The NormalToLocal method of the Transform struct converts a normal vector from world space to local space. This is useful when you need to transform a normal vector to the local coordinate system of an object, which is often necessary for physics calculations, rendering, or other transformations that require local space data.
To use the NormalToLocal method, you need to have a Transform instance. You pass a reference to a Vector3 representing the world normal that you want to convert to local space. The method returns a new Vector3 that represents the normal in local space.
// Assume 'transform' is an instance of Transform Vector3 worldNormal = new Vector3(0, 1, 0); // Example world normal Vector3 localNormal = transform.NormalToLocal(ref worldNormal); // 'localNormal' now contains the normal vector in the local space of 'transform'.