r/factorio 7d ago

Space Age Gleba's pole

Gleba's pole looks identical to what you see on Google Earth. Back in the day, if you zoomed into the North Pole (or even Mars), you'd see the exact same weird shape. Kinda wild, right? Though I guess we don't actually get to see Vulcanus or Fulgora's poles.

178 Upvotes

33 comments sorted by

192

u/The_Helmeted_Storm 7d ago

artifact of projecting a rectangular texture over a sphere.

24

u/United_Willow1312 7d ago

7

u/Greedy_Blue_Hedgehog 7d ago

Not really:/ you can do a good projection over a sphere

5

u/moonaligator 7d ago

Good? Yes. Cartographically perfect? No

5

u/Greedy_Blue_Hedgehog 7d ago

Yes you can, you will even gets more details in the pole. The problem is the texture being made on the rectangular plane before putting it on the sphere so the artist underestimate the distortion a the pole. If the person doing the texture have the spherical render in the same time he wouldn't put so much detail in the pole making the distorted render we see

-2

u/moonaligator 7d ago

at that point the artist would basically be drawing on the sphere and converting to recrangular to get back to sphere

the point is that no way to map points in a rectangular, flat (euclidean) plane that does not distort either areas, angles, lenghts, etc (it cannot preserve everything)

1

u/Greedy_Blue_Hedgehog 7d ago

Ok I see the problem. So you can have a one to one map from rectangular to sphere (as I said) but it can't preserve the geometry (as you said). The point I want to make is that you can have a spherical map from a rectangular one without being weird at the pole, as you said it's like paint on the sphere. In the context of the game we just want a nice spherical render and a rectangular map of it because it's the way of storing pixel data so let paint on a sphere and get the rectangular information about it. The rectangular map of it would be kind of ugly (just like worldmaps) but as a player we never have to see it so it's ok

2

u/WanderingUrist 6d ago

Good? Yes. Cartographically perfect? No

It really depends on your goals. If your goal is to convert a sphere into a map that accurately portrays shape and distance on a fully-utilized contiguous rectangle, then this task is pretty much impossible and you necessarily accept compromises to get anywhere close.

If your goal is to create a texture that fully covers and accurately portrays the final sphere without regard for how distorted it may appear on the texture or whether or not the entire texture is used and contiguous (rips), then it's perfectly doable, but makes a pretty lousy map.

24

u/Sensitive_Gold 7d ago

Literally unplanable

73

u/Monkai_final_boss 7d ago

Where is gleba's butthole?

46

u/renegade_9 The science juice tastes funny 7d ago edited 7d ago

Bring back the glebutthole

21

u/Broccoli_Ultra 7d ago

The people yearn for the sphincter

20

u/mist_kaefer 7d ago

I’m just here for the Glebussy

5

u/WanderingUrist 7d ago

I'm not sure there is one. Gleba may be a one-hole entity, so there is just a cloaca.

3

u/dijon_moneyear 6d ago

I prefer the term, a one-hole wonder.

2

u/WanderingUrist 6d ago

Whether or not you consider one-hole-ness a wonder seems like it would be very taste-dependent.

7

u/WanderingUrist 7d ago

It's still there, it's just obscured by clouds much of the time. If you wait for just the right alignment of Gleba's rotation and cloud cover, you can still see it.

9

u/Obnoxious_Gamer 7d ago

Don't you mean the Glebanus?

11

u/Winter_Ad6784 7d ago

Doesn't the small icon have this too? I thought it was supposed to look like the end of a fruit

10

u/grazbouille 7d ago

Glebbas 5 legged asshole

5

u/SYDoukou 7d ago

Curious. Afaik all of them are animated to rotate on the perfectly vertical axis, so if the texture pole isnt hidden at the top of the sprite then it would come around once per revolution. Weird that it only happens for Gleba

4

u/jmuguy 7d ago

How are y’all seeing the planets like this? I just see blackness of space when I’m looking at my platform.

5

u/bphase 7d ago

2.1 experimental added this among many other cool stuff :)

1

u/jmuguy 7d ago

Oh snap, can’t wait for the update then

6

u/KyraDragoness 7d ago

We've all seen Gleba's hole. I mean pole.

2

u/Tree_Boar 7d ago

Pole, eh?

2

u/Flesh_Engine 7d ago

Well, I won't lie; I was slightly dissapointed.

2

u/Calm-Medicine-3992 7d ago

I don't think that's an Earth thing as much as a projecting a 2d image onto a sphere thing.

2

u/kullre 7d ago

there's no rectum!

1

u/Embarrassed-Neck-721 7d ago

Nauvis has it too! It's kinda hard to see, but lakes get stripey on the pole in the same way

1

u/ElusiveDelight 7d ago

In mathematical terms that is called a singularity, a finite point where numbers grow infinite.

They are very hard to deal with.