diff --git a/src/Rotation.ts b/src/Rotation.ts
index 42fb12fe..ee939b89 100644
--- a/src/Rotation.ts
+++ b/src/Rotation.ts
@@ -6,6 +6,10 @@ export class Rotation extends Euler {
     return new Rotation(MathUtils.degToRad(a), MathUtils.degToRad(b), MathUtils.degToRad(g), 'XYZ')
   }
 
+  static fromThreeJsEuler(euler: Euler) {
+    return new Rotation(euler.x, euler.y, euler.z)
+  }
+
   reorder(newOrder: EulerOrder) {
     const { x, y, z } = super.reorder(newOrder)
 
diff --git a/src/Vector3.ts b/src/Vector3.ts
index 16584081..a6290507 100644
--- a/src/Vector3.ts
+++ b/src/Vector3.ts
@@ -11,6 +11,10 @@ export class Vector3 extends ThreeJsVector3 {
     return new Vector3(parseFloat(x) || 0, parseFloat(y) || 0, parseFloat(z) || 0)
   }
 
+  static fromThreeJsVector3(vector: ThreeJsVector3) {
+    return new Vector3(vector.x, vector.y, vector.z)
+  }
+
   toArxVector3(): ArxVector3 {
     return { x: this.x, y: this.y, z: this.z }
   }