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Edit Mesh > Add Divisions |
Splits selected polygon components (edges or faces) into smaller components. Add Divisions is useful when you need to add detail to an existing polygon mesh in either a global or localized manner.
Polygon faces can be divided into three-sided (triangles) or four-sided (quadrangles) faces. Edges can be subdivided so that the number of sides on a face is increased.
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Edit Mesh > Add Divisions > 
Settings
Determines how the selected faces or edges get subdivided into smaller components. The Division of the components can occur in either an exponential or linear manner.
Exponentially
Divides the selected faces or edges recursively based on the Division levels setting. That is, the selected component is divided in half, then each half is further divided in half, and so on. The location for a division on a face is dependent on the number of border edges surrounding the face.
Linearly
Divides the selected faces or edges into an absolute number of segments based on the Division levels setting. For polygon edges, Linear specifies the number of new vertices that get inserted on the selected edges.
Note
The Exponential or Linear Controls that appear in the Add Divisions options window change depending on whether polygonal faces or edges are currently selected in the scene.
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Exponential Controls (for faces)
Division levels
Specifies the number of divisions that occur for selected faces. The option can have a value ranging between one and four. The default value is one. A Division level of one divides a single face into four smaller faces when Exponentially is the selected Division method. If the Division level is set to two, a single face is subdivided into sixteen smaller faces.
Mode
Turn quads on to subdivide faces into quads or turn triangles on to subdivide faces into triangles. These options are only available for faces.
Exponential Controls (for edges)
Division levels
Specifies the number of divisions that occur for selected edges. The option can have a value ranging between one and four. The default value is one. When polygon edges are divided using the Exponentially option, a Division level of one inserts a single vertex along the edge dividing it into two edges. When the Division level is set at two, a single edge is divided into four smaller edges.
Minimum length
Sets the minimum length of each sub-edge created. This option is only available for edges.
Worldspace
When turned on, the specified Division value is the distance between vertices in world space. When turned off, the Divisions value is the distance between vertices in local space. This option is available for edges only.
Linear Controls (for faces)
Divisions in U, V
When Linearly is the selected division method for faces, you can specify the number of divisions that occur along U and V for a polygon. For example, when the Subdivisions in U and V are set to three and two, the polygon face would be divided into six smaller faces.
Linear Controls (for edges)
Division levels
When polygon edges are subdivided using the Linearly option, a subdivision level of one inserts a single vertex along the edge dividing it into two edges. When the subdivision level is set at two, two vertices are inserted along the edge to subdivide it into three smaller edges.
Minimum length
Sets the minimum length of each sub-edge created. This option is only available for edges.
Worldspace
When turned on, the specified Division value is the distance between vertices in world space. When turned off, the Divisions value is the distance between vertices in local space. This option is available for edges only.