Re: LOD transition blending

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Rémi Arnaud (remi++at++remi.engr.sgi.com)
Mon, 25 Aug 1997 10:14:59 -0700 (PDT)

Wolfgang Trog wrote:
>
> Hi Performers !
>
> I'm trying to use LOD transition blending in a driving simulation. Due
> to the manual, I can do this only on RealityEngine graphics systems. Is
> there any possibility to do this on other machines, like an O2, too.
>
> Thanks for your help !
>

  The LOD blending is done using multisampling alpha, exclusively available
  on graphics that have multisampling (RE2, IR).
  It is possible to use the regular blending, but the polygons have to be
  sorted in back to front order in that case. (see the trenaparent bin
  in the pfChannel man page)
  You'll have to change the transparency of the object by hand acting on the
  geoState attached to the geoset you wish to blend, and have the transparency
  bin enabled

  regards

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