diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2017-08-23 04:57:27 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2017-09-28 16:18:43 +0300 |
| commit | 400e6f37b80dde3910b8d7a9d5e619b778a1c1ff (patch) | |
| tree | 61ecd35d2231c0f7585dc0148638de00819638b5 /intern/cycles/kernel/split | |
| parent | 9ddee885aea4d026bb0409a51a137706c95d318b (diff) | |
Cycles: reduce subsurface stack memory usage.
This is done by storing only a subset of PathRadiance, and by storing
direct light immediately in the main PathRadiance. Saves about 10% of
CUDA stack memory, and simplifies subsurface indirect ray code.
Diffstat (limited to 'intern/cycles/kernel/split')
4 files changed, 4 insertions, 6 deletions
diff --git a/intern/cycles/kernel/split/kernel_branched.h b/intern/cycles/kernel/split/kernel_branched.h index 2c390593ba1..2313feac089 100644 --- a/intern/cycles/kernel/split/kernel_branched.h +++ b/intern/cycles/kernel/split/kernel_branched.h @@ -87,7 +87,6 @@ ccl_device_inline bool kernel_split_branched_indirect_start_shared(KernelGlobals PathRadiance *inactive_L = &kernel_split_state.path_radiance[inactive_ray]; path_radiance_init(inactive_L, kernel_data.film.use_light_pass); - inactive_L->direct_throughput = L->direct_throughput; path_radiance_copy_indirect(inactive_L, L); ray_state[inactive_ray] = RAY_REGENERATED; @@ -176,7 +175,7 @@ ccl_device_noinline bool kernel_split_branched_path_surface_indirect_light_iter( num_samples, tp, ps, - L, + &L->state, bsdf_ray, sum_sample_weight)) { diff --git a/intern/cycles/kernel/split/kernel_do_volume.h b/intern/cycles/kernel/split/kernel_do_volume.h index 2975aa20004..491487f1230 100644 --- a/intern/cycles/kernel/split/kernel_do_volume.h +++ b/intern/cycles/kernel/split/kernel_do_volume.h @@ -65,7 +65,7 @@ ccl_device_noinline bool kernel_split_branched_path_volume_indirect_light_iter(K kernel_path_volume_connect_light(kg, sd, emission_sd, *tp, &branched_state->path_state, L); /* indirect light bounce */ - if(!kernel_path_volume_bounce(kg, sd, tp, ps, L, pray)) { + if(!kernel_path_volume_bounce(kg, sd, tp, ps, &L->state, pray)) { continue; } @@ -170,7 +170,7 @@ ccl_device void kernel_do_volume(KernelGlobals *kg) kernel_path_volume_connect_light(kg, sd, emission_sd, *throughput, state, L); /* indirect light bounce */ - if(kernel_path_volume_bounce(kg, sd, throughput, state, L, ray)) { + if(kernel_path_volume_bounce(kg, sd, throughput, state, &L->state, ray)) { ASSIGN_RAY_STATE(ray_state, ray_index, RAY_REGENERATED); } else { diff --git a/intern/cycles/kernel/split/kernel_indirect_subsurface.h b/intern/cycles/kernel/split/kernel_indirect_subsurface.h index 82bc2f01fd7..e9fe5552e8c 100644 --- a/intern/cycles/kernel/split/kernel_indirect_subsurface.h +++ b/intern/cycles/kernel/split/kernel_indirect_subsurface.h @@ -54,7 +54,6 @@ ccl_device void kernel_indirect_subsurface(KernelGlobals *kg) #endif if(IS_STATE(ray_state, ray_index, RAY_UPDATE_BUFFER)) { ccl_addr_space SubsurfaceIndirectRays *ss_indirect = &kernel_split_state.ss_rays[ray_index]; - kernel_path_subsurface_accum_indirect(ss_indirect, L); /* Trace indirect subsurface rays by restarting the loop. this uses less * stack memory than invoking kernel_path_indirect. diff --git a/intern/cycles/kernel/split/kernel_next_iteration_setup.h b/intern/cycles/kernel/split/kernel_next_iteration_setup.h index 4e0c966cca9..c3373174582 100644 --- a/intern/cycles/kernel/split/kernel_next_iteration_setup.h +++ b/intern/cycles/kernel/split/kernel_next_iteration_setup.h @@ -134,7 +134,7 @@ ccl_device void kernel_next_iteration_setup(KernelGlobals *kg, if(!kernel_data.integrator.branched || IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) { #endif /* Compute direct lighting and next bounce. */ - if(!kernel_path_surface_bounce(kg, sd, throughput, state, L, ray)) { + if(!kernel_path_surface_bounce(kg, sd, throughput, state, &L->state, ray)) { kernel_split_path_end(kg, ray_index); } #ifdef __BRANCHED_PATH__ |