As suggested by Chris, single buffer rendering is the good choice.  
 Then send a bang from [metro 1] (for exemple) to [gemhead] to force  
 the rendering (to your [gemhead] with the movie and to your [gemhead]  
 for the 'painting').
 ++
 
 Jack
 
 
 Le 21 juil. 08 à 23:51, Spencer Russell a écrit :
 
 > On Mon, Jul 21, 2008 at 5:28 PM, chris clepper  
 > <cgclepper@gmail.com> wrote:
 >> Single buffer rendering can be used for 'painting' using a geos as  
 >> various
 >> brush types.
 >
 > The difficulty though, is that I want to draw some parts in a freehand
 > single-buffer style, but I want it to be mixed and layered with video
 > that's drawn normally.
 >
 > thanks,
 > spencer
 >
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