Page 726 - Kitab3DsMax

Part VI: Advanced Modeling
Using the Deformation Brushes
The Push/Pull brush may be used to pull vertices away from the object surface or to indent the surface by
moving the surface toward the object’s center. The difference is determined by the Push/Pull value. Positive
values pull vertices, and negative values push vertices.
Tip
Holding down the Alt key while dragging reverses the direction of the Push/Pull brush, causing a pull brush to
push and vice versa. n
Controlling the deformation direction
By default, dragging over vertices with the Push/Pull brush causes the affected vertices to be moved inward
or outward along their normals. If you drag over the same vertices several times, they are still deformed
using the original face normals.
The Deformed Normals option causes the vertices to be moved in the direction of the normal as the nor-
mals are deformed. Using the Original Normals option causes the deformed area to rise from the surface
like a hill with a gradual increasing height. The Deformed Normals option causes the deformed area to bub-
ble out from the surface.
The Transform Axis option causes the vertices to be moved in the direction of the selected transform axis.
This option is useful if you want to skew or shift the deformed area.

Limiting the deformation
If a subobject selection exists, then the vertices that are moved are limited to the subobject area that is
selected. You can use this to your advantage if you want to make sure that only a certain area is deformed.

Committing any changes
After you make some deformation changes, the Commit and Cancel buttons become active. Pressing the
Commit button makes the changes permanent, which means that you can no longer return the vertices to
their original location with the Revert brush. The Cancel button rejects all the recent deformation changes.

Using the Relax and Revert brushes
The Relax brush provides a much more subtle change. It moves vertices that are too close together farther
apart, causing a general smoothing of any sharp points. It works the same way as the Relax feature for the
Editable Poly object and the Relax modifier.
The Revert brush is used to return to their original position any vertices that have moved. For example, if
you pushed and pulled several vertices, the Revert brush can undo all of these changes for the area under
the brush cursor.

Tip
Holding down the Ctrl key while dragging with the Push/Pull brush lets you temporarily access the Revert
brush. n

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