containsPoint method
Returns true if the given point is inside this OBB.
Implementation
bool containsPoint(Vector3 point ) {
_v1.subVectors( point, center );
rotation.extractBasis( _xAxis, _yAxis, _zAxis );
// project v1 onto each axis and check if these points lie inside the OBB
return _v1.dot( _xAxis ).abs() <= halfSizes.x &&
_v1.dot( _yAxis ).abs() <= halfSizes.y &&
_v1.dot( _zAxis ).abs() <= halfSizes.z;
}