Reference

Place the Hair object that should be checked for intersection into this field.

Mode

Use this setting to define which guides or hairs should be checked for intersection:

• Guides: The normal guides, not those controlled by dynamics in their rest state.
• Dynamic Guides: The guides controlled by dynamics (internally, these are seen as copies of the guides in their rest state, which are affected by dynamics).
• Hairs: Each individual hair can be checked.

Velocity Mode

Select between Per Second and Per Frame, depending on the velocity setting. Normally, Per Second will be selected automatically.