Re: Howto Fade Models

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Brian Furtaw (brian++at++hotsauce.clubfed.sgi.com)
Mon, 19 Apr 1999 07:45:32 -0400

You'll need to enable transparency (blending) for the fading models
pfGeoState's. To do this call pfGeoState::setMode(PFSTATE_TRANSPARENCY,
PFTR_ON). Also look at the pfTransparency() call to determine what quality of
transparency you are interested in.

Brian

On Apr 19, 12:29pm, Gary Quinn wrote:
> Subject: Howto Fade Models
> Hi all.
>
> I'd like to be able to fade models in and out of
> view, something along the lines of in/decreasing their
> transparency or alpha values.
>
> There doesn't seem to be anything documented, and
> I've tried changing geometry set alpha values -
> but that doesn't seem to do anything.
>
> A similar question was posted in Feb 1997,
> but there wasn't enough detail in the answer
> for me to implement the solution - which I didn't
> fully understand anyway :-(
>
> Can anybody help please.
>
> Cheers,
> Gary.
>
>
> --
>
> Gary Quinn, VR Centre Technical Manager
> University of Teesside SG Network Admin
> Borough Road, Middlesbrough Go Player
> Cleveland, TS1 3BA mailto:Gary++at++tees.ac.uk
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>-- End of excerpt from Gary Quinn

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Brian Furtaw  (brian++at++sgi.com)	
Graphics Guru
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