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Cycles: Workaround for AMD GPU OpenCL compiler 

Fix for SSS in BPT.
This commit is contained in:
Hristo Gueorguiev 2017-05-05 12:57:01 +02:00
parent 5b6838129f
commit f3c3483242
1 changed files with 4 additions and 0 deletions
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4
intern/cycles/kernel/kernel_subsurface.h
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@ -479,6 +479,10 @@ ccl_device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, ccl_g
if(ss_isect.num_hits > 0) {
float3 origP = sd->P;
/* Workaround for AMD GPU OpenCL compiler. Most probably cache bypass issue. */
#if defined(__SPLIT_KERNEL__) && defined(__KERNEL_OPENCL_AMD__) && defined(__KERNEL_GPU__)
kernel_split_params.dummy_sd_flag = sd->flag;
#endif
/* setup new shading point */
shader_setup_from_subsurface(kg, sd, &ss_isect.hits[0], &ray);