diff options
| author | Sebastian Herholz <sherholz> | 2021-11-17 19:26:46 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brecht@blender.org> | 2021-11-17 20:03:56 +0300 |
| commit | d9bc8f189cc36cc55082cfd7ad8845e96eb062e3 (patch) | |
| tree | 0fe69c7ae01d5fa3dd68e5d719bae9a757f4ec83 /intern/cycles/scene/integrator.cpp | |
| parent | 063ad8635ec87a490d6fc02c937387a3c6673b08 (diff) | |
Cycles: add build option to enable a debugging feature for MIS
This patch adds a CMake option "WITH_CYCLES_DEBUG" which builds cycles with
a feature that allows debugging/selecting the direct-light sampling strategy.
The same option may later be used to add other debugging features that could
affect performance in release builds.
The three options are:
* Forward path tracing (e.g., via BSDF or phase function)
* Next-event estimation
* Multiple importance sampling combination of the previous two methods
Such a feature is useful for debugging light different sampling, evaluation,
and pdf methods (e.g., for light sources and BSDFs).
Differential Revision: https://developer.blender.org/D13152
Diffstat (limited to 'intern/cycles/scene/integrator.cpp')
| -rw-r--r-- | intern/cycles/scene/integrator.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/intern/cycles/scene/integrator.cpp b/intern/cycles/scene/integrator.cpp index 737db8b98d5..9216a8ae615 100644 --- a/intern/cycles/scene/integrator.cpp +++ b/intern/cycles/scene/integrator.cpp @@ -52,6 +52,18 @@ NODE_DEFINE(Integrator) SOCKET_INT(transparent_min_bounce, "Transparent Min Bounce", 0); SOCKET_INT(transparent_max_bounce, "Transparent Max Bounce", 7); +#ifdef WITH_CYCLES_DEBUG + static NodeEnum direct_light_sampling_type_enum; + direct_light_sampling_type_enum.insert("multiple_importance_sampling", + DIRECT_LIGHT_SAMPLING_MIS); + direct_light_sampling_type_enum.insert("forward_path_tracing", DIRECT_LIGHT_SAMPLING_FORWARD); + direct_light_sampling_type_enum.insert("next_event_estimation", DIRECT_LIGHT_SAMPLING_NEE); + SOCKET_ENUM(direct_light_sampling_type, + "Direct Light Sampling Type", + direct_light_sampling_type_enum, + DIRECT_LIGHT_SAMPLING_MIS); +#endif + SOCKET_INT(ao_bounces, "AO Bounces", 0); SOCKET_FLOAT(ao_factor, "AO Factor", 0.0f); SOCKET_FLOAT(ao_distance, "AO Distance", FLT_MAX); @@ -171,6 +183,12 @@ void Integrator::device_update(Device *device, DeviceScene *dscene, Scene *scene kintegrator->ao_bounces_factor = ao_factor; kintegrator->ao_additive_factor = ao_additive_factor; +#ifdef WITH_CYCLES_DEBUG + kintegrator->direct_light_sampling_type = direct_light_sampling_type; +#else + kintegrator->direct_light_sampling_type = DIRECT_LIGHT_SAMPLING_MIS; +#endif + /* Transparent Shadows * We only need to enable transparent shadows, if we actually have * transparent shaders in the scene. Otherwise we can disable it |