Bug#408679: libgl1-mesa-glx: glClipPlane() has no effect

[Ingo Bressler]

Package: libgl1-mesa-glx
Version: 6.5.1-0.5
Severity: normal


The usage of the function 'glClipPlane()' inside an OpenGL program is
supposed to clip an object at the defined clip plane which does not
happen.

I'm using a radeon9700 card. DRI is enabled.

Screenshot of how it is supposed to work (winXp + mingw):
http://ingo.wollsau.de/clippingTest/sphereClipped.png

Screenshot of how it actually works on my system:
http://ingo.wollsau.de/clippingTest/sphereNotClipped.png

The used test-program code:
http://ingo.wollsau.de/clippingTest/clippingTest.c

Info that OpenGL told me (see code):
Maximum count of additional clip-planes: 6
Depth bits: 24

glxinfo:
http://ingo.wollsau.de/clippingTest/glxinfo

xorg.log:
http://ingo.wollsau.de/clippingTest/xorg.log


May be related to:
http://bugs.freedesktop.org/show_bug.cgi?id=6512
and
http://webcvs.freedesktop.org/mesa/Mesa/src/mesa/tnl/t_vb_cliptmp.h?view=log


Some weeks ago I posted this issue here:
http://www.linuxquestions.org/questions/showthread.php?p=2534262

Is this already fixed in (upcoming) version 6.5.2 ?



-- System Information:
Debian Release: 4.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17.6
Locale: LANG=de_DE at euro, LC_CTYPE=de_DE at euro (charmap=ISO-8859-15)

Versions of packages libgl1-mesa-glx depends on:
ii  libc6                       2.3.6.ds1-10 GNU C Library: Shared libraries
ii  libdrm2                     2.0.2-0.1    Userspace interface to kernel DRM 
ii  libx11-6                    2:1.0.3-4    X11 client-side library
ii  libxext6                    1:1.0.1-2    X11 miscellaneous extension librar
ii  libxxf86vm1                 1:1.0.1-2    X11 XFree86 video mode extension l

libgl1-mesa-glx recommends no packages.

-- no debconf information