diff --git a/src/core/renderer/API.md b/src/core/renderer/API.md
index d68cbce61..1d1da551a 100644
--- a/src/core/renderer/API.md
+++ b/src/core/renderer/API.md
@@ -85,7 +85,7 @@ Base class for all 3D Tiles content loaders. Handles fetching and parsing tile c
 ### .fetchOptions
 
 ```js
-fetchOptions: Object
+fetchOptions: Object = {}
 ```
 
 Options passed to `fetch` when loading tile content.
@@ -94,7 +94,7 @@ Options passed to `fetch` when loading tile content.
 ### .workingPath
 
 ```js
-workingPath: string
+workingPath: string = ''
 ```
 
 Base URL used to resolve relative external URLs.
@@ -348,17 +348,17 @@ are in use each frame and evicts unused items when the cache exceeds its size li
 ### .unloadPriorityCallback
 
 ```js
-unloadPriorityCallback: ( a: any, b: any ) => number | null
+unloadPriorityCallback: ( a: any, b: any ) => number | null = null
 ```
 
 Comparator used to determine eviction order. Items that sort last are evicted first.
-Defaults to `null` (eviction order is by last-used time).
+When `null`, eviction order is by last-used time.
 
 
 ### .minSize
 
 ```js
-minSize: number
+minSize: number = 6000
 ```
 
 Minimum number of items to keep in the cache after eviction.
@@ -367,7 +367,7 @@ Minimum number of items to keep in the cache after eviction.
 ### .maxSize
 
 ```js
-maxSize: number
+maxSize: number = 8000
 ```
 
 Maximum number of items before eviction is triggered.
@@ -376,7 +376,7 @@ Maximum number of items before eviction is triggered.
 ### .minBytesSize
 
 ```js
-minBytesSize: number
+minBytesSize: number = ~322MB
 ```
 
 Minimum total bytes to retain after eviction.
@@ -387,7 +387,7 @@ Minimum total bytes to retain after eviction.
 ### .maxBytesSize
 
 ```js
-maxBytesSize: number
+maxBytesSize: number = ~430MB
 ```
 
 Maximum total bytes before eviction is triggered.
@@ -398,7 +398,7 @@ Maximum total bytes before eviction is triggered.
 ### .unloadPercent
 
 ```js
-unloadPercent: number
+unloadPercent: number = 0.05
 ```
 
 Fraction of excess items/bytes to unload per eviction pass.
@@ -407,7 +407,7 @@ Fraction of excess items/bytes to unload per eviction pass.
 ### .autoMarkUnused
 
 ```js
-autoMarkUnused: boolean
+autoMarkUnused: boolean = true
 ```
 
 If true, items are automatically marked as unused at the start of each eviction pass.
@@ -551,7 +551,7 @@ returns whether tasks are queued or actively running
 ### .maxJobs
 
 ```js
-maxJobs: number
+maxJobs: number = 6
 ```
 
 Maximum number of jobs that can run concurrently.
@@ -560,7 +560,7 @@ Maximum number of jobs that can run concurrently.
 ### .autoUpdate
 
 ```js
-autoUpdate: boolean
+autoUpdate: boolean = true
 ```
 
 If true, job runs are automatically scheduled after `add` and after each job completes.
@@ -569,11 +569,11 @@ If true, job runs are automatically scheduled after `add` and after each job com
 ### .priorityCallback
 
 ```js
-priorityCallback: ( a: any, b: any ) => number | null
+priorityCallback: ( a: any, b: any ) => number | null = null
 ```
 
 Comparator used to sort queued items. Higher-priority items should sort last
-(i.e. return positive when `itemA` should run before `itemB`). Defaults to `null`.
+(i.e. return positive when `itemA` should run before `itemB`).
 
 
 ### .sort
@@ -773,7 +773,7 @@ The loaded root tileset object, or null if not yet loaded.
 ### .fetchOptions
 
 ```js
-fetchOptions: RequestInit
+fetchOptions: RequestInit = {}
 ```
 
 Options passed to `fetch` when loading tile and tileset resources.
@@ -863,7 +863,7 @@ Loading and rendering statistics updated each frame. Fields:
 ### .errorTarget
 
 ```js
-errorTarget: number
+errorTarget: number = 16
 ```
 
 Target screen-space error in pixels to aim for when updating the geometry. Tiles will
@@ -875,7 +875,7 @@ of the 3D Tiles specification for more information.
 ### .displayActiveTiles
 
 ```js
-displayActiveTiles: boolean
+displayActiveTiles: boolean = false
 ```
 
 "Active tiles" are those that are loaded and available but not necessarily visible.
@@ -888,7 +888,7 @@ camera view not accounted for by the tiles renderer.
 ### .maxDepth
 
 ```js
-maxDepth: number
+maxDepth: number = Infinity
 ```
 
 Maximum depth in the tile hierarchy to traverse. Tiles deeper than this are skipped.
@@ -897,7 +897,7 @@ Maximum depth in the tile hierarchy to traverse. Tiles deeper than this are skip
 ### .optimizedLoadStrategy
 
 ```js
-optimizedLoadStrategy: boolean
+optimizedLoadStrategy: boolean = false
 ```
 
 **Experimental.** Enables an optimized tile loading strategy that loads only the tiles
@@ -907,9 +907,6 @@ tiles to load first. Prevents visual gaps and flashing during camera movement.
 
