Luxar Viewer API Documentation - v2026.9.22
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    Variable FILL_TARGET_MINConst

    FILL_TARGET_MIN: 0.3

    Floor for a suggested fillTarget. Below roughly a third of the frame the subject stops reading as a hero shot at all, so no suggestion is made that would land under it: at that point the framing is not the problem (the subject probably has a detached far-flung fragment) and a human has to look. Without this the message would emit a no-op ("from 0.3 to 0.3") or, lower still, an INVERTED suggestion that tightens the crop.