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Found 2 results

  1. Generate a line art with curves

    Hi everyone, I am looking for a good approach to generating curves that follow the curvature of a mesh. The goal is to generate line art in 3D, so not in post-process. First Approach My first attempt was based on vertex normal to find the lines, but if I push too far the sharp edge detection, I end up with duplicated lines along my curvature which gives an undesirable result. Expected result: Second Approach My second idea was to scatter points on my mesh and push these points in the direction that the principal curvature method gives me. I keep pushing the points in that direction as long as the next position has a stronger curvature than the previous one. The problem is that the principal curvature doesn't give me a constant direction through my mesh, and can flip from one vertex to another. The other problem is that I don't know how to connect the points into a curve. Thanks in advance for your help.
  2. Sketch and etch style

    Like everyone else, I use a bunch of tools for my work. But I found myself using Houdini more and more for 2d work, including making a sketch or etch style of pictures like these. I did it using sops, and while I imagine there is at least a million ways to do that in Houdini, it was bloody fast, took just a few nodes, and with plentiful variations.
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