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Thread: glPolygonMode rendering problems




glPolygonMode rendering problems
user name
2006-05-26 16:29:08
Hi,

I'm having some problems with a simple OpenGL program (as
described 
here: http
://forums.gentoo.org/viewtopic-t-464101.html) which is 
supposed to render a small red sphere inside a larger
wireframe one. 
It seems that when I switch the order of the OpenGL calls to
render 
them it renders the wireframe sphere as filled.

The problem also appears if I run the FOX toolkit
"glviewer" test and 
set the rendering mode to wireframe.

Other OpenGL programs (e.g: glxgears) seem to be fine...

Can anyone confirm (or not) that this happens on their
system as well, 
please? Possibly this is a known problem, but I couldn't
find any 
references to it elsewhere on the web.

Also, if anyone can suggest a fix, I'd be very grateful.

See below for my hardware/software setup. If anyone wants
screenshots 
I'd be happy to provide them.

Thanks,

Matt

Hardware: iBook G3 600MHz, ATI Rage 128 Mobility M3 LF (AGP)
graphics. 
Its the crystal white, dual USB model.

Software:
x11-base/xorg-x11-6.8.2-r6 (using r128 driver)
x11-base/opengl-update-3.0.0
app-admin/eselect-opengl-1.0.3
app-admin/eselect-1.0

compiled with: 
gcc (GCC) 3.4.3 20041125 (Gentoo 3.4.3-r1, ssp-3.4.3-0,
pie-8.7.7)

excerpt from glxinfo:
OpenGL vendor string: VA Linux Systems, Inc.
OpenGL renderer string: Mesa DRI Rage 128 Mobility 20041001
AGP 1x
OpenGL version string: 1.2 Mesa 6.2.1

uname: (note that "darwin" is my hostname, I'm
not running MacOS)
Linux darwin 2.6.10-gentoo-r4 #1 Fri Jan 28 20:43:46 GMT
2005 ppc 
745/755 PowerBook4,1 GNU/Linux
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