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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | 13x 12x 11x 1x 10x 10x 10x | import Cartesian3 from "../Core/Cartesian3.js";
import Check from "../Core/Check.js";
import Color from "../Core/Color.js";
import DeveloperError from "../Core/DeveloperError.js";
/**
* A light that gets emitted in a single direction from infinitely far away.
*
* @param {object} options Object with the following properties:
* @param {Cartesian3} options.direction The direction in which light gets emitted.
* @param {Color} [options.color=Color.WHITE] The color of the light.
* @param {number} [options.intensity=1.0] The intensity of the light.
*
* @exception {DeveloperError} options.direction cannot be zero-length
*
* @alias DirectionalLight
* @constructor
*/
function DirectionalLight(options) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("options", options);
Check.typeOf.object("options.direction", options.direction);
if (Cartesian3.equals(options.direction, Cartesian3.ZERO)) {
throw new DeveloperError("options.direction cannot be zero-length");
}
//>>includeEnd('debug');
/**
* The direction in which light gets emitted.
* @type {Cartesian3}
*/
this.direction = Cartesian3.clone(options.direction);
/**
* The color of the light.
* @type {Color}
* @default Color.WHITE
*/
this.color = Color.clone(options.color ?? Color.WHITE);
/**
* The intensity of the light.
* @type {number}
* @default 1.0
*/
this.intensity = options.intensity ?? 1.0;
}
export default DirectionalLight;
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