@pmndrs/bvh
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    Interface TopLevelResult

    interface TopLevelResult {
        builtCost: number;
        relativeCost: number;
        shape: TopLevelShape | null;
        workerMs: number;
    }
    Index
    builtCost: number
    relativeCost: number

    For checks: the old shape's relative SAH cost at the current transforms, and as built.

    shape: TopLevelShape | null

    A new shape, or null when a check found the old one still good enough.

    workerMs: number

    CPU time of the request (in the worker when there is one).