'LOS' url param regressions

[pravusjif]

• Now the LOS url param behaves as a Scene Load Radius of "LOS-1", so if we have LOS=1 the Scene Load Radius will behave as being actually 0 (only load the current scene and nothing around it). There are 2 problems with the current approach:

  1. In the past, Product made us avoid letting the user set a Scene Load Radius of 0 (loading only the current scene and nothing around it), that's why the minimum Scene Load Radius in the settings panel slider is 1.
  2. When setting the Scene Load Radius to 4 (as it comes by default in the renderer) we are now actually having a Scene Load Radius of 3, so less scenes are being loaded by default or when the user takes the Scene Load Radius slider to the maximum

• Now we can't change the Scene Load Radius after entering the world using the LOS url param, this was particularily useful for debugging

• Extra: It would be great to also recognize the url param SLR (for Scene Load Radius) besides LOS