dir.z / len(dir)) - range.w) / range.z; |