You’re right that I didn’t sufficiently consider the “was” in that sentence. Perhaps there’s something I’m missing though, because I haven’t seen anything that would suggest X is left. When I put my right hand in the position indicated in the OP, my index finger (Y) points upwards, with my thumb (X) pointing right, making an L shape. My middle finger (z) comes out towards me.
However, most of my experience with coordinate systems is with abstract, mathsy stuff, and I don’t have much experience with any of these softwares; there may be something obvious that I’m missing.
You are wrong, @[email protected] was correct:
Source: https://forums.unrealengine.com/t/we-re-moving-to-the-left-up-forward-luf-coordinate-system/2540901
I don’t think that’s right. The post that you linked to includes this link, which includes this snippet:
I don’t follow why that means I’m wrong.
“Was” here refers to their old Z-Up, left-handed coordinates, where X was forward, Y was right, and Z was up.
You’re right that I didn’t sufficiently consider the “was” in that sentence. Perhaps there’s something I’m missing though, because I haven’t seen anything that would suggest X is left. When I put my right hand in the position indicated in the OP, my index finger (Y) points upwards, with my thumb (X) pointing right, making an L shape. My middle finger (z) comes out towards me.
However, most of my experience with coordinate systems is with abstract, mathsy stuff, and I don’t have much experience with any of these softwares; there may be something obvious that I’m missing.
You can spin your hand 180° around Y (index / up). Then Z (middle) points away from you, “forward”. And X (thumb) will point left.
Thus the “Left-Up-Forward” + Right-handed.