Intersect (Knife)

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Face ‣ Intersect (Knife)

The Intersect tool lets you cut intersections into geometry. It is a bit like the Boolean tool, but, does not calculate interior/exterior geometry. Faces are split along the intersections, leaving new edges selected.

Source
Self Intersect

Operate on the overlapping geometry of the mesh.

Selected/Unselected

Operate between the selected and unselected geometry.

Separate Mode
All

Splits the geometry at the new edge.

Cut

Keep each side of the intersection separate without splitting the faces in half.

Merge

Merge all the geometry from the intersection.

Solver

Algorithm used to calculate the intersections.

Fast

Uses a mathematically simple solver which offers the best performance; however, this solver lacks support for overlapping geometry.

Merge Threshold

Tolerance for close faces to be considered touching. It may be useful to increase this when some intersections aren’t detected that should be and when extra geometry is being created because edges aren’t detected as overlapping.

Предупреждение

A threshold approaching the size of faces may cause very slow calculation, in general keep this value small.

Exact

Uses a mathematically complex solver which offers the best results and has full support for overlapping geometry; however, this solver is much slower than the Fast Solver.