a module connected with a color attribute module
(set to blue)
a module connected with a texture attribute module
Attribute Stack
Each attribute module has two connectors, an attribute out and
an attribute in connector. You may apply more than one attribute
to an object by building a stack of attribute modules.
The same attribute modules as above applied in a stack:
Attribute Hub
An attribute hub module lets
you apply a certain attribute(stack) to a collection of objects.
All the objects that are connected to an attribute hub's matrix
out connector share it's attributes.