Hello, I just posted a new thread titled "comment on new Depth Peeling example" for further discussion of the depth peeling stuff.
Regards, Joachim Paul Melis wrote: > Hello Steffen, > > Steffen Frey wrote: > >>> Can you detail the depth peeling example a bit more (the code doesn't >>> have any hints), e.g. >>> - what are the h.w. requirements for running it? >>> - is it supposed to be stable? (I get a segfault here) >>> - can you use any scene with transparency, or is there something special >>> to set up with renderbins, etc.? >> >> There is actually a LaTex file I wrote in order to clarify things. >> Unfortunately, it didn't make it into the osgdepthpeeling folder. So >> it's attached to this mail for a start and probably we should add it >> (or maybe a plain text version) to the folder for future releases. >> Transparency should simply be ignored, which is ok for depth peeling I >> think. > > What exactly do you mean by "ignored"? Does it mean that transparency > information of geometry is not used to control the depth peeling > process? Or that transparency is ignored completely? The reason I'm > interesented in depth peeling in the first place is that it can provide > correct transparency rendering without explicit geometry sorting. > Rendering with depth peeling of geometry that doesn't have transparency > seems a bit useless. > >> It's considered to be stable in the way, that I tested it extensively >> on a few machines and everything worked out fine. But actually I would >> have been rather surprised if nobody had experienced problems with it. >> Please be more precise on what it took for the segfault to occur. > > Nothing special, I just ran osgdepthpeeling cow.osg. The program runs > for a few seconds, showing nothing but the text and fps counter at the > bottom of the screen. After that it goes down. I just ran it and got a > "Illegal Instruction" with the following stack trace: -- Joachim E. Vollrath University of Stuttgart Institute for Visualization and Interactive Systems (VIS) web: http://www.vis.uni-stuttgart.de/~vollrajm/ mail: [EMAIL PROTECTED] phone: 49.711.7816.403 fax: 49.711.7816.340 german postal address: Dipl. Inf. Joachim E. Vollrath Universitaet Stuttgart, Institutsverbund Informatik Institut fuer Visualisierung und Interaktive Systeme Universitaetstrasse 38 70569 Stuttgart GERMANY _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
