diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-08-24 19:02:08 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-08-24 19:02:08 +0400 |
| commit | 722d0d92adefbeca2fb8326ce7bf217530d7b59c (patch) | |
| tree | dd5c39f410d87917d118f9c40d3d9f8f47f394a4 /intern/cycles/kernel/kernel_subsurface.h | |
| parent | 25ffb79a0b4861293c08a8230fc45fb72a7f230e (diff) | |
Cycles: reduce noise using regular path tracing + subsurface scattering with
new cubic and gaussian falloff. Like the branched path tracer, this will now
shade all intersection points instead of using one at random.
Diffstat (limited to 'intern/cycles/kernel/kernel_subsurface.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_subsurface.h | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/intern/cycles/kernel/kernel_subsurface.h b/intern/cycles/kernel/kernel_subsurface.h index 7127775669b..5eb641f5af4 100644 --- a/intern/cycles/kernel/kernel_subsurface.h +++ b/intern/cycles/kernel/kernel_subsurface.h @@ -221,20 +221,18 @@ __device int subsurface_scatter_multi_step(KernelGlobals *kg, ShaderData *sd, Sh disk_N = sd->Ng; make_orthonormals(disk_N, &disk_T, &disk_B); - if(disk_u < 0.5f) { + if(sd->randb_closure < 0.5f) { pick_pdf_N = 0.5f; pick_pdf_T = 0.25f; pick_pdf_B = 0.25f; - disk_u *= 2.0f; } - else if(disk_u < 0.75f) { + else if(sd->randb_closure < 0.75f) { float3 tmp = disk_N; disk_N = disk_T; disk_T = tmp; pick_pdf_N = 0.25f; pick_pdf_T = 0.5f; pick_pdf_B = 0.25f; - disk_u = (disk_u - 0.5f)*4.0f; } else { float3 tmp = disk_N; @@ -243,7 +241,6 @@ __device int subsurface_scatter_multi_step(KernelGlobals *kg, ShaderData *sd, Sh pick_pdf_N = 0.25f; pick_pdf_T = 0.25f; pick_pdf_B = 0.5f; - disk_u = (disk_u - 0.75f)*4.0f; } /* sample point on disk */ @@ -323,20 +320,18 @@ __device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, disk_N = sd->Ng; make_orthonormals(disk_N, &disk_T, &disk_B); - if(disk_u < 0.5f) { + if(sd->randb_closure < 0.5f) { pick_pdf_N = 0.5f; pick_pdf_T = 0.25f; pick_pdf_B = 0.25f; - disk_u *= 2.0f; } - else if(disk_u < 0.75f) { + else if(sd->randb_closure < 0.75f) { float3 tmp = disk_N; disk_N = disk_T; disk_T = tmp; pick_pdf_N = 0.25f; pick_pdf_T = 0.5f; pick_pdf_B = 0.25f; - disk_u = (disk_u - 0.5f)*4.0f; } else { float3 tmp = disk_N; @@ -345,7 +340,6 @@ __device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, pick_pdf_N = 0.25f; pick_pdf_T = 0.25f; pick_pdf_B = 0.5f; - disk_u = (disk_u - 0.75f)*4.0f; } /* sample point on disk */ |