[PyMOL] "ray" doubts

[Ricardo A. <apa...@if...>]

Dear PyMol users,

as stated in the manual, command

 "ray" creates a ray traced image of the current frame. This
   can take some time (up to several minutes, depending on image
   complexity).

My question is:

- is it necessary? Does it make great difference in the final quality of
figures published (in the case of a paper)?

- does it renderize(?) all the active objects in the screen?

- after finished ray process, if the image is rotated, is it necessary
to renderize again (I think no, just to confirm)


Many thanks,


Ricardo Aparicio
PhD Student - USP 
Sao Paulo - Brazil