🚀 go-pugleaf

eker@loria.fr (Steven Eker) writes:
>If your frame redraw code takes longer than one video frame, one way of speeding
>things up is to use triple buffering rather than double buffering.
[explanation deleted]

Triple buffering is completely useless. (Almost) Here's why.

Let's say your screen redraw takes 0.9 of the frame rate time.
No problem, right?  You simply draw each frame and wait for
the vertical retrace.

Now let's say your screen redraw takes 1.1 of the frame rate time.
If the frame rate is 1/30 second per frame then your redraw takes
1.1/30 of a second.  So in 1 second you need to draw 30 frames for
a total of 1.1/30 * 30 = 1.1 seconds.  It doesn't matter how many
buffers you use, you can't do 1.1 seconds worth of drawing in 1
second.

To the person who posted their triple buffering idea:
Please state that you idea is just that, an idea. (and in this
case not a very good one.)  It will save a lot of people from
being misled.