Re: pfFrameRate not work ????

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Angus Dorbie (dorbie++at++bitch.reading.sgi.com)
Mon, 10 Mar 1997 09:21:07 +0000

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On Mar 10, 2:56am, Ren-Jye Yu wrote:
> Subject: Re: pfFrameRate not work ????
>
> ......In your reply, you
> told me that video rate == field rate. Do you suguest that pfVideoRate ==
> pfFieldRate? What is the different between these two commands? Have a nice
day.

No, there's an important difference between the terminology I used in
my reply and the functionality of the performer API call pfFieldRate.

The manual states that the pfFieldRate can be used to specify the
frame rate as a count of video fields.

So although the field rate == the video rate the Performer API call
pfFieldRate is actually like the iris gl swapinterval call and is
used to specify a minimum integer number of video fields between swaps.

Cheers,Angus.
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