[chimerax-users] 3D stereo lighting is not the same as mono

[Kenneth Satyshur]

Ok.stay safe there.

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________________________________
From: Tom Goddard <goddard at sonic.net>
Sent: Tuesday, May 26, 2020 12:30:14 PM
To: Kenneth Satyshur <kenneth.satyshur at wisc.edu>
Cc: ChimeraX Users Help <chimerax-users at cgl.ucsf.edu>
Subject: Re: [chimerax-users] 3D stereo lighting is not the same as mono

Try "camera sbs" and see if shadows look right.  If they do look ok, but stereo does not then it will require some debugging with a stereo system that reproduces the problem and I am not able to test that until quarantine is over.

Tom


On May 26, 2020, at 10:01 AM, Kenneth Satyshur <kenneth.satyshur at wisc.edu<mailto:kenneth.satyshur at wisc.edu>> wrote:

Thanks. I will check out the versions as they come out. Hopefully this can be fixed. I can try a VR and see what is up with the display if anything.
kas


Kenneth A. Satyshur, M.S., Ph.D.
Senior Scientist,
Department of Bacteriology: College of Ag and Life Sciences;
Departments of Bio Molecular Chemistry,
Neuroscience, Oncology, and Carbone Cancer Center:
School of Medicine and Public Health;
and the School of Pharmacy
University of Wisconsin-Madison
Madison, Wisconsin, 53706
608-215-5207
________________________________
From: Tom Goddard <goddard at sonic.net<mailto:goddard at sonic.net>>
Sent: Tuesday, May 26, 2020 11:48 AM
To: Kenneth Satyshur <kenneth.satyshur at wisc.edu<mailto:kenneth.satyshur at wisc.edu>>
Cc: chimerax-users at cgl.ucsf.edu<mailto:chimerax-users at cgl.ucsf.edu> <chimerax-users at cgl.ucsf.edu<mailto:chimerax-users at cgl.ucsf.edu>>
Subject: Re: [chimerax-users] 3D stereo lighting is not the same as mono

I made a bug report for this

https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/3315

I am not able to test stereo, don't have a computer that can do it.  For me other two eye modes like VR and SBS (side-by-side) have correct shadows.  The problem may be a graphics driver bug effecting shadow calculation.  Or it might be a bug in ChimeraX in how OpenGL quad-buffering are used.

Tom


On May 23, 2020, at 4:39 PM, Kenneth Satyshur <kenneth.satyshur at wisc.edu<mailto:kenneth.satyshur at wisc.edu>> wrote:

I am using version 1.0 in Centos7 with Nvidia 3D glasses and K4000 video card. I do all my work  in 3D stereo. Especially density fitting. I noticed that the lighting is different in mono vs stereo mode. When i go to stereo mode with

camera stereo

the image is in stereo but the "full" lighting is on and the image is very dark with shadows. If I switch to 'simple' it is bright and has weak shadowing. Switching to 'soft' the image is flat black and can only be seen with white background but contains no atoms. I think this is a bug.
But a Great improvement in rendering of images.
thanks
kas
p.s. old chimera does stereo very well on my system
Linux kenworkathome 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux


Kenneth A. Satyshur, M.S., Ph.D.
Senior Scientist,
Department of Bacteriology: College of Ag and Life Sciences;
Departments of Bio Molecular Chemistry,
Neuroscience, Oncology, and Carbone Cancer Center:
School of Medicine and Public Health;
and the School of Pharmacy
University of Wisconsin-Madison
Madison, Wisconsin, 53706
608-215-5207
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