 Based in part on [Cesium Native tile selection](https://cesium.com/learn/cesium-native/ref-doc/selection-algorithm-details.html).
 
-Default is `false`, which uses the previous approach of loading all parent and sibling
-tiles for guaranteed smooth transitions.
-
 > [!WARNING]
 > Setting is currently incompatible with plugins that split tiles and on-the-fly generate and
 > dispose of child tiles including the `ImageOverlayPlugin` `enableTileSplitting` setting,
@@ -919,7 +916,7 @@ tiles for guaranteed smooth transitions.
 ### .loadSiblings
 
 ```js
-loadSiblings: boolean
+loadSiblings: boolean = true
 ```
 
 **Experimental.** When `true`, sibling tiles are loaded together to prevent gaps during
@@ -933,7 +930,7 @@ Only applies when `optimizedLoadStrategy` is enabled.
 ### .loadAncestors
 
 ```js
-loadAncestors: boolean
+loadAncestors: boolean = false
 ```
 
 **Experimental.** When `true`, ancestor tiles are queued for download and displayed as a
@@ -947,7 +944,7 @@ Only applies when `optimizedLoadStrategy` is enabled.
 ### .maxTilesProcessed
 
 ```js
-maxTilesProcessed: number
+maxTilesProcessed: number = 250
 ```
 
 The number of tiles to process immediately when traversing the tile set to determine
diff --git a/src/core/renderer/loaders/LoaderBase.js b/src/core/renderer/loaders/LoaderBase.js
index 476892a2b..dbaf54513 100644
--- a/src/core/renderer/loaders/LoaderBase.js
+++ b/src/core/renderer/loaders/LoaderBase.js
@@ -10,12 +10,14 @@ export class LoaderBase {
 		/**
 		 * Options passed to `fetch` when loading tile content.
 		 * @type {Object}
+		 * @default {}
 		 */
 		this.fetchOptions = {};
 
 		/**
 		 * Base URL used to resolve relative external URLs.
 		 * @type {string}
+		 * @default ''
 		 */
 		this.workingPath = '';
 
diff --git a/src/core/renderer/tiles/TilesRendererBase.js b/src/core/renderer/tiles/TilesRendererBase.js
index b83701be2..a8e552df6 100644
--- a/src/core/renderer/tiles/TilesRendererBase.js
+++ b/src/core/renderer/tiles/TilesRendererBase.js
@@ -403,6 +403,7 @@ export class TilesRendererBase {
 		/**
 		 * Options passed to `fetch` when loading tile and tileset resources.
 		 * @type {RequestInit}
+		 * @default {}
 		 */
 		this.fetchOptions = {};
 		this.plugins = [];
@@ -544,6 +545,7 @@ export class TilesRendererBase {
 		 * {@link https://github.com/CesiumGS/3d-tiles/tree/master/specification#geometric-error geometric error section}
 		 * of the 3D Tiles specification for more information.
 		 * @type {number}
+		 * @default 16
 		 */
 		this.errorTarget = 16.0;
 		this._errorThreshold = Infinity;
@@ -555,12 +557,14 @@ export class TilesRendererBase {
 		 * Setting this to `true` keeps them in the scene so they can be rendered from an outside
 		 * camera view not accounted for by the tiles renderer.
 		 * @type {boolean}
+		 * @default false
 		 */
 		this.displayActiveTiles = false;
 
 		/**
 		 * Maximum depth in the tile hierarchy to traverse. Tiles deeper than this are skipped.
 		 * @type {number}
+		 * @default Infinity
 		 */
 		this.maxDepth = Infinity;
 
@@ -571,14 +575,12 @@ export class TilesRendererBase {
 		 * tiles to load first. Prevents visual gaps and flashing during camera movement.
 		 *
 		 * Based in part on {@link https://cesium.com/learn/cesium-native/ref-doc/selection-algorithm-details.html Cesium Native tile selection}.
-		 *
-		 * Default is `false`, which uses the previous approach of loading all parent and sibling
-		 * tiles for guaranteed smooth transitions.
 		 * @warn Setting is currently incompatible with plugins that split tiles and on-the-fly generate and
 		 * dispose of child tiles including the `ImageOverlayPlugin` `enableTileSplitting` setting,
 		 * `QuantizedMeshPlugin`, & `ImageFormatPlugin` subclasses (XYZ, TMS, etc). Any tile sets
 		 * that share caches or queues must also use the same setting.
 		 * @type {boolean}
+		 * @default false
 		 */
 		this.optimizedLoadStrategy = false;
 
