[Chimera-users] animating "HIDE DUST"
goddard at cgl.ucsf.edu
Thu Jun 10 15:56:02 PDT 2010
I assume you mean you want the "dust" to gradually fade out instead
of disappear all of a sudden. I see 3 possible approaches.
Most practical: open the two copies of the density map and make two
identical surfaces, hide dust on one of them, then fade the other one by
making it gradually more transparent (surftransparency command). Not
sure if this will look good or if the non-dust where the transparent and
non-transparent surface coincide will look weird.
General solution requiring new code. Would be neat if the Chimera
movie command could do cross-fades between two successive frames.
Basically you would show the surface with dust, then use "movie fade
frames 25", then the next command would hide the dust. The movie
command would simply take the image from before the fade command and the
frame drawn immediately after and blend them linearly for a specified
number images. Would be not too hard to implement and would enable
doing all kinds of cross-fades.
Specific solution requiring new code. The current hide dust turns of
display of the surface triangles making up the dust. A modified version
of that could instead change the color transparency of the dust. There
is no command for hide dust (just a dialog) and this new command would
probably be an option to the "sop" (surface operation) command.
I'm interested in implementing both of the above coding solutions but
have many other things to work on. I'll add those ideas to the Chimera
> I was trying to generate an animation transition using the HIDE DUST feature. Any suggestions on how to do it (e.g., chimera command, python, etc)?
> thanks, Matt
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