[PyMOL] lines same color as background

2002-05-30 Thread Ezequiel Panepucci 
Hello There,

I have this geforce4 ti 4400 with the latest nvidia
drivers and xfree86 4.2

Problem: The lines are always colored the same color as the
background. If I change the background to white the lines become
white.

all other representaions (sticks, spheres surface) work
fine. So as a workaround I am using stick_radius really small
but this is not the same, lines are way better for interactive work.

Weird thing is, the same happens under Win2k (dual boot machine
here so exactly the same hardware).

More weirdness: also happens with Ono under both OSes.

My feeling is that this has to do with the z-buffer/fog
thingy. I did run a program drawing (GL_LINES) with GL_DEPTH_TEST
enabled and that worked fine.

any clues?
Zac

--
 Ezequiel Panepucci - Laboratory of Prof. Axel Brunger
 HHMI - Stanford University
 Phone: 650-926-5127
 Cell:  650-714-9414

RE: [PyMOL] lines same color as background

2002-05-30 Thread Ezequiel Panepucci 
Results:

on geforce4 ti 4400 from PNY
WORKS:
line_smooth=0
depth_cue=1   

line_smooth=1
depth_cue=0

line_smooth=0
depth_cue=0

WORKS NOT
line_smooth=1
depth_cue=1
 


On Thu, 30 May 2002, DeLano, Warren wrote:

 Zac,
 
Thanks for the report.
 
The fact that it happens with Ono too indicates that it is a
 driver/openGL-level bug.  You can try some things like disabling
 depth cuing (set depth_cue=0) or smoothing (set line_smooth=0), but
 most likely you will need to wait for a driver upgrade.  Please do
 report the problem to nVidia tech support and clearly state that the
 problem occurs across multiple OpenGL programs.
 
   Also, you might try using an older version of the driver.  AFAICR, nVidia 
 uses a unified driver architecture which is both backwards and forwards 
 compatible.  If you do find a robust solution, please pass it along!
 
 Cheers,
 Warren
 
 --
 mailto:war...@sunesis.com
 Warren L. DeLano, Ph.D.
 
 
 
  -Original Message-
  From: Ezequiel Panepucci [mailto:z...@slac.stanford.edu]
  Sent: Thursday, May 30, 2002 1:39 PM
  To: PyMOL-users@lists.sourceforge.net
  Subject: [PyMOL] lines same color as background
  
  
  Hello There,
  
  I have this geforce4 ti 4400 with the latest nvidia
  drivers and xfree86 4.2
  
  Problem: The lines are always colored the same color as the
  background. If I change the background to white the lines become
  white.
  
  all other representaions (sticks, spheres surface) work
  fine. So as a workaround I am using stick_radius really small
  but this is not the same, lines are way better for interactive work.
  
  Weird thing is, the same happens under Win2k (dual boot machine
  here so exactly the same hardware).
  
  More weirdness: also happens with Ono under both OSes.
  
  My feeling is that this has to do with the z-buffer/fog
  thingy. I did run a program drawing (GL_LINES) with GL_DEPTH_TEST
  enabled and that worked fine.
  
  any clues?
  Zac
  
  --
   Ezequiel Panepucci - Laboratory of Prof. Axel Brunger
   HHMI - Stanford University
   Phone: 650-926-5127
   Cell:  650-714-9414
  
  
  ___
  
  Don't miss the 2002 Sprint PCS Application Developer's Conference
  August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm
  
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  PyMOL-users mailing list
  PyMOL-users@lists.sourceforge.net
  https://lists.sourceforge.net/lists/listinfo/pymol-users
  
 

--
 Ezequiel Panepucci - Laboratory of Prof. Axel Brunger
 HHMI - Stanford University
 Phone: 650-926-5127
 Cell:  650-714-9414