Yeah... As a Blender 3D artist, Z axis has been baked into my brain as the up/down axis.
this post was submitted on 01 Dec 2025
555 points (98.4% liked)
memes
18251 readers
2912 users here now
Community rules
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads/AI Slop
No advertisements or spam. This is an instance rule and the only way to live. We also consider AI slop to be spam in this community and is subject to removal.
A collection of some classic Lemmy memes for your enjoyment
Sister communities
- !tenforward@lemmy.world : Star Trek memes, chat and shitposts
- !lemmyshitpost@lemmy.world : Lemmy Shitposts, anything and everything goes.
- !linuxmemes@lemmy.world : Linux themed memes
- !comicstrips@lemmy.world : for those who love comic stories.
founded 2 years ago
MODERATORS
In 2D Y is up, in 3D Z is up.
X is always redπ€·ββοΈ
Iβm from a computer graphics background.
Y is down. z is depth. Fight me.
Z is always depth. Both are correct but define different perspectives. Top is looking across the landscape from an arbitrary floating perspective, bottom is looking down with anchored mapping to the surface.
load more comments
(4 replies)
Z IS UP AND ALSO IT'S BLUE
Why would you represent Z with Y?
In a 2D game Y is up. Going from 2D to 3D would make sense to add another dimension forward to account for depth.
However if you start with a map of a 3D surface then North is Y and East is X you'd add Z to account for elevation like everybody making maps would.
I guess it depends on how you look at it.
In my brain Z is Up, Z is Height. In my job I have to deal with both all the time which is quite annoying.
load more comments
(1 replies)
Don't forget the handedness of each coordinate system!
uff. this is very hard.
I am the latter, because if I draw a X-Y plane and lay it on the ground, it aligns with that XYZ reference frame.
<i,j,k> vector master race.
This reminds me of the time when I was in an industry robotics, there were a right hand rule where Z was your thumb up and X and Y your index and middle fingers. So I think the second one is the right, but it should have been drawn other way round.
There are clearly more than two. In the top image that z-axis is pointing in the wrong direction.
load more comments
(5 replies)
x in red and z in blue please..., this is difficult to look at. My conventions !
Can't we fix this by using a,b,c coordinates? \s
I'm the bottom person. X and Y need to be on the same plane.
Technically, regardless of dimensions, x and y always make/share a plane.
But I agree with you, I always imagine Z as jutting out from the plane x and y make.
load more comments
(1 replies)