X across, Y to the sky, Z towards me
Everything else is wrong fight me
this post was submitted on 01 Dec 2025
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x in red and z in blue please..., this is difficult to look at. My conventions !
Right handed and left handed? (Top image doesn't follow right hand rule, Z should point towards camera)
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(1 replies)
I've never heard of Y pointing up. Z is always up. Unless you're talking about lathes, where Z points to the right and X points up. Whoever came up with that, I hope his frying in hell.
I’ve never heard of Y pointing up.
Screen coordinates work like this because they are 2D. X for horizontal, Y for vertical.
Oh, you need to sort your 2D graphics to figure out how to handle overlaps? Z it is!
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(2 replies)
Basically: Platformer vs Top-Down, which would you choose if you were forced to make/play a game 2D only
Top is also Visual Novel
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(2 replies)
No, just no. x is the variable for depth, y is the variable for width, and z is height. I learned that from multivariable calculus, no other convention is better.
Fuck you for showing me this, I'm now going to gauge my eyes out.
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(4 replies)
Right hand rule
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.
When using Godot, first.
When using Blender, second.
Working with robots at work x is horizontal y is depth z is vertical.
Technically, there's a lot more options. Any axis can have any name. The reason why these two main systems exist is because of 2D coordinates.
A 2D coordinate system can either be viewed top-down (piece of paper on a table) or from the front (pixels on a screen). So while X stays the same in both of these options (and thus isn't contested in 3D coordinates), Y is either up (on a screen) or ahead (on paper), and Z then gets whatever axis is left over.
I have nothing against y pointing up, but I loathe the fact that left-handed coordinate systems are somehow considered an ok choice. This is probably the strongest I feel about something so inconsequential but I'll die on that hill.
Z IS UP AND ALSO IT'S BLUE
Why would you represent Z with Y?
I hate this so much in the 3d printing world. I want it to graph from the angle I'm watching it, not from the angle the nozzle is.
The upper system is left-handed, no way anything uses that. I’ve seen the same with the Z flipped in some video games and it’s not that bad
Am i weird for using Y down right chiral on all my projects?
minecraft taught me english and it damn well taught me the correct 3D axes as well
No wonder Unreal Engine 5 is so slow. Its Z buffer is just a bunch of lines.