RE: [info-performer] How to calculate change in Frame time.

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Harri.Mahonen++at++seamk.fi
Date: 02/03/2006 03:04:07

Hi,

> Is there any library utility for calculating change in Frame time
> (deltaFrameTime).

Simple way is to use pfGetTime. You need three variables: current time, last time and delta. Set all to zero.

1. At the beginning of the frame, get the current time with pfGetTime.
2. Calculate delta by (current time - last time) / 1000.0
3. Use the delta how you see fit.
4. At the end of the frame assign the current time you got at step 1 to last time.
5. Repeat.

This is what I use and it works. The very first frame's delta time is 0, but that isn't an issue (for my purposes, at least).

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