From 26d3b873d5a80372771e11acfb70ab79c520eabb Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Mon, 30 Jan 2012 18:34:01 +0000 Subject: Fix #30009: cycles translucent BSDF + environment importance sampling not working correct. --- intern/cycles/kernel/kernel_emission.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'intern/cycles/kernel/kernel_emission.h') diff --git a/intern/cycles/kernel/kernel_emission.h b/intern/cycles/kernel/kernel_emission.h index 513a453b585..2243858a403 100644 --- a/intern/cycles/kernel/kernel_emission.h +++ b/intern/cycles/kernel/kernel_emission.h @@ -116,7 +116,8 @@ __device bool direct_emission(KernelGlobals *kg, ShaderData *sd, int lindex, if(ls.shader & SHADER_CAST_SHADOW) { /* setup ray */ - ray->P = ray_offset(sd->P, sd->Ng); + bool transmit = (dot(sd->Ng, ls.D) < 0.0f); + ray->P = ray_offset(sd->P, (transmit)? -sd->Ng: sd->Ng); if(ls.t == FLT_MAX) { /* distant light */ -- cgit v1.2.3