Which node breaks a geometry into primitives using an attribute ?

[AntoineSfx]

I'm trying to do: grid -> cluster ->  create one primitive per group of points with the same cluster value

It must be trivial but I can't find the node / checkbox somewhere that does this thing..

Edited May 22, 2018 by AntoineSfx

[3dome]

you could promote the cluster attrib to prims (mode max or min), then use a primwrangle with s@name = sprintf("cluster_%d", i@cluster); and then assemble (tick off create name)

[Noobini]

I'm probably misunderstanding the question...but is it this simple ? You can turn divide on/off if you want...

ClusterPrims.hipnc

[acey195]

you may also try promoting the attributes to vertex attribs, and then applying a vertexSplit node, if you actually need to split the primiitives (so you could use a connectivity sop later for instance)

also continuing from 3Dome, you could also do both in one node:

string grp = sprintf("cluster_%d", i@cluster);
setprimgroup(0, grp, @primnum, 1);

[animatrix]

Primitive Split SOP

[AntoineSfx]

On 04/06/2018 at 5:10 PM, pusat said:

Primitive Split SOP

Yes, that solved my problem

I did this:

cluster -> attribpromote (points primitives) -> primitive Split -> divide (Remove shared edges)

[Atom]

And now there is a MOPs solution as well.

 

Edited June 6, 2018 by Atom