I double checked and it appears to work now. I guess I have not tried hard enough the first time.
Thank you -Fred ----- Mail original ----- De: "Sebastian Messerschmidt" Objet: Re: [osg-users] Sharing depth buffer between fbos They are set up in the exact same way. So both are using frame buffer objects. As I said, it is important to set the second camera to NOT write to depth buffer. It might be coincidence, but I just use Nvidia cards, so this might be a "specialty" of Nvidia drivers. cheers Sebastian > Hi Sebastian, > > I am using slave cameras with different render order num. > Are your cameras both using a different fbo (both calling > setRenderTargetImplementation(Camera::FRAME_BUFFER_OBJECT) ) , or your second > camera is a child of the one with an fbo ? > > Regards, > -Fred > > > ----- Mail original ----- > De: "Sebastian Messerschmidt" > Objet: Re: [osg-users] Sharing depth buffer between fbos > > Hi Frederic, > > I'm using a similar setup. I simply attach the the depth-buffer-texture > to the first RTT pass and later on bind it to multiple passes that need > to have depth writes disabled. > This way everything works as expected. > My RTT cameras are childs of the root node of the scene. > Setting the render order of the cameras explicitly did the trick for me. > > cheers > Sebastian >> Hi All, >> >> I need to initialize the content of the depth buffer of a FBO with the >> result of a RTT pass where I setup a DEPTH_ATTACHMENT to a depth texture. >> IOW, I want two fbos with the same depth buffer, the second being read only. >> AFAICS in gDebugger, the attachment to the second fbo cancels the attachment >> to the first. >> The only method I can think of at the moment, is to render a screen aligned >> quad with the depth texture bound to it and use a fragment shader to >> initialize the depth buffer of the second fbo using gl_FragDepth. >> >> So what do you think of that and how would you do something like that ? _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
