[chimerax-users] crossfade issue

[Tom Goddard]

This is likely a bug in the crossfade command and I have made a bug report for it

	https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/6874

Apparently the crossfade command is using the graphics window size even when the movie record command specifies width/height options that have a different aspect ratio.

  Tom


> On May 12, 2022, at 1:22 PM, Elaine Meng via ChimeraX-users <chimerax-users at cgl.ucsf.edu> wrote:
> 
> Great!  It might also work with different sizes of graphics window vs. movie as long as the aspect ratio (ratio between height and width) is the same, but that is also just a guess.  :-)
> 
> Best,
> Elaine
> -----
> Elaine C. Meng, Ph.D.
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
> 
>> On May 12, 2022, at 1:02 PM, Omid Haji-Ghassemi <omid.hajighassemi at ucalgary.ca> wrote:
>> 
>> Hi Elaine,
>> 
>> That seem to do the trick. Thanks Elaine! I guess I should always make the window size match the movie beforehand each time. 
>> 
>> All the best,
>> Omid
>> 
>> -----Original Message-----
>> From: Elaine Meng <meng at cgl.ucsf.edu> 
>> Sent: May 12, 2022 1:44 PM
>> To: Omid Haji-Ghassemi <omid.hajighassemi at ucalgary.ca>
>> Cc: ChimeraX Users Help <chimerax-users at cgl.ucsf.edu>
>> Subject: Re: [chimerax-users] crossfade issue
>> 
>> [△EXTERNAL]
>> 
>> 
>> 
>> Hi Omid,
>> I've never seen this problem, but I always make my window the same size as I want for the movie beforehand.  In case it is some kind of confusion between dimensions or aspect ratio of the window vs. the movie images (only a guess), I'd recommend doing this instead:
>> 
>> windowsize 640 480
>> movie record supersample 3
>> wait 60
>> crossfade; cartoon hide #1/D-F; wait 60
>> movie encode framerate 60 output test.mov
>> 
>> What you sent wasn't quite enough to reproduce your situation, since we'd also need the structure, display styles, current window size, etc. (e.g. you'd have to send a session file if you're willing to make it publicly available).  If so, instead of sending a message here, use menu: Help... Report a Bug and attach the session file as well as the commands that you sent below, and a description of the problem.  That also lets us know the ChimeraX version and type of computer you are using.
>> 
>> I hope this helps,
>> Elaine
>> -----
>> Elaine C. Meng, Ph.D.
>> UCSF Chimera(X) team
>> Department of Pharmaceutical Chemistry
>> University of California, San Francisco
>> 
>>> On May 12, 2022, at 12:16 PM, Omid Haji-Ghassemi via ChimeraX-users <chimerax-users at cgl.ucsf.edu> wrote:
>>> 
>>> Dear ChimeraX community,
>>> I am having some issues with the crossfade command while making a movie. For some reason the command stretches out the image while running the transition.
>>> I am just doing a simple transition for a movie as part of a more complicated movie.
>>> 
>>> To illustrate the problem I made a simple script that reproduces the issue.
>>> 
>>> movie record supersample 3 size 640,480 wait 60 crossfade; cartoon 
>>> hide #1/D-F; wait 60 movie encode framerate 60 output test.mov
>>> 
>>> Be great if someone can let me know what I am doing wrong.
>>> Best,
>>> Omid
>> 
> 
> 
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