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Smart Renerding With Filters
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PoBear
Posted: Dec 17 2009, 06:57 PM


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I thought Smart Rendering meant that only the areas where a filter was applied needed full procesing. Every time I try it, the whole file is processed.

I want to fade in and out of a scene and have tried the Fill and FadeFX filters, setting the section to fade using the Curve Editor, typically I am fading over no more than 10-15 frames. Smart Rendering is set and works with no filter applied but as soon as one is, the whole file is processed.

Am I missing something in adding or setting up the filter.

Many thanks

Steve
 
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phaeron
Posted: Dec 18 2009, 04:11 AM


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Smart rendering needs special support in order to determine when a filter doesn't actually need to run. It's new enough that it's unlikely the filters you are using support it. The other way is to apply a blend curve. In that case, VirtualDub itself is fading out the filter, so it knows when the filter isn't doing anything.
 
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PoBear
  Posted: Dec 19 2009, 06:16 PM


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Many thanks. Worked as I had expected with the fill filter, even better when I remembered to fade back in wink.gif
 
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