Interface XrLightSample

Real-world lighting sampled from the AR runtime this frame.

interface XrLightSample {
    direction: Vec3;
    color: Vec3;
    intensity: number;
    sh: Float32Array;
}

direction: Vec3

Direction the dominant real light travels (scene-ward), in reference space — ready to assign to DirectionalLight.direction.

color: Vec3

Dominant light color × intensity (linear RGB).

intensity: number

Scalar brightness of the dominant light (max RGB component).

Order-2 ambient spherical-harmonics, 9 coefficients × RGB (27 floats), in reference space — feed an ambient/IBL term. Empty if unavailable.

Properties