Re: [PyMOL] Depth buffer and close surfaces

[<Mat...@im...>]

pym...@li... wrote on 08/09/2006 03:36:25 PM:

>
> I have a couple of ribbons that come very close to exactly overlaying
> in places. This causes rendering artifacts (noise) that I suspect are
> due to the renderers (both hardware and software) having trouble
> telling which surface is on top. Things improve some when I make the
> clipping plane very narrow, but messy surface intersections persist.
>
> I could touch up the image with GIMP, but does anyone have a clever
> solution to this problem?
>
>
> Richard Gillilan
> MacCHESS
> Cornell
>
>

Hi Richard -

How about making one ribbon thicker than the other, so there's no ambiguity
about which is on top?  You can set cartoon_rect_length and
cartoon_rect_width for individual objects...

In my experience, though, ambiguity about which surface is on top just
produces mottled surfaces - one triangle of one color next to a triangle of
the other color.

Could you post a link to a picture of the artifacts?

- Matt

--
Matthew Franklin                     phone:(917)606-4116
Senior Scientist, ImClone Systems      fax:(212)645-2054
180 Varick Street, 6th floor
New York, NY 10014


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