I though dirty() called dirtyBound().. Anyway, tried it still have problem, with billboards popping in and out of view when im moving around.. :/
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Art Tevs Sent: 23. april 2008 18:09 To: OpenSceneGraph Users Subject: Re: [osg-users] updating geometry and textures Hi, I think if you change your geometry on the fly, you have to call dirtyBound() of course. Otherwise the old bound can be used during the cull traversal and your node maybe culled. cheers, Art --- [EMAIL PROTECTED] schrieb: > it seems now that the objects only dissapear at > certain camera position's. could there be an error > with the culling using SceneView? > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of [EMAIL PROTECTED] > Sent: 23. april 2008 17:30 > To: [email protected] > Subject: [osg-users] updating geometry and textures > > I have a 'container' class A which inherit from > Group, which has several nodes, drawables etc. I > also have a controller class B that calls some > update methods on A to update the geometry of some > of A's member ( B has a pointer to A objects.. is > that 'allowed'?). I am wondering if im doing the > update correctly.. I render stuff but then suddenly > everything dissapear.. Im pretty sure it's not the > osg, but If you could see if im doing the updates > correct i would appreciate it very much, since i > didnt find any info on this. > > The geometry in A is in a Vec3Array vertices, which > is cleared and given new data for each time updated. > Afterwards i use "DrawArrays->set()" to sett > correct primitive set and size. At the end I call > vertices->dirty(). > > Bwt. I do not explisitly need to call dirtyBound() > do i? > > I also have a class B same as A but which creates a > billboard texture and so on, and i am frequently > updating the image data. I've set both the image and > texture's setDataVariance to DYNAMIC and in the to > update the image i call: > > _image->setImage(_width, _height, 1, GL_RGBA, > GL_RGBA, GL_UNSIGNED_BYTE, pixels, > osg::Image::USE_NEW_DELETE); > > And also, when i create a texture from a image, is > the texture allways created as a power-of-two > texture? scaling the texcoords? > > Thanks in advance! > > Erlend > > > > void Render() > { > // save matrices > glPushAttrib(GL_ALL_ATTRIB_BITS ); > glMatrixMode(GL_PROJECTION); > glPushMatrix(); > glMatrixMode(GL_TEXTURE); > glPushMatrix(); > glMatrixMode(GL_MODELVIEW); > glPushMatrix(); > > // set correct view > glLoadIdentity(); > _renderer->rotate_eyepos(); > _renderer->translate_sub_eyepos(); > > // set osg view > GLint viewParams[4]; > glGetIntegerv( GL_VIEWPORT, viewParams ); > _sceneViewer->setViewport(viewParams[0], > viewParams[1], viewParams[2], viewParams[3]); > GLfloat glMat[16]; > glGetFloatv( GL_PROJECTION_MATRIX, glMat ); > > _sceneViewer->setProjectionMatrix(osg::Matrix(glMat)); > glGetFloatv( GL_MODELVIEW_MATRIX, glMat ); > _sceneViewer->setViewMatrix(osg::Matrix(glMat)); > > // update timestamp > double time_since_start = _timer.delta_s( > _start_tick, _timer.tick() ); > _frameStamp->setReferenceTime( time_since_start ); > _frameStamp->setFrameNumber( _frameNumber++ ); > _sceneViewer->setFrameStamp( _frameStamp.get() ); > > // render > _sceneViewer->update(); > _sceneViewer->cull(); > _sceneViewer->draw(); > > // reset matrices > glMatrixMode(GL_TEXTURE); > glPopMatrix(); > glMatrixMode(GL_PROJECTION); > glPopMatrix(); > glMatrixMode(GL_MODELVIEW); > glPopMatrix(); > glPopAttrib(); > }> _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > __________________________________________________________ Gesendet von Yahoo! Mail. Mehr Möglichkeiten, in Kontakt zu bleiben. http://de.overview.mail.yahoo.com _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
