I have to laugh at myself for this brilliant idea! Alpha blending is mutually exclusive with occlusion. In otherwords, the parts that I want occluded by the "invisible" portion, if that invisible portion is alpha blended, will be visible. However, I want a copy of the invisible geometry so that I can draw it again as barely visible for matching the video.
Judie On Apr 16, 7:57 am, Judie <[EMAIL PROTECTED]> wrote: > The application is for "augemented reality." Here is an > example:http://www.youtube.com/watch?v=P9KPJlA5yds > > I have realized another method. Instead of disabling and enabling the > color buffer, I will set the transparency to 100% transparent on the > objects I don't want to be visible. > > Judie > > On Apr 16, 7:23 am, "Robert Osfield" <[EMAIL PROTECTED]> wrote: > > > > > Hi Judie, > > > On Wed, Apr 16, 2008 at 3:16 PM, Judie <[EMAIL PROTECTED]> wrote: > > > High level explanation of what I am trying to do: > > > > Replace some of the geometry in the scene with live camera feed. But > > > in order to do this, I still need the actual geometry in the scene to > > > modify the depth buffer as if it were there even though it is not > > > visible. > > > What do you mean by "replace some geometry in the scene with a live > > camera feed"? > > > What you say actual geometry what do you mean? > > > Higher level please I still have little clue about what you are trying to > > do. > > > The need for this understanding is that I can't see any reason for you > > piling into the code you are using, messing around with lowel level > > stuff like RenderBin/RenderStage/CullVisitor seems incredibly > > premature and very likely inappropriate. I have no clue why you want > > to go off on do this in your instance. > > > So please could you try explaining what type of application you have, > > what type of data your are trying to integrate and the results you are > > after. > > > Robert. > > _______________________________________________ > > osg-users mailing list > > [EMAIL > > PROTECTED]://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph... > > _______________________________________________ > osg-users mailing list > [EMAIL > PROTECTED]://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph...- > Hide quoted text - > > - Show quoted text - _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
