3D stereo not correct.

[kenneth.satyshur@…]

I previously reported ghosting of one eye or another when going into camera stereo and using Nvidia P5000 Quadro card. Stereo is broken in ChimeraX. The separation distance is too large and cannot be put into stereo even though Chimera tries it. I believer this is an old bug.


Linux owsley 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 16 12:17:35 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

unfortunately, I cannot teach isolde in 3D.


Kenneth A. Satyshur, M.S., Ph.D.

Senior Scientist,

College of Ag and Life Sciences: Department of Bacteriology;

School of Medicine and Public Health:

Departments of Biomolecular Chemistry,

Neuroscience, Oncology, and Carbone Cancer Center

(Small Molecule Screening Facility)

University of Wisconsin-Madison

Madison, Wisconsin, 53706

608-215-5207

3d-stereo-chimerax-isolde.png​

[kenneth.satyshur@…]

Added by email2trac

[Tom Goddard]

The eye separation is specified by the camera command options eyeSeparation and pixelEyeSeparation

​https://www.cgl.ucsf.edu/chimerax/docs/user/commands/camera.html

ChimeraX does not know how many pixels per inch your display is so you have to tell it how many pixels on the screen separate your left and right eye using the pixelEyeSeparation option. Usually the default value of 200 is ok for typical desktop displays but is completely wrong for a projector. Projectors don't report the pixels per inch since they have no way of knowing how far away the wall they are projecting onto is located.

[kenneth.satyshur@…]

Ok thanks.

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________________________________
From: ChimeraX <ChimeraX-bugs-admin@cgl.ucsf.edu>
Sent: Tuesday, March 1, 2022 9:51:19 PM
Cc: goddard@cgl.ucsf.edu <goddard@cgl.ucsf.edu>; Kenneth Satyshur <kenneth.satyshur@wisc.edu>
Subject: Re: [ChimeraX] #6282: 3D stereo not correct.

#6282: 3D stereo not correct.
-----------------------------------------+-------------------------
          Reporter:  kenneth.satyshur@…  |      Owner:  Tom Goddard
              Type:  defect              |     Status:  closed
          Priority:  normal              |  Milestone:
         Component:  Graphics            |    Version:
        Resolution:  not a bug           |   Keywords:
        Blocked By:                      |   Blocking:
Notify when closed:                      |   Platform:  all
           Project:  ChimeraX            |
-----------------------------------------+-------------------------
Changes (by Tom Goddard):

 * status:  assigned => closed
 * resolution:   => not a bug


Comment:

 The eye separation is specified by the camera command options
 eyeSeparation and pixelEyeSeparation

 https://www.cgl.ucsf.edu/chimerax/docs/user/commands/camera.html

 ChimeraX does not know how many pixels per inch your display is so you
 have to tell it how many pixels on the screen separate your left and right
 eye using the pixelEyeSeparation option.  Usually the default value of 200
 is ok for typical desktop displays but is completely wrong for a
 projector.  Projectors don't report the pixels per inch since they have no
 way of knowing how far away the wall they are projecting onto is located.

--
Ticket URL: <https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/6282#comment:2>
ChimeraX <https://www.rbvi.ucsf.edu/chimerax/>
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