To enable the models in your 3D cast member to detect contact with each other, you must set up some special model properties. By adding the collision modifier to each model's modifier list and defining a handler to be called when a collision occurs, you can make your models react to collisions in appropriate ways.

Downloads the Windows collision_modifier.zip(137k)
Downloads the Macintosh collision_modifier.sea.hqx(137k)

This article covers the following topics:

	Adding the collision modifier
	Writing the collision callback
	Ensuring success

Jay Armstrong Jay has worked with Director since version 4, including roles in Technical Support, Quality Assurance, and Instructional Media. He has written documentation for Director versions 8, 8.5, and MX. 04/10/01 3D, collision, callback, setCollisionCallback