In this forum you can easily get banned when you request new engine features. You better stick to Quakespasm or leave. 

so how is it up there on that cross 

But anyway, @Maxi... are you talking about the kind of thing where a view from inside actual box of geometry somewhere in the level gets projected into the skybox?

It's a neat trick, and I wouldn't be entirely surprised if it's already been implemented by FTE or DarkPlaces or something.

I'm not entirely sure what the best use for it in a typical Quake environment would be. I can think of a few things, but what sorts of possibilities did you have in mind? 

Get a fucking grip and post under whatever name you did previously.

Maxi, not sure how useful it would be to be honest. 

@Fredo Sorry, I didn't know that. As I said, I'm new into old-school gamimg communities, so I don't know all the rules yet. That actually was one of the reasons why I decided to post this - to understand what changes in engine are considered acceptable and what is generally frowned upon in mapping community, even if it's technically possible.

I know the phrase "When in Rome, do as the Romans do", so I tried to ask politely, but it is always dilemma for a new guy - how to throw an idea so it will not sound rude, like some unknown guy giving unasked advices to already enstablished group or community. So, I didn't mean to sound disrespectful. 

@Johnny Law, I hope I'm not continuing to break the rules by answering that, please don't ban me ;)

I imagined something like level at the top of some massive palace, or inside huge cave, or LotR-style underground halls. May be even some small ancient village/town as a view from the windows of some tall building, or even some massive spaceship or space station for sci-fi styled map, but this is possibly too-much.

But even something simple like desert or sea to the horizon, or some brush hills/rocks/mountains at the distance may also look interesting.
But it would possibly look too out of place in Quake, I'm not sure... 

No you are not being disrespectful or anything. You asked a perfectly valid suggestion / question. The Fredo-anon is just trolling and whining. 

Oh, ok. Anyway, this is pretty random idea, but I tried to google it - unsuccessfully, so I decided to start this thread myself. 

Also I know nothing about 3d graphics programming, so not sure - how realistically lighting would look, especially at the border between real and projected geometry. Also, is it possible to make textures not to be 10-times stretched, without huge perfomance drop?