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
|
#include <Producer/Camera>
#include <osgProducer/OsgSceneHandler>
#include <osgDB/ReadFile>
#include <osg/Node>
#include <osg/Vec3>
int main(int argc, char **argv)
{
// Load your OSG database
osg::ref_ptr<osg::Node> cow = osgDB::readNodeFile( "cow.osg" );
if( !cow.valid() )
{
std::cerr << "\n\tOoops, this application needs the \"cow.osg\" model.\n\n";
return 1;
}
// Set up the Scene Handler
Producer::ref_ptr<osgProducer::OsgSceneHandler> sceneHandler = new osgProducer::OsgSceneHandler;
sceneHandler->getSceneView()->setDefaults();
sceneHandler->getSceneView()->setSceneData( cow.get() );
// Create a Producer Camera and pass it the scene handler
Producer::ref_ptr<Producer::Camera> camera = new Producer::Camera;
// Optional
camera->getRenderSurface()->setWindowRectangle( 100, 100, 800, 600 );
camera->setSceneHandler( sceneHandler.get() );
// Camera manipulation stuff
osg::BoundingSphere bs = cow->getBound();
osg::Vec3 center = bs.center();
float radius = bs.radius() * 3;
float viewingAngle = 0.0;
do {
// Rotate around the cow...
viewingAngle += osg::DegreesToRadians(1.0);
osg::Vec3 eye = center + osg::Vec3( radius * cos(viewingAngle),
radius * sin(viewingAngle),
0);
camera->setViewByLookat( eye[0], eye[1], eye[2],
center[0], center[1], center[2],
0, 0, 1 );
// Click!
camera->frame();
} while( camera->getRenderSurface()->isRealized() );
}
|
