setLightTangent

Client

Changes where a rect light's width points, turning the rectangle about its normal.

bool setLightTangent(light light, float x, y, z)

Parameters

Name	Type	Description
light	light	The light.
x, y, z	float	Direction of the rectangle's width, three numbers or a vec3. It is normalised and made across the normal. A zero vector or one along the normal logs a warning and returns `false`.

true if it changed. With a wrong argument it logs a warning and returns false.

While the light is attached to another element, the tangent is relative to it.

local light = createRectLight(1481.0, -1771.0, 22.0, 0, -1, 0, 12)
setLightSize(light, 4, 0.5)
setLightTangent(light, 0, 0, 1)

NoteRect lights only. On a point or spot light it logs a warning naming its type and returns false.