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This video was made as a fun collaboration between CG Forge and Ian Frederick. Here, we explore how to use optical flow for driving velocity vectors along the surface of an object in an interesting, organic way. This is just the start to what you can do with this technique though. With optical flow, you can take your simulations to the next level by introducing unique and interesting velocity values that go beyond the typical noises and workflows you see every day.

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CREATED BY

tbay312
TYLER BAY

Tyler Bay is the owner of cgforge.com - which is an online Houdini school that offers high quality courses, resources, and individual mentorships to help you achieve your Houdini goals.

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COMMENTS

  • lauralordelaure 2 months, 3 weeks ago  | 

    Is the optical flow technique easily replicable by artists new to VFX, or does it require a deep understanding of simulation dynamics? https://mapsdrivingdirections.io

    • tbay312 2 months, 3 weeks ago  | 

      If you're new to Houdini, then I would first recommend developing some fundamental knowledge first. You can get started by going here: https://www.sidefx.com/learn/getting_started/

  • Santos4 1 month, 2 weeks ago  | 

    This is a really cool technique! I'm always looking for ways to make my simulations look more organic and less predictable. The optical flow approach seems like a great way to add subtle, natural movement. It reminds me of the way things subtly shift even in a simple animation, like those old, nostalgic days playing the Dinosaur Game on Chrome, where even the ground moved slightly differently each time. Definitely going to experiment with this! Thanks for sharing.
    https://dinosaurgamefree.com/

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