root/OpenSceneGraph/trunk/examples/osgshaders/osgshaders.cpp @ 13374

Revision 6941, 2.6 kB (checked in by robert, 8 years ago)

From Martin Lavery and Robert Osfield, Updated examples to use a variation of the MIT License

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1/* OpenSceneGraph example, osgshaders.
2*
3*  Permission is hereby granted, free of charge, to any person obtaining a copy
4*  of this software and associated documentation files (the "Software"), to deal
5*  in the Software without restriction, including without limitation the rights
6*  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7*  copies of the Software, and to permit persons to whom the Software is
8*  furnished to do so, subject to the following conditions:
9*
10*  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
11*  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12*  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
13*  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
14*  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
15*  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
16*  THE SOFTWARE.
17*/
18
19/* file:        examples/osgglsl/osgshaders.cpp
20 * author:        Mike Weiblen 2005-04-05
21 *
22 * A demo of the OpenGL Shading Language shaders using core OSG.
23 *
24 * See http://www.3dlabs.com/opengl2/ for more information regarding
25 * the OpenGL Shading Language.
26*/
27
28#include <osg/Notify>
29#include <osgGA/GUIEventAdapter>
30#include <osgGA/GUIActionAdapter>
31#include <osgDB/ReadFile>
32#include <osgUtil/Optimizer>
33#include <osgViewer/Viewer>
34
35#include "GL2Scene.h"
36
37using namespace osg;
38
39///////////////////////////////////////////////////////////////////////////
40
41class KeyHandler: public osgGA::GUIEventHandler
42{
43    public:
44        KeyHandler( GL2ScenePtr gl2Scene ) :
45                _gl2Scene(gl2Scene)
46        {}
47
48        bool handle( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& )
49        {
50            if( ea.getEventType() != osgGA::GUIEventAdapter::KEYDOWN )
51                return false;
52
53            switch( ea.getKey() )
54            {
55                case 'x':
56                    _gl2Scene->reloadShaderSource();
57                    return true;
58                case 'y':
59                    _gl2Scene->toggleShaderEnable();
60                    return true;
61            }
62            return false;
63        }
64
65    private:
66        GL2ScenePtr _gl2Scene;
67};
68
69///////////////////////////////////////////////////////////////////////////
70
71int main(int, char **)
72{
73    // construct the viewer.
74    osgViewer::Viewer viewer;
75
76    // create the scene
77    GL2ScenePtr gl2Scene = new GL2Scene;
78
79    viewer.setSceneData( gl2Scene->getRootNode().get() );
80
81    viewer.addEventHandler( new KeyHandler(gl2Scene) );
82
83    return viewer.run();
84}
85
86/*EOF*/
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