/usr/include/osgEarthUtil/LODBlending is in libosgearth-dev 2.9.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2012 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 OSGEARTHUTIL_LOD_BLENDING_H
#define OSGEARTHUTIL_LOD_BLENDING_H
#include <osgEarthUtil/Common>
#include <osgEarth/TerrainEffect>
#include <osg/Uniform>
#include <osg/Node>
#include <osg/observer_ptr>
namespace osgEarth { namespace Util
{
class LODBlendingOptions : public ConfigOptions
{
public:
LODBlendingOptions( const ConfigOptions& opt =ConfigOptions() ) :
ConfigOptions( opt ),
_delay ( 0.0f ),
_duration ( 0.25f ),
_vscale ( 1.0f ),
_blendImagery ( true ),
_blendElevation( true )
{
fromConfig( _conf );
}
public:
/** Sets the delay (in seconds) between the time the tile appears
and when it starts its transition */
optional<float>& delay() { return _delay; }
const optional<float>& delay() const { return _delay; }
/** Sets the duration of the transition */
optional<float>& duration() { return _duration; }
const optional<float>& duration() const { return _duration; }
/** Vertical scale factor to apply to elevation */
optional<float>& verticalScale() { return _vscale; }
const optional<float>& verticalScale() const { return _vscale; }
/** Whether to blend imagery (default=true) */
optional<bool>& blendImagery() { return _blendImagery; }
const optional<bool>& blendImagery() const { return _blendImagery; }
/** Whether to blend elevation (default=true) */
optional<bool>& blendElevation() { return _blendElevation; }
const optional<bool>& blendElevation() const { return _blendElevation; }
public:
Config getConfig() const {
Config conf = ConfigOptions::getConfig();
conf.addIfSet("delay", _delay);
conf.addIfSet("duration", _duration);
conf.addIfSet("vertical_scale", _vscale);
conf.addIfSet("blend_imagery", _blendImagery);
conf.addIfSet("blend_elevation", _blendElevation);
return conf;
}
protected:
void mergeConfig( const Config& conf ) {
ConfigOptions::mergeConfig( conf );
fromConfig( conf );
}
private:
void fromConfig( const Config& conf ) {
conf.getIfSet("delay", _delay);
conf.getIfSet("duration", _duration);
conf.getIfSet("vertical_scale", _vscale);
conf.getIfSet("blend_imagery", _blendImagery);
conf.getIfSet("blend_elevation", _blendElevation);
}
private:
optional<float> _delay;
optional<float> _duration;
optional<float> _vscale;
optional<bool> _blendImagery;
optional<bool> _blendElevation;
};
/**
* Terrain effect that blends terrain levels of detail for a
* smooth transition effect. Operates on elevation data and
* image data.
*
* Known limitation: LOD blending requires either (a) a fully-textured
* terrain, by way of a base layer that completely covers the map; or
* (b) a transparent globe color. It will not work properly with
* untextures (but colored) terrain tiles.
*/
class OSGEARTHUTIL_EXPORT LODBlending : public TerrainEffect,
public LODBlendingOptions
{
public:
/** construct a new blending effect */
LODBlending();
LODBlending(const LODBlendingOptions& options);
public: // TerrainEffect interface
void onInstall(TerrainEngineNode* engine);
void onUninstall(TerrainEngineNode* engine);
protected:
virtual ~LODBlending() { }
void init();
osg::ref_ptr<osg::Uniform> _delayUniform;
osg::ref_ptr<osg::Uniform> _durationUniform;
osg::ref_ptr<osg::Uniform> _vscaleUniform;
};
} } // namespace osgEarth::Util
#endif // OSGEARTHUTIL_LOD_BLENDING_H
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