@@ -590,6 +592,7 @@ export class TilesRendererBase {
 		 *
 		 * Only applies when `optimizedLoadStrategy` is enabled.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.loadSiblings = true;
 
@@ -601,6 +604,7 @@ export class TilesRendererBase {
 		 *
 		 * Only applies when `optimizedLoadStrategy` is enabled.
 		 * @type {boolean}
+		 * @default false
 		 */
 		this.loadAncestors = false;
 
@@ -610,6 +614,7 @@ export class TilesRendererBase {
 		 * at once when a new tile set is available, while higher values process more tiles
 		 * immediately so data can be downloaded and displayed sooner.
 		 * @type {number}
+		 * @default 250
 		 */
 		this.maxTilesProcessed = 250;
 
diff --git a/src/core/renderer/utilities/LRUCache.js b/src/core/renderer/utilities/LRUCache.js
index 47e252c83..d90501e11 100644
--- a/src/core/renderer/utilities/LRUCache.js
+++ b/src/core/renderer/utilities/LRUCache.js
@@ -22,8 +22,9 @@ class LRUCache {
 
 	/**
 	 * Comparator used to determine eviction order. Items that sort last are evicted first.
-	 * Defaults to `null` (eviction order is by last-used time).
+	 * When `null`, eviction order is by last-used time.
 	 * @type {UnloadPriorityCallback|null}
+	 * @default null
 	 */
 	get unloadPriorityCallback() {
 
@@ -60,12 +61,14 @@ class LRUCache {
 		/**
 		 * Minimum number of items to keep in the cache after eviction.
 		 * @type {number}
+		 * @default 6000
 		 */
 		this.minSize = 6000;
 
 		/**
 		 * Maximum number of items before eviction is triggered.
 		 * @type {number}
+		 * @default 8000
 		 */
 		this.maxSize = 8000;
 
@@ -73,6 +76,7 @@ class LRUCache {
 		 * Minimum total bytes to retain after eviction.
 		 * @note Only works with three.js r166 or higher.
 		 * @type {number}
+		 * @default ~322MB
 		 */
 		this.minBytesSize = 0.3 * GIGABYTE_BYTES;
 
@@ -80,18 +84,21 @@ class LRUCache {
 		 * Maximum total bytes before eviction is triggered.
 		 * @note Only works with three.js r166 or higher.
 		 * @type {number}
+		 * @default ~430MB
 		 */
 		this.maxBytesSize = 0.4 * GIGABYTE_BYTES;
 
 		/**
 		 * Fraction of excess items/bytes to unload per eviction pass.
 		 * @type {number}
+		 * @default 0.05
 		 */
 		this.unloadPercent = 0.05;
 
 		/**
 		 * If true, items are automatically marked as unused at the start of each eviction pass.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.autoMarkUnused = true;
 
diff --git a/src/core/renderer/utilities/PriorityQueue.js b/src/core/renderer/utilities/PriorityQueue.js
index 8648f4801..c802364e7 100644
--- a/src/core/renderer/utilities/PriorityQueue.js
+++ b/src/core/renderer/utilities/PriorityQueue.js
@@ -60,10 +60,10 @@ export class PriorityQueue {
 
 	/**
 	 * Callback used to schedule when to run jobs next, so more work doesn't happen in a
-	 * single frame than there is time for. Defaults to `requestAnimationFrame`. Should be
-	 * overridden in scenarios where `requestAnimationFrame` is not reliable, such as when
-	 * running in WebXR.
+	 * single frame than there is time for. Should be overridden in scenarios where
+	 * `requestAnimationFrame` is not reliable, such as when running in WebXR.
 	 * @type {SchedulingCallback}
+	 * @default requestAnimationFrame
 	 * @deprecated
 	 */
 	get schedulingCallback() {
@@ -84,6 +84,7 @@ export class PriorityQueue {
 		/**
 		 * Maximum number of jobs that can run concurrently.
 		 * @type {number}
+		 * @default 6
 		 */
 		this.maxJobs = 6;
 
@@ -95,13 +96,15 @@ export class PriorityQueue {
 		/**
 		 * If true, job runs are automatically scheduled after `add` and after each job completes.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.autoUpdate = true;
 
