diff options
Diffstat (limited to 'intern/cycles/kernel/split/kernel_direct_lighting.h')
| -rw-r--r-- | intern/cycles/kernel/split/kernel_direct_lighting.h | 195 |
1 files changed, 95 insertions, 100 deletions
diff --git a/intern/cycles/kernel/split/kernel_direct_lighting.h b/intern/cycles/kernel/split/kernel_direct_lighting.h index ca79602c565..b2ca59d60cc 100644 --- a/intern/cycles/kernel/split/kernel_direct_lighting.h +++ b/intern/cycles/kernel/split/kernel_direct_lighting.h @@ -43,116 +43,111 @@ CCL_NAMESPACE_BEGIN ccl_device void kernel_direct_lighting(KernelGlobals *kg, ccl_local_param unsigned int *local_queue_atomics) { - if(ccl_local_id(0) == 0 && ccl_local_id(1) == 0) { - *local_queue_atomics = 0; - } - ccl_barrier(CCL_LOCAL_MEM_FENCE); - - char enqueue_flag = 0; - int ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0); - ray_index = get_ray_index(kg, ray_index, - QUEUE_ACTIVE_AND_REGENERATED_RAYS, - kernel_split_state.queue_data, - kernel_split_params.queue_size, - 0); - - if(IS_STATE(kernel_split_state.ray_state, ray_index, RAY_ACTIVE)) { - ccl_global PathState *state = &kernel_split_state.path_state[ray_index]; - ShaderData *sd = kernel_split_sd(sd, ray_index); - - /* direct lighting */ + if (ccl_local_id(0) == 0 && ccl_local_id(1) == 0) { + *local_queue_atomics = 0; + } + ccl_barrier(CCL_LOCAL_MEM_FENCE); + + char enqueue_flag = 0; + int ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0); + ray_index = get_ray_index(kg, + ray_index, + QUEUE_ACTIVE_AND_REGENERATED_RAYS, + kernel_split_state.queue_data, + kernel_split_params.queue_size, + 0); + + if (IS_STATE(kernel_split_state.ray_state, ray_index, RAY_ACTIVE)) { + ccl_global PathState *state = &kernel_split_state.path_state[ray_index]; + ShaderData *sd = kernel_split_sd(sd, ray_index); + + /* direct lighting */ #ifdef __EMISSION__ - bool flag = (kernel_data.integrator.use_direct_light && - (sd->flag & SD_BSDF_HAS_EVAL)); + bool flag = (kernel_data.integrator.use_direct_light && (sd->flag & SD_BSDF_HAS_EVAL)); # ifdef __BRANCHED_PATH__ - if(flag && kernel_data.integrator.branched) { - flag = false; - enqueue_flag = 1; - } -# endif /* __BRANCHED_PATH__ */ + if (flag && kernel_data.integrator.branched) { + flag = false; + enqueue_flag = 1; + } +# endif /* __BRANCHED_PATH__ */ # ifdef __SHADOW_TRICKS__ - if(flag && state->flag & PATH_RAY_SHADOW_CATCHER) { - flag = false; - enqueue_flag = 1; - } -# endif /* __SHADOW_TRICKS__ */ - - if(flag) { - /* Sample illumination from lights to find path contribution. */ - float light_u, light_v; - path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v); - float terminate = path_state_rng_light_termination(kg, state); - - LightSample ls; - if(light_sample(kg, - light_u, light_v, - sd->time, - sd->P, - state->bounce, - &ls)) { - - Ray light_ray; - light_ray.time = sd->time; - - BsdfEval L_light; - bool is_lamp; - if(direct_emission(kg, - sd, - AS_SHADER_DATA(&kernel_split_state.sd_DL_shadow[ray_index]), - &ls, - state, - &light_ray, - &L_light, - &is_lamp, - terminate)) - { - /* Write intermediate data to global memory to access from - * the next kernel. - */ - kernel_split_state.light_ray[ray_index] = light_ray; - kernel_split_state.bsdf_eval[ray_index] = L_light; - kernel_split_state.is_lamp[ray_index] = is_lamp; - /* Mark ray state for next shadow kernel. */ - enqueue_flag = 1; - } - } - } -#endif /* __EMISSION__ */ - } + if (flag && state->flag & PATH_RAY_SHADOW_CATCHER) { + flag = false; + enqueue_flag = 1; + } +# endif /* __SHADOW_TRICKS__ */ + + if (flag) { + /* Sample illumination from lights to find path contribution. */ + float light_u, light_v; + path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v); + float terminate = path_state_rng_light_termination(kg, state); + + LightSample ls; + if (light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) { + + Ray light_ray; + light_ray.time = sd->time; + + BsdfEval L_light; + bool is_lamp; + if (direct_emission(kg, + sd, + AS_SHADER_DATA(&kernel_split_state.sd_DL_shadow[ray_index]), + &ls, + state, + &light_ray, + &L_light, + &is_lamp, + terminate)) { + /* Write intermediate data to global memory to access from + * the next kernel. + */ + kernel_split_state.light_ray[ray_index] = light_ray; + kernel_split_state.bsdf_eval[ray_index] = L_light; + kernel_split_state.is_lamp[ray_index] = is_lamp; + /* Mark ray state for next shadow kernel. */ + enqueue_flag = 1; + } + } + } +#endif /* __EMISSION__ */ + } #ifdef __EMISSION__ - /* Enqueue RAY_SHADOW_RAY_CAST_DL rays. */ - enqueue_ray_index_local(ray_index, - QUEUE_SHADOW_RAY_CAST_DL_RAYS, - enqueue_flag, - kernel_split_params.queue_size, - local_queue_atomics, - kernel_split_state.queue_data, - kernel_split_params.queue_index); + /* Enqueue RAY_SHADOW_RAY_CAST_DL rays. */ + enqueue_ray_index_local(ray_index, + QUEUE_SHADOW_RAY_CAST_DL_RAYS, + enqueue_flag, + kernel_split_params.queue_size, + local_queue_atomics, + kernel_split_state.queue_data, + kernel_split_params.queue_index); #endif #ifdef __BRANCHED_PATH__ - /* Enqueue RAY_LIGHT_INDIRECT_NEXT_ITER rays - * this is the last kernel before next_iteration_setup that uses local atomics so we do this here - */ - ccl_barrier(CCL_LOCAL_MEM_FENCE); - if(ccl_local_id(0) == 0 && ccl_local_id(1) == 0) { - *local_queue_atomics = 0; - } - ccl_barrier(CCL_LOCAL_MEM_FENCE); - - ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0); - enqueue_ray_index_local(ray_index, - QUEUE_LIGHT_INDIRECT_ITER, - IS_STATE(kernel_split_state.ray_state, ray_index, RAY_LIGHT_INDIRECT_NEXT_ITER), - kernel_split_params.queue_size, - local_queue_atomics, - kernel_split_state.queue_data, - kernel_split_params.queue_index); - -#endif /* __BRANCHED_PATH__ */ + /* Enqueue RAY_LIGHT_INDIRECT_NEXT_ITER rays + * this is the last kernel before next_iteration_setup that uses local atomics so we do this here + */ + ccl_barrier(CCL_LOCAL_MEM_FENCE); + if (ccl_local_id(0) == 0 && ccl_local_id(1) == 0) { + *local_queue_atomics = 0; + } + ccl_barrier(CCL_LOCAL_MEM_FENCE); + + ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0); + enqueue_ray_index_local( + ray_index, + QUEUE_LIGHT_INDIRECT_ITER, + IS_STATE(kernel_split_state.ray_state, ray_index, RAY_LIGHT_INDIRECT_NEXT_ITER), + kernel_split_params.queue_size, + local_queue_atomics, + kernel_split_state.queue_data, + kernel_split_params.queue_index); + +#endif /* __BRANCHED_PATH__ */ } CCL_NAMESPACE_END |