diff --git a/app/src/lib/types/mathutils.d.ts b/app/src/lib/types/mathutils.d.ts
new file mode 100644
index 0000000..ac1fb63
--- /dev/null
+++ b/app/src/lib/types/mathutils.d.ts
@@ -0,0 +1,17 @@
+declare module 'three/src/math/MathUtils' {
+	export function generateUUID(): string;
+	export function clamp(value: number, min: number, max: number): number;
+	export function euclideanModulo(n: number, m: number): number;
+	export function mapLinear(x: number, a1: number, a2: number, b1: number, b2: number): number;
+	export function lerp(x: number, y: number, t: number): number;
+	export function smoothstep(x: number, min: number, max: number): number;
+	export function smootherstep(x: number, min: number, max: number): number;
+	export function randInt(low: number, high: number): number;
+	export function randFloat(low: number, high: number): number;
+	export function randFloatSpread(range: number): number;
+	export function degToRad(degrees: number): number;
+	export function radToDeg(radians: number): number;
+	export function isPowerOfTwo(value: number): boolean;
+	export function ceilPowerOfTwo(value: number): number;
+	export function floorPowerOfTwo(value: number): number;
+}