Hi Neil, The "transition" command comes from a Chimera plug-in (not distributed by default). The plug-in is on the "Experimental Features" web page and is called "Animation Commands". Unfortunately we do not have any built-in capability to do color fades. Tom Neil Ranson wrote:

Dear All, I am revisiting a movie I made in chimera some time ago with a painfully long script. In this script, I used a command syntax like this:

transition transparency #0 0 0.1 1 copy file 'filename'

To change the global transparency of model #0 (with lots of different elements all coloured and represented differently) This command seems to have disappeared. Is there an equivalent way now? The only way I can find is to use transparency in the colordef command, but that will be extremely cumbersome. What is the preferred way to fade a model in and out now?

Thanks in advance, Neil Ranson

Neil Ranson PhD Level 2 Biochemistry Tutor University Research Fellow Astbury Centre for Structural Molecular Biology IMCB University of Leeds, Leeds, LS2 9JT, UK.

EM Image Processing Suite - Miall 6.02 Tel: 44 (0) 113 343 7065 email: n.a.ranson@leeds.ac.uk <mailto:n.a.ranson@leeds.ac.uk>

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