voronoisplit - piece attrb. problem

[luthio1]

Hey there,

 

I want to use the voronoisplit node to cut my geometry and then i want to group each piece of the resulting geometry.
But i can not acces the "piece" attribute correctly. (it seems to be an integer value)

In the example file i provide you with a setup in which i trie to use the piece atrb for the red color channel to demonstrate the problem.

I hope someone can help me out. This realy makes me headache.

Kind regards

Luk@s

 

voronoisplit_BUG.hip

[Novaa]

You have to promote your "piece" attribute to points and then call it with the "ramp from attribute" option in the color node.

voronoisplit_fixed.hip

Edited March 17, 2014 by Novaa

[Skybar]

You can't use $PIECE because that variable doesn't exist, but we can easily create it with an AttribCreate SOP. And then we can use the Partition SOP with $PIECE to put them in seperate groups. Hope it helps.

 

voronoisplit_BUG_dv.hipnc

[luthio1]

Thank you both i will have a look at your solutions.
I alsou found another way with a simple forach node and the piece as atrb. value.

 

[luthio1]

@ Novaa:

I still get a complete black cube in your file. It doesnt matter whicht values i feed into the color node or how i set the range or the color (still beeing in the Ramp From Attribute section).
Do you get a different color for each piece?
(i already solved the group problem but i would like to understand your way with the "ramp from atrb." as well ).

Kind regards

Luk@s

[Novaa]

Weird , it seems to work for me.