Image3::Ref Raytracer::render(const RenderSettings& settings, const GCamera& camera, Vector2int16 pixel)
{
gStatus = 0;
gNumPixelsRendered = 0;
_renderedImage = Image3::createEmpty();
_renderedImage->resize(settings._width, settings._height);
_currentCamera = camera;
_settings = settings;
_photonMap->clear();
if (settings._usePhotonMap)
{
if (_photonMap->size() == 0)
{
photonMapForwardTrace();
}
}
if (pixel.x == ALL && pixel.y == ALL)
{
if (settings._multiThreaded)
{
GThread::runConcurrently2D(
Vector2int32(0,0),
Vector2int32(settings._width, settings._height),
this,
&Raytracer::backwardTrace);
}
else
{
for (int y = 0; y < settings._height; ++y)
{
for (int x = 0; x < settings._width; ++x)
{
backwardTrace(x, y);
}
}
}
}
else
{
backwardTrace(pixel.x, pixel.y);
}
return _renderedImage;
}
Vector2int32 Vector2int32::clamp(const Vector2int32& lo, const Vector2int32& hi) {
return Vector2int32(iClamp(x, lo.x, hi.x), iClamp(y, lo.y, hi.y));
}
void App::onGraphics3D(RenderDevice* rd, Array<shared_ptr<Surface> >& allSurfaces) {
// This implementation is equivalent to the default GApp's. It is repeated here to make it
// easy to modify rendering. If you don't require custom rendering, just delete this
// method from your application and rely on the base class.
if (! scene()) {
return;
}
m_gbuffer->setSpecification(m_gbufferSpecification);
m_gbuffer->resize(m_framebuffer->width(), m_framebuffer->height());
m_gbuffer->prepare(rd, activeCamera(), 0, -(float)previousSimTimeStep(), m_settings.hdrFramebuffer.depthGuardBandThickness, m_settings.hdrFramebuffer.colorGuardBandThickness);
m_renderer->render(rd, m_framebuffer, m_depthPeelFramebuffer, scene()->lightingEnvironment(), m_gbuffer, allSurfaces);
// Debug visualizations and post-process effects
rd->pushState(m_framebuffer); {
if (m_enableSVO) {
rd->clear();
//rd->setProjectionAndCameraMatrix(activeCamera()->projection(), activeCamera()->frame());
rd->push2D();
const Vector2int32 guardBand(m_settings.hdrFramebuffer.depthGuardBandThickness - m_settings.hdrFramebuffer.colorGuardBandThickness);
const Vector2int32 colorRegionExtent = Vector2int32(m_framebuffer->vector2Bounds()) - guardBand * 2;
Args args;
rd->setGuardBandClip2D(Vector2int16(guardBand));
args.setRect(rd->viewport());
Matrix4 proj;
activeCamera()->getProjectUnitMatrix(m_framebuffer->rect2DBounds(), proj);
float focalLength = proj[0][0];
m_svo->setCurSvoId(0);
args.setUniform("guardBand", guardBand);
args.setUniform("focalLength", focalLength);
args.setUniform("renderRes", Vector2(colorRegionExtent));
args.setUniform("renderResI", colorRegionExtent);
args.setUniform("screenRatio", float(colorRegionExtent.y) / float(colorRegionExtent.x));
m_svo->connectToShader(args, Access::READ, m_svo->maxDepth(), m_svo->maxDepth());
rd->setColorWrite(true);
rd->setDepthWrite(false);
const Matrix4& cameraToVoxelMatrix = Matrix4(m_svo->svoToWorldMatrix()).inverse() * activeCamera()->frame();
args.setUniform("cameraToVoxelMatrix", cameraToVoxelMatrix);
args.setUniform("voxelToWorldMatrix", m_svo->svoToWorldMatrix());
args.setUniform("worldToVoxelMatrix", m_svo->worldToSVOMatrix());
args.setUniform("wsCameraPos", activeCamera()->frame().translation);
scene()->lightingEnvironment().setShaderArgs(args);
args.setUniform("raycastingConeFactor", m_voxelConeAperture);
rd->setDepthTest(RenderDevice::DEPTH_ALWAYS_PASS); // TODO: write gl_FragDepth and use a regular depth test here
m_gbuffer->texture(GBuffer::Field::DEPTH_AND_STENCIL)->setShaderArgs(args, "depth_", Sampler::buffer());
//rd->setBlendFunc(RenderDevice::BLEND_ONE, RenderDevice::BLEND_ONE_MINUS_SRC_ALPHA);
LAUNCH_SHADER("raycast.pix", args);
rd->pop2D();
}
// Call to make the App show the output of debugDraw(...)
rd->setProjectionAndCameraMatrix(activeCamera()->projection(), activeCamera()->frame());
drawDebugShapes();
const shared_ptr<Entity>& selectedEntity = (notNull(developerWindow) && notNull(developerWindow->sceneEditorWindow)) ? developerWindow->sceneEditorWindow->selectedEntity() : shared_ptr<Entity>();
scene()->visualize(rd, selectedEntity, allSurfaces, sceneVisualizationSettings(), activeCamera());
rd->setPolygonOffset(-0.2f);
if (m_debugSVONodes) {
m_svo->visualizeNodes(rd, m_debugSVONodeLevel);
}
if (m_debugSVOFragments) {
m_svo->visualizeFragments(rd);
}
rd->setPolygonOffset(0.0f);
// Post-process special effects
m_depthOfField->apply(rd, m_framebuffer->texture(0), m_framebuffer->texture(Framebuffer::DEPTH), activeCamera(), m_settings.hdrFramebuffer.depthGuardBandThickness - m_settings.hdrFramebuffer.colorGuardBandThickness);
m_motionBlur->apply(rd, m_framebuffer->texture(0), m_gbuffer->texture(GBuffer::Field::SS_EXPRESSIVE_MOTION),
m_framebuffer->texture(Framebuffer::DEPTH), activeCamera(),
m_settings.hdrFramebuffer.depthGuardBandThickness - m_settings.hdrFramebuffer.colorGuardBandThickness);
} rd->popState();
if ((submitToDisplayMode() == SubmitToDisplayMode::MAXIMIZE_THROUGHPUT) && (!renderDevice->swapBuffersAutomatically())) {
// We're about to render to the actual back buffer, so swap the buffers now.
// This call also allows the screenshot and video recording to capture the
// previous frame just before it is displayed.
swapBuffers();
}
// Clear the entire screen (needed even though we'll render over it, since
// AFR uses clear() to detect that the buffer is not re-used.)
rd->clear();
// Perform gamma correction, bloom, and SSAA, and write to the native window frame buffer
m_film->exposeAndRender(rd, activeCamera()->filmSettings(), m_framebuffer->texture(0));
}
void AmbientOcclusion::setShaderArgs(UniformTable& args, const String& prefix, const Sampler& sampler) {
// The notNull macro is set by the texture()
texture()->setShaderArgs(args, prefix, sampler);
args.setUniform(prefix + "offset", Vector2int32(0, 0));
}