<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div></div><div><br><div><div>Le 5 avr. 08 à 17:54, chris clepper a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite">You want to sort by Z which requires special depth sorting code in the external. The model object uses a display list so you would have to stop using that and move to vertex arrays for decent performance. <br><br><div class="gmail_quote"> On Sat, Apr 5, 2008 at 7:21 AM, marius schebella <<a href="mailto:marius.schebella@gmail.com">marius.schebella@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> but I have the impression that some program manage to solve that<br> problem. I am not sure how, but if there is a solution, then it should<br> also be possible to use it in gem.<br> often I am not sure if people are talking about single objects or<br> secenes. but afaik it has something to do with a z-buffer, like it would<br> be possible to render the obj coordinates from the camera viewpoint into<br> a special alpha channel/buffer and then use that information to define<br> the renderorder for the texture. but not sure at all, if this is my<br> fantasy or if that is really how it works. I know that shadows also se<br> weird buffers and viewpoint manipulations to work.<br> thanks roman, cyrille for your answers, I am aware of the discussions in<br> the archive, maybe some more talk brings us further...<br> <font color="#888888">marius.<br> </font><div><div></div><div class="Wj3C7c"><br> cyrille henry wrote:<br> > hello,<br> ><br> > for what i know, this is a openGL limitation, with no generic hardware<br> > solution.<br> ><br> > cyrille<br> ><br> > marius schebella a écrit :<br> >> Hi,<br> >> I want to apply colors (or textures) with alpha values to obj. models<br> >> and then turn them around, but I am having problems if I rotate the<br> >> objects. this actually causes problems with standard geos, too...<br> >> I searched the archives for that problem but I found no real answer.<br> >> maybe because there is none?<br> >> what is necessary to get transparency working from all different<br> >> viewpoints? I tried to play around with GEMglDepthFunc and other<br> >> stuff, but not with the correct result. (correct maybe, but not what I<br> >> wanted.)<br> >> any help? thanks,<br> >> marius.<br> >><br> >> _______________________________________________<br> >> <a href="mailto:PD-list@iem.at">PD-list@iem.at</a> mailing list<br> >> UNSUBSCRIBE and account-management -><br> >> <a href="http://lists.puredata.info/listinfo/pd-list" target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br> >><br> >><br> ><br> <br> <br> _______________________________________________<br> <a href="mailto:PD-list@iem.at">PD-list@iem.at</a> mailing list<br> UNSUBSCRIBE and account-management -> <a href="http://lists.puredata.info/listinfo/pd-list" target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br> </div></div></blockquote></div><br><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:PD-list@iem.at">PD-list@iem.at</a> mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">UNSUBSCRIBE and account-management -> <a href="http://lists.puredata.info/listinfo/pd-list">http://lists.puredata.info/listinfo/pd-list</a></div> </blockquote></div><br></div></div></body></html>