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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2022 NVIDIA Corporation
* Copyright 2022 Blender Foundation */
#include "hydra/render_pass.h"
#include "hydra/camera.h"
#include "hydra/display_driver.h"
#include "hydra/output_driver.h"
#include "hydra/render_buffer.h"
#include "hydra/render_delegate.h"
#include "hydra/session.h"
#include "scene/camera.h"
#include "scene/integrator.h"
#include "scene/scene.h"
#include "session/session.h"
#include <pxr/imaging/hd/renderPassState.h>
HDCYCLES_NAMESPACE_OPEN_SCOPE
HdCyclesRenderPass::HdCyclesRenderPass(HdRenderIndex *index,
HdRprimCollection const &collection,
HdCyclesSession *renderParam)
: HdRenderPass(index, collection), _renderParam(renderParam)
{
Session *const session = _renderParam->session;
// Reset cancel state so session thread can continue rendering
session->progress.reset();
session->set_output_driver(make_unique<HdCyclesOutputDriver>(renderParam));
const auto renderDelegate = static_cast<const HdCyclesDelegate *>(
GetRenderIndex()->GetRenderDelegate());
if (renderDelegate->IsDisplaySupported()) {
session->set_display_driver(
make_unique<HdCyclesDisplayDriver>(renderParam, renderDelegate->GetHgi()));
}
}
HdCyclesRenderPass::~HdCyclesRenderPass()
{
Session *const session = _renderParam->session;
session->cancel(true);
}
bool HdCyclesRenderPass::IsConverged() const
{
for (const HdRenderPassAovBinding &aovBinding : _renderParam->GetAovBindings()) {
if (aovBinding.renderBuffer && !aovBinding.renderBuffer->IsConverged()) {
return false;
}
}
return true;
}
void HdCyclesRenderPass::ResetConverged()
{
for (const HdRenderPassAovBinding &aovBinding : _renderParam->GetAovBindings()) {
if (const auto renderBuffer = static_cast<HdCyclesRenderBuffer *>(aovBinding.renderBuffer)) {
renderBuffer->SetConverged(false);
}
}
}
void HdCyclesRenderPass::_Execute(const HdRenderPassStateSharedPtr &renderPassState,
const TfTokenVector &renderTags)
{
Scene *const scene = _renderParam->session->scene;
Session *const session = _renderParam->session;
if (session->progress.get_cancel()) {
return; // Something went wrong and cannot continue without recreating the session
}
if (scene->mutex.try_lock()) {
const auto renderDelegate = static_cast<HdCyclesDelegate *>(
GetRenderIndex()->GetRenderDelegate());
const unsigned int settingsVersion = renderDelegate->GetRenderSettingsVersion();
// Update requested AOV bindings
const HdRenderPassAovBindingVector &aovBindings = renderPassState->GetAovBindings();
if (_renderParam->GetAovBindings() != aovBindings ||
// Need to resync passes when denoising is enabled or disabled to update the pass mode
(settingsVersion != _lastSettingsVersion &&
scene->integrator->use_denoise_is_modified())) {
_renderParam->SyncAovBindings(aovBindings);
if (renderDelegate->IsDisplaySupported()) {
// Update display pass to the first requested color AOV
HdRenderPassAovBinding displayAovBinding = !aovBindings.empty() ? aovBindings.front() :
HdRenderPassAovBinding();
if (displayAovBinding.aovName == HdAovTokens->color && displayAovBinding.renderBuffer) {
_renderParam->SetDisplayAovBinding(displayAovBinding);
}
else {
_renderParam->SetDisplayAovBinding(HdRenderPassAovBinding());
}
}
}
// Update camera dimensions to the viewport size
#if PXR_VERSION >= 2102
CameraUtilFraming framing = renderPassState->GetFraming();
if (!framing.IsValid()) {
const GfVec4f vp = renderPassState->GetViewport();
framing = CameraUtilFraming(GfRect2i(GfVec2i(0), int(vp[2]), int(vp[3])));
}
scene->camera->set_full_width(framing.dataWindow.GetWidth());
scene->camera->set_full_height(framing.dataWindow.GetHeight());
#else
const GfVec4f vp = renderPassState->GetViewport();
scene->camera->set_full_width(int(vp[2]));
scene->camera->set_full_height(int(vp[3]));
#endif
if (const auto camera = static_cast<const HdCyclesCamera *>(renderPassState->GetCamera())) {
camera->ApplyCameraSettings(scene->camera);
}
else {
HdCyclesCamera::ApplyCameraSettings(renderPassState->GetWorldToViewMatrix(),
renderPassState->GetProjectionMatrix(),
renderPassState->GetClipPlanes(),
scene->camera);
}
// Reset session if the session, scene, camera or AOV bindings changed
if (scene->need_reset() || settingsVersion != _lastSettingsVersion) {
_lastSettingsVersion = settingsVersion;
// Reset convergence state of all render buffers
ResetConverged();
BufferParams buffer_params;
#if PXR_VERSION >= 2102
buffer_params.full_x = static_cast<int>(framing.displayWindow.GetMin()[0]);
buffer_params.full_y = static_cast<int>(framing.displayWindow.GetMin()[1]);
buffer_params.full_width = static_cast<int>(framing.displayWindow.GetSize()[0]);
buffer_params.full_height = static_cast<int>(framing.displayWindow.GetSize()[1]);
buffer_params.window_x = framing.dataWindow.GetMinX() - buffer_params.full_x;
buffer_params.window_y = framing.dataWindow.GetMinY() - buffer_params.full_y;
buffer_params.window_width = framing.dataWindow.GetWidth();
buffer_params.window_height = framing.dataWindow.GetHeight();
buffer_params.width = buffer_params.window_width;
buffer_params.height = buffer_params.window_height;
#else
buffer_params.width = static_cast<int>(vp[2]);
buffer_params.height = static_cast<int>(vp[3]);
buffer_params.full_width = buffer_params.width;
buffer_params.full_height = buffer_params.height;
buffer_params.window_width = buffer_params.width;
buffer_params.window_height = buffer_params.height;
#endif
session->reset(session->params, buffer_params);
}
scene->mutex.unlock();
// Start Cycles render thread if not already running
session->start();
}
session->draw();
}
void HdCyclesRenderPass::_MarkCollectionDirty()
{
}
HDCYCLES_NAMESPACE_CLOSE_SCOPE
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