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    World Units

    World Grid

    Flax uses centimeters as a unit of length and kilograms as a unit of weight. These world units are used by the physics and rendering engines. You should stick to using realistic values in order to create solid visual and physical behaviour of the objects.

    Coordinate system

    Flax uses left-handed coordinate system. Where each axis points:

    • X axis - right direction
    • Y axis - up direction
    • Z axis - forward direction

    Math library

    Flax uses row-major matrices and row vectors. Hovewer Flax tries to use Transform structure as much as possible when it comes to objects trasformation representation as it is easier to work with and has better precision in some cases. Transformation order is always: Scale -> Rotate -> Translate (TRS style). Euler angles are stored in order: pitch - yaw - roll (x, y, z).

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