The Object Paint tool enables you to paint objects freehand anywhere in the scene or onto specific object surfaces. You can also “fill” selected edges automatically with paint objects. You can paint with multiple objects in a specific order or at random, and change the scale as you paint. Applications include applying regular surface features such as rivets, plants, columns, and even populating a scene with characters.
Note: Objects added with Object Paint are not combined with other objects or each other; they remain discrete objects in the scene. Thus, you can manipulate them using standard tools such as Move and Rotate after creation. However, each painted object is an instance of the original, so changing creation parameters, modifier settings, etc. for any painted object (or the original) changes all of them equally.