Forums Houdini Indie and Apprentice calculating neighbours of primitive cubes

calculating neighbours of primitive cubes

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212AA
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Hi there,

I was wondering how i might go about storing the neighbours of primitive cubes. i've packed the geometry so i have 1 ID per cube but i wanted to get some advice on how i might store each cube's neighbours, preferably in python?

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mestela
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nearpoints will do that for you.

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nearpoints_example.hipnc (58.5 KB)

http://www.tokeru.com/cgwiki [www.tokeru.com]
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212AA
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hmm, i need to obtain the diagonal neighbours also, so all the primitives that share a vertex with the primitive cube in question
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mestela
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You can increase the radius of the search to get the diagonals, the docs should give you all you need to know:

http://www.sidefx.com/docs/houdini/vex/functions/nearpoints [www.sidefx.com]

If you've connected your packed prims with edges, then you want to use the neighbours function instead:

http://www.sidefx.com/docs/houdini/vex/functions/neighbours [www.sidefx.com]
Edited by mestela - 2017年9月9日 17:30:39
http://www.tokeru.com/cgwiki [www.tokeru.com]
https://www.patreon.com/mattestela [www.patreon.com]
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212AA
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thanks mestela i'll give it a go
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