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What makes maple "flame"?

What is the natural (?) phenomenon that makes maple "flame" with the cool 3D stripes. What makes it "quilt"?

It's all about how the fibers run within the wood. With plain looking woods, all the fibers run straight. Woods with flame or other cool patterns, the fibers lay in a wavy pattern, some, a very tight wavy pattern. The best way to see this is to look at the wood from the edge instead of from the top.
 
I believe it also has to do with environment, including location of the wood on the tree and the amount of water available during the growth of the tree. I love highly figured wood. ;)
 
this guy seems to be on to something - [Invalid or Expired Link Removed]

Dr. Kramer’s research combines experiment, biophysical theory, and computer models to study the transport of plant hormones and their role in plant development. Auxin—a hormone involved in many aspects of tree development—is synthesized in growing leaves and transported downward through the branches and trunk. An excess or deficiency of auxin causes the cells of wood-forming tissue to rearrange, giving rise to the characteristic grain patterns of mature wood.......