better zoomExtents with pivot

libs/ff-three/source/CameraController.ts

@@ -191,18 +191,31 @@ export default class CameraController implements IManip
             return;
         }
 
+
+        // _vec3a.copy(this.orbit).multiplyScalar(math.DEG2RAD);
+        // _eua.setFromVector3(_vec3a, "YXZ");
+        // _quat.setFromEuler(_eua);
+        // //Position, relative to pivot point
+        // _vec3b.copy(this.offset).applyEuler(_eua).add(this.pivot);
+        // //Keep scale
+        // _vec3c.setFromMatrixScale(object.matrix);
+        // //Compose everything
+        // object.matrix.compose(_vec3b, _quat,  _vec3c);
+
+
         // rotate box to camera space
         _vec3a.copy(this.orbit).multiplyScalar(math.DEG2RAD);
         _quat.setFromEuler(_eua.setFromVector3(_vec3a));
         _vec3b.setScalar(0);
         _vec3c.setScalar(1);
-        //Ignore the pivot point for now
+        //Ignore the pivot point for now. Rotate the box into camera space
         _mat4.compose(_vec3b, _quat, _vec3c);
-
         _box3.copy(box).applyMatrix4(_mat4.transpose());
         _box3.getSize(_vec3a);
         _box3.getCenter(_vec3b);
-        _vec3b.sub(this.pivot);
+
+        _vec3c.copy(this.pivot).applyMatrix4(_mat4);
+        _vec3b.sub(_vec3c);
 
         offset.x = _vec3b.x;
         offset.y = _vec3b.y;