I tried the "transition" command, it works but it seems very slow. Each frame transition takes a very long time to occur. I guess after recording it would be OK. Thanks Hernando Thomas Goddard wrote:

Hi Hernando,

There are two ways to go about this. One is to use the color command

http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/color.html

say 20 times in a script to gradually increase the transparency to 1. You can specify the color as 4 values r,g,b,a in Chimera 1.4 daily builds (but not in 1.3). A second approach is to download a plugin called "Animation Commands" from the Chimera Experimental Features web page (near the bottom):

http://www.cgl.ucsf.edu/chimera/experimental/experimental.html

Installing this gives you the "transition" command which can fade transparency.

http://www.cgl.ucsf.edu/chimera/experimental/transition/transition.html

Tom

hsosa@aecom.yu.edu wrote:

...

Hi,

Is there a command to control the transparency of a ribbon representation or the whole model ?. I'm trying to fade in an out a molecule (in ribbon + wire atom representation) in movie.

Thanks

Hernando

-- ----------------------------------- Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine 1300 Morris Park Av. Bronx NY 10461 phone (718) 430-3456 FAX (718) 430-8819 email hsosa@aecom.yu.edu -----------------------------------