 		/**
 		 * Comparator used to sort queued items. Higher-priority items should sort last
-		 * (i.e. return positive when `itemA` should run before `itemB`). Defaults to `null`.
+		 * (i.e. return positive when `itemA` should run before `itemB`).
 		 * @type {PriorityCallback|null}
+		 * @default null
 		 */
 		this.priorityCallback = null;
 
diff --git a/src/three/plugins/API.md b/src/three/plugins/API.md
index ad44bc574..26a5f7b56 100644
--- a/src/three/plugins/API.md
+++ b/src/three/plugins/API.md
@@ -709,7 +709,7 @@ order, and an unlit rendering mode. Color modes are available via the static
 ### .getDebugColor
 
 ```js
-getDebugColor: ( val: number, target: Color ) => void
+getDebugColor: ( val: number, target: Color ) => void = ( value, target ) => target.setRGB( value, value, value )
 ```
 
 Maps a normalized [0, 1] value to a `Color` for debug visualizations. Defaults to
diff --git a/src/three/plugins/DebugTilesPlugin.js b/src/three/plugins/DebugTilesPlugin.js
index 36b251ece..31012de8f 100644
--- a/src/three/plugins/DebugTilesPlugin.js
+++ b/src/three/plugins/DebugTilesPlugin.js
@@ -262,6 +262,7 @@ export class DebugTilesPlugin {
 		 * a black-to-white gradient. Replace with a custom function to use a different color
 		 * ramp.
 		 * @type {GetDebugColorCallback}
+		 * @default ( value, target ) => target.setRGB( value, value, value )
 		 */
 		this.getDebugColor = ( value, target ) => {
 
diff --git a/src/three/renderer/API.md b/src/three/renderer/API.md
index 8045c311d..f14388094 100644
--- a/src/three/renderer/API.md
+++ b/src/three/renderer/API.md
@@ -107,25 +107,25 @@ animation. Use `toggle()` to animate the transition.
 ### .orthographicPositionalZoom
 
 ```js
-orthographicPositionalZoom: boolean
+orthographicPositionalZoom: boolean = true
 ```
 
-When true, the orthographic camera position is offset backwards along the view direction so it does not clip into terrain. Default is true.
+When true, the orthographic camera position is offset backwards along the view direction so it does not clip into terrain.
 
 
 ### .orthographicOffset
 
 ```js
-orthographicOffset: number
+orthographicOffset: number = 50
 ```
 
-Distance the orthographic camera is pushed back when `orthographicPositionalZoom` is true. Default is 50.
+Distance the orthographic camera is pushed back when `orthographicPositionalZoom` is true.
 
 
 ### .fixedPoint
 
 ```js
-fixedPoint: Vector3
+fixedPoint: Vector3 = new Vector3()
 ```
 
 World-space point that remains visually fixed during the transition.
@@ -134,28 +134,28 @@ World-space point that remains visually fixed during the transition.
 ### .duration
 
 ```js
-duration: number
+duration: number = 200
 ```
 
-Duration of the animated transition in milliseconds. Default is 200.
+Duration of the animated transition in milliseconds.
 
 
 ### .autoSync
 
 ```js
-autoSync: boolean
+autoSync: boolean = true
 ```
 
-When true, cameras are synced automatically before each `update` call. Default is true.
+When true, cameras are synced automatically before each `update` call.
 
 
 ### .easeFunction
 
 ```js
-easeFunction: function
+easeFunction: function = x => x
 ```
 
-Easing function applied to the raw transition alpha. Receives and returns a value in [0, 1]. Default is the identity function.
+Easing function applied to the raw transition alpha. Receives and returns a value in [0, 1].
 
 
 ### .constructor
@@ -467,7 +467,7 @@ right-click-to-rotate, and optional damping/inertia. Works with any Three.js sce
 ### .enabled
 
 ```js
-enabled: boolean
+enabled: boolean = true
 ```
 
 Whether the controls are active. When set to false, all input is ignored
@@ -477,157 +477,157 @@ and inertia is cleared.
 ### .cameraRadius
 
 ```js
-cameraRadius: number
+cameraRadius: number = 5
 ```
 
-Minimum camera distance above the surface in world units. Prevents clipping into terrain. Default is 5.
+Minimum camera distance above the surface in world units. Prevents clipping into terrain.
 
 
 ### .rotationSpeed
 
 ```js
-rotationSpeed: number
+rotationSpeed: number = 1
 ```
 
-Rotation sensitivity multiplier. Default is 1.
+Rotation sensitivity multiplier.
 
 
 ### .minAltitude
 
 ```js
-minAltitude: number
+minAltitude: number = 0
 ```
 
-Minimum camera angle above the horizon in radians. Default is 0.
+Minimum camera angle above the horizon in radians.
 
