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