Understanding Coords

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Xyle
 #1
Hello,

I was trying some things then I placed colored spheres at each edge of my 3d terrain so that I understood the coordinates. The Thing is, the results are not what I was expecting. Can someone help me understand this?

I was figuring the following would be a correct coord layout
from a camera looking down, each coord is a corner, except 0,0

(X)-100, (Z)-100----------------------------(X)100, (Z)-100
-----------------------------------------------------------
-----------------------------------------------------------
--------------------------(X)0, (Z)0-----------------------
-----------------------------------------------------------
-----------------------------------------------------------
(X)-100, (Z)100-----------------------------(X)100, (Z)100


Instead, the actual view looks like this...
(X)-100, (Z)-100----------------------------(X)-100, (Z)100
---------------------------------------------------?-------
--------------------------(X)0, (Z)0-----------------------
-----------------------------------------------------------
-----------------------------------------------------------
(X)100, (Z)-100------------------------------(X)100, (Z)100
?

The 2 question marked ones are flipped


I always figured Z was like Y in a 2d system, but instead, X is like Y.

This is really hurting my brain