modifying draw-method

["Klaus Häming" <khaeming@web.de>]

Hi,

I have to synchronize two Instances of Performer running on two Computers.
I want these two Instances to draw a frame nearly at the same time.

My Idea to solve this problem, is to use a DRAW callback function such as
this one:

void DrawFunc(pfChannel *chan, void *data) {

	thisComputerIsReadyToDraw();	//to tell the other
					//Computer I'm ready

	while(otherComputerIsNotAtThisPoint()){
		//wait wait wait
	}

	pfDraw();

}

Is this a appropriate method?

Or is it possible to modify the pfDraw() in a way, that the synchronisation takes effect shortly before swapping the buffers? For this purpose I would have to know, what pfDraw() does in detail.

tia,
Klaus

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