 
 ### .maxAltitude
 
 ```js
-maxAltitude: number
+maxAltitude: number = 0.45 * Math.PI
 ```
 
-Maximum camera angle above the horizon in radians. Default is 0.45π.
+Maximum camera angle above the horizon in radians.
 
 
 ### .minDistance
 
 ```js
-minDistance: number
+minDistance: number = 10
 ```
 
-Minimum zoom distance in world units. Default is 10.
+Minimum zoom distance in world units.
 
 
 ### .maxDistance
 
 ```js
-maxDistance: number
+maxDistance: number = Infinity
 ```
 
-Maximum zoom distance in world units. Default is Infinity.
+Maximum zoom distance in world units.
 
 
 ### .minZoom
 
 ```js
-minZoom: number
+minZoom: number = 0
 ```
 
-Minimum orthographic zoom level. Default is 0.
+Minimum orthographic zoom level.
 
 
 ### .maxZoom
 
 ```js
-maxZoom: number
+maxZoom: number = Infinity
 ```
 
-Maximum orthographic zoom level. Default is Infinity.
+Maximum orthographic zoom level.
 
 
 ### .zoomSpeed
 
 ```js
-zoomSpeed: number
+zoomSpeed: number = 1
 ```
 
-Zoom sensitivity multiplier. Default is 1.
+Zoom sensitivity multiplier.
 
 
 ### .adjustHeight
 
 ```js
-adjustHeight: boolean
+adjustHeight: boolean = true
 ```
 
-When true, the camera height is automatically adjusted to avoid clipping into the terrain. Default is true.
+When true, the camera height is automatically adjusted to avoid clipping into the terrain.
 
 
 ### .enableDamping
 
 ```js
-enableDamping: boolean
+enableDamping: boolean = false
 ```
 
-When true, camera movements decelerate gradually after input ends. Default is false.
+When true, camera movements decelerate gradually after input ends.
 
 
 ### .dampingFactor
 
 ```js
-dampingFactor: number
+dampingFactor: number = 0.15
 ```
 
-Rate of inertia decay per frame when damping is enabled. Lower values produce longer coasting. Default is 0.15.
+Rate of inertia decay per frame when damping is enabled. Lower values produce longer coasting.
 
 
 ### .fallbackPlane
 
 ```js
-fallbackPlane: Plane
+fallbackPlane: Plane = new Plane( UP, 0 )
 ```
 
-Fallback plane used for drag/zoom when no scene geometry is hit. Default is the XZ plane (y=0).
+Fallback plane used for drag/zoom when no scene geometry is hit.
 
 
 ### .useFallbackPlane
 
 ```js
-useFallbackPlane: boolean
+useFallbackPlane: boolean = true
 ```
 
-When true, the fallback plane is used when raycasting misses scene geometry. Default is true.
+When true, the fallback plane is used when raycasting misses scene geometry.
 
 
 ### .enableFlight
 
 ```js
-enableFlight: boolean
+enableFlight: boolean = false
 ```
 
 When true, enables keyboard flight: W/A/S/D and arrow keys move forward/back/strafe, Q/E move
 up/down, and Shift multiplies speed by `flightSpeedMultiplier`. Right-click or Shift+left-click
 enters free-look mode, rotating the camera in place without requiring a surface hit. Only
-supported for perspective cameras. Default is false.
+supported for perspective cameras.
 
 
 ### .flightSpeed
 
 ```js
-flightSpeed: number
+flightSpeed: number = 10
 ```
 
-Base camera speed in world units per second during keyboard flight. Default is 10.
+Base camera speed in world units per second during keyboard flight.
 
 
 ### .flightSpeedMultiplier
 
 ```js
-flightSpeedMultiplier: number
+flightSpeedMultiplier: number = 4
 ```
 
-Speed multiplier applied when the fast key is held during flight. Default is 4.
+Speed multiplier applied when the fast key is held during flight.
 
 
 ### .constructor
@@ -775,25 +775,25 @@ The inverse of `ellipsoidFrame`.
 ### .nearMargin
 
 ```js
-nearMargin: number
+nearMargin: number = 0.25
 ```
 
-Fraction of the near plane distance added as a buffer. Default is 0.25.
+Fraction of the near plane distance added as a buffer.
 
 
 ### .farMargin
 
 ```js
-farMargin: number
+farMargin: number = 0
 ```
 
-Fraction of the far plane distance added as a buffer. Default is 0.
+Fraction of the far plane distance added as a buffer.
 
