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122 lines
3.5 KiB
122 lines
3.5 KiB
// Viewer.hxx -- alternative flightgear viewer application
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//
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// Copyright (C) 2009 - 2012 Mathias Froehlich
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "Renderer.hxx"
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#include <osgViewer/Renderer>
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#include <simgear/scene/material/EffectCullVisitor.hxx>
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#include "Drawable.hxx"
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#include "Viewer.hxx"
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#include "SlaveCamera.hxx"
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namespace fgviewer {
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// FIXME I understand why we currently need this, but this seems like
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// weird to require an own cull visitor.
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static void installCullVisitor(osg::Camera& camera)
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{
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osgViewer::Renderer* renderer = static_cast<osgViewer::Renderer*>(camera.getRenderer());
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for (int i = 0; i < 2; ++i) {
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osgUtil::SceneView* sceneView = renderer->getSceneView(i);
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osg::ref_ptr<osgUtil::CullVisitor::Identifier> identifier;
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identifier = sceneView->getCullVisitor()->getIdentifier();
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sceneView->setCullVisitor(new simgear::EffectCullVisitor);
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sceneView->getCullVisitor()->setIdentifier(identifier.get());
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identifier = sceneView->getCullVisitorLeft()->getIdentifier();
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sceneView->setCullVisitorLeft(sceneView->getCullVisitor()->clone());
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sceneView->getCullVisitorLeft()->setIdentifier(identifier.get());
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identifier = sceneView->getCullVisitorRight()->getIdentifier();
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sceneView->setCullVisitorRight(sceneView->getCullVisitor()->clone());
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sceneView->getCullVisitorRight()->setIdentifier(identifier.get());
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}
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}
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class Renderer::_SlaveCamera : public SlaveCamera {
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public:
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_SlaveCamera(const std::string& name) :
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SlaveCamera(name)
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{
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}
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virtual ~_SlaveCamera()
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{
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}
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virtual osg::Camera* _realizeImplementation(Viewer& viewer)
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{
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osg::Camera* camera = SlaveCamera::_realizeImplementation(viewer);
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if (!camera)
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return 0;
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camera->addChild(viewer.getSceneDataGroup());
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viewer.addSlave(camera, osg::Matrix::identity(), getViewOffset(), false /*useMastersSceneData*/);
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installCullVisitor(*camera);
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return camera;
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}
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virtual bool _updateImplementation(Viewer& viewer)
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{
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getCamera()->setViewMatrix(getEffectiveViewOffset(viewer));
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getCamera()->setProjectionMatrix(getEffectiveFrustum(viewer).getMatrix(osg::Vec2(10, 8e4)));
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return SlaveCamera::_updateImplementation(viewer);
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}
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};
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Renderer::Renderer()
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{
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}
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Renderer::~Renderer()
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{
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}
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Drawable*
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Renderer::createDrawable(Viewer&, const std::string& name)
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{
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return new Drawable(name);
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}
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SlaveCamera*
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Renderer::createSlaveCamera(Viewer&, const std::string& name)
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{
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return new _SlaveCamera(name);
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}
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bool
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Renderer::realize(Viewer& viewer)
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{
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if (!viewer.realizeDrawables())
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return false;
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return viewer.realizeSlaveCameras();
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}
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bool
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Renderer::update(Viewer& viewer)
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{
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return viewer.updateSlaveCameras();
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}
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} // namespace fgviewer
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