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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Right handed and left handed? (Top image doesn't follow right hand rule, Z should point towards camera)
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(1 replies)
Right hand rule
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.
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)
Unless you're into magnetic resonance and use rotating frames:
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.
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.
If I were to make a thing where I got to decide which one is which I'd pick the 2nd.
I don't have a strong opinion and I'll just pick whatever the default is.
When using Godot, first.
When using Blender, second.
Working with robots at work x is horizontal y is depth z is vertical.
Z IS UP AND ALSO IT'S BLUE
Why would you represent Z with Y?
In a 2 dimensional graph y is vertical, adding z doesn't change that.
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I find that it depends on the context. If it's side view only it's essentially 2D in which case Y is up.
For anything where you get a proper 3D view, Z is up.