The "2D Skybox" texture

stevethepocket · 03-08-2012, 09:52 PM

...is showing my 3D skybox.

Am I doing it wrong, or something?

Fr0Z3n · 03-08-2012, 09:59 PM

Can you explain a bit more about what is going on?

stevethepocket · 03-09-2012, 12:05 AM

I have a 3D skybox with stuff in it. I have a skylight with a tools/toolsskybox2d. If I look at said skylight in-game, I can see the stuff I placed in the 3D skybox. I was under the impression that that was contrary to the purpose of that texture.

LeSwordfish · 03-09-2012, 05:11 AM

I think 2D and 3D skybox textures can't be used in the same Veiw...thingy. I forget the technical term, but basically you have to never be able to see them both at the same time, in vvis terms. Same as with two levels of water: it's only possible if you can't see both at once.

EDIT: PVS https://developer.valvesoftware.com/wiki/PVS

grazr · 03-09-2012, 05:57 AM

You can see 2 levels of water in any one area, they just can't both be expensive materials.

Aly · 03-09-2012, 06:05 AM

Are you sure about that? I'm quite sure I've done it in the past. Although, that would explain the funny natur eof it.

stevethepocket · 03-09-2012, 10:55 PM

By gum, you're right. I found the page in the developer wiki on tool textures, and that's what it said.

Although I swear some of my 2D skybox textures are nowhere near my regular ones. Am to assume the problem chains, as in a 2D skybox texture can't be in the same PVS as another 2D skybox texture that was in the same PVS as a regular one, either?

henke37 · 03-10-2012, 08:51 AM

I think the engine just doesn't consider the stuff in the 3d skybox visible when looking thru a 2d skybox brush. But the stuff will still draw if another brush says that the 3d skybox is visible. The engine either sees the 3d skybox or it does not.