Result of computeDimensionStep — the next position for the targeted dim.
computeDimensionStep
Index into dims.currentStep that should be updated.
dims.currentStep
The new value to assign at targetDim.
targetDim
true iff the new value differs from the current value by more than a step-relative epsilon (snapStep * 1e-9).
true
Result of
computeDimensionStep— the next position for the targeted dim.