>Rick Brown said:-
>>Sending the same drawing commands to an offscreen GWorld would not speed
>>things up, I think.
>
>Reluctant as I am to disagree with Rick, a direct comparison shows the
>answer to be "yes, and by a substantial factor"  ---   4-5 times faster (on
>an iMac). See the comparison program below. A further advantage of the GW
>method is that having drawn the polys in the GWorld you can then refresh
>your window with a single call to FN CopyGW, which is _very_ fast.

4% faster in a gworld on my PowerPC 7300/200 so maybe they have changed
something in the way it draws into a gworld. But to me it still doesn't
make sense as to why it would. Its still "drawing" there. Bet this is a
good one for Mars....

Mel Patrick
mel@...