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Found 2 results

  1. I got this dla growth system, that generate new points from "old" points each frame. i want to instance different objects to the growing dla system. My problem is that when i use an attribute randomize "pscale" and "orient" to the growing points, that result that each point changes size for each frame, same goes for orient. Ive put my randomize in the solver, and was hope that would do it, but no luck. I guess i have to give each point a id attribute once its born, but not sure how to proceed. I went through entagmas toturial "Diffusion Limited Aggregation", that is where my dla/growth system is from, so im just going to give ewach point a randomize pscale and orient. Anyone know how to do this? dla_attribute_problem.hiplc
  2. Diffusion

    I'm sure lots of people have seen a recent video by Kouhei Nakama on vimeo - I'd really like to see if I can recreate this in Houdini. It looks like diffusion limited aggregation but also looks slightly different and i'm wondering if anyone has any insight on how to achieve this effect? The part i'm mostly unclear about is the leading edge of the diffusion - there seems to be an edge perpendicular to the direction of diffusion, which I don't think is common in DLA? This also looks like displacement so could this be achieved in COPs somehow and applied as a displacement map?
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