Pre-roll generation

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Hi there, is there any node or workflow that can be utilized to procedurally generate Pre-roll animation for simulation and other effects needs?
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There's a few ways to go about this, but you could use CHOPs to analyze your point positions and extrapolate where the samples would be outside a selected time range. The Extend CHOP in Slope mode is the key. I'm attaching an example.

MOPs Plus also has a prefab node to handle this, MOPs Pre/Post Roll [github.com].

Attachments:
preroll_toadstorm.hip (269.7 KB)

MOPs (Motion Operators for Houdini): http://www.motionoperators.com [www.motionoperators.com]
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