Hi,
Can you add layers?
Layer is an integer number describing rendering order of scene objects. There are situations when user really knows better in what order things should be rendered.
For example:
I want to render skybox first then set skybox.layer to 0,
then add opaque meshes into layer 1,
then transparent meshes into layer 2, and so on.

It will greatly help fixing for example a skybox which is now treated as a special case and often overwrites other meshes which is just not right.

By the way: 4.0.0 Beta is very nice. Love new examples. Awaiting cascading shadows Keep up the good job.
Greetings