Edit Mesh > Bevel

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Edit Mesh > Bevel >

Offset Type

Select the way that the bevel width is calculated.

Fractional: When Fractional is selected, the bevel width will not be larger than the shortest edge. This option limits the size of the bevel to ensure no inside-out bevels are created. This is the default setting.
Absolute: When Absolute is selected, the Width value is used without restriction when creating the bevel. If too large a Width value is used the bevel may turn inside-out.

Offset Space

Determines whether a bevel applied to a scaled object will also be scaled in relation to the scaling on the object.

World: If you bevel a scaled object, the offset will ignore the scaling and use world space values. This is the default setting.
Local: If you bevel a scaled object, the offset is also scaled relative to the scaling applied to the object.

Width: Specifies the distance between the original edge and the center of the offset face to determine the size of the bevel. The Width option is dependent on whether the Offset Type is set to Fractional or Absolute.

When Fractional is the Offset Type, the Width value is limited to a range between 0 to 1 that controls the distance between the original edge and the center of the offset face. When the Width value is 1, the distance will be the maximum possible (based on the shortest edge) that will not produce an inside-out bevel. A Width value greater than 1 will produce inside-out bevels.

When Absolute is the Offset Type, the Width value is the distance between the original edge and the offset face measured in the scene’s linear unit. This is like the radius of the bevel. A large Width value can produce inside-out bevels.

Values range from 0.2 to 10.0, although smaller values produce better results if World Space is turned off.
Segments: The Segments value determines the number of segments created along the edges of the beveled polygon. Use the slider or enter a value to change the number of segments. The default is 1.
Automatically fit bevel to object: If you select Automatically fit bevel to object, Maya automatically determines how the bevel fits the object. If selected, you cannot change the Roundness value.
Roundness: By default, Maya automatically adjusts the rounding to bevel an object based upon the object's geometry. If you select Automatically fit bevel to object, this option is dimmed. If Automatically fit bevel to object is not selected, use the Roundness slider or enter a value to round the bevel edges. You can set the Roundness to a negative number to create inward bevels.

UV assignment

Specifies how UV texture coordinates are modified as a result of the bevel operation.

Planar project per face: Each original face is projected using a planar projection to produce UVs that incorporate the new faces resulting from the bevel. The boundaries of the original UV coordinates may be modified as a result.
Preserve original boundaries: UVs are incorporated into the UV map that maintain the UV boundaries that existed prior to the bevel. For best results, use an even value for the number of Segments.

polyBevel node

Additional modifications can be made to a bevel by editing the following attributes on the polyBevel node using the Channel Box or the Attribute Editor.

Angle tolerance: Bevel uses this angle to decide whether it needs to insert extra edges. If your model still has unwanted edges, try increasing this value to remove them.
Merge vertices: Merges vertices automatically when beveling an edge without having to use the Merge Vertices feature separately. Coincident edges and their associated UVs are also merged automatically (within a specified threshold). The Merge Vertices attributes are turned on by default and can alternately be edited within the Channel Box.
Subdivide Ngons: Subdivides any faces that have large numbers of edges as a result of doing a bevel operation with more than one segment. The subdivide Ngons option is turned on by default and can alternately be controlled within the Channel Box.
Smoothing angle: Lets you specify whether you want the recently beveled edges to appear hard or soft when shaded.

If you want the beveled edges to be soft, you can set the Smoothing Angle to a high value such as 180. If you want the beveled edges to be hard, you can set the Smoothing Angle to a low value such as 0.

In general, if the angle between two shared edges is greater than the value specified by the Smoothing Angle attribute, the beveled edge will be shaded to appear hard. The default Smoothing Angle value for polygon Bevel is 30 degrees.
Mitering angle: Controls how two intersecting beveled edges get joined when an intersecting non-beveled edge is involved. You can specify whether you want the recently beveled edges to be mitered or not by setting the Mitering Angle value as required.

If the angle between the two beveled edges is greater than the specified mitering angle, the beveled edges will not be mitered. The Mitering Angle feature is on by default and is set to 180 degrees.