diff options
Diffstat (limited to 'intern')
-rw-r--r-- | intern/cycles/kernel/kernel_montecarlo.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/intern/cycles/kernel/kernel_montecarlo.h b/intern/cycles/kernel/kernel_montecarlo.h index ac40840133f..5c776e06547 100644 --- a/intern/cycles/kernel/kernel_montecarlo.h +++ b/intern/cycles/kernel/kernel_montecarlo.h @@ -86,7 +86,7 @@ ccl_device_inline void sample_uniform_cone( const float3 N, float angle, float randu, float randv, float3 *omega_in, float *pdf) { float zMin = cosf(angle); - float z = lerp(zMin, 1.0f, randu); + float z = zMin - zMin * randu + randu; float r = safe_sqrtf(1.0f - sqr(z)); float phi = M_2PI_F * randv; float x = r * cosf(phi); |