Re: Doesn't pfLayer work on Reality?

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Rob Jenkins (robj++at++quid)
Thu, 5 Mar 1998 05:44:45 -0800

On Mar 5, 5:00pm, Yutaka Kanou wrote:
> Subject: Doesn't pfLayer work on Reality?
> Hello.
>
> I am using pfLayer nodes for avoiding visual inteference between two
> polygons on the same mathematical plane.
>
> It works well on InfiniteReality and O2. But It doesn't work on
> Onyx2/Reality. I recognize a well-known flaw image caused by Z-buffer
> precision error.
>
> Performer version is 2.1.
>
> Is there any workaround?
>

I've seen a problem running perfly_igl on Reality before, for some reason ( not
yet fixed I don't think ) it didn't get a zbuffer visual. perfly_ogl worked
fine though so what GL are you linked against ? If you have PFNFYLEVEL set to 6
say then you should get some info about the window/framebuffer config thast
performer thinks it opened for you, could you post that ? Also, once your app
is up and running use xwininfo with the -tree then -id options to work out
which visual you are using ( match xwininfo -id output visual number against
the list generated by findvis ).

Cheers
Rob

-- 
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Silicon Graphics, Mtn View, California, USA
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