The Lattice Rig tool uses a lattice to affect global shape modification. The geometry is shaped by moving the lattice points, which squeeze and pull the model. The Lattice Rig tool is especially suited to general volumetric shape changes to a model. Consider using the Lattice Rig for more conceptual and fast explorations.
The lattice is a manipulator in the Lattice Rig tool. It is initialized as a bounding box around the target geometry.
The lattice has two modes: disengaged and engaged. A disengaged lattice is drawn with dashed lines, and when modified, has no influence on the target geometry. This gives you the ability to refine the lattice to suit the intended modifications of the target geometry.
An engaged lattice is drawn with solid lines, and when manipulated, modifies the target’s geometry.
You can shape the disengaged lattice so that it does not fully enclose the targets.
When the lattice is engaged, everything that is outside the lattice remains unchanged; everything that is inside the lattice is modified.
To facilitate this, parts of the lattice that intersect the targets are locked and drawn in red.
In disengaged mode, the lattice points are modifiable; in engaged mode these points are not modifiable.
For the purposes of locking the lattice, this tool treats trimmed surfaces as if they were not trimmed.