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@ -9,6 +9,11 @@
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#include <osgViewer/Viewer>
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#include <components/settings/settings.hpp>
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#include <components/sceneutil/util.hpp>
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#include <components/debug/debuglog.hpp>
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#include "vismask.hpp"
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#include "renderingmanager.hpp"
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namespace
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{
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@ -57,6 +62,8 @@ namespace
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traverse(node, nv);
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}
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private:
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MWRender::PostProcessor* mPostProcessor;
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unsigned int mLastFrameNumber;
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};
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@ -70,6 +77,7 @@ namespace
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void resizedImplementation(osg::GraphicsContext* gc, int x, int y, int width, int height) override
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{
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gc->resizedImplementation(x, y, width, height);
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mPostProcessor->resize(width, height);
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}
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@ -79,22 +87,55 @@ namespace
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namespace MWRender
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{
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PostProcessor::PostProcessor(osgViewer::Viewer* viewer, osg::Group* rootNode)
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PostProcessor::PostProcessor(RenderingManager& rendering, osgViewer::Viewer* viewer, osg::Group* rootNode)
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: mViewer(viewer)
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, mRootNode(new osg::Group)
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, mRendering(rendering)
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{
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osg::GraphicsContext* gc = viewer->getCamera()->getGraphicsContext();
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unsigned int contextID = gc->getState()->getContextID();
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osg::GLExtensions* ext = gc->getState()->get<osg::GLExtensions>();
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constexpr char errPreamble[] = "Postprocessing and floating point depth buffers disabled: ";
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if (!ext->isFrameBufferObjectSupported)
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{
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Log(Debug::Warning) << errPreamble << "FrameBufferObject unsupported.";
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return;
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}
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if (Settings::Manager::getInt("antialiasing", "Video") > 1 && !ext->isRenderbufferMultisampleSupported())
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{
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Log(Debug::Warning) << errPreamble << "RenderBufferMultiSample unsupported. Disabling antialiasing will resolve this issue.";
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return;
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}
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if (osg::isGLExtensionSupported(contextID, "GL_ARB_depth_buffer_float"))
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mDepthFormat = GL_DEPTH_COMPONENT32F;
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else if (osg::isGLExtensionSupported(contextID, "GL_NV_depth_buffer_float"))
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mDepthFormat = GL_DEPTH_COMPONENT32F_NV;
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else
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{
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// TODO: Once we have post-processing implemented we want to skip this return and continue with setup.
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// Rendering to a FBO to fullscreen geometry has overhead (especially when MSAA is enabled) and there are no
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// benefits if no floating point depth formats are supported.
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mDepthFormat = GL_DEPTH_COMPONENT24;
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Log(Debug::Warning) << errPreamble << "'GL_ARB_depth_buffer_float' and 'GL_NV_depth_buffer_float' unsupported.";
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return;
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}
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int width = viewer->getCamera()->getViewport()->width();
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int height = viewer->getCamera()->getViewport()->height();
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createTexturesAndCamera(width, height);
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resize(width, height);
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resize(width, height, true);
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mRootNode->addChild(mHUDCamera);
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mRootNode->addChild(rootNode);
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mViewer->setSceneData(mRootNode);
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// Main camera is treated specially, we need to manually set the FBO and
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// resolve FBO during the cull callback.
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// We need to manually set the FBO and resolve FBO during the cull callback. If we were using a separate
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// RTT camera this would not be needed.
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mViewer->getCamera()->addCullCallback(new CullCallback(this));
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mViewer->getCamera()->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
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mViewer->getCamera()->attach(osg::Camera::COLOR_BUFFER0, mSceneTex);
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@ -103,12 +144,12 @@ namespace MWRender
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mViewer->getCamera()->getGraphicsContext()->setResizedCallback(new ResizedCallback(this));
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}
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void PostProcessor::resize(int width, int height)
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void PostProcessor::resize(int width, int height, bool init)
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{
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mDepthTex->setTextureSize(width, height);
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mSceneTex->setTextureSize(width, height);
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mDepthTex->dirtyTextureObject();
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mSceneTex->dirtyTextureObject();
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mDepthTex->dirtyTextureObject();
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mSceneTex->dirtyTextureObject();
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int samples = Settings::Manager::getInt("antialiasing", "Video");
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@ -130,15 +171,13 @@ namespace MWRender
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mMsaaFbo->setAttachment(osg::Camera::DEPTH_BUFFER, osg::FrameBufferAttachment(depthRB));
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}
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double prevWidth = mViewer->getCamera()->getViewport()->width();
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double prevHeight = mViewer->getCamera()->getViewport()->height();
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double scaleX = prevWidth / width;
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double scaleY = prevHeight / height;
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if (init)
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return;
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mViewer->getCamera()->resize(width,height);
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mHUDCamera->resize(width,height);
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mViewer->getCamera()->resize(width, height);
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mHUDCamera->resize(width, height);
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mViewer->getCamera()->getProjectionMatrix() *= osg::Matrix::scale(scaleX, scaleY, 1.0);
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mRendering.updateProjectionMatrix();
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}
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void PostProcessor::createTexturesAndCamera(int width, int height)
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@ -146,8 +185,8 @@ namespace MWRender
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mDepthTex = new osg::Texture2D;
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mDepthTex->setTextureSize(width, height);
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mDepthTex->setSourceFormat(GL_DEPTH_COMPONENT);
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mDepthTex->setSourceType(GL_FLOAT);
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mDepthTex->setInternalFormat(GL_DEPTH_COMPONENT32F);
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mDepthTex->setSourceType(SceneUtil::isFloatingPointDepthFormat(getDepthFormat()) ? GL_FLOAT : GL_UNSIGNED_INT);
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mDepthTex->setInternalFormat(mDepthFormat);
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mDepthTex->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::NEAREST);
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mDepthTex->setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::NEAREST);
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mDepthTex->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
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@ -206,6 +245,7 @@ namespace MWRender
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program->addShader(fragShader);
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mHUDCamera->addChild(createFullScreenTri());
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mHUDCamera->setNodeMask(Mask_RenderToTexture);
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auto* stateset = mHUDCamera->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0, mSceneTex, osg::StateAttribute::ON);
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glassmancody.info
3 years ago