root/OpenSceneGraph/trunk/examples/osgmultitexture/osgmultitexture.cpp @ 13259

Revision 12529, 3.6 kB (checked in by robert, 4 years ago)

Replaced .osg with .osgt file usage

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1/* OpenSceneGraph example, osgmultitexture.
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#include <osgViewer/Viewer>
20
21#include <osg/Notify>
22
23#include <osg/Texture2D>
24#include <osg/TexEnv>
25#include <osg/TexGen>
26
27#include <osgDB/Registry>
28#include <osgDB/ReadFile>
29
30#include <osgGA/TrackballManipulator>
31#include <osgGA/FlightManipulator>
32#include <osgGA/DriveManipulator>
33
34#include <osgUtil/Optimizer>
35
36#include <iostream>
37
38int main( int argc, char **argv )
39{
40    // use an ArgumentParser object to manage the program arguments.
41    osg::ArgumentParser arguments(&argc,argv);
42   
43    // construct the viewer.
44    osgViewer::Viewer viewer;
45
46    // load the nodes from the commandline arguments.
47    osg::Node* rootnode = osgDB::readNodeFiles(arguments);
48   
49    // if not loaded assume no arguments passed in, try use default mode instead.
50    if (!rootnode) rootnode = osgDB::readNodeFile("cessnafire.osgt");
51   
52    if (!rootnode)
53    {
54        osg::notify(osg::NOTICE)<<"Please specify a model filename on the command line."<<std::endl;
55        return 1;
56    }
57   
58    osg::Image* image = osgDB::readImageFile("Images/reflect.rgb");
59    if (image)
60    {
61        osg::Texture2D* texture = new osg::Texture2D;
62        texture->setImage(image);
63
64        osg::TexGen* texgen = new osg::TexGen;
65        texgen->setMode(osg::TexGen::SPHERE_MAP);
66
67        osg::TexEnv* texenv = new osg::TexEnv;
68        texenv->setMode(osg::TexEnv::BLEND);
69        texenv->setColor(osg::Vec4(0.3f,0.3f,0.3f,0.3f));
70
71        osg::StateSet* stateset = new osg::StateSet;
72        stateset->setTextureAttributeAndModes(1,texture,osg::StateAttribute::ON);
73        stateset->setTextureAttributeAndModes(1,texgen,osg::StateAttribute::ON);
74        stateset->setTextureAttribute(1,texenv);
75       
76        rootnode->setStateSet(stateset);
77    }
78    else
79    {
80        osg::notify(osg::NOTICE)<<"unable to load reflect map, model will not be mutlitextured"<<std::endl;
81    }
82
83    // run optimization over the scene graph
84    osgUtil::Optimizer optimzer;
85    optimzer.optimize(rootnode);
86     
87    // add a viewport to the viewer and attach the scene graph.
88    viewer.setSceneData( rootnode );
89   
90    // create the windows and run the threads.
91    viewer.realize();
92
93    for(unsigned int contextID = 0;
94        contextID<osg::DisplaySettings::instance()->getMaxNumberOfGraphicsContexts();
95        ++contextID)
96    {
97        osg::Texture::Extensions* textExt = osg::Texture::getExtensions(contextID,false);
98        if (textExt)
99        {
100            if (!textExt->isMultiTexturingSupported())
101            {
102                std::cout<<"Warning: multi-texturing not supported by OpenGL drivers, unable to run application."<<std::endl;
103                return 1;
104            }
105        }
106    }
107
108    return viewer.run();
109}
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