It seems the fly command has never worked correctly in the two years since I added it to ChimeraX. The fly command interpolated rotation positions as quaternions and then didn't normalized the interpolated quaternion, leading to the wrong motion and wrong lighting. In addition to wrong lighting it was producing non-sensical curved path motions.

On Oct 1, 2023, at 12:24 PM, Haselbach,David via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi,

I am trying to make a fly movie in which I move from one rotation state of the molecule to the next. Unfortunately, the lighting during the flight is not nice. The light goes very bright while moving and in the end jumps back to normal. However, if I do the turn life with mouse the light is fine. I am using soft lighting.
Find attached an example movie. What could I do? Can anyone help?

Best,

David
<movie.mp4>_______________________________________________
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