Re: [osg-users] problem with translparency in ac3d model loaded in OSG
Hi, On Thursday 16 October 2008 12:38, Robert Osfield wrote: > It sounds like the ac3d loader hasn't placed your canopy in the > transparent bin. I'm not the author of this loader, nor a user of > ac3d so I can't really help on the low level details. You'll need to > look at the ac3d plugin to see if there if what is going on w.r.t > binning your data, or if you want others to ptich in a help solve the > problem you'll need to provide an example dataset that illustrates the > problem. Well, these objects are placed in the transparent bin by the ac3d loader. Common problems: * The objects are that big, that the by drawable depth sorting algorithm cannot fix these dept ordering problems. Note that the sorting is done per drawable and not per triangle. * Partly transparent textures on some objects will move that object into the transparent bin. If such objects are too huge then sorting might lead to strange effects. Avoid textures that have any transparent pixel if you do not need that. If these are not the case, please provide a test case ... Greetings Mathias -- Dr. Mathias Fröhlich, science + computing ag, Software Solutions Hagellocher Weg 71-75, D-72070 Tuebingen, Germany Phone: +49 7071 9457-268, Fax: +49 7071 9457-511 -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Florian Geyer, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Prof. Dr. Hanns Ruder Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] problem with translparency in ac3d model loaded in OSG
Hi Juan, It sounds like the ac3d loader hasn't placed your canopy in the transparent bin. I'm not the author of this loader, nor a user of ac3d so I can't really help on the low level details. You'll need to look at the ac3d plugin to see if there if what is going on w.r.t binning your data, or if you want others to ptich in a help solve the problem you'll need to provide an example dataset that illustrates the problem. Please note that the OSG the order in the scene graph makes no difference to rendering order as state sorting and bin assignment will dictate the rendering order. This means if you want a specific rendering order you'll need to use bins to order them. Robert. On Thu, Oct 16, 2008 at 10:35 AM, Juan Sebastian Casanueva <[EMAIL PROTECTED]> wrote: > Hi, > > I am doing an aircraft 3d model, using the Ac3d modeller, and I am having > problems with the transparent canopy in OSG. > In Ac3d, the canopy is transparent and you can see the cockpit inside. This > is achieved by puting the tranparent cockpit last in the object hierarchy. > However, when I use osgviewer to load the ac3d model, some of the cockpit > elements (pilot, seat, etc..) dissapear and reappear when you move the > camera. > Has anybody had this problem before? anybody know how to solve this problem? > thanks very much > > Juan > > ___ > 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
[osg-users] problem with translparency in ac3d model loaded in OSG
Hi, I am doing an aircraft 3d model, using the Ac3d modeller, and I am having problems with the transparent canopy in OSG. In Ac3d, the canopy is transparent and you can see the cockpit inside. This is achieved by puting the tranparent cockpit last in the object hierarchy. However, when I use osgviewer to load the ac3d model, some of the cockpit elements (pilot, seat, etc..) dissapear and reappear when you move the camera. Has anybody had this problem before? anybody know how to solve this problem? thanks very much Juan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
