[racket] How does Universe.ss paint? How is it so optimized with almost little to no flickring?

I have a package on PLaneT called animated-canvas (
http://planet.plt-scheme.org/display.ss?package=animated-canvas.plt&owner=williams)
that does the double buffering for you. There are examples of its usage
there.

On Wed, Sep 22, 2010 at 7:59 PM, Mathew Kurian <bluejamesbond at gmail.com>wrote:

> Hey everybody,
>
> I was wondering how universe.ss is so optimized, there is
> no flickering (esp on faster pcs). What approach does it take?
>
> Thank you
>
> Sincerely,
>
> Mathew Kurian
>
> --
> Mathew Kurian
> Seven Lakes High School
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