Smart Extrude now features two new operations when performed with a
Shift+Drag extrusion on an Editable Poly or Edit Poly modifier.
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When performing an inward extrusion: Smart Extrude can now cut through and delete faces on any part of the mesh the result completely extends through. The resulting hole is restitched to the surrounding faces. This is similar to a boolean subtraction, but performed on a polygon component.
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When performing an outward extrusion: If the result of an outward extrusion completely goes into another face on any element on the mesh, the intersecting results are stitched together to form a clean result. This is similar to a boolean union, but performed on a polygon component.
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