Hello,
I'm trying to render a box in OpenSceneGraph, which should be very
simple. However, I just don't get a box in my viewer and I can't seem
to find the mistake.
This is my code for the box:
osg::Group* root = new osg::Group();
osg::Box* cube = new osg::Box(osg::Vec3f(0.0f, 0.0f, 0.0f), 1.0f,
1.0f, 1.0f);
osg::ShapeDrawable* cubeDrawable = new osg::ShapeDrawable(cube);
osg::Geode* geode = new osg::Geode();
if (!geode->addDrawable(cubeDrawable) ) {
std::cerr << "Error adding drawable to geode" << std::endl;
}
if (!root->addChild(geode) ) {
std::cerr << "Error adding geode to root" << std::endl;
}
To view this, I'm using osgProducer:
osgProducer::Viewer viewer;
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
viewer.setSceneData(root);
viewer.realize();
while(!viewer.done()) {
viewer.sync();
viewer.update();
viewer.frame();
}
At first I don't see anything in my viewer. When I search through the
scene manually, I find something, but it is not a box. It looks like a
plane or a part of a plane, which sometimes seems to be hidden behind
something. When I move the scene, this object does not move
constantly, but jumps from one position to the next.
Where is the mistake? Is it a problem, that I did not associate a
StateSet? Should I add a light source? Am I unable to use osgProducer?
Or does the code work fine with you and I somehox got a corrupted
version of OpenSceneGraph?
Kind regards,
Thomas
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