/usr/include/osgEarth/DrawInstanced is in libosgearth-dev 2.4.0+dfsg-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 Pelican Mapping
* http://osgearth.org
*
* osgEarth is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTH_DRAW_INSTANCED_H
#define OSGEARTH_DRAW_INSTANCED_H 1
#include <osgEarth/Common>
#include <osgEarth/VirtualProgram>
#include <osg/NodeVisitor>
#include <osg/Geode>
/**
* Some utilities to support *DrawInstanced rendering.
*/
namespace osgEarth
{
namespace DrawInstanced
{
/**
* Visitor that converts all the primitive sets in a graph to use
* instanced draw calls.
* Called by convertGraphToUseDrawInstanced().
*/
class OSGEARTH_EXPORT ConvertToDrawInstanced : public osg::NodeVisitor
{
public:
/**
* Create the visitor that will convert primitive sets to draw
* <num> instances.
*/
ConvertToDrawInstanced(
unsigned numInstances,
const osg::BoundingBox& bbox,
bool optimize );
void apply(osg::Geode&);
protected:
unsigned _numInstances;
bool _optimize;
osg::ref_ptr<osg::Drawable::ComputeBoundingBoxCallback> _staticBBoxCallback;
};
/**
* Creates a virtual shader program that implements DrawInstanced rendering.
* You should prepare the scene graph with the ConvertToDrawInstanced
* visitor first.
* Called by convertGraphToUseDrawInstanced().
*/
extern OSGEARTH_EXPORT VirtualProgram* createDrawInstancedProgram();
/**
* Processes a scene graph and converts all the top-level MatrixTransform
* nodes into shader uniforms that can be used with the VirtualProgram
* created by createDrawInstacedShaders.
*/
extern OSGEARTH_EXPORT void convertGraphToUseDrawInstanced(
osg::Group* graph );
}
}
#endif // OSGEARTH_DRAW_INSTANCED_H
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