hello. What coordinate system does three.js use? While checking the location of the collision, I noticed something strange. The y-axis shouldn’t always change, but it keeps changing. Please check my source. ask01.html (4.4 KB)

I found the problem. I put -90 in the x value to rotate the earth-plane rotation. However, looking at the manual today, I was instructed to substitute the radian value. I substitute -0.5*Math.PI for the x value. The earth-plane rotated exactly, and the value of the collision point caused by mous…

Coordinate system

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hofk July 24, 2021, 12:57pm 2

see e.g. Transformations and Coordinate Systems | Discover three.js

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Modify default coordinate system to engineering style (Z axis UP)

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Coordinate system

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