I have some nice space skybox textures that I want to put on a skybox and then export to use in UDK. It's easy to apply them to a box and it looks fine, but I can only have one diffuse map in UDK, so I need to get all 6 textures in the right place in one texture square. I tried rendering to texture, but this only works if the box is unwrapped and that ruins the alignment of the textures and I can't see how I will get them all properly lined up again.
I feel sure there must be some straightforward way to do this - I have the box looking right, I just need to export it - and feel a bit stupid, but I can't work it out and can't find it here or on the web.
If actually, this is really awkward, I am open to other suggestions, but I would like to use the space textures I have. I know a skydome/skysphere is what I would be using ideally, but I don't have the right texture for that.
Thanks in advance for any and all help.