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Hello,
im sorry to keep asking for help but
im totaly stuck on trying to draw prmitive
geometry to a 2D ortho screen in OSG.
Ive been experimenting with both the
OSGhud and OSG geometry examples an i have
just ended up with a huge mess, with no visible
results.
I have taken the OSG geometry example
and i can compile and run it fine and see
the lines and polygons. I have then
converted the viewer camera to a 2Dorth projection
matrix, but in doing so i get no geomtry
visible. In addition it seems the gemoetry
example is still rendering the geomtry in
3d space with Vec3 required for the vertex
points,
but in the native opengl examples i
have seen on the net they use Vec2 for simple
X,Y.
this is the original main code from
the OSG geometry example
int main(int, char **){ // create the modelosg::Group* root = new osg::Group;root->addChild( createScene() ); root->addChild( createBackground() ); //osgDB::writeNodeFile(*root,"geoemtry.osg");osgViewer::Viewer viewer; // add model to viewer.viewer.setSceneData( root ); return viewer.run();}
can any help me by showing how the viewer camera can be set to 2D orth, no quad, no background,so that one can still see the geometry rendered on screen.
Everytime i set it to 2D ortho no geometry is ever visible.
Any help appreciated, im tearing my hair out, and have no idea what to try next. Thanks
Peter DeSantis [EMAIL PROTECTED] Jumbo Vision International Pty Ltd Unit 2 ,1 Aitken Way Kewdale WA 6105 Australia Tel: 61 8 9353 6200 Fax: 61 8 9353 6211 |
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