id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
1454	showPivot performance problems	olibclarke@…	Tom Goddard	"{{{
The following bug report has been submitted:
Platform:        Darwin-18.2.0-x86_64-i386-64bit
ChimeraX Version: 0.8 (2018-11-16)
Description
Hi,

Thanks for adding trackpad support - it's buttery-smooth and works perfectly now :)

While using the cofr command, I noticed something that may or may not be a bug. Specifically, the `cofr showPivot true` command seems to cause dramatic slowdowns in rendering under certain circumstances.

1. If `cofr centerofview` is set, `showPivot true` causes very slow and jerky translation (rotation is fine).

2. if `cofr frontcenter` is set, `showPivot true` causes very slow and jerky rotation, but translation is fine.

Test on a large pdb (e.g. 5TAQ), with a molecular surface and soft lighting.

Cheers
Oli

Log:
UCSF ChimeraX version: 0.8 (2018-11-16)  
How to cite UCSF ChimeraX  

> open
/Users/oliverclarke/Dropbox/Documents/Work/Projects/RyR/ryr_paper_3/structures_and_maps/cam_maps_and_models/tet_moved.pdb

Chain information for tet_moved.pdb #1  
---  
Chain | Description  
A B G I | No description available  
C D E K | No description available  
F H J O | No description available  
  

> camera ortho

> lighting soft

> open
/Users/oliverclarke/Dropbox/Downloads/cryosparc_exp000880_class_001_iter_062.mrc

File not found:
/Users/oliverclarke/Dropbox/Downloads/cryosparc_exp000880_class_001_iter_062.mrc  

File not found:
/Users/oliverclarke/Dropbox/Downloads/cryosparc_exp000880_class_001_iter_062.mrc  

> surface #1

> set bgColor #3f3f3f

> set bgColor #424242

> set bgColor #5c5c5c

> set bgColor #cccccc

> set bgColor #ffffff

> help help:user

Developer warnings in user commands index:

  * didn't expect href to be to tools/sequenceviewer.html on line 245

  

> cofr

Center of rotation: 251.15 251.35 248.46 front center  

> cofr

Center of rotation: 251.15 251.35 248.46 front center  

> cofr centerOfView

> cofr

Center of rotation: 275.99 269.71 251.39 center of view  

Missing ""showPivot"" keyword's argument  

Invalid ""showPivot"" argument: Expected some numbers or true or false  

> cofr showPivot true

> cofr frontCenter

> cofr centerOfView

> cofr frontCenter

> cofr showPivot true




OpenGL version: 4.1 ATI-2.2.8
OpenGL renderer: AMD Radeon Pro 580 OpenGL Engine
OpenGL vendor: ATI Technologies Inc.

}}}
"	defect	closed	normal		Graphics		fixed						all	ChimeraX