Hi everyone,
I'm wondering about a strange thing I noticed when trying to use
osgUtil::pushModelViewMatrix() directly:
- Suppose I have a class where I store a ref pointer on a RefMatrix:
osg::ref_ptr<osg::RefMatrix> _modelView.
- Suppose in that class I have a function called during the cull traversal:
draw(osgUtil::CullVisitor& cv) {
osg::Matrixd mat = .... // I compute the matrix I want to use as model
view here.
#if STRANGE_BEHAVIOR
_modelView->set(mat)
cv.pushModelViewMatrix( _modelView.get(), osg::Transform::RELATIVE_RF)
#else
cv.pushModelViewMatrix(new osg::RefMatrix(mat),
osg::Transform::RELATIVE_RF)
#endif
// drawing something here with a member geode object:
_geode->accept(cv);
cv.popModelViewMatrix();
}
=> If I try the "STRANGE_BEHAVIOR" section, I get nothing displayed
properly (even it the OSG Stats report a good number of vertices). If I use
the other section everythig is fine...
Any idea what I'm missing here ?? I think it would be better if I could
avoid creating a new object on the heap for each call to this function :-)
cheers,
Manu.
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