[osg-users] TrackBall Rotation
Hi, How does OSG uses the Rotation matrix computed by TrackBall functionality?. Whether setviewbyMatrix functionality can use rotation matrix for viewing the rotation. Thank you. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9480#9480 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] TrackBall Rotation
robertosfield wrote: The osgViewer::Viewer updateTraversal() copies the trackball matrix across to the viewers camera on each frame. Go look at the code. It doesn't use the Rotation matrix as there is no rotation matrix in the TrackballManipulator, just a complete 4x4 matrix. Robert. -- Post generated by Mail2Forum Thanks Robert. My problem is that I have to work only on OSG 1.1 version. So the query posted was related to 1.1 verrsion. Hence I could not find UpdateTraversal call in 1.1. Can anyone help me figuring out the way Viewer updates the input from trackball rotation. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9484#9484 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgCameragroup sample
Hi, To run osgCameraGroup, a camera config file is required. Where can I get this config file. Thank you. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9292#9292 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Mouse events are default in OpenScenegraph
I have downloaded, the latest version. Before getting into the new version. One final question, Does this latest version of osg, has built-in arc-ball rotation support? If not Should I implement it of my own? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8502#8502 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Mouse events are default in OpenScenegraph
Sorry, if my language was hard to understand. I Just want to know two basic things in OSG. ( 1 ) When we define use osg::ref_ptrMyKeyboardMouseCallback kbmcb = new MyKeyboardMouseCallback; Does OSG invokes Mouse Action caller ( just like glutMouseFunc and glutMouseMotion does). or Do we need to write our own handler? ( 2 ) Do we need to implement ArcBall rotation explicitly for an OSG App Or Does it happen, When you invoke use osg::ref_ptrMyKeyboardMouseCallback kbmcb = new MyKeyboardMouseCallback. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8474#8474 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] ArcBall Rotation
Where can I find ArcBall rotation implementation. I tried to find in Web. But could not succed. Even samples in SDK do not have any arc ball sample. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8305#8305 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Mesh generation using Vertex Buffer and Index Buffer in OpenSceneGraph
Assume that I have a Vertex Buffer and Index Buffer, Using OpenSceneGraph, Can
I render a mesh, Similar to the way, we use
glVertexBuffer and glIndexBuffer and glDrawElements in OpenGL, to render a
mesh.
or Using glVertex3fv in the following way
Code:
glBegin(GL_TRIANGLES);
for (i = 0; i 20; i++) {
/* color information here */
glVertex3fv(vdata[tindices[i][0]][0]);
glVertex3fv(vdata[tindices[i][1]][0]);
glVertex3fv(vdata[tindices[i][2]][0]);
}
glEnd();
Are there any commands, similar to glVertexBuffer, glIndexBuffer
glDrawElements and glVertex3fv.
I tried with osgDeluanay, but not getting the correct output.
Please consider this a newbie question.
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http://forum.openscenegraph.org/viewtopic.php?p=8357#8357
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[osg-users] Mouse events are default in OpenScenegraph
Does openscenegraph handles mouse motion events by default? Even when I am commenting the mouse handlers in the OpenSceneGraph samples, scene is still accepting the mouse events. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8373#8373 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Wrong output with osgdelaunay sample
So you mean to say osg cannot triangulate closed meshes. Is this the limitation of osgdelaunay or deluanay algorithm itself? Are there any alternative way to triangulate closed meshes using osg? -- Read this topic online here: http://osgforum.tevs.eu/viewtopic.php?p=5611#5611 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Wrong output with osgdelaunay sample
Anybody out there to help me. -- Read this topic online here: http://osgforum.tevs.eu/viewtopic.php?p=5381#5381 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
