Vray fur and particle systems / Python

[michae]

Hi,

So I am currently trying to find the best solution for my problem. I am using vray fur to add a type of sugar coating for my animated geo that I am lighting. In one scene there is a particle instancer instancing being used to duplicate the model hundreds of times. I am trying to figure a way to add the fur to the instanced particles if possible. I did add the fur to the source geo for the instancer but expecting didnt work. I am wondering if there is a way to accomplish this or maybe a post pythong script that could add it to the instanced geo once translated.

Michael

[t.petrov]

You can do it with a python script.

This is how I've done it
1. Create particle system
2. Create a plane
3. Create an instancer with the plane
4. Use this script in the post translate field:

from vray.utils import *
import maya.cmds as cmds

nodes=findByName('pPlaneShape1@node')
fur=create('GeomHair', 'instanced_fur')
if not nodes:
  cmds.error("Can't find the node")
elif fur:
  mesh=nodes[0].get('geometry')
  fur.set('mesh', mesh)
  fur.set('length_base', 1)
  fur.set('gravity_base', -3)
  fur.set('gravity_vector', Vector(0,1, 0))
  fur.set('length_base', 1)
  fur.set('bend', 1)
  fur.set('thickness_base', 0.05)
  fur.set('dir_var', 0.2)
  nodes[0].set('geometry', fur)

You'll have to modify it a bit, because the name of the plane might be different ('pPlaneShape1@node').
Also you'll lose the ability to tweak the fur interactively in the UI.