Voronoi Morph

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When my office mate Benno asked me to come up with a setup to turn a bunch of hexagons into a voronoi cell pattern, it came to my mind that there is a wide variety of techniques in Houdini to achieve such a transition effect: Using built-in nodes vs. using VEX.

When trying to guess which way would be the quickest / most elegant/ best to build this setup I had the idea of comparing what it measn to build the core of such an asset using either standard nodes only vs. employing a bit of VEX to set up the effect.

After trying out both ways, I personally ended up liking the VEX way better – but that might be only me. Let us know how you’d have tackled this setup and what technique you prefer!

Download Project File (.hip)

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  1. Good stuff guys! 🙂 One thing to add, there’s an even faster way to generate uniform hexagons via voronoi. Just use the Points From Volume SOP set to Tetrahedral, wired into the same grid with 2×2 rows/columns. 3 nodes down to 1!

  2. mike says

    really appreciate the sop side-by-side with the vex workflows. I’m a full time fx artist and the sop setup would have been how I did this kind of effect. However I’m trying to improve my vex, so this is the perfect kind of tutorial to help me improve. Very cool

  3. Bruno says

    I’m a total beginner in Houdini. How would I extrude these Voronoi polygons to get the effect of the animation at the start of the video? And the top face of the extrude has a smaller scale as well.

    Thank you

    • Moritz says


      the Polyextrude-SOP is your friend 🙂

      Cheers, Mo

      • Bruno says

        Thank you, and how they animated the voronoi, the patterns change, it looks alive.

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