diff options
| author | Lukas Stockner <lukas.stockner@freenet.de> | 2015-04-27 22:51:55 +0300 |
|---|---|---|
| committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2015-04-27 23:30:16 +0300 |
| commit | f478c2cfbd3861cfca1d1a019066d30a4410a1f7 (patch) | |
| tree | c769fa41a53a65f05867df0b78bd87eb06a788ef /intern/cycles/kernel/kernel_emission.h | |
| parent | 84836e8952451228aaef6f79fbfbca9c48c8346e (diff) | |
Cycles: Added support for light portals
This patch adds support for light portals: objects that help sampling the
environment light, therefore improving convergence. Using them tor other
lights in a unidirectional pathtracer is virtually useless.
The sampling is done with the area-preserving code already used for area lamps.
MIS is used both for combination of different portals and for combining portal-
and envmap-sampling.
The direction of portals is considered, they aren't used if the sampling point
is behind them.
Reviewers: sergey, dingto, #cycles
Reviewed By: dingto, #cycles
Subscribers: Lapineige, nutel, jtheninja, dsisco11, januz, vitorbalbio, candreacchio, TARDISMaker, lichtwerk, ace_dragon, marcog, mib2berlin, Tunge, lopataasdf, lordodin, sergey, dingto
Differential Revision: https://developer.blender.org/D1133
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 d3cbc5cff06..6c5a5fac8c5 100644 --- a/intern/cycles/kernel/kernel_emission.h +++ b/intern/cycles/kernel/kernel_emission.h @@ -254,7 +254,7 @@ ccl_device_noinline float3 indirect_background(KernelGlobals *kg, PathState *sta if(!(state->flag & PATH_RAY_MIS_SKIP) && res) { /* multiple importance sampling, get background light pdf for ray * direction, and compute weight with respect to BSDF pdf */ - float pdf = background_light_pdf(kg, ray->D); + float pdf = background_light_pdf(kg, ray->P, ray->D); float mis_weight = power_heuristic(state->ray_pdf, pdf); return L*mis_weight; |