96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/* SPDX-FileCopyrightText: 2021-2022 Blender Foundation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 */
|
|
|
|
#include "integrator/path_trace_tile.h"
|
|
#include "integrator/pass_accessor_cpu.h"
|
|
#include "integrator/path_trace.h"
|
|
|
|
#include "scene/film.h"
|
|
#include "scene/pass.h"
|
|
#include "scene/scene.h"
|
|
#include "session/buffers.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
PathTraceTile::PathTraceTile(PathTrace &path_trace)
|
|
: OutputDriver::Tile(path_trace.get_render_tile_offset(),
|
|
path_trace.get_render_tile_size(),
|
|
path_trace.get_render_size(),
|
|
path_trace.get_render_tile_params().layer,
|
|
path_trace.get_render_tile_params().view),
|
|
path_trace_(path_trace),
|
|
copied_from_device_(false)
|
|
{
|
|
}
|
|
|
|
bool PathTraceTile::get_pass_pixels(const string_view pass_name,
|
|
const int num_channels,
|
|
float *pixels) const
|
|
{
|
|
/* NOTE: The code relies on a fact that session is fully update and no scene/buffer modification
|
|
* is happening while this function runs. */
|
|
|
|
if (!copied_from_device_) {
|
|
/* Copy from device on demand. */
|
|
path_trace_.copy_render_tile_from_device();
|
|
copied_from_device_ = true;
|
|
}
|
|
|
|
const BufferParams &buffer_params = path_trace_.get_render_tile_params();
|
|
|
|
const BufferPass *pass = buffer_params.find_pass(pass_name);
|
|
if (pass == nullptr) {
|
|
return false;
|
|
}
|
|
|
|
const bool has_denoised_result = path_trace_.has_denoised_result();
|
|
if (pass->mode == PassMode::DENOISED && !has_denoised_result) {
|
|
pass = buffer_params.find_pass(pass->type);
|
|
if (pass == nullptr) {
|
|
/* Happens when denoised result pass is requested but is never written by the kernel. */
|
|
return false;
|
|
}
|
|
}
|
|
|
|
pass = buffer_params.get_actual_display_pass(pass);
|
|
|
|
const float exposure = buffer_params.exposure;
|
|
const int num_samples = path_trace_.get_num_render_tile_samples();
|
|
|
|
PassAccessor::PassAccessInfo pass_access_info(*pass);
|
|
pass_access_info.use_approximate_shadow_catcher = buffer_params.use_approximate_shadow_catcher;
|
|
pass_access_info.use_approximate_shadow_catcher_background =
|
|
pass_access_info.use_approximate_shadow_catcher && !buffer_params.use_transparent_background;
|
|
|
|
const PassAccessorCPU pass_accessor(pass_access_info, exposure, num_samples);
|
|
const PassAccessor::Destination destination(pixels, num_channels);
|
|
|
|
return path_trace_.get_render_tile_pixels(pass_accessor, destination);
|
|
}
|
|
|
|
bool PathTraceTile::set_pass_pixels(const string_view pass_name,
|
|
const int num_channels,
|
|
const float *pixels) const
|
|
{
|
|
/* NOTE: The code relies on a fact that session is fully update and no scene/buffer modification
|
|
* is happening while this function runs. */
|
|
|
|
const BufferParams &buffer_params = path_trace_.get_render_tile_params();
|
|
const BufferPass *pass = buffer_params.find_pass(pass_name);
|
|
if (!pass) {
|
|
return false;
|
|
}
|
|
|
|
const float exposure = buffer_params.exposure;
|
|
const int num_samples = 1;
|
|
|
|
const PassAccessor::PassAccessInfo pass_access_info(*pass);
|
|
PassAccessorCPU pass_accessor(pass_access_info, exposure, num_samples);
|
|
PassAccessor::Source source(pixels, num_channels);
|
|
|
|
return path_trace_.set_render_tile_pixels(pass_accessor, source);
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|