single-color space-filling preset lighting

[olibclarke@…]

The following bug report has been submitted:
Platform:        Darwin-18.2.0-x86_64-i386-64bit
ChimeraX Version: 0.9 (2019-03-13)
Description
Hi,

The default lighting mode for the "single color space filling"
 preset gives a mottled appearance which doesn't seem to correspond to any of the lighting modes exposed in the GUI (e.g. here see a comparison with soft lighting).

Cheers
Oli

Log:
> camera ortho

> lighting soft

> set bgColor white

> lighting depthCueColor white

> cofr centerOfView

UCSF ChimeraX version: 0.9 (2019-03-13)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open 1bl8 format mmCIF fromDatabase pdb

1bl8 title:  
Potassium channel (KCSA) from streptomyces lividans [more info...]  
  
Chain information for 1bl8 #1  
---  
Chain | Description  
A B C D | protein (potassium channel protein)  
  
  

> preset cartoon

> preset '"original look"'

> preset sticks

> preset '"space-filling (chain colors)"'

> preset '"space-filling (single color)"'

> lighting soft

> lighting full

> lighting soft

> preset '"space-filling (single color)"'

> lighting soft

> lighting full

> lighting soft

> lighting simple

> set bgColor black

> lighting simple

> lighting shadows true

> lighting soft

> lighting gentle

> lighting soft

> preset '"space-filling (chain colors)"'

> preset '"space-filling (single color)"'

> lighting soft




OpenGL version: 4.1 ATI-2.4.10
OpenGL renderer: AMD Radeon Pro 580 OpenGL Engine
OpenGL vendor: ATI Technologies Inc.
File attachment: Screen Shot 2019-03-19 at 2.04.49 PM.png

Screen Shot 2019-03-19 at 2.04.49 PM.png​

[olibclarke@…]

Added by email2trac

[pett]

Hi Oliver,

The "Initial Styles" presets correspond exactly to what ChimeraX shows for various structure types when they are opened. The "Space-Filling (single color)" preset is only used when huge structures (>256 chains) are opened and therefore uses the less computationally demanding "soft multiShadow 16" as its lighting. Since that preset may now be applied in situations with far fewer atoms, I inserted a cutoff in the code such that for non-huge systems it will instead just use "soft".
Thanks for pointing this out.

--Eric