Depth passes

When  the user wants to follow the shape with the computing method (NOT follow the curve), he can also define the method of calculation of passes others than the first one.

Parallel

Further to the calculation of the first pass, the other passes are calculated according to a parallel line in the previous pass. The removing material between every pass will be constant.

Z shift(s)

Further to the calculation of the first pass, the other passes are duplicated according to the axis Z. The removing material between every pass will NOT be constant (especially on faces close to the vertical direction)

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