[Gtkradiant] [Bug 409] New: 1.2.4-nightly-02012002 Linux - mangled textures in 3D view

[gtkradiant@zerowing.idsoftware.com]

http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=409

           Summary: 1.2.4-nightly-02012002 Linux - mangled textures in 3D
                    view
           Product: GtkRadiant
           Version: 1.2.1
               URL: http://24.128.130.159/radiant/oops.html
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: editor
        AssignedTo: ttimo@idsoftware.com
        ReportedBy: tim@algernonsystems.com


Correct me if I'm wrong, but I beleive that each "square" texture is actually
drawn as two adjacent triangles. With that supposition in mind, what appears to
be happening is that the program is only drawing one of each of the two
triangles for each brush surface. If you right-click the 3D view and fiddle
around left to right and up and down, eventually it will draw "all" of a given
brush surface, but each time one brush "completes", another freaks out. This is
merely the most obvious effect of this problem. Closer examination reveals that
there also appeaers to be some weirdness in the Z-clipping because sometimes
whole brushes appear in wireframe or disappear entirely when the viewport is
very close to them or a larger brush should be blocking them from view entirely.
  This problem does not affect the program's ability to edit maps, except
insofar as the user has difficulty seeing where he or she is or what's out there
and where it begins and ends.
  Check the following URL to see some screen captures of these problems.

http://24.128.130.159/radiant/oops.html

Hardware/software details:
HP Kayak XU800
(2) 733MHz PIII CPUs
512MB RDRAM
ATI Radeon DDR 64MB
Xi Graphics Summit DX Gold 2.1 X Server
XFree86 4.1.0
Slackware Linux 8.2 (kernel 2.4.5)
Nothing weird running in the background, no strange services or other GL apps
running. Happens 100% of the time. The same maps edited on the same editor
version on another machine (Compaq AP-550; Elsa Synergy-II; Windows 2000) look
fine.



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