forked from bartvdbraak/blender
e12c08e8d1
Apply clang format as proposed in T53211. For details on usage and instructions for migrating branches without conflicts, see: https://wiki.blender.org/wiki/Tools/ClangFormat
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/*
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* Copyright 2011-2015 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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CCL_NAMESPACE_BEGIN
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/* This kernel takes care of scene_intersect function.
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*
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* This kernel changes the ray_state of RAY_REGENERATED rays to RAY_ACTIVE.
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* This kernel processes rays of ray state RAY_ACTIVE
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* This kernel determines the rays that have hit the background and changes
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* their ray state to RAY_HIT_BACKGROUND.
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*/
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ccl_device void kernel_scene_intersect(KernelGlobals *kg)
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{
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/* Fetch use_queues_flag */
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char local_use_queues_flag = *kernel_split_params.use_queues_flag;
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ccl_barrier(CCL_LOCAL_MEM_FENCE);
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int ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0);
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if (local_use_queues_flag) {
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ray_index = get_ray_index(kg,
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ray_index,
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QUEUE_ACTIVE_AND_REGENERATED_RAYS,
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kernel_split_state.queue_data,
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kernel_split_params.queue_size,
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0);
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if (ray_index == QUEUE_EMPTY_SLOT) {
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return;
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}
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}
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/* All regenerated rays become active here */
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if (IS_STATE(kernel_split_state.ray_state, ray_index, RAY_REGENERATED)) {
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#ifdef __BRANCHED_PATH__
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if (kernel_split_state.branched_state[ray_index].waiting_on_shared_samples) {
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kernel_split_path_end(kg, ray_index);
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}
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else
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#endif /* __BRANCHED_PATH__ */
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{
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ASSIGN_RAY_STATE(kernel_split_state.ray_state, ray_index, RAY_ACTIVE);
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}
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}
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if (!IS_STATE(kernel_split_state.ray_state, ray_index, RAY_ACTIVE)) {
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return;
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}
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ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
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Ray ray = kernel_split_state.ray[ray_index];
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PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
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Intersection isect;
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bool hit = kernel_path_scene_intersect(kg, state, &ray, &isect, L);
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kernel_split_state.isect[ray_index] = isect;
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if (!hit) {
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/* Change the state of rays that hit the background;
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* These rays undergo special processing in the
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* background_bufferUpdate kernel.
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*/
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ASSIGN_RAY_STATE(kernel_split_state.ray_state, ray_index, RAY_HIT_BACKGROUND);
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}
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}
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CCL_NAMESPACE_END
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