Stamps work with the sculpting tools, masking the tip of a tool with an image that lets you apply interesting sculpted detail and features to a model.
Black values in the stamp image act as opaque regions that fully protect the model and white values in the image act as transparent regions that allow the tool characteristics to affect the model. Areas outside the stamp image are regarded as black and remain unaffected.
Stamps are especially useful for sculpting repeated features such as scales, shoe lacing, stitching, screw heads, or random textured effects that would otherwise be difficult to achieve.
You can create images of lines, text, geometric shapes, virtually any image can be used as a stamp to improve your sculpting.
You can apply stamps to a sculpting tool, so the stamp image affects the tool tip in a repeating manner when you stroke. See Sculpt using stamps.
You can apply stamps when sculpting in two ways: