diff --git a/src/animation.ts b/src/animation.ts
index 743390d..641927e 100644
--- a/src/animation.ts
+++ b/src/animation.ts
@@ -102,7 +102,7 @@ export class CompositeAnimation implements IAnimation {
 export class RootAnimation extends CompositeAnimation implements AnimationHandle {
 	speed: number = 1.0;
 	progress: number = 0.0;
-	readonly clock: Clock = new Clock(true);
+	private readonly clock: Clock = new Clock(true);
 
 	get animation(): RootAnimation {
 		return this;
diff --git a/src/model.ts b/src/model.ts
index 5431d5e..dae1db9 100644
--- a/src/model.ts
+++ b/src/model.ts
@@ -19,7 +19,6 @@ function toCapeVertices(x1: number, y1: number, x2: number, y2: number): Array<V
 }
 
 function setVertices(box: BoxGeometry, top: Array<Vector2>, bottom: Array<Vector2>, left: Array<Vector2>, front: Array<Vector2>, right: Array<Vector2>, back: Array<Vector2>): void {
-
 	box.faceVertexUvs[0] = [];
 	box.faceVertexUvs[0][0] = [right[3], right[0], right[2]];
 	box.faceVertexUvs[0][1] = [right[0], right[1], right[2]];
diff --git a/src/viewer.ts b/src/viewer.ts
index 8eb2144..ecfdebf 100644
--- a/src/viewer.ts
+++ b/src/viewer.ts
@@ -4,8 +4,11 @@ import { RootAnimation } from "./animation.js";
 import { PlayerObject } from "./model.js";
 
 export type LoadOptions = {
+	/**
+	 * Whether to make the object visible after the texture is loaded. (default: true)
+	 */
 	makeVisible?: boolean;
-};
+}
 
 function toMakeVisible(options?: LoadOptions): boolean {
 	if (options && options.makeVisible === false) {
@@ -15,7 +18,6 @@ function toMakeVisible(options?: LoadOptions): boolean {
 }
 
 class SkinViewer {
-
 	readonly scene: Scene;
 	readonly camera: PerspectiveCamera;
 	readonly renderer: WebGLRenderer;
@@ -29,8 +31,6 @@ class SkinViewer {
 
 	private _disposed: boolean = false;
 	private _renderPaused: boolean = false;
-	private _skinSet: boolean = false;
-	private _capeSet: boolean = false;
 
 	constructor(readonly domElement: Node) {
 		// texture
@@ -44,7 +44,6 @@ class SkinViewer {
 		this.capeTexture.magFilter = NearestFilter;
 		this.capeTexture.minFilter = NearestFilter;
 
-		// scene
 		this.scene = new Scene();
 
 		// Use smaller fov to avoid distortion