Skybox Layers

Hello,
I'm looking for a solution to have a multi layered painted skybox with moving clouds, glowing stars, etc...

I've seen some sky solutions on the asset store but I need the control to have custom painted layers, I'm hoping to get pointed in the right direction.

I'm thinking the solution may be to use the standard cube mapped skybox as the back layer for lighting/reflections, then create some 3d objects with a shader that does not write to Z (so they always appear behind everything, just above the skybox)

Sound sensical?

Thanks!

 

Yes, it does. With one remark: it should not only not write to Z, but also be rendered before everything(or make sure ZTest always fails on it as in theory object can be placed outside of your 3D object box or make sure no object ever gets placed outside of it, but that's harder to do). If you need to 'paint' on skybox that's the only way that'll give you enough performance to do it realtime.

 

Thanks for the info!
From what your saying I'm guessing my key tags are:
ZWrite Off //so It does not write to z
Cull Front //so the inside of the object is rasterized
Tags { "Queue" = "Background" } //so this pass happens before other objects are rendered.