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Move object based on mouse delta and camera view

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    Move object based on mouse delta and camera view

    I can move object in X Y or Z direction based on mouse delta (X or Y), no problem there.
    But when I
    1. rotate an object, I need to check forward vector of object and do a lot of BRANCH check in which direction is object facing to move in proper X Y or Z direction
    2. rotate a camera, again much more BRANCH check in which direction camera is facing

    Is there any simpler solution to make an object let's say only moves (with mouse) in his LOCAL +X and -X direction, regardless of camera rotation?
    Best example is Gizmo handle in Editor and you move X handle always in correct direction no matter how you rotate viewport.

    Thanks for any info.

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