The Attribute Transfer POP copies attributes from geometry to particles based on proximity.
How to transfer attributes from geometry to particles
Set up the attributes on your geometry.
Click the particle system you want to be affected and press Enter to confirm your selection.
Click the object you want the particles to affect and press Enter to confirm your selection.
Set SOP in the parameter editor to the node you want to transfer attributes from.
On the Attributes tab in the parameter editor, list the attributes you want to transfer. If the field is left blank , all of the node’s attributes will be transferred.
On the Conditions tab in the parameter editor, set the Distance Threshold to specify how close the particles must be to the object before the attributes are transferred.
For specific parameter help see the Attribute Transfer node help.