private void SyncLight()
{
var v = Renderer.Light;
_lightθ = v.Y.Acos();
_lightφ = v.X == 0f && v.Z == 0f ? 0f : MathF.AngleFromXY(v.X, v.Z);
OnPropertyChanged(nameof(LightθDeg));
OnPropertyChanged(nameof(LightφDeg));
}
protected override void LookAtOverride(Vector3 pos, Vector3 target, Vector3 up)
{
Target = target;
Position = pos;
var delta = target - pos;
Radius = delta.Length();
Look = Vector3.Normalize(delta);
Alpha = MathF.AngleFromXY(-Look.X, -Look.Z);
Beta = (-Look.Y).Asin();
}
