Re: Problems with ClipTexture and PFPHASE_LOCK

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Don Burns (don_burns++at++peru.engr.sgi.com)
Wed, 24 Mar 1999 08:34:35 -0800 (PST)

On Mar 22, 9:02am, Vicente Javier Sevilla Peris wrote:
> Subject: Problems with ClipTexture and PFPHASE_LOCK
> Hello All.
>
> I have developed an application that uses clipmaping and runs on a
> Onyx2. If I set the phase to PFPHASE_FREE_RUN and
>
> frameRate to 72 Hz, the framerate remains at 60Hz but in some places
> goes down to 30 Hz.
>

You need to run at frame rates appropriate for the vertical retrace rate you
have set up. If you want to run at 72 Hz, use ircombine to load a vof that
syncs at 72 Hz.

> If I set the phase to PFPHASE_LOCK and the frameRate to 30 the
> performance goes down, and works in a worse way.
>

Worse in what way?

Please read carefully the pages in the Performer manual on phase and frame
rates and choose what is appropriate. There is often a lot of confusion
regarding these.

-don

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