forked from bartvdbraak/blender
d7d40745fa
* Split render/ into scene/ and session/. The scene/ folder now contains the scene and its nodes. The session/ folder contains the render session and associated data structures like drivers and render buffers. * Move top level kernel headers into new folders kernel/camera/, kernel/film/, kernel/light/, kernel/sample/, kernel/util/ * Move integrator related kernel headers into kernel/integrator/ * Move OSL shaders from kernel/shaders/ to kernel/osl/shaders/ For patches and branches, git merge and rebase should be able to detect the renames and move over code to the right file.
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
/*
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* Copyright 2021 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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#include "integrator/path_trace_tile.h"
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#include "integrator/pass_accessor_cpu.h"
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#include "integrator/path_trace.h"
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#include "scene/film.h"
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#include "scene/pass.h"
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#include "scene/scene.h"
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#include "session/buffers.h"
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CCL_NAMESPACE_BEGIN
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PathTraceTile::PathTraceTile(PathTrace &path_trace)
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: OutputDriver::Tile(path_trace.get_render_tile_offset(),
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path_trace.get_render_tile_size(),
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path_trace.get_render_size(),
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path_trace.get_render_tile_params().layer,
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path_trace.get_render_tile_params().view),
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path_trace_(path_trace),
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copied_from_device_(false)
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{
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}
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bool PathTraceTile::get_pass_pixels(const string_view pass_name,
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const int num_channels,
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float *pixels) const
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{
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/* NOTE: The code relies on a fact that session is fully update and no scene/buffer modification
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* is happening while this function runs. */
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if (!copied_from_device_) {
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/* Copy from device on demand. */
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path_trace_.copy_render_tile_from_device();
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const_cast<PathTraceTile *>(this)->copied_from_device_ = true;
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}
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const BufferParams &buffer_params = path_trace_.get_render_tile_params();
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const BufferPass *pass = buffer_params.find_pass(pass_name);
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if (pass == nullptr) {
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return false;
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}
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const bool has_denoised_result = path_trace_.has_denoised_result();
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if (pass->mode == PassMode::DENOISED && !has_denoised_result) {
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pass = buffer_params.find_pass(pass->type);
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if (pass == nullptr) {
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/* Happens when denoised result pass is requested but is never written by the kernel. */
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return false;
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}
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}
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pass = buffer_params.get_actual_display_pass(pass);
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const float exposure = buffer_params.exposure;
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const int num_samples = path_trace_.get_num_render_tile_samples();
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PassAccessor::PassAccessInfo pass_access_info(*pass);
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pass_access_info.use_approximate_shadow_catcher = buffer_params.use_approximate_shadow_catcher;
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pass_access_info.use_approximate_shadow_catcher_background =
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pass_access_info.use_approximate_shadow_catcher && !buffer_params.use_transparent_background;
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const PassAccessorCPU pass_accessor(pass_access_info, exposure, num_samples);
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const PassAccessor::Destination destination(pixels, num_channels);
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return path_trace_.get_render_tile_pixels(pass_accessor, destination);
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}
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bool PathTraceTile::set_pass_pixels(const string_view pass_name,
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const int num_channels,
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const float *pixels) const
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{
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/* NOTE: The code relies on a fact that session is fully update and no scene/buffer modification
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* is happening while this function runs. */
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const BufferParams &buffer_params = path_trace_.get_render_tile_params();
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const BufferPass *pass = buffer_params.find_pass(pass_name);
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if (!pass) {
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return false;
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}
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const float exposure = buffer_params.exposure;
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const int num_samples = 1;
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const PassAccessor::PassAccessInfo pass_access_info(*pass);
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PassAccessorCPU pass_accessor(pass_access_info, exposure, num_samples);
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PassAccessor::Source source(pixels, num_channels);
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return path_trace_.set_render_tile_pixels(pass_accessor, source);
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}
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CCL_NAMESPACE_END
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