use transform method rotated()

Question

why this doesn't work?

if event is InputEventMouseMotion:
  transform.rotated(Vector3(1.0, 0.0, 0.0), deg2rad(event.relative.y * 0.1))

Answer 1

So the method rotated for Transform returns a new Transform with the appropriate rotation. To make use of that returned value, you would want to put the following into your code:

transform = transform.rotated(Vector3(1.0, 0.0, 0.0), deg2rad(event.relative.y * 0.1))