 
 ### .globeInertia
 
 ```js
-globeInertia: Quaternion
+globeInertia: Quaternion = new Quaternion()
 ```
 
 Accumulated globe rotation inertia quaternion. Applied each frame when globe inertia is active.
@@ -802,7 +802,7 @@ Accumulated globe rotation inertia quaternion. Applied each frame when globe ine
 ### .globeInertiaFactor
 
 ```js
-globeInertiaFactor: number
+globeInertiaFactor: number = 0
 ```
 
 Magnitude of the current globe rotation inertia. Decays to zero over time.
@@ -811,16 +811,16 @@ Magnitude of the current globe rotation inertia. Decays to zero over time.
 ### .ellipsoid
 
 ```js
-ellipsoid: Ellipsoid
+ellipsoid: Ellipsoid = WGS84_ELLIPSOID
 ```
 
-The ellipsoid model used for surface interaction and up-direction calculation. Defaults to WGS84.
+The ellipsoid model used for surface interaction and up-direction calculation.
 
 
 ### .ellipsoidGroup
 
 ```js
-ellipsoidGroup: Group
+ellipsoidGroup: Group = new Group()
 ```
 
 The Three.js group whose world matrix defines the ellipsoid's coordinate frame.
@@ -926,7 +926,7 @@ Add `tiles.group` to your scene and call `tiles.update()` each frame.
 ### .autoDisableRendererCulling
 
 ```js
-autoDisableRendererCulling: boolean
+autoDisableRendererCulling: boolean = true
 ```
 
 If `true`, all tile meshes automatically have `frustumCulled` set to `false` since the
@@ -948,12 +948,11 @@ tileset frame.
 ### .ellipsoid
 
 ```js
-ellipsoid: Ellipsoid
+ellipsoid: Ellipsoid = WGS84_ELLIPSOID
 ```
 
-The ellipsoid definition used for the tileset. Defaults to WGS84 and may be
-overridden by the `3DTILES_ellipsoid` extension. Specified in the local frame of
-`TilesRenderer.group`.
+The ellipsoid definition used for the tileset. May be overridden by the
+`3DTILES_ellipsoid` extension. Specified in the local frame of `TilesRenderer.group`.
 
 
 ### .cameras
@@ -968,7 +967,7 @@ Array of cameras registered with this renderer.
 ### .manager
 
 ```js
-manager: LoadingManager
+manager: LoadingManager = new LoadingManager()
 ```
 
 The `LoadingManager` used when loading tile geometry.
diff --git a/src/three/renderer/controls/CameraTransitionManager.js b/src/three/renderer/controls/CameraTransitionManager.js
index 7e37d147c..3b526a198 100644
--- a/src/three/renderer/controls/CameraTransitionManager.js
+++ b/src/three/renderer/controls/CameraTransitionManager.js
@@ -104,38 +104,44 @@ export class CameraTransitionManager extends EventDispatcher {
 		// settings
 
 		/**
-		 * When true, the orthographic camera position is offset backwards along the view direction so it does not clip into terrain. Default is true.
+		 * When true, the orthographic camera position is offset backwards along the view direction so it does not clip into terrain.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.orthographicPositionalZoom = true;
 
 		/**
-		 * Distance the orthographic camera is pushed back when `orthographicPositionalZoom` is true. Default is 50.
+		 * Distance the orthographic camera is pushed back when `orthographicPositionalZoom` is true.
 		 * @type {number}
+		 * @default 50
 		 */
 		this.orthographicOffset = 50;
 
 		/**
 		 * World-space point that remains visually fixed during the transition.
 		 * @type {Vector3}
+		 * @default new Vector3()
 		 */
 		this.fixedPoint = new Vector3();
 
 		/**
-		 * Duration of the animated transition in milliseconds. Default is 200.
+		 * Duration of the animated transition in milliseconds.
 		 * @type {number}
+		 * @default 200
 		 */
 		this.duration = 200;
 
 		/**
-		 * When true, cameras are synced automatically before each `update` call. Default is true.
+		 * When true, cameras are synced automatically before each `update` call.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.autoSync = true;
 
 		/**
-		 * Easing function applied to the raw transition alpha. Receives and returns a value in [0, 1]. Default is the identity function.
+		 * Easing function applied to the raw transition alpha. Receives and returns a value in [0, 1].
 		 * @type {Function}
+		 * @default x => x
 		 */
 		this.easeFunction = x => x;
 
diff --git a/src/three/renderer/controls/EnvironmentControls.js b/src/three/renderer/controls/EnvironmentControls.js
index 38d2f5953..11ff11844 100644
--- a/src/three/renderer/controls/EnvironmentControls.js
+++ b/src/three/renderer/controls/EnvironmentControls.js
@@ -68,6 +68,7 @@ export class EnvironmentControls extends EventDispatcher {
 	 * Whether the controls are active. When set to false, all input is ignored
 	 * and inertia is cleared.
 	 * @type {boolean}
+	 * @default true
 	 */
 	get enabled() {
 
@@ -109,86 +110,100 @@ export class EnvironmentControls extends EventDispatcher {
 		this._enabled = true;
 
