Vex shader that uses a pointcloud to drive texture stamping/bombing onto an object to remove obvious tiling. It supports up to 5 maps that can be randomly picked and mix. The map selection can be driven by a Cd attribute on the points. Overlaps are handled by fading out from the center of the point outwards, and angle (dot product) can also be used to fade out the texture to control stretching.
Visit: http://fx-td.com/?p=544 for download, info and example images.
More on texture bombing here: http://http.developer.nvidia.com/GPUGems/gpugems_ch20.html