9

978 Glossary

Left: Spotlight with negative multiplier subtracts light from

the scene.

Right: Multiplier of 0 and a negative density on a shadow

whose color is white creates the effect of a negative shadow.

An unusual characteristic of t he Multiplier is that

youcanusenegativevaluestocreatenegativelight.

Youcanusenegativelightstofurthercontrolthe

lighting in your scene. For example, you might

wantadarkerareainthecornerofaroom.

A negative Multiplier value reverses the color of

the light, so a red light would b ecome cyan (the

complementary color). In addition, the map image

in a projector light becomes a negative image.

Multiplier Cur ve

Multiplier curves are special f u nction curves that

you use to apply animated value displacements to

other f unction curves.

When yo u edit keys and function curves, you

apply localized changes to your animation at

specific times. By applying a multiplier curve to

theoriginaltrack,youaffecttheentirerangeofthe

original animation.

A multiplier curve shifts the value of the original

track up or down. At a given f rame, the value of

a multiplier curve is a scale factor applied to the

value of the original function curve.

• The default value of a Multiplier cu rve is a

horizontal line with a value of 1.0.

• Values greater than 1.0 increase the value of the

function curve.

• Values below 1.0 decrease the value of the

function curve.

• Values less than 0.0 negatively scale the value

of the function c urve.