1 // Copyright (C) 2008 Tim Moore
3 // This program is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU General Public License as
5 // published by the Free Software Foundation; either version 2 of the
6 // License, or (at your option) any later version.
8 // This program is distributed in the hope that it will be useful, but
9 // WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 #ifndef VIEWPARTITIONNODE_HXX
18 #define VIEWPARTITIONNODE_HXX 1
19 // The ViewPartitionNode splits the viewing frustum inherited from a
20 // camera higher in the scene graph (usually the Viewer master or
21 // slave camera) into 3 parts: from the parent near plane to a
22 // intermediate far plane (100m), then out to the current visibility,
23 // and then beyond where background stuff is rendered. The depth
24 // buffer and depth testing are disabled for the background.
30 class ViewPartitionNode : public osg::Group
34 ViewPartitionNode(const ViewPartitionNode& rhs,
35 const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
36 META_Node(flightgear, ViewPartitionNode);
38 /** Catch child management functions so the Cameras can be informed
39 of added or removed children. */
40 virtual bool addChild(osg::Node *child);
41 virtual bool insertChild(unsigned int index, osg::Node *child);
42 virtual bool removeChildren(unsigned int pos, unsigned int numRemove = 1);
43 virtual bool setChild(unsigned int i, osg::Node *node);
44 virtual void traverse(osg::NodeVisitor &nv);
45 void setVisibility(double vis) { visibility = vis; }
46 double getVisibility() const { return visibility; }
47 static void makeNewProjMat(osg::Matrixd& oldProj, double znear, double zfar,
48 osg::Matrixd& projection);
51 typedef std::vector< osg::ref_ptr<osg::Camera> > CameraList;
58 static const double nearCameraFar;