Generators render basic patterns and materials like wood, stone, rock, water caustics, brick etc.

Here is an overview of the Generator functions class:

	Blobs	Fractal blob texture (for e.g,. rock).
	Blocks	Rotated rectangles (for e.g., Manhattan pattern).
	Bricks	Displaced bricks pattern.
	Caustics	Underwater caustics.
	Chaos Pattern	Random pattern of combined functions.
	Checker	Basic checker pattern.
	Clouds	Clouds, pumice, boiling gas.
	Complex	Regular patterns defined by a rule system.
	Dots	Displaced gradient ellipses.
	Expression	Patterns defined by mathematical expressions.
	Flagstone	Randomly located stones.
	Flagtech	Alien architecture.
	Gradient	Aligned color gradient.
	Gravel	Large and small stones.
	Grid	Grid of wacky lines.
	Hexagon	Pattern built with hexagons.
	Horns	Arbitrary placed and rotated horns (for e.g., forest soil).
	Life	Chaotic pattern with little features (for e.g., bumpmaps).
	Lines	Horizontal and vertical lines (for e.g., barcodes, pedestal).
	Lumps	Randomly placed gradient ellipses.
	Mandelbrot	Randomly placed gradient ellipses.
	Marble	Distorted, vertical stripes.
	Matrix	User defined patterns.
	Mosaic	Symmetric lines patterns.
	Noise	Randomly colored squares.
	Perlin Amp	Synthesis of lattice noise.
	Perlin Noise	The mother of all noise functions.
	Plasma	A classic noise function.
	Plates	Subdivision rectangles pattern.
	Rectangles	Synthesis of blended rectangles (for e.g., shiphulls).
	Ridged Perlin	A variation of the Perlin Noise function, good for heightmaps.
	Scales	Roofs, snakes and dragons.
	Scratches	Lines, rotated and scaled by random.
	Sinus Synthesis	Synthesis of sinus waves.
	Spots	Pattern of rounded and distorted spots (for e.g., cracked earth)
	Star Field	Smaller and bigger stars.
	Stone	Walls, rock, concrete.
	Stream	Vertically moving waves.
	Tiles	Eroded plates.
	Triangles	Wacky, connected lines (for e.g., fence).
	Turbulence	Smoky noise.
	Veins	Random structure with small and large cells.
	Waves	Great for simulating animated water textures.
	Wood	Vertical grain.
	Wood2	Wood with notches in all directions.
	Worley	A cell noise texture.