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[RFE]Carve In COPs?

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I have drawn an open path in COPs using the RotoShape node. Now I want to reveal that line over time.

What node do I use for the reveal? I can't seem to find the Carve node in COPs...

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Animate another closed RotoShape as a mask? It's roto after all...

I suppose if you really needed Carve you could try using a Trace SOP to grab your RotoShape and process that into a curve for carving, but getting the points filtered, merged and ordered correctly for that sounds like a real pain. You're probably better off just doing it the old-fashioned way by animating a mask.

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I am trying to emulate After Effects, Fusion, Natron style open stroke reveal. I was hoping to get away with just drawing a single line then somehow cause the percentage of the line to grow over time (like carve). I wanted to test how robust Houdini COPs is at this time of H16.5. But my first task has stalled all progress.

 

 

 

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