Cartesian coordinate systems android and ios
When we draw coordinates from iOS and send it to Android, it flips like in a mirror, and vice versa, we only receive coordinates from both devices and send them. the only difference is that on iOS we use OpenGL ES for drawing, since for android we only use Native Canvas and then get their coordinates.
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The V coordinate is flipped to OpenGL. You should consider this difference between OpenGL and Native Canvas. You can find more details on some related questions:
OpenGL ES has different UV coordinates?
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