I imagined the same thing for a game based on Escher's drawings. Hipnotic and AD do rotations. Would it be possible to rotate an entire map? That would probably be a mapping nightmare.

While not being rotation per se, Cube had the possibility of shifting gravitational direction so you could walk on walls and ceilings to a similar effect. 

Funny that you mentioned Portal because I remember playing a puzzle game (not first person, though) on the PS1, I think, where you had to escape a series of cubic rooms which you needed to rotate to reach the exit. The name eludes me. 

Of course the best implementation would be to "fake" it by simply rotating gravity and camera orientation - the level would actually be (mostly) static - no need to make it literally rotate.

Dynamic entities in the level would need to react to the shifting gravity though - that's where all the work would go. 

1. Just replay Prey.
2. Not only vertical; it needs to rotate freely around all axes. 

Not sure if you're implying I was only talking about vertical because I wasn't - the gravity vector can be any orientation. 

I can see this being an aesthetic but not a functioning mechanic. His art works because it's a fixed perspective in which he manipulates the perception of depth. In a 3d game you have a variable perspective and actual depth. I remember seeing a 2d escher game on steam that looked pretty nifty. 

Just replay Prey.

Best use of "topsy-turvy" for a fps in my opinion. 

Monument Valley 

simply rotating gravity
Quake supports this?

I can see this being an aesthetic but not a functioning mechanic. His art works because it's a fixed perspective in which he manipulates the perception of depth.
Yeah, I should have mentioned this idea was mostly inspired by his maze-of-staircases stuff. I realize that his optical illusions would be harder if not impossible to pull off. 

We're not talking about a Quake mod. 

 

Makes me think of an old map from "the jedi returns". There was this spacecrft that hung diagonally, where the player hangs downunder.
A strange experience, for all elevators work arcangle. 

Serious Sam supports it.

But not the HD remake, AFAIK. 

Nope, HD takes away the awesome gravity stuff...was a large disappoint for me. 

Rotating Kinn and changing his gravity. 

 

Just replay Prey.
I've installed it for the very first time today. Looks cool but... you can't run? 

Just wait till you get to the immortality part - you can't lose either. 

I created hc2 a couple days ago and this is the beginning part of it with some ceiling detail. Map still in development.

Screenshot download: http://www.quaketastic.com/files/hc2withceiling.jpg 

Cool man hexcalk, this is how you do it! Displaying WIPs and collecting feedback.

Looks like some spiky ceilings, a medieval map in the works? Keep it up! 

Well, I definately don't remember seeing that kind of ceiling before, eager to see more of it* 

Peripheral was HC0. 

This level that I recently took a screenshot of was named "hc2" because a map titled "hc1" was created prior to the release of Peripheral. Both are still in development. hc2 is generally E1M2 influenced, while hc1 will have Japanese themes and textures from Daikatana.