You have 3 options. Use a render in image with Enable Feedback
Rendering on, a CIAccumulator or Iteration as in Stix. Answering
Alexandre's question will help us help you :D
.xX
On Nov 29, 2007, at 1:15 PM, Alexandre Van de Sande wrote:
do you have a picture of a ball moving on the screen with qc or do you
have a movie of a moving ball?
On Nov 29, 2007 6:37 PM, Jack Hayward <[EMAIL PROTECTED]>
wrote:
Hello everyone,
I am trying to implement an effect where I create ghost images that
sit behind any object that moves across the screen.
An effect that would turn a moving ball of light into a comet.
I've been playing with the accumulator, and looked at example
compositions and have not been able to get anything satisfactory yet.
The closest thing is the "stix.qtz" example, but that is done by
redrawing the primary image many times - not what I'm after.
Can anyone offer help?
Is there some GL code somewhere that'll do this?
Thanks
Jack
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Alexandre Van de Sande
www.wanderingabout.com
rio de janeiro
҉
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