11:38 PM, Friday July 24th 2020
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Subdivide what is needed.
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Same idea - if you're drawing it from an angle from which you can see those complicated forms along the underside, then obviously you draw them. If you're drawing it from an angle you cannot see them from, then there would be no point in doing so. If however you can see a small portion of such a form, you should draw the whole thing - meaning if you can see that cone-like form through the opening, you should draw the whole cone.