= Animating with fur =

NOTE:
    This tutorial is a detailed look into what goes on at the network level. An automatic way to create the same effect is to use the [Add Dynamics|/shelf/furdynamics] tool on the shelf.

When animating the fur, it is important to use a [Rest SOP|Node:sop/rest]. If you don't, fur will be added and subtracted when the skin is deformed instead of being stretched over the surface, which will look unnatural.

This procedure is a continuation of [Basic fur setup|basicsetup], but can also be done using guides.

# Add a [Icon:SOP/rest][Rest SOP|Node:sop/rest] after your [grid|Node:SOP/grid] node and connect the grid to both of the inputs.

# Insert a [Icon:SOP/xform][Transform SOP|Node:sop/xform] after the [Icon:SOP/rest][Rest SOP|Node:sop/rest] and animate your character.

[Image:/images/fur/anim_nodes.png]

The following is an example of what deformed skin would look like when animating without the [Rest SOP|Node:sop/rest]. As you can see, the fur is filled in on the stretched skin and does not appear natural.

[Image:/images/fur/anim_norest.png]

The following is an example of what the deformed skin would look like when using with [Rest SOP|Node:sop/rest]. As you can see, the fur spacing is stretched with the deformed skin. No extra fur is added.

[Image:/images/fur/anim_rest.png]

NOTE:
    You must insert a [Rest SOP|Node:sop/rest] for animation to work properly.