void StandaloneRenderManager::renderNextIteration()
{
try
{
if(m_application.getRunningStatus() == RunningStatus::RUNNING && m_currentScene != NULL)
{
m_noEmittedSignals = true;
if(m_compileScene)
{
m_application.setRendererStatus(RendererStatus::INITIALIZING_SCENE);
m_renderer.initScene(*m_currentScene);
m_compileScene = false;
m_application.setRendererStatus(RendererStatus::RENDERING);
}
// We only diplay one every X frames on screen (to make fair comparison with distributed renderer)
bool shouldOutputIteration = m_nextIterationNumber % 5 == 0;
const double PPMAlpha = 2.0/3.0;
QVector<unsigned long long> iterationNumbers;
QVector<double> ppmRadii;
RenderServerRenderRequestDetails details (m_camera, QByteArray(m_currentScene->getSceneName()),
m_application.getRenderMethod(), m_application.getWidth(), m_application.getHeight(), PPMAlpha);
RenderServerRenderRequest renderRequest (m_application.getSequenceNumber(), iterationNumbers, ppmRadii, details);
m_renderer.renderNextIteration(m_nextIterationNumber, m_nextIterationNumber, m_PPMRadius, shouldOutputIteration, renderRequest.getDetails());
const double ppmRadiusSquared = m_PPMRadius*m_PPMRadius;
const double ppmRadiusSquaredNew = ppmRadiusSquared*(m_nextIterationNumber+PPMAlpha)/double(m_nextIterationNumber+1);
m_PPMRadius = sqrt(ppmRadiusSquaredNew);
// Transfer the output buffer to CPU and signal ready for display
if(shouldOutputIteration)
{
if(m_outputBuffer == NULL)
{
m_outputBuffer = new float[2000*2000*3];
}
m_renderer.getOutputBuffer(m_outputBuffer);
emit newFrameReadyForDisplay(m_outputBuffer, m_nextIterationNumber);
}
fillRenderStatistics();
m_nextIterationNumber++;
}
}
catch(const std::exception & E)
{
m_application.setRunningStatus(RunningStatus::PAUSE);
QString error = QString("%1").arg(E.what());
emit renderManagerError(error);
}
}
void StandaloneRenderManager::start()
{
m_application.setRendererStatus(RendererStatus::INITIALIZING_ENGINE);
try
{
m_renderer.initialize(m_device);
}
catch(const std::exception & E)
{
QString error = QString("Error during initialization: %1").arg(E.what());
emit renderManagerError(error);
}
}
void StandaloneRenderManager::renderNextIteration()
{
try
{
if(m_application.getRunningStatus() == RunningStatus::RUNNING && m_currentScene != NULL)
{
m_noEmittedSignals = true;
if(m_compileScene)
{
m_application.setRendererStatus(RendererStatus::INITIALIZING_SCENE);
m_renderer.initScene(*m_currentScene);
m_compileScene = false;
m_application.setRendererStatus(RendererStatus::STARTING_RENDERING);
}
// We only display one every X frames on screen (to make fair comparison with distributed renderer)
bool shouldOutputIteration = m_nextIterationNumber % 5 == 0;
//bool shouldOutputIteration = m_nextIterationNumber % 1 == 0;
const double PPMAlpha = 2.0/3.0;
QVector<unsigned long long> iterationNumbers;
QVector<double> ppmRadii;
RenderServerRenderRequestDetails details (m_camera, QByteArray(m_currentScene->getSceneName()),
m_application.getRenderMethod(), m_application.getWidth(), m_application.getHeight(), PPMAlpha);
RenderServerRenderRequest renderRequest (m_application.getSequenceNumber(), iterationNumbers, ppmRadii, details);
m_renderer.renderNextIteration(m_nextIterationNumber, m_nextIterationNumber, m_PPMRadius, shouldOutputIteration, renderRequest.getDetails());
const double ppmRadiusSquared = m_PPMRadius*m_PPMRadius;
const double ppmRadiusSquaredNew = ppmRadiusSquared*(m_nextIterationNumber+PPMAlpha)/double(m_nextIterationNumber+1);
m_PPMRadius = sqrt(ppmRadiusSquaredNew);
// set as rendering only after first iteration, since that one can slow due init and sync with gpu
if (m_application.getRendererStatus() != RendererStatus::RENDERING)
m_application.setRendererStatus(RendererStatus::RENDERING);
// Transfer the output buffer to CPU and signal ready for display
m_outputBufferMutex.lock();
m_lastRendererIterationNumber = m_nextIterationNumber;
if(shouldOutputIteration)
{
if(m_outputBuffer == NULL)
{
m_outputBuffer = new float[MAX_OUTPUT_X*MAX_OUTPUT_Y*3];
}
m_renderer.getOutputBuffer(m_outputBuffer);
// FIXME
// vmarz: m_lastRendererIterationNumber shouldn't be exposed like that, but passed next iteration number
// can be invalid (already incremented) when render widget is updating and accumulated values get scaled incorrectly
emit newFrameReadyForDisplay(m_outputBuffer, &m_lastRendererIterationNumber, &m_outputBufferMutex);
}
m_outputBufferMutex.unlock();
fillRenderStatistics();
m_nextIterationNumber++;
}
}
catch(const std::exception & E)
{
m_application.setRunningStatus(RunningStatus::PAUSE);
QString error = QString("%1").arg(E.what());
emit renderManagerError(error);
}
}
