1a134c4c30
* Add OutputDriver, replacing function callbacks in Session. * Add PathTraceTile, replacing tile access methods in Session. * Add more detailed comments about how this driver should be implemented. * Add OIIOOutputDriver for Cycles standalone to output an image. Differential Revision: https://developer.blender.org/D12627
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
/*
|
|
* Copyright 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.
|
|
*/
|
|
|
|
#include "integrator/path_trace_tile.h"
|
|
#include "integrator/pass_accessor_cpu.h"
|
|
#include "integrator/path_trace.h"
|
|
|
|
#include "render/buffers.h"
|
|
#include "render/film.h"
|
|
#include "render/pass.h"
|
|
#include "render/scene.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();
|
|
const_cast<PathTraceTile *>(this)->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
|