<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Hi,</div><div class=""><br class=""></div><div class="">As a follow up to this thread (<a href="http://plato.cgl.ucsf.edu/pipermail/chimera-users/2009-March/003712.html" class="">http://plato.cgl.ucsf.edu/pipermail/chimera-users/2009-March/003712.html</a>) from 2009, I’d like to color a model by a custom attribute that changes from frame to frame. Using the workaround mentioned in that thread, we are able to use Per-Frame commands to load a new attribute file each frame, and then color the structure by the attribute, but this awfully slow (probably over 1 second per frame). </div><div class=""><br class=""></div><div class="">Is there a way to cache the attribute data? Or a way to improve the performance of defining the attributes and re-coloring the structure? I know that I could use a Python script to load each coordinate frame with its associated attribute data, save images, and then stitch them together for a movie, but the current goal is for data exploration.</div></body></html>