Re: Performer 1.0 on Extremes

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Jim Helman (jimh++at++surreal)
Mon, 13 Dec 93 12:13:50 -0800

  On Dec 13, 7:31am, Jim Helman wrote:
> Subject: Re: Performer 1.0 on Extremes
|
| Performer 1.0 doesn't know about the Indigo2 Extreme, since it didn't
| exist back then. The clock problem I'm aware of would not affect
| frame rate (run osview on an rlogin or tty and look at the swapbuf
| rate), but could cause bad time values. If the application is doing
| pfGetTime()-based animations, either low frame rate or bad times could
| cause "Extreme" jerkiness.

Chris Fouts just corrected me. There is a frame rate problem when
running in PFPHASE_FIXED or PFPHASE_FLOAT on an Extreme because
Performer will attempt to throttle to a constant frame rate using
the bad time values. Try PFPHASE_FREE. In 1.2, the time problem
was fixed, and the Extreme now supports the pfVClock(), so frame
control is better.

rgds,

-jim helman

jimh++at++surreal.asd.sgi.com
415/390-1151

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