Hi Eric, thank you very much, this fixed my problem! Actually the crucial point I hadn't realised was that capturing of new frames between two commands can be prevented by putting both commands in the same line. Putting several commands in a "perframe environment" for just one frame was an unnecessarily brute-force way of achieving this. Also, the problem of continued motion after movie encoding has just disappeared, for whatever reason - maybe I simply overlooked trailing code parts. Thanks again, Florian
On 08.12.2015, at 19:53, Eric Pettersen <pett@cgl.ucsf.edu> wrote:
Hi Florian, I think the thing that might be confusing you is that an implicit “wait 1” is done at the end of line of a script if the commands in that line change the display (unless the last command in the line is some form of “wait” or unless the script is run via the “read” command instead of the “open” command). Therefore the waits in this series of commands is superfluous:
move 0.9432,3.3367,-3.9733 model #1 wait move -3.1264,-2.5812,5.6072 model #1 wait move -2.9523,2.8959,-3.9907 model #1 wait
The other thing to know is that the various motion commands like “move” or “turn” have number-of-frames arguments. Therefore these commands:
perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe wait
can just be:
move -14.0968,0.5720,-12.9560 5 model #1; turn y 1 5 model #0; wait
Looking at your script snippet I can’t explain why movie encoding would start before the motions are finished. When I run your script with two sample models I opened, they stopped moving before the movie started encoding.
—Eric
Eric Pettersen UCSF Computer Graphics Lab
On Dec 8, 2015, at 3:59 AM, Florian Drechsler <florian.drechsler@googlemail.com> wrote:
Dear Chimera Support Team,
I have a question regarding movie making in Chimera: I would like to be able to record a movie, based on a chimera script, and have exact frame-wise control over what is recorded.
Chimera seems to make a funny distinction between "internal trajectory frames" and "movie frames" which I don't get. I would like a one-to-one correspondence between these, no interpolation or anything like that.
More precisely, I would like to be able to do the following, in strict sequential order:
- Load some models, - rotate one of the models, - move one of the models, - capture a movie frame of the resulting configuration, and again - rotate one of the models, - move one of the models, - capture a movie frame of the resulting configuration, etc.
I have tried using "perframe" commands, where each perframe operation comprises a "move" and a "turn" command, and has the option "frames 1". Still, I don't get exactly what I want: the resulting movie doesn't consist of the number of frames I'd expect - movie encoding seems to start before all commands have actually been executed. I can see a message saying that the movie has been finished, while things are still moving.
I've provided a code snippet below.
Moreover, rather than using "perframe", surely there must be a more elegant and natural way of enforcing sequential execution of commands, as one would expect from any normal programming language.
Thank you very much in advance for your help, Best regards, Florian Drechsler
--------------------------
Florian Drechsler Universität Ulm Institut für Biophysik Albert-Einstein-Allee 11 D-89081 Ulm ------------------------
==============================================================
# This is a command file to be opened from UCSF Chimera. # It loads several molecules from PDB files, and arranges them in docked conformations. # These conformations are the result of a Bayesian inference carried out by FastNPS. # Upon execution of this file, Chimera will generate a movie clip showing a set of docked # conformations, in the manner of a flip-book.
# This file can be edited if any particular colour or lighting options etc. are desired.
# --- load PDBs --- open ./2waq.pdb open ./1D3U_movedtoCentrePol_noTFB.pdb
################################################################################## ##### E d i t a b l e s e c t i o n for custom viewing preferences ##### ##### (colour, lighting, background, etc.) ##### ##################################################################################
set bg_color white
color dark slate gray #0:.A-Q
2dlabel create title text "Samples of configurations of docking scenario, 2WAQ vs. 1D3U" xpos 0.04 ypos 0.92 color black
2dlabel create sub text "Motion does not represent dynamics" size 12 xpos 0.04 ypos 0.88 color black
################################################################################## ##### E n d o f e d i t a b l e s e c t i o n ##### ################################################################################## move x 14.5577 model #1 move y 10.7525 model #1 move z 13.1320 model #1 windowsize 800 600 scale 0.8 movie record supersample 3 move 0.9432,3.3367,-3.9733 model #1 wait move -3.1264,-2.5812,5.6072 model #1 wait move -2.9523,2.8959,-3.9907 model #1 wait move -14.0968,0.5720,-12.9560 model #1
perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframeperframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move -14.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe wait move 8.4475,0.1,0.1 model #1
perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe perframe "move 2.0968,0.5720,-12.9560 model #1; turn y 1 model #0;" frames 1 ~perframe
wait move 8.4475,4.5142,16.4771 model #1 turn z 2 wait move -12.9187,-0.7126,-7.8443 model #1 turn z 2 wait move 9.5982,-3.2342,8.4843 model #1 turn z 2 wait move 3.2604,3.3466,-4.2558 model #1 turn z 2 wait move 0.5383,-1.8787,5.0346 model #1 turn z 2 wait move -0.6887,1.1472,-2.6070 model #1 turn z 2 wait move -0.0759,-1.7268,1.1365 model #1 turn z 2 wait move -3.1444,0.7922,-1.0015 model #1 turn z 2 wait move 5.2841,0.0361,0.6118 model #1 turn z 2 wait movie encode docking.mp4 bitrate 10000 framerate 60
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