diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-02-20 16:22:40 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-02-22 02:55:32 +0300 |
| commit | 2d81758aa650256d6b6ed283e43b6c35808ed205 (patch) | |
| tree | db336da6924982031bbcc30844b496d600fd407a /intern/cycles/kernel/svm/svm_closure.h | |
| parent | 84e92f9b3c50433221a4c30f3a14713d99680f3a (diff) | |
Cycles: better path termination for transparency.
We now continue transparent paths after diffuse/glossy/transmission/volume
bounces are exceeded. This avoids unexpected boundaries in volumes with
transparent boundaries. It is also required for MIS to work correctly with
transparent surfaces, as we also continue through these in shadow rays.
The main visible changes is that volumes will now be lit by the background
even at volume bounces 0, same as surfaces.
Fixes T53914 and T54103.
Diffstat (limited to 'intern/cycles/kernel/svm/svm_closure.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_closure.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/intern/cycles/kernel/svm/svm_closure.h b/intern/cycles/kernel/svm/svm_closure.h index 5398f36c267..24452c81fe0 100644 --- a/intern/cycles/kernel/svm/svm_closure.h +++ b/intern/cycles/kernel/svm/svm_closure.h @@ -449,7 +449,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float * } case CLOSURE_BSDF_TRANSPARENT_ID: { float3 weight = sd->svm_closure_weight * mix_weight; - bsdf_transparent_setup(sd, weight); + bsdf_transparent_setup(sd, weight, path_flag); break; } case CLOSURE_BSDF_REFLECTION_ID: @@ -728,7 +728,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float * * the throughput can blow up after multiple bounces. we * better figure out a way to skip backfaces from rays * spawned by transmission from the front */ - bsdf_transparent_setup(sd, make_float3(1.0f, 1.0f, 1.0f)); + bsdf_transparent_setup(sd, make_float3(1.0f, 1.0f, 1.0f), path_flag); } else { HairBsdf *bsdf = (HairBsdf*)bsdf_alloc(sd, sizeof(HairBsdf), weight); |