[chimerax-users] Depth cueing and silhouette

Steve Chou stevezchou at gmail.com
Thu Mar 5 12:06:51 PST 2020


Hi Tom,
Can we GET and SET the positions (float number) of the two vertical bars
(near & far) on COMMAND LINE?
Thank you for this help and others!
Steve

On Thu, Mar 5, 2020 at 3:01 PM Tom Goddard <goddard at sonic.net> wrote:

> Hi Aritz,
>
>   The current ChimeraX silhouette drawing code does not know the depth of
> the silhouette and therefore cannot dim it with depth cueing.  It is
> possible to improve the code so it know the depth of the silhouettes but I
> have not had time to work on that because of a hundred competing
> improvements and new features.  It is a bit tricky make silhouettes have
> depth because it requires new low level graphics OpenGL shader code to be
> written.  I hope to do it some day.
>
>         Tom
>
>
> > On Mar 4, 2020, at 8:16 AM, Elaine Meng wrote:
> >
> > Hi Aritz,
> > You are not doing anything wrong — currently the silhouette edges are
> “immune” from the depth-cuing fog, and there is no option to also fade
> them.  It has been requested by a few users, but there is no option yet,
> sorry.
> > Elaine
> > -----
> > Elaine C. Meng, Ph.D.
> > UCSF Chimera(X) team
> > Department of Pharmaceutical Chemistry
> > University of California, San Francisco
> >
> >
> >> On Mar 4, 2020, at 6:00 AM, Aritz Roa Eguiara wrote:
> >>
> >> Dear ChimeraX team,
> >>
> >> I write you to ask about the depth cueing option. I have a structure
> with the silhouette true option and now I want to change the depth cueing
> to obtain a slice of the structure but with some of the fog coming from the
> background. The cartoon color disappear gradually as expected, however the
> black line of the silhouette is 100% or nothing, is there anything I am
> doing wrong or is it what I should expect? Is there anyway to obtain also
> that smooth disappearing of the silhouette?
> >>
> >> Thank you for your help.
> >>
> >> All the best,
> >> Aritz
> >
> >
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>
>
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-- 
Steve Chou
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