The SceneView's camera is there just to set up viewports, view and project matrices parameters, using as a camera setting to draw to the main window, the render to texture options are not supported.
If you want to use them then add the CameraNode directly into the scene graph, and add you subgraph you want to render into it, than add whole scene graph into the SceneView.
Robert.
On 9/13/06, Jason K. Howlett <[EMAIL PROTECTED]> wrote:
Hi,
I have the following (pseudo) code in a GLUT app:
osg::SceneView sceneView = new osgUtil::SceneView;
sceneView->setDefaults( osgUtil::SceneView::NO_SCENEVIEW_LIGHT |
osgUtil::SceneView::COMPILE_GLOBJECTS_AT_INIT );
osg::CameraNode camera = sceneView->getCamera();
camera->setRenderOrder(osg::CameraNode::PRE_RENDER);
... Camera setup stuff ...
osg::Texture2D texture;
... Texture setup stuff ...
camera->setRenderTargetImplementation(osg::CameraNode::FRAME_BUFFER_OBJECT);
camera->attach(osg::CameraNode::COLOR_BUFFER, texture.get());
osg::Group sceneRoot = SetupScene();
sceneView->setSceneData( sceneRoot.get() );
sceneView->init();
... Run rest of app, update, cull, draw, etc. ...
My problem is that the FBO is never created. The rendering for camera
appears to go to the back buffer. If I place this camera setup in a
"regular" OSG app using osgProducer::Viewer, then everything works fine.
Am I missing something that SceneView doesn't provide, i.e., is there
some other function or object that needs to be called to create the FBO
and setup the camera properly to use it?
Hopefully this is enough information to make sense of the problem.
Thanks for the help,
Jason
--
Jason K. Howlett
U.S. Army Aeroflightdynamics Directorate
NASA Ames Research Center Phone: 650-604-5374
Mail Stop T12B-2 Fax: 650-604-2414
Moffett Field, CA 94035-1000 mailto: [EMAIL PROTECTED]
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