Re: PFFOG_PIX_SPLINE !!!!

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Sharon Clay (src++at++rose.asd.sgi.com)
Tue, 3 Sep 1996 12:21:31 -0700

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+>---- On Sep 3, 6:54am, ram munjulur wrote:
> Subject: PFFOG_PIX_SPLINE !!!!
->From guest++at++holodeck.csd.sgi.com Tue Sep 3 04:39:04 1996
->Sender: "ram munjulur" <ram++at++ivex3d.com>
->Date: Tue, 03 Sep 1996 06:54:17 -0400
->From: "ram munjulur" <munjulur++at++ivex3d.com>
->Organization: IVEX
->X-Mailer: Mozilla 2.0S (X11; I; IRIX 6.2 IP22)
->To: info-performer++at++sgi.com
->Subject: PFFOG_PIX_SPLINE !!!!
->
->Hi Performers !!!
->
->I have two versions of perfly on an RE (IRIX version 5.3, Perf 2.0).
->1) OpenGL version and 2) IRISGL version.
->
->The man page on pfFog says that PFFOG_PIX_SPLINE is available on
->the RE. But when I run these two versions on the RE,
->only the IRISGL version sets the haveSplineFog flag in "gui.c".
->ie. the GUI has a SPLINE fog option.
->
->And also in my sample executables(OGL versons) with fog (SPLINE type)
->with 10
->points seems to get the default EXP^2 type, ignoring the points.
->

Spline was not in OpenGL until a recent OpenGL extension for InfiniteReality.
So, there is no OpenGL spline fog on RE2. FYI, we do have a pfQueryFeature query
for spline fog, PFQFTR_FOG_SPLINE, so that you can do like perfly and make run-time
decisions.
I apologize for the incomplete man page :-(

src.

-- 
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Sharon Rose Clay (Fischler) - Silicon Graphics, Advanced Systems Dev.
src++at++sgi.com  (415) 933 - 1002  FAX: (415) 965 - 2658  MS 8U-590
http://www.sgi.com/Technology/Performer/
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