Re: Blending between levels of detail for texture

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Ran Yakir (rany++at++rtset.co.il)
Wed, 12 Feb 1997 19:00:43 +0000

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In reply to: WILLIAM_MARINELLI++at++ntsc.navy.mil: "Blending between levels of detail for texture"

On Feb 12, 9:40am, WILLIAM_MARINELLI++at++ntsc.navy.mil wrote:
> Subject: Blending between levels of detail for texture
>
> I generated a little demo that does a hokey texture level of detail
> using a couple of polygons with vastly different texture patterns. The
> level of detail switching distances did not overlap - one would switch
> out at 200m and the othere would switch in at that same distance.
>
> MultiGen Marcus, my understanding is that to do this you have to use a
> separate polygon for each texture. Is that correct?
>
> I ran it in perfly and the blending was excellent - no popping
> whatsoever.
>
> Angus et al, any idea how perfly does this? I tried grepping for this
> and that in the perfly source code directory and (uh, duh) found
> nothing.

1. With pfChanLODAttr() you can set a global fade range between any two
succesive LODs, or -

2. With pfLODTransition() you can set individual fade range for two indices in
a LOD.

Ran

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