Blender Git Loki

Displace Node - Tile
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I had to make it into a Complex node to allow the readEWA to be used.
(the other alternative is to expose readEWA to all node types when dx and dy are
passed as parameter to read).

This node also uses the readEWA. It's the last one that needs that (from trunk nodes at least)

Thanks for Jeroen Bakker for the help in the determineDependingAreaOfInterest. Using +1 as max for the uv was producing precision problems resulting in a strange artifact (a vertical and a horizontal line from the origin (0,0))