id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
389	Session save slow for molecular surfaces	meng@…	Tom Goddard	"Takes 10 seconds to save a session with 4hhb with molecular surfaces (0.2 seconds to restore session).  Why so slow?


Begin forwarded message:

From: Elaine Meng 
Subject: ChimeraX sessions are YUGE
Date: July 27, 2016 at 4:39:25 PM PDT
To: chimera-programmers@cgl.ucsf.edu

Maybe this is a totally known thing, in which case just ignore me.
Elaine

I saved sessions in Chimera and ChimeraX with the basically the same contents: a fairly small 4-chain protein, hemoglobin (4HHB) displayed as spheres with (hidden) molecular surfaces for both main and ligand.  The only difference is that the chains are separately surfaced and surfaces are in 8 models in ChimeraX instead of 2.

What I was actually trying to do was to come up with similar-looking lighting settings in ChiX as used for Chi1 in the 3D printing scripts. 

Anyway, it took a really long time to save the ChimeraX session, and you can see a significant size difference by listing my home directory on plato:

crick.31% ls -l ~/*3dp*
 748 -rw------- 1 meng ferrin   759046 Jul 27 16:22 /home/socr/a/meng/3dp-3.py
10620 -rw-r--r-- 1 meng ferrin 10845566 Jul 27 16:23 /home/socr/a/meng/cx-3dp-3.cxs

"	enhancement	new	major		Sessions								all	ChimeraX