102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library 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
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSGTERRAIN_GEOMETRYTECHNIQUE
|
|
#define OSGTERRAIN_GEOMETRYTECHNIQUE 1
|
|
|
|
#include <osg/MatrixTransform>
|
|
#include <osg/Geode>
|
|
#include <osg/Geometry>
|
|
|
|
#include <osgTerrain/TerrainTechnique>
|
|
|
|
namespace osgTerrain {
|
|
|
|
class OSGTERRAIN_EXPORT GeometryTechnique : public TerrainTechnique
|
|
{
|
|
public:
|
|
|
|
GeometryTechnique();
|
|
|
|
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
|
|
GeometryTechnique(const GeometryTechnique&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
|
|
|
|
virtual void init();
|
|
|
|
virtual void update(osgUtil::UpdateVisitor* nv);
|
|
|
|
virtual void cull(osgUtil::CullVisitor* nv);
|
|
|
|
/** Traverse the terain subgraph.*/
|
|
virtual void traverse(osg::NodeVisitor& nv);
|
|
|
|
virtual void cleanSceneGraph();
|
|
|
|
virtual void dirty();
|
|
|
|
|
|
|
|
void setFilterBias(float filterBias);
|
|
float getFilterBias() const { return _filterBias; }
|
|
|
|
void setFilterWidth(float filterWidth);
|
|
float getFilterWidth() const { return _filterWidth; }
|
|
|
|
void setFilterMatrix(const osg::Matrix3& matrix);
|
|
osg::Matrix3& getFilterMatrix() { return _filterMatrix; }
|
|
const osg::Matrix3& getFilterMatrix() const { return _filterMatrix; }
|
|
|
|
enum FilterType
|
|
{
|
|
GAUSSIAN,
|
|
SMOOTH,
|
|
SHARPEN
|
|
};
|
|
|
|
void setFilterMatrixAs(FilterType filterType);
|
|
|
|
|
|
private:
|
|
|
|
virtual ~GeometryTechnique();
|
|
|
|
struct BufferData
|
|
{
|
|
osg::ref_ptr<osg::MatrixTransform> _transform;
|
|
osg::ref_ptr<osg::Geode> _geode;
|
|
osg::ref_ptr<osg::Geometry> _geometry;
|
|
};
|
|
|
|
unsigned int _currentReadOnlyBuffer;
|
|
unsigned int _currentWriteBuffer;
|
|
|
|
BufferData _bufferData[2];
|
|
|
|
void swapBuffers();
|
|
|
|
inline BufferData& getReadOnlyBuffer() { return _bufferData[_currentReadOnlyBuffer]; }
|
|
inline BufferData& getWriteBuffer() { return _bufferData[_currentWriteBuffer]; }
|
|
|
|
|
|
float _filterBias;
|
|
osg::ref_ptr<osg::Uniform> _filterBiasUniform;
|
|
float _filterWidth;
|
|
osg::ref_ptr<osg::Uniform> _filterWidthUniform;
|
|
osg::Matrix3 _filterMatrix;
|
|
osg::ref_ptr<osg::Uniform> _filterMatrixUniform;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|