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Annoying Hallway

First crack at this - mostly to test the waters. If there's an appetite, I'll do more. My buddy loves puzzle games - I do too but I love creating game assets more. No idea if this is what the devs had in mind for user creation - but it was the first thing I thought of.

The idea was to create an environment item - something that could be tiled to give players something else wall-wise to look at besides the prefab stuff available in the editor. It's a very simple model - triangles came in at just under 300. Textures should be 512x1024. It's all my stuff - Blender for the mesh, Substance for the textures.

(Caution - this asset may appear kinda dark in-game. I'm still trying to figure out material/shader things here. I'll forgive you if you don't keep it in your subscriptions. But keep an eye out, I'll figure it out. - we're still pretty early on in things here.

SO - open technical stuff for anyone who has any thoughts to share.

I tried a number of formats for upload, among those that are supported.

I'm using Blender 2.8(9) - the object is hooked up to a principled BSDF shader material. Strikes me that metal/rough should be the way to go - but I got varying results with different formats. If any of you(se) knows the way to get some of these texture types to do what they should, lemme know. Here's what I tried:

OBJ worked on first blush, just colours - but no normal mapping, or anything else.

FBX worked, colour and normals, (this model is an FBX export) - but it was kinda dark in game, as this asset might be. Most FBX exports with PBR textures - roughness for instance - turned everything black.

GLTF/.glb appeared to respect pretty much everything (opacity/emissive/normal/roughness, etc) and looks great. But I was not able to save the item to a collection or upload it to the workshop with this format. :( I could only mess around with them in the editor.

Edit: I tried exporting fbx from Clara.io - not with this particular asset, but later. Since Autodesk is Autodesk and has this stupid ... thing with anything not Autodesk I figured I'd try an intermediary exporter. Some positive results - I was able to get albedo/roughness/emissive/normal in an fbx export there. Could not get opacity, metallic or any of the finer textures, like subsurf scattering (not like that's necessary, but..)

Either way, stuff above notwithstanding, the devs did mention that assets for Superliminal should be "game-ready". And that's good advice. Keep an eye on file size as you download this stuff, mine or anyone else's. I downloaded a nice looking asset the other day that was 230k tris : ( . Your PC, your choice - but I humbly suggest everyone keep an eye out for big downloads on Workshop items. Simple stuff should be in the 1-5 mb range.

Request to the Devs!
Scale! God, I know that's a dicey one being the game that it is. I can't seem to re-set scale for an object I've created - in the editor, I mean. I built this thing here using what I believe to be real-world scale - bounding's probably 3x3x3m. Can we have that? and a set of standards for 3D scale? Or can we, at least, re-set to what the object was built at?

Last words
It's pretty early on, so I'm just happy to mess around with a new game that has this functionality. If you find this thing I did useful, say so. If you have ideas to improve on it, also say so. I'm a Cities:Skylines modder and I have a few obligations there, which I've been dodging a bit... So, uh, I might not get back to you immediately. : )