Re: GL lines in performer
Christina Fyock (cfyock++at++martinique)
Tue, 19 Sep 95 14:51:26 -0400
On Sep 19, 10:56am, ipandzic++at++cui.unige.ch wrote:
> Subject: GL lines in performer
> Hello,
>
> I am trying to draw some simple GL lines (bgnline - v3f - endline) in a
> Performer node's draw traversal function. These lines are sort of markers
> so I don't want them to be influenced by light, i.e. I want them to have
> an absolute color, defined by RGBcolor command. To do this I call
> pfDisable(PFEN_LIGHTING) before, and pfEnable(PFEN_LIGHTING) after
> drawing the lines. This works fine on a single processor machine like
> Indigo or Indy, but
> I get problems on the Onyx - the lines sometimes still don't
> have the color I want, but get influenced by the light. I don't
> seem to find on what it depends.
>
> Does someone know a better way to draw simple GL lines with absolute color?
Try using the call c3f() to set the RGB value of the
vector before you call bgnline/v3f/endline. I have
had success doing this in Performer in the past when
drawing GL lines.
-----------------------------------------------------------------------
Christina Fyock
GTE Government Systems
Needham, MA
Email: cfyock++at++martinique.ndhm.gtegsc.com
fyock.christina++at++mail.ndhm.gtegsc.com
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on Mon Aug 10 1998 - 17:51:53 PDT