Depth Texture

[DrAklinger]

Hello all,
first of, great engine! So far, I have a lot of fun using it and it seems already to be in a quite powerful state :)

So, here goes my question: Is it currently possible to use a depth texture with a TextureAtlas? What I want to do is that I have a sprite of a building in game which shall consist out of multiple parts (each their own image). To z (depth) order them on a pixel-base, I want to use a depth texture.

I already followed one of the shader examples and got it to work with a custom material (aka some .wsgl shader) but it doesn't seem that TextureAtlases support custom materials. In the attachment you can see the result (some frame + a roll which shall then move up/down).

Has anybody some insight on how this could already be done or if this is some open feature?

Cheers,
Aklinger