Used to drag a group of vertices around. Grab selects a group of vertices on mouse-down, and pulls them to follow the mouse. And unlike other brushes, Grab does not move different vertices as the brush is dragged across the model. The effect is like moving a group of vertices in Edit Mode with Proportional Editing enabled, except that Grab can make use of other Sculpt Mode options (like textures and symmetry).
- Grab Active Vertex
Snaps the maximum strength of the brush to the highlighted active vertex, making it easier to manipulate low-poly models or meshes with subdivision surfaces.
Enabling this option also enables a dynamic mesh preview which generates a preview of vertices connected to the active vertex. This helps to visualize the real geometry that is being manipulating while sculpting with Modifiers.
- Grab Silhouette
Attempts to preserves the object's silhouette shape. The shape of the silhouette is determined by the orientation of the 3D Viewport.