shared_ptr<Image> RayTracer::render
(const Settings& settings,
const LightingEnvironment& lighting,
const shared_ptr<Camera>& camera,
Stats& stats) {
RealTime start;
debugAssert(notNull(camera));
if (m_settings.photon != settings.photon) {
// Photon settings changed; reset the photon map
m_photonMapUpdateTime = 0;
}
m_camera = camera;
m_lighting = lighting;
m_settings = settings;
maybeUpdateTree();
maybeUpdatePhotonMap();
app->drawMessage("Tracing Backward Rays");
stats.buildTriTreeTimeMilliseconds = (float)m_buildTriTreeTimeMilliseconds;
stats.photonTraceTimeMilliseconds = (float)m_photonTraceTimeMilliseconds;
stats.buildPhotonMapTimeMilliseconds = (float)m_buildPhotonMapTimeMilliseconds;
// Allocate the image
m_image = Image::create(settings.width, settings.height, ImageFormat::RGB32F());
// Render the image
start = System::time();
const int numThreads = settings.multithreaded ? GThread::NUM_CORES : 1;
traceAllPixels(numThreads);
stats.rayTraceTimeMilliseconds = float((System::time() - start) / units::milliseconds());
shared_ptr<Image> temp(m_image);
stats.lights = m_lighting.lightArray.size();
stats.pixels = settings.width * settings.height;
stats.triangles = m_triTree.size();
stats.storedPhotons = m_photonMap.size();
// Reset pointers to NULL to allow garbage collection
m_camera.reset();
m_image.reset();
return temp;
}
shared_ptr<Image> RayTracer::render(const Settings& settings,
const Array< shared_ptr<Surface> >& surfaceArray,
const shared_ptr<LightingEnvironment>& lighting,
const shared_ptr<Camera>& camera,
Stats& stats) {
RealTime start;
debugAssert(notNull(lighting) && notNull(camera));
// store member copies of the arguments
// so that they can propagate inside the callbacks
m_settings = settings;
m_lighting = lighting;
m_camera = camera;
m_stats = &stats;
stats.indirectRays = 0;
stats.shadowRays = 0;
// Build the TriTree
start = System::time();
m_triTree.setContents(surfaceArray);
stats.buildTriTreeTimeMilliseconds = float((System::time() - start) / units::milliseconds());
// Allocate the image
m_image = Image::create(settings.width, settings.height, ImageFormat::RGB32F());
// Create Photon Map
if (m_settings.enablePhotonMapping){
start = System::time();
createPhotonMap();
stats.buildPhotonMapMilliseconds = float((System::time() - start) / units::milliseconds());
stats.photonMapSize = photons.size();
}
// Render the image
start = System::time();
const int numThreads = settings.multithreaded ? GThread::NUM_CORES : 1;
traceAllPixels(numThreads);
stats.rayTraceTimeMilliseconds = float((System::time() - start) / units::milliseconds());
// Fill out other stats
stats.triangles = m_triTree.size();
stats.pixels = settings.width * settings.height;
stats.lights = lighting->lightArray.size();
stats.primaryRays = stats.pixels * settings.raysPerPixel;
stats.totalRays = stats.primaryRays + stats.indirectRays + stats.shadowRays;
shared_ptr<Image> temp(m_image);
m_triTree.clear();
photons.clear();
// Reset pointers to NULL to allow garbage collection
m_lighting.reset();
m_camera.reset();
m_image.reset();
return temp;
}