 		/**
-		 * Minimum camera distance above the surface in world units. Prevents clipping into terrain. Default is 5.
+		 * Minimum camera distance above the surface in world units. Prevents clipping into terrain.
 		 * @type {number}
+		 * @default 5
 		 */
 		this.cameraRadius = 5;
 
 		/**
-		 * Rotation sensitivity multiplier. Default is 1.
+		 * Rotation sensitivity multiplier.
 		 * @type {number}
+		 * @default 1
 		 */
 		this.rotationSpeed = 1;
 
 		/**
-		 * Minimum camera angle above the horizon in radians. Default is 0.
+		 * Minimum camera angle above the horizon in radians.
 		 * @type {number}
+		 * @default 0
 		 */
 		this.minAltitude = 0;
 
 		/**
-		 * Maximum camera angle above the horizon in radians. Default is 0.45π.
+		 * Maximum camera angle above the horizon in radians.
 		 * @type {number}
+		 * @default 0.45 * Math.PI
 		 */
 		this.maxAltitude = 0.45 * Math.PI;
 
 		/**
-		 * Minimum zoom distance in world units. Default is 10.
+		 * Minimum zoom distance in world units.
 		 * @type {number}
+		 * @default 10
 		 */
 		this.minDistance = 10;
 
 		/**
-		 * Maximum zoom distance in world units. Default is Infinity.
+		 * Maximum zoom distance in world units.
 		 * @type {number}
+		 * @default Infinity
 		 */
 		this.maxDistance = Infinity;
 
 		/**
-		 * Minimum orthographic zoom level. Default is 0.
+		 * Minimum orthographic zoom level.
 		 * @type {number}
+		 * @default 0
 		 */
 		this.minZoom = 0;
 
 		/**
-		 * Maximum orthographic zoom level. Default is Infinity.
+		 * Maximum orthographic zoom level.
 		 * @type {number}
+		 * @default Infinity
 		 */
 		this.maxZoom = Infinity;
 
 		/**
-		 * Zoom sensitivity multiplier. Default is 1.
+		 * Zoom sensitivity multiplier.
 		 * @type {number}
+		 * @default 1
 		 */
 		this.zoomSpeed = 1;
 
 		/**
-		 * When true, the camera height is automatically adjusted to avoid clipping into the terrain. Default is true.
+		 * When true, the camera height is automatically adjusted to avoid clipping into the terrain.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.adjustHeight = true;
 
 		/**
-		 * When true, camera movements decelerate gradually after input ends. Default is false.
+		 * When true, camera movements decelerate gradually after input ends.
 		 * @type {boolean}
+		 * @default false
 		 */
 		this.enableDamping = false;
 
 		/**
-		 * Rate of inertia decay per frame when damping is enabled. Lower values produce longer coasting. Default is 0.15.
+		 * Rate of inertia decay per frame when damping is enabled. Lower values produce longer coasting.
 		 * @type {number}
+		 * @default 0.15
 		 */
 		this.dampingFactor = 0.15;
 
 		/**
-		 * Fallback plane used for drag/zoom when no scene geometry is hit. Default is the XZ plane (y=0).
+		 * Fallback plane used for drag/zoom when no scene geometry is hit.
 		 * @type {Plane}
+		 * @default new Plane( UP, 0 )
 		 */
 		this.fallbackPlane = new Plane( new Vector3( 0, 1, 0 ), 0 );
 
 		/**
-		 * When true, the fallback plane is used when raycasting misses scene geometry. Default is true.
+		 * When true, the fallback plane is used when raycasting misses scene geometry.
 		 * @type {boolean}
+		 * @default true
 		 */
 		this.useFallbackPlane = true;
 
@@ -196,20 +211,23 @@ export class EnvironmentControls extends EventDispatcher {
 		 * When true, enables keyboard flight: W/A/S/D and arrow keys move forward/back/strafe, Q/E move
 		 * up/down, and Shift multiplies speed by `flightSpeedMultiplier`. Right-click or Shift+left-click
 		 * enters free-look mode, rotating the camera in place without requiring a surface hit. Only
-		 * supported for perspective cameras. Default is false.
+		 * supported for perspective cameras.
 		 * @type {boolean}
+		 * @default false
 		 */
 		this.enableFlight = false;
 
 		/**
-		 * Base camera speed in world units per second during keyboard flight. Default is 10.
+		 * Base camera speed in world units per second during keyboard flight.
 		 * @type {number}
+		 * @default 10
 		 */
 		this.flightSpeed = 10;
 
