From 999d5a67852b5958b9361c9888734ebc889e4a22 Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Sun, 22 May 2016 22:35:47 +0200 Subject: Cycles CUDA: reduce stack memory by reusing ShaderData. 57% less for path and 48% less for branched path. --- intern/cycles/kernel/kernel_path_state.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'intern/cycles/kernel/kernel_path_state.h') diff --git a/intern/cycles/kernel/kernel_path_state.h b/intern/cycles/kernel/kernel_path_state.h index ef3765f7d89..e0e35d792ab 100644 --- a/intern/cycles/kernel/kernel_path_state.h +++ b/intern/cycles/kernel/kernel_path_state.h @@ -16,7 +16,12 @@ CCL_NAMESPACE_BEGIN -ccl_device_inline void path_state_init(KernelGlobals *kg, ccl_addr_space PathState *state, ccl_addr_space RNG *rng, int sample, ccl_addr_space Ray *ray) +ccl_device_inline void path_state_init(KernelGlobals *kg, + ShaderData *stack_sd, + ccl_addr_space PathState *state, + ccl_addr_space RNG *rng, + int sample, + ccl_addr_space Ray *ray) { state->flag = PATH_RAY_CAMERA|PATH_RAY_MIS_SKIP; @@ -41,7 +46,7 @@ ccl_device_inline void path_state_init(KernelGlobals *kg, ccl_addr_space PathSta if(kernel_data.integrator.use_volumes) { /* initialize volume stack with volume we are inside of */ - kernel_volume_stack_init(kg, ray, state->volume_stack); + kernel_volume_stack_init(kg, stack_sd, ray, state->volume_stack); /* seed RNG for cases where we can't use stratified samples */ state->rng_congruential = lcg_init(*rng + sample*0x51633e2d); } -- cgit v1.2.3