From f5ab699fe8e0ad191fcb64c4fc89f34f84ec7e46 Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Sat, 29 Mar 2014 13:03:49 +0100 Subject: [PATCH] Fix cycles error for heterogenous volumes, causing double step size to be used. This gives longer render times due to smaller step size, double it to get something more like the previous behavior. --- intern/cycles/kernel/kernel_volume.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/intern/cycles/kernel/kernel_volume.h b/intern/cycles/kernel/kernel_volume.h index 31c601a7056..b72774be2fb 100644 --- a/intern/cycles/kernel/kernel_volume.h +++ b/intern/cycles/kernel/kernel_volume.h @@ -151,7 +151,7 @@ ccl_device void kernel_volume_shadow_heterogeneous(KernelGlobals *kg, PathState for(int i = 0; i < max_steps; i++) { /* advance to new position */ - float new_t = min(ray->t, t + random_jitter_offset + i * step); + float new_t = min(ray->t, random_jitter_offset + i * step); float3 new_P = ray->P + ray->D * new_t; float3 new_sigma_t; @@ -398,7 +398,7 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous(KernelGlo for(int i = 0; i < max_steps; i++) { /* advance to new position */ - float new_t = min(ray->t, t + random_jitter_offset + i * step); + float new_t = min(ray->t, random_jitter_offset + i * step); float3 new_P = ray->P + ray->D * new_t; VolumeShaderCoefficients new_coeff;