 		/**
-		 * Speed multiplier applied when the fast key is held during flight. Default is 4.
+		 * Speed multiplier applied when the fast key is held during flight.
 		 * @type {number}
+		 * @default 4
 		 */
 		this.flightSpeedMultiplier = 4;
 
diff --git a/src/three/renderer/controls/GlobeControls.js b/src/three/renderer/controls/GlobeControls.js
index 99a562463..506e7084a 100644
--- a/src/three/renderer/controls/GlobeControls.js
+++ b/src/three/renderer/controls/GlobeControls.js
@@ -85,14 +85,16 @@ export class GlobeControls extends EnvironmentControls {
 		this.maxZoom = 0.01;
 
 		/**
-		 * Fraction of the near plane distance added as a buffer. Default is 0.25.
+		 * Fraction of the near plane distance added as a buffer.
 		 * @type {number}
+		 * @default 0.25
 		 */
 		this.nearMargin = 0.25;
 
 		/**
-		 * Fraction of the far plane distance added as a buffer. Default is 0.
+		 * Fraction of the far plane distance added as a buffer.
 		 * @type {number}
+		 * @default 0
 		 */
 		this.farMargin = 0;
 		this.useFallbackPlane = false;
@@ -101,24 +103,28 @@ export class GlobeControls extends EnvironmentControls {
 		/**
 		 * Accumulated globe rotation inertia quaternion. Applied each frame when globe inertia is active.
 		 * @type {Quaternion}
+		 * @default new Quaternion()
 		 */
 		this.globeInertia = new Quaternion();
 
 		/**
 		 * Magnitude of the current globe rotation inertia. Decays to zero over time.
 		 * @type {number}
+		 * @default 0
 		 */
 		this.globeInertiaFactor = 0;
 
 		/**
-		 * The ellipsoid model used for surface interaction and up-direction calculation. Defaults to WGS84.
+		 * The ellipsoid model used for surface interaction and up-direction calculation.
 		 * @type {Ellipsoid}
+		 * @default WGS84_ELLIPSOID
 		 */
 		this.ellipsoid = WGS84_ELLIPSOID.clone();
 
 		/**
 		 * The Three.js group whose world matrix defines the ellipsoid's coordinate frame.
 		 * @type {Group}
+		 * @default new Group()
 		 */
 		this.ellipsoidGroup = new Group();
 		this._ellipsoidFrameInverse = new Matrix4();
diff --git a/src/three/renderer/tiles/TilesRenderer.js b/src/three/renderer/tiles/TilesRenderer.js
index 738578c12..e43eea0aa 100644
--- a/src/three/renderer/tiles/TilesRenderer.js
+++ b/src/three/renderer/tiles/TilesRenderer.js
@@ -57,6 +57,7 @@ export class TilesRenderer extends TilesRendererBase {
 	 * tiles renderer performs its own frustum culling. If `displayActiveTiles` is `true` or
 	 * multiple cameras are being used, consider setting this to `false`.
 	 * @type {boolean}
+	 * @default true
 	 */
 	get autoDisableRendererCulling() {
 
@@ -105,10 +106,10 @@ export class TilesRenderer extends TilesRendererBase {
 		this.group = new TilesGroup( this );
 
 		/**
-		 * The ellipsoid definition used for the tileset. Defaults to WGS84 and may be
-		 * overridden by the `3DTILES_ellipsoid` extension. Specified in the local frame of
-		 * `TilesRenderer.group`.
+		 * The ellipsoid definition used for the tileset. May be overridden by the
+		 * `3DTILES_ellipsoid` extension. Specified in the local frame of `TilesRenderer.group`.
 		 * @type {Ellipsoid}
+		 * @default WGS84_ELLIPSOID
 		 */
 		this.ellipsoid = WGS84_ELLIPSOID.clone();
 
@@ -129,6 +130,7 @@ export class TilesRenderer extends TilesRendererBase {
 		/**
 		 * The `LoadingManager` used when loading tile geometry.
 		 * @type {LoadingManager}
+		 * @default new LoadingManager()
 		 */
 		this.manager = new LoadingManager();
 
diff --git a/utils/docs/RenderDocsUtils.js b/utils/docs/RenderDocsUtils.js
index 9c8b43b27..b123de73b 100644
--- a/utils/docs/RenderDocsUtils.js
+++ b/utils/docs/RenderDocsUtils.js
@@ -265,7 +265,8 @@ export function renderMember( doc, callbackMap = {} ) {
 
 	const type = formatType( doc.type, callbackMap );
 	const readonly = doc.readonly ? 'readonly ' : '';
-	lines.push( `${ readonly }${ doc.name }: ${ type }` );
+	const defaultStr = doc.defaultvalue !== undefined ? ` = ${ doc.defaultvalue }` : '';
+	lines.push( `${ readonly }${ doc.name }: ${ type }${ defaultStr }` );
 
 	lines.push( '```' );
 	lines.push( '' );