feat: make overlay initialization array optional and bump Reveal vers…

…ion to 4.15.1 (#4640)

* feat: make overlay initialization array optional

* chore: add fallback for undefined array

* chore: revert optional-change, instead set reasonable maximum

* chore: bump reveal version te 4.15.1

viewer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cognite/reveal",
-  "version": "4.15.0",
+  "version": "4.15.1",
   "description": "WebGL based 3D viewer for CAD and point clouds processed in Cognite Data Fusion.",
   "homepage": "https://github.com/cognitedata/reveal/tree/master/viewer",
   "repository": {

viewer/packages/3d-overlays/src/Overlay3DCollection.ts

@@ -57,6 +57,14 @@ export class Overlay3DCollection<MetadataType = DefaultOverlay3DContentType>
   private readonly _rayCaster = new Raycaster();
   private readonly _cameraChangeDebouncer = new CameraChangeThrottler();
 
+  /**
+   * Construct a collection of 3D overlay icons
+   *
+   * @param overlayInfos Initializes the collection with the list of overlays. The length
+   * of the list will be the maximum allowed number of icons in this collection, unless it's empty,
+   * in which case a default maximum limit will be used instead
+   * @param options Additional options for this overlay collection
+   */
   constructor(overlayInfos: OverlayInfo<MetadataType>[], options?: Overlay3DCollectionOptions) {
     super();
 
@@ -69,7 +77,7 @@ export class Overlay3DCollection<MetadataType = DefaultOverlay3DContentType>
     };
 
     this._overlayPoints = new OverlayPointsObject(
-      overlayInfos ? overlayInfos.length : this.DefaultMaxPoints,
+      overlayInfos.length > 0 ? overlayInfos.length : this.DefaultMaxPoints,
       {
         spriteTexture: this._sharedTextures.color,
         maskTexture: this._sharedTextures.mask,