Light: Unify toJSON() implementations.

types/three/src/lights/DirectionalLight.d.ts

@@ -1,8 +1,14 @@
-import { Object3D } from "../core/Object3D.js";
+import { JSONMeta, Object3D } from "../core/Object3D.js";
 import { ColorRepresentation } from "../math/Color.js";
 import { Vector3 } from "../math/Vector3.js";
 import { DirectionalLightShadow } from "./DirectionalLightShadow.js";
-import { Light } from "./Light.js";
+import { Light, LightJSON } from "./Light.js";
+import { LightShadowJSON } from "./LightShadow.js";
+
+export interface DirectionalLightJSON extends LightJSON {
+    shadow: LightShadowJSON;
+    target: string;
+}
 
 /**
  * A light that gets emitted in a specific direction
@@ -99,4 +105,6 @@ export class DirectionalLight extends Light<DirectionalLightShadow> {
      * Call this method whenever this instance is no longer used in your app.
      */
     dispose(): void;
+
+    toJSON(meta?: JSONMeta): DirectionalLightJSON;
 }

types/three/src/lights/HemisphereLight.d.ts

@@ -1,6 +1,11 @@
+import { JSONMeta } from "../core/Object3D.js";
 import { Color, ColorRepresentation } from "../math/Color.js";
 import { Vector3 } from "../math/Vector3.js";
-import { Light } from "./Light.js";
+import { Light, LightJSON } from "./Light.js";
+
+export interface HemisphereLightJSON extends LightJSON {
+    groundColor: number;
+}
 
 /**
  * A light source positioned directly above the scene, with color fading from the sky color to the ground color.
@@ -58,4 +63,6 @@ export class HemisphereLight extends Light<undefined> {
      * @defaultValue `new THREE.Color()` set to white _(0xffffff)_.
      */
     groundColor: Color;
+
+    toJSON(meta?: JSONMeta): HemisphereLightJSON;
 }

types/three/src/lights/Light.d.ts

@@ -5,16 +5,6 @@ import { LightShadow, LightShadowJSON } from "./LightShadow.js";
 export interface LightJSON extends Object3DJSON {
     color: number;
     intensity: number;
-
-    groundColor?: number;
-
-    distance?: number;
-    angle?: number;
-    decay?: number;
-    penumbra?: number;
-
-    shadow?: LightShadowJSON;
-    target?: string;
 }
 
 /**

types/three/src/lights/PointLight.d.ts

@@ -1,7 +1,16 @@
+import { JSONMeta } from "../core/Object3D.js";
 import { ColorRepresentation } from "../math/Color.js";
-import { Light } from "./Light.js";
+import { Light, LightJSON } from "./Light.js";
+import { LightShadowJSON } from "./LightShadow.js";
 import { PointLightShadow } from "./PointLightShadow.js";
 
+export interface PointLightJSON extends LightJSON {
+    distance: number;
+    decay: number;
+
+    shadow: LightShadowJSON;
+}
+
 /**
  * A light that gets emitted from a single point in all directions
  * @remarks
@@ -99,4 +108,6 @@ export class PointLight extends Light<PointLightShadow> {
      * @remarks Expects a `Float`
      */
     power: number;
+
+    toJSON(meta?: JSONMeta): PointLightJSON;
 }

types/three/src/lights/SpotLight.d.ts

@@ -1,10 +1,23 @@
-import { Object3D } from "../core/Object3D.js";
+import { JSONMeta, Object3D } from "../core/Object3D.js";
 import { ColorRepresentation } from "../math/Color.js";
 import { Vector3 } from "../math/Vector3.js";
 import { Texture } from "../textures/Texture.js";
-import { Light } from "./Light.js";
+import { Light, LightJSON } from "./Light.js";
+import { LightShadowJSON } from "./LightShadow.js";
 import { SpotLightShadow } from "./SpotLightShadow.js";
 
+export interface SpotLightJSON extends LightJSON {
+    distance: number;
+    angle: number;
+    decay: number;
+    penumbra: number;
+
+    target: string;
+    map?: string | undefined;
+
+    shadow: LightShadowJSON;
+}
+
 /**
  * This light gets emitted from a single point in one direction, along a cone that increases in size the further from the light it gets.
  * @example
@@ -161,4 +174,6 @@ export class SpotLight extends Light<SpotLightShadow> {
      * @remarks **Warning**: {@link SpotLight.map} is disabled if {@link SpotLight.castShadow} is `false`.
      */
     map: Texture | null;
+
+    toJSON(meta?: JSONMeta): SpotLightJSON;
 }