Quad Fill

Creates a set of mostly quad faces to fill an opening. Only one of the open edges need be selected to fill the hole.  

Available from Edge or Face mode.

The row of images below show a Quad Fill to close an opening and then a Curve command to curve the faces created by the Quad Fill.


Face Fill

Creates a face to fill an opening. Only one of the open edges or a face on an open edge needs to be selected to fill the hole. The resulting multi-sided face may need further editing to produce quads.  

Available from Edge or Face mode.

The first row of images demonstrates filling in a 4 sided hole with quad face by selecting an adjacent face.  Edge selection would have done the same thing.

The second row of images demonstrates filling a many sided hole and then using the Insert Edges command to create quads on the 12 sided face.


Quadize

Quadize takes groups of selected faces and tries to make a new set of quads on those faces that has a more optimal shape and has mostly quads.  This tool is good for cleaning up poor topology.  

The following images show a before and after for the Quadize tool.

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