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konstantin magnus

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    Konstantin Magnus
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  1. konstantin magnus
    Hi Robert, yes, you can integrate the minimal surface position with the ray node or minpos(). I've added the pig head to the food input to motivate growth there, as well. mycelium_3d.hipnc
  2. konstantin magnus
    Hi @sessionbeer, not quite the same, but this one comes close: https://procegen.konstantinmagnus.de/growing-a-mycelium
  3. Soar started following konstantin magnus
  4. konstantin magnus
    Here's a way to draw a 2D SDF-curve. sdf_curve.hipnc
  5. konstantin magnus
    Hi @Krion, the spline()-function can do this: https://www.sidefx.com/docs/houdini/vex/functions/spline.html
  6. gavotte started following konstantin magnus
  7. konstantin magnus
    Hi Masoud, there are probably some particle operators doing the same thing faster, but you could pull and push a voronoi-network according to the point scales until all spheres are deintersected. deintersect_spheres.hip
  8. konstantin magnus
    Hi @virgile, you could blend positions based on their distance towards the surface: In a point wrangle with first input mesh, second input sphere: float d_min = chf('min_distance'); float d_max = chf('max_distance'); int prim; vector uvw; float d = xyzdist(1, v@P, prim, uvw); vector pos = primuv(1, 'P', prim, uvw); float mask = smooth(d_min, d_max, d); v@P = lerp(pos, v@P, mask); conform_to_surface.hipnc
  9. konstantin magnus
    What would be the current preferred language to script patterns for Renderman inside Solaris? Eg. turning UV coordinates into dots and stripes as color vectors or float masks: vector uv = v@uv; float d = distance( frac(uv*8), {0.5, 0.5, 0.0} ); float c = 1.0 - smooth(0.2, 0.5, d); v@Cd = c;
  10. konstantin magnus
    You would need another vector called "up" that points upwards, eg. v@up = {0,1,0};
  11. konstantin magnus
    Hi Mani, before exporting you can promote primitive attributes to vertex UVs and/or vertex normals and promote them back after importing the OBJ. Wikipedia describes the OBJ-format: The OBJ file format is a simple data-format that represents 3D geometry alone — namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices. obj_attrib.hip
  12. konstantin magnus
    Try the circle from edges-node in case the holes are supposed to be circular.
  13. konstantin magnus
    Hi Curt, did you look into the hole SOP?
  14. konstantin magnus
    There is a Kelvin Wakes deformer in SideFX Lab's now: https://www.sidefx.com/docs/houdini/nodes/sop/labs--kelvin_wakes_deformer-1.0.html
  15. konstantin magnus
    How would you blend positions between meshes with different topology and uneven point count? My idea was to use the 'underlying' primitive's intrinsic UV coordinates for matching. But when transfering to world position I run into this typical "fix boundary seams"-issue known from the UV texture-node. blend_pos.hip
  16. konstantin magnus
    Polyextrude does UVs. Just assign UVs on the grid in advance and ignore the viewport issue that comes later. extrude_uv.hip
  17. konstantin magnus
    VEX version: float t = chf('threshold'); v@P.y = -abs(v@P.x - t) + t;
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