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Table Of Contents

198 RIGID BODIES

DYNAMICS

RIGID BODIES 199

Plastic Tab

The options on the Plastic tab

enable you to dene at what

point a rigid body spring will

remain deformed.

When you stretch a spring past its elastic limit, the spring will become permanently

distorted — termed plastic deformation. On this tab, you can set the parameters that

will simulate plastic deformation for your virtual spring.

Above: A spring in the elastic state.

Below: The same spring, this

time in the plastic state. Springs

in the plastic state are shaded

orange in the viewport.

Using Below and Above, you can dene the plastic properties of the spring when

stretched and compressed. Keep in mind that a spring’s stiffness and damping will

change greatly between elastic deformation and plastic deformation.

Below

Enable this option if you want to dene the plastic properties of the spring (Start At,

Stiffness X, Damping X, Drag) when it is below its rest length (compressed, that is).

Above

When Above is enabled, you will be able to dene the plastic properties of the spring

(Start At, Stiffness X, Damping X, Drag) when it is above its rest length (stretched,

that is).