Pinch Brush

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Effect of Pinch on topology.
Pinch pulls vertices together; it is, roughly, the inverse of the Magnify brush. It is very useful for sinking in detail for creating clothing and wrinkles, and for adding hard edges to any form. The Pinch brush has been augmented with an elevation slider which allows the artist to pinch in and out along the surface of the model to really sink in detail or harden the edge.
Note: As in the example shown here, Pinch is often used with LazyMouse to achieve smooth, precise ridges, even with multiple passes.
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Pinch Controls

Pinch: When the Pinch brush is selected, sculpting will cause vertices under the brush to be pinched together along the surface. In addition positive values of the pinch slider will cause the pinched vertices to move outward from the surface, negative values will cause them to move inward. The standard Z Intensity control controls the magnitude of the pinching effect.
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