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| author | Sergey Sharybin <sergey.vfx@gmail.com> | 2017-03-20 16:48:37 +0300 |
|---|---|---|
| committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2017-03-20 16:48:55 +0300 |
| commit | a201b99c5aaa7945bd0702c42987a60e3d70ee46 (patch) | |
| tree | 28d975eea8ebcb65ded3119fa69568a97bf5183d /intern/cycles/kernel/kernel_emission.h | |
| parent | 6b86b446d3b8a2ab40bed8fc7b5aacd583584d52 (diff) | |
Fix T50975: Cycles: Light sampling threshold inadvertently clamps negative lamps
Diffstat (limited to 'intern/cycles/kernel/kernel_emission.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_emission.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/intern/cycles/kernel/kernel_emission.h b/intern/cycles/kernel/kernel_emission.h index bc2d9604122..cf14a159e47 100644 --- a/intern/cycles/kernel/kernel_emission.h +++ b/intern/cycles/kernel/kernel_emission.h @@ -157,7 +157,7 @@ ccl_device_noinline bool direct_emission(KernelGlobals *kg, return false; if(kernel_data.integrator.light_inv_rr_threshold > 0.0f) { - float probability = max3(bsdf_eval_sum(eval)) * kernel_data.integrator.light_inv_rr_threshold; + float probability = max3(fabs(bsdf_eval_sum(eval))) * kernel_data.integrator.light_inv_rr_threshold; if(probability < 1.0f) { if(rand_terminate >= probability) { return false; |