Re: pfMorph

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Marcus Barnes (marcus++at++multigen.com)
Thu, 2 May 1996 14:07:20 -0700

On Apr 24, 2:02am, Daniel Aliaga wrote:
> Subject: pfMorph
>
>
> This might be a long shot, but has anyone experienced apparent problems
> with pfMorph node in multiprocess mode. Specifically, I am defining the
> pfMorphAttr's in the CULL phase and later specifying the pfMorphWeights and
> calling pfEvaluateMorph node, all also the CULL phase.
>
> The manual seems to imply usually evaluating the pfMorph node in the
> APP phase, but I need to do it in the CULL phase.

There was a time during the 2.0 beta period that pfMorph evaluation could
_only_ happen in the APP. I believe this restriction was removed by the time
2.0 was released, but it may still be true.

> Are there any fundamental problems with this? I suppose the pfCycleBuffers
> which are used automagically by pfMorph will act correctly?

pfCycleBuffers only walk data "downstream" from APP(0) -> CULL(0) -> DRAW(0)
and around again. Be carefull that you're not trying to use "upstream" data,
i.e. APP(0) -> CULL(0) -> APP(1) [ skipping DRAW(0) ]. Any usage that "short
circuits" the full pipeline won't work because the buffers are frame accurate
and kept "in phase".

Regards.

--
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