About Adjusting a Light Direction

The direction options help you define the position of the direction vector.

The direction vector is the privileged direction of illumination of the source.

It is visualized in the 3D area by the red arrow whose origin is the light origin.

The three boxes let you define the position of the direction vector along the X, Y, and Z directions.

When you modify a value, the light is updated in the work area.

The step-by-step rotation options let you define the rotation angle in degrees.

By default, the value is 10.00.

You can enter a value in the box.

When the rotation angle is defined, you can rotate your light in the 3D area, around the corresponding axis by the angle you specified.

Option	Description	Example
X	Rotates the light clockwise around the X axis.
X-	Rotates the light counterclockwise around the X axis.

The quick orientation options let you position the light parallel to the absolute axis system.

The following options are available:

Option	Description	Example
Y	Modifies the light origin to position the light parallel to the Y axis.
-Y	Inverts the position of the light along the Y axis.