Uniformly sized and arbitrarily placed spheres render the Lumps generator function. Use it to create bumpmaps for e.g. a birdshots effect.

Each incremental step to the Elements Count value adds 10 lumps to the pattern. The Size parameter controls the lumps size relative to the smaller size of the texture's dimensions. E.g. if you set Size to 50 and have a 320x240 texture, the lumps will have a radius of 240x50%=120 pixels.