Animating Physics Material Types 



Body types in Lucid define how a simulated object with behave. Non-collision body types can be cloth, inflated, fluid, rigid, and soft. Depending on the chosen body type object will be broken down into particle lattices connected in various ways. For example, a cloth and inflated object will have one particle per each vertex in the object and a fluid object will have particles which fill the whole volume of the object.

Lucid allows the body type of an object to change during simulation. For example, an object can start off as a fluid and then switch to a solid mid-way through the simulation. This allows to simulate effects such as instant freezing, melting, and more exotic effects like turning a fluid volume into a cloth.


Animating body type 

To animate the body type simply set 3ds Max auto-key option on and change the body drop-down value in the Lucid modifier. Once you have changed the body type, it is important to modify the interpolation type of the created keys to step instead of linear or Bezier. This will ensure that the type will be changed directly to the value you specify instead of going over all the types in between during intermediate keyframes.

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