By your own logic there is no “up”, only x/y/z, so what’s your complaint?
There is NO mathematical or physical reason why XY should be the floor, that is your own bias.
Pennomi
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Cake day: June 17th, 2023
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Thank god, this is the one true coordinate system
Yeah the first one is a left handed coordinate system.
The enemy’s gate defines where down is.
Eh sort of? It’s all a matter of perspective. In Blender which uses a right hand system, when you view from the side, right is positive Y, up is positive Z, and towards the user is positive X.
But looking from above, positive X is right, positive Y is up, and positive Z is towards the camera. Obviously if you rotate the camera to be viewing from the negative side of the axis some directions get flipped.
Basically if you’re axis aligned, things work out the way you would expect.
Only in a top-down perspective. Most screens are vertically oriented though, meaning the reference 2D plane is left-right-up-down.
God bless the artistic human mind that sees a bunch of rocks and wire and thinks “I bet I can make this look like booba”
More seriously, it’s a really wonderful work
By that logic the only non-arbitrary dimension is defined by gravity, so the primary axis (X) should be up and down.
Math is not rigid like you are saying: 3D coordinates can be oriented in any direction because they are fundamentally arbitrary. A lot of people a damn lot smarter than you have damn good reasons for using different coordinate systems, and they are mathematically correct.