99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
/* -*-c++-*- */
|
|
/* osgEarth - Geospatial SDK for OpenSceneGraph
|
|
* Copyright 2020 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.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
* 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_DRAPING_CULL_SET
|
|
#define OSGEARTH_DRAPING_CULL_SET
|
|
|
|
#include <osgEarth/Common>
|
|
#include <osgEarth/Containers>
|
|
#include <osgEarth/DrapeableNode>
|
|
#include <osg/Camera>
|
|
#include <osg/ObserverNodePath>
|
|
#include <queue>
|
|
|
|
namespace osgEarth { namespace Util
|
|
{
|
|
/**
|
|
* Culling set for tracking groups whose contents should be "draped",
|
|
* i.e. rendered to a texture and projected onto the terrain.
|
|
* Internal object - do not use directly. Use a DrapeableNode instead.
|
|
*/
|
|
class OSGEARTH_INTERNAL DrapingCullSet
|
|
{
|
|
public:
|
|
struct Entry
|
|
{
|
|
osg::observer_ptr<DrapeableNode> _node;
|
|
osg::ref_ptr<osg::RefMatrix> _matrix;
|
|
osg::ObserverNodePath _path;
|
|
int _frame;
|
|
};
|
|
|
|
public:
|
|
DrapingCullSet();
|
|
~DrapingCullSet() { } // not virtual
|
|
|
|
/** Pushes a node and its matrix into the cull set */
|
|
void push(DrapeableNode* node, const osg::NodePath& path, const osg::FrameStamp* stamp);
|
|
|
|
/** Runs a node visitor on the cull set, optionally popping as it goes along. */
|
|
void accept(osg::NodeVisitor& nv);
|
|
|
|
//! Bounds of the latest set
|
|
const osg::BoundingSphere& getBound() const;
|
|
|
|
private:
|
|
struct FrameData {
|
|
FrameData() : _acceptFrame(-1) { }
|
|
int _acceptFrame;
|
|
std::vector<Entry> _entries;
|
|
osg::BoundingSphere _bs;
|
|
};
|
|
using SortedFrameData = std::map<int, FrameData>;
|
|
SortedFrameData _data;
|
|
std::mutex _data_mutex;
|
|
};
|
|
|
|
/**
|
|
* Houses all the active DrapingCullSets under an osgEarth TerrainEngine.
|
|
* Internal node - so not use directly.
|
|
*/
|
|
class OSGEARTH_INTERNAL DrapingManager
|
|
{
|
|
public:
|
|
DrapingManager();
|
|
|
|
//! Gets the draping cull set associated with a camera.
|
|
DrapingCullSet& get(const osg::Camera*);
|
|
|
|
//! Sets the render bin number for DrapingCameras.
|
|
void setRenderBinNumber(int value) { _renderBinNum = value; }
|
|
int getRenderBinNumber() const { return _renderBinNum; }
|
|
|
|
private:
|
|
PerObjectFastMap<const osg::Camera*, DrapingCullSet> _sets;
|
|
int _renderBinNum;
|
|
};
|
|
|
|
} } // namespace osgEarth
|
|
|
|
#endif // OSGEARTH_DRAPING_CULL_SET
|