How to create a skybox? (and when I say "create", I mean CREATE)

Heyo.

I don’t know if this was asked before, the only questions I’ve seen that look like this are the ones that ask how to put them into Unity (assembling the top, right, left, etc textures to make a skybox)

But that is not what I am looking for. Are there any programs to ACTUALLY CREATE skyboxes? (preferably free)

The only one i’ve heard so far was Spacescape. Which is pretty good.

Also, I am working solo, I am lazy, I want to save time and I want to spend my time making my game more than making skyboxes, so I am looking for generators rather than anything else (hence why I am trying to keep as far away from Blender as possible).

So… any ideas?

You could do what I do and just render your backdrop, although it is much more resource intensive it allows you to fly through it and is much easier to generate.

I make everything that is backdrop part of a separate layer which doesn’t interact with any other layers. I then create a second camera, place it at the origin and set it to view only the backdrop layer. I set the main camera to draw on top of the backdrop one (change depth settings and clear flags) and make a little script to constantly rotate it to the same angle as the main camera.

I think it looks pretty cool.