Re: Problems with MXI on Octane.
Alejandro Saez (cano++at++krusty.engr.sgi.com)
Tue, 1 Jul 1997 11:27:41 -0400
On Jul 1, 10:28am, Kenneth Sewell wrote:
> Subject: Problems with MXI on Octane.
> I have been trying to add an atmospheric haze(aka fog) to a flight sim I
> am working on. I tried every algorithm (lin, exp, exp2...) as well as
> varying my clipping planes. The best it would do is apply what appeared
> to be a constant haze over the entire screen so that hill in the
> background had the same amount of fog as the foreground did. I assumed
> that I was missing something, however today I ran the program on the
> second monitor ( I usually use pipe 0 because is it the fastest) and to
> my suprise it applied the fog perfectly. It looks great now but, the
> fog only works when I run the program on the second head. I did try
> perfly running on both monitors and the fog seems to work on both, so I
> guess my question is what could I be doing or not be doing that would
> cause this behavior? The primary graphics board is an MXI (2 GEs, 2
> REs, 4 TRAMs) the second board is the SI (1 GE, 1 RE, 0 TRAMs). For
> obvious reasons I need to run the program on the MXI however I really
> need the fog because the area of my program is huge and without the haze
> you can see the far clipping plane which doesn't look too good. The
> computer is an Single processor Octane running 6.4 with performer 2.1.
> Any help is appreciated. Thanks.
>
> Ken
> Sewell++at++siscom.net
>
>
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>-- End of excerpt from Kenneth Sewell
Have you checked the visuals available on each pipe, and the visual your
application is getting each time. It seems to me like you are not getting
enough bits (alpha or accum) to crete the fog effect.
--
------------------------------------------------------------------------
Alejandro Saez
Software Engineer
Silicon Chile S.A.
Avda. Santa Maria 2560
E-mail: asaez++at++silicon.cl Providencia
Phone: +56 (2) 203 3371 Santiago
Fax: +56 (2) 203 3370 Chile
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on Mon Aug 10 1998 - 17:57:39 PDT