[osg-users] Best usage of function: return ref_ptr or standard ptr?
Hi,
I have a function which I want to return a group, with two alternatives:
Code:
osg::ref_ptr osg::Group returnGroup()
{
osg::ref_ptr osg::Group group = new osg::Group;
...
return group;
}
Code:
osg::Group * returnGroup()
{
osg::Group * group = new osg::Group;
...
return group;
}
Which usage is better if garbage collection is desired?
Thank you!
Cheers,
Juan
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=45134#45134
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Array of geometries
Hi, I need to create an array of geometries. I'm not sure whether to use: Code: osg::Geometry** tube; ref_ptr ref_ptr Geometry tube; ref_ptr Geometry * tube; I want then to allocate the tube Geometry array as something like: Code: tube = new Geometry[pointList-size() - 1]; Thank you! Cheers, Juan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45136#45136 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OSG and OpenGL rendering does not coincide
Hi, I'm reframing my AR question like this: Given same projection matrices and model view matrices in OpenGL and OSG, my rendering results do not coincide exactly. The OSG ones are slightly displaced, but the on-screen rotation coincide. There is no skewness in either. I think the OpenGL results are the correct ones. Where are the places this error could be? My windows size coincide, so I think the viewport is fine. (640x480). Thank you! Cheers, Juan PS: Note to moderator: replies to my posts are not being approved. See http://forum.openscenegraph.org/viewtopic.php?t=9485 . -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44172#44172 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Setting modelview matrix with viewer.getCamera()-setViewMatrix(modelViewMatrix) not working
Hi, The problem seemed to be twofold: * I was first using OSG 2.8.3, for which viewer.getCamera()-setViewMatrix(modelViewMatrix) required that modelViewMatrix were a cv::Matrixd. This is not the case with 3.0.1, which works with cv::Matrix too. * Like filip suggested, I used viewer.getCameraManipulator()-setByMatrix(modelViewMatrix) in the callback. It worked. I still have some registration glitches in the modeview matrix compared to my desired result, but maybe my original modelview matrix is wrong. * I tried Paul's solution with both getCamera()-setViewMatrix() and getCameraManipulator()-setByMatrix(), but I wasn't able to reproduce the desired result (that's the solution in the Quickstart guide anyway, so I guess I may be missing something). Thank you! Cheers, Juan Herrera -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44125#44125 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
