You are right. Last night I created a virtual desktop of 2100x768 and display mode of 1024x768, then ran several fullscreen GL xscreensaver hacks. All of them displayed fine. I haven't looked at the source to the hacks, but I assume they look at the current display mode and the create a 3D window of that size, 1024x768 in this case. I guess the GL screensavers may be draw their 3D window at starting at 0,0. The only time I see the rendering fail is when the actual 3D window(s) itself exceeds 2048. For instance if I resize a glxgears window, it will render fine up to 2048, then the window goes blank, or if I run several instances of glxgears lined up, the one that exceeds 2048 will go blank.
perhaps the limit is actually 2047? that wouldn't seem to be the case since rendering still happens at 2048 it's just full of arifacts. perhaps it is bandwidth. I downloaded the newest version of xscreensaver last night. the new behavior is to create 2 instances of the GL hack based on the xinerama info and display one on head head. the hack running on the first head displays fine; the one running on the second head shows the corruption. So it seems to have something to do with 2048. Alex --- Michel Dänzer <[EMAIL PROTECTED]> wrote: > On Mon, 2003-10-13 at 06:13, Alex Deucher wrote: > > You can have as big a virtual desktop as you want so long as the > total > > 3D contexts are not greater than 2048 in either direction. > > Wrong. The 2048 limit is for the virtual location of the right and > bottom edges of 3D windows. The 3D engine couldn't care less about > what > the CRTCs do with the data it renders, except for the bandwidth. > > > -- > Earthling Michel Dänzer \ Debian (powerpc), XFree86 and DRI > developer > Software libre enthusiast \ > http://svcs.affero.net/rm.php?r=daenzer > __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
