Beispiel #1
0
    private float getRoll(Vec3 dir, Vec3 vel)
    {
        var d = dir.Normalized;

        d = new Vec3(d.z, 0, -d.x);
        var   v = vel.Normalized;
        float t = d.DotProduct(v);

        return(-(Mathf.HalfPI - Mathf.ACos(t)) * vel.Length / 30);
    }