1. I have a question that has come from this — how do I grow dynamic vellum hairs? It would be a great follow up tutorial – C

  2. for houdini 18.5.532 user like me, you need enable “pin to animation from” Vellumhair node rather than adding new vellumconstraints.

  3. Frederic

    In version 19.640 (it’s been a while!) if you add the pin constraint in vellum hair you still don’t get the “first segment of the hair is aligned to the normal” behavior and the hair kinks.
    However, if you add the hair pin constraint & the pin constraint node downstream the orientation problem is fixed. I don’t fully understand why tho.
    Even with that, the vex part of this tutorial is absolutely worth going through, it’s very interesting.

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