Dissolve random edges

[Mykolas 0]

Hi fellows Houdinistas.

I want to dissolve random edges on triangulated surface with even edge lengths. If I try to use a sort node to randomize + group node to create edge group there - it creates edge group with random polygons edges (all connected edges on one triangle) selected. Is there a way to select some random (not connected to each other) edges? Any way to access edge group in VEX? Houdini 15.5 here.

Thanks.
Mikas

[f1480187 664]

Easy with Convert Line node. Every edge then will have unique primitive, grouping is trivial. After that, copy edge group to original geometry.

random_edges.hipnc

[reeson 0]

Can you do this, lets say, on a single primitive of a torus (that you split with polysplit), but instead shifting the random edge selection with time, you use for each loop.

[reeson 0]

I'm attaching my hip file. How can I have a different sort seed per each primitive in this for-each loop. Cheers!

procedural subdivide11.hip

Edited January 10 by reeson

[Noobini 366]

here, I've randomized your sort and also offset in random edges selection...you can see purple lines going to both places where it's being used

vu_procedural subdivide11.hiplc

[reeson 0]

Thank you!