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Diffstat (limited to 'intern/cycles/kernel/kernel_shadow_catcher.h')
-rw-r--r--intern/cycles/kernel/kernel_shadow_catcher.h120
1 files changed, 0 insertions, 120 deletions
diff --git a/intern/cycles/kernel/kernel_shadow_catcher.h b/intern/cycles/kernel/kernel_shadow_catcher.h
deleted file mode 100644
index 9bed140b395..00000000000
--- a/intern/cycles/kernel/kernel_shadow_catcher.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright 2011-2021 Blender Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "kernel/integrator/integrator_state_util.h"
-#include "kernel/kernel_path_state.h"
-
-CCL_NAMESPACE_BEGIN
-
-/* Check whether current surface bounce is where path is to be split for the shadow catcher. */
-ccl_device_inline bool kernel_shadow_catcher_is_path_split_bounce(KernelGlobals kg,
- IntegratorState state,
- const int object_flag)
-{
-#ifdef __SHADOW_CATCHER__
- if (!kernel_data.integrator.has_shadow_catcher) {
- return false;
- }
-
- /* Check the flag first, avoiding fetches form global memory. */
- if ((object_flag & SD_OBJECT_SHADOW_CATCHER) == 0) {
- return false;
- }
- if (object_flag & SD_OBJECT_HOLDOUT_MASK) {
- return false;
- }
-
- const uint32_t path_flag = INTEGRATOR_STATE(state, path, flag);
-
- if ((path_flag & PATH_RAY_TRANSPARENT_BACKGROUND) == 0) {
- /* Split only on primary rays, secondary bounces are to treat shadow catcher as a regular
- * object. */
- return false;
- }
-
- if (path_flag & PATH_RAY_SHADOW_CATCHER_PASS) {
- return false;
- }
-
- return true;
-#else
- (void)object_flag;
- return false;
-#endif
-}
-
-/* Check whether the current path can still split. */
-ccl_device_inline bool kernel_shadow_catcher_path_can_split(KernelGlobals kg,
- ConstIntegratorState state)
-{
- if (INTEGRATOR_PATH_IS_TERMINATED) {
- return false;
- }
-
- const uint32_t path_flag = INTEGRATOR_STATE(state, path, flag);
-
- if (path_flag & PATH_RAY_SHADOW_CATCHER_HIT) {
- /* Shadow catcher was already hit and the state was split. No further split is allowed. */
- return false;
- }
-
- return (path_flag & PATH_RAY_TRANSPARENT_BACKGROUND) != 0;
-}
-
-/* NOTE: Leaves kernel scheduling information untouched. Use INIT semantic for one of the paths
- * after this function. */
-ccl_device_inline bool kernel_shadow_catcher_split(KernelGlobals kg,
- IntegratorState state,
- const int object_flags)
-{
-#ifdef __SHADOW_CATCHER__
-
- if (!kernel_shadow_catcher_is_path_split_bounce(kg, state, object_flags)) {
- return false;
- }
-
- /* The split is to be done. Mark the current state as such, so that it stops contributing to the
- * shadow catcher matte pass, but keeps contributing to the combined pass. */
- INTEGRATOR_STATE_WRITE(state, path, flag) |= PATH_RAY_SHADOW_CATCHER_HIT;
-
- /* Split new state from the current one. This new state will only track contribution of shadow
- * catcher objects ignoring non-catcher objects. */
- integrator_state_shadow_catcher_split(kg, state);
-
- return true;
-#else
- (void)object_flags;
- return false;
-#endif
-}
-
-#ifdef __SHADOW_CATCHER__
-
-ccl_device_forceinline bool kernel_shadow_catcher_is_matte_path(const uint32_t path_flag)
-{
- return (path_flag & PATH_RAY_SHADOW_CATCHER_HIT) == 0;
-}
-
-ccl_device_forceinline bool kernel_shadow_catcher_is_object_pass(const uint32_t path_flag)
-{
- return path_flag & PATH_RAY_SHADOW_CATCHER_PASS;
-}
-
-#endif /* __SHADOW_CATCHER__ */
-
-CCL_NAMESPACE_END