Re: [osg-users] ortho2D camera and frustum camera layering(render order)
Hi Michael, If you want to have a series of layers of 2D and 3D content then you simply set up you Camera's with an appropriate RenderOrder number, the ordering goes : PRE_RENDER, from negative to positive RenderOrder number POST_RENDER, from negative to positive RenderOrder number In your case you 2D background you'd probably just draw with a PRE_RENDER, the 3D as defaults, and the 2D foreground as POST_RENDER. The only other item you'd need to tweak is that the clear of the colour buffer on the 3D and 2D foreground Camera's should be disabled. Robert. On Tue, Jul 28, 2009 at 7:43 PM, Michael Irby IImi...@wms.com wrote: Hi, Yes, I started with this example but it does not completely accomplish what I need. I need more than a hud and there can be N amount of 2D and 3D cameras in the graph. So for an example something like a 2D camera in front with 2D content, then a 3D camera with 3D content and then another 2D camera behind that with 2D content. There can be many layers of 2D and 3D geometry. And the POST_RENDER I believe only serves for having a hud above 3D content. What I am writing must support 2D and 3D graphics living together in the scene graph and have a way to control the layering of the the different cameras. The NESTED_RENDER for cameras seems like it would serve my purpose, but I think that is only for slave cameras? It would be great to be able to have a nested render on cameras in the graph and be able to give an order then render for each camera should happen. Thank you! Cheers, Michael -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15564#15564 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ortho2D camera and frustum camera layering(render order)
Hi, Yes, I started with this example but it does not completely accomplish what I need. I need more than a hud and there can be N amount of 2D and 3D cameras in the graph. So for an example something like a 2D camera in front with 2D content, then a 3D camera with 3D content and then another 2D camera behind that with 2D content. There can be many layers of 2D and 3D geometry. And the POST_RENDER I believe only serves for having a hud above 3D content. What I am writing must support 2D and 3D graphics living together in the scene graph and have a way to control the layering of the the different cameras. The NESTED_RENDER for cameras seems like it would serve my purpose, but I think that is only for slave cameras? It would be great to be able to have a nested render on cameras in the graph and be able to give an order then render for each camera should happen. Thank you! Cheers, Michael -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15564#15564 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] ortho2D camera and frustum camera layering(render order)
Hi, I have a 2D ortho camera that contains 2D geometry and a 3d frustum camera that contains all my 3d geometry. Is there any way for me to be able to layer the drawing order of these cameras. That is a quick way that does not require custom code. I know there are slave cameras and nested render but these camera are added to the root node of the scene graph and not as a slave camera to the view. Thank you! Cheers, Michael -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15519#15519 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ortho2D camera and frustum camera layering(render order)
Hi Michael, Have a look at the osghud example as this illustrates exactly what you are trying to achieve. One of the keys to setting up the HUD camera is to set it's RenderOrder to POST_RENDER. Robert. On Mon, Jul 27, 2009 at 8:09 PM, Michael Irby IImi...@wms.com wrote: Hi, I have a 2D ortho camera that contains 2D geometry and a 3d frustum camera that contains all my 3d geometry. Is there any way for me to be able to layer the drawing order of these cameras. That is a quick way that does not require custom code. I know there are slave cameras and nested render but these camera are added to the root node of the scene graph and not as a slave camera to the view. Thank you! Cheers, Michael -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15519#15519 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
