Create ice particles, slap on a normal vector and color, export them as fgmap files final gathering can use. For science.

Download: mayulive.com/fgmap_exp/

They need to be added to the attribute list in the order position, normal vector, color.

Also, you can fiddle with the number of rays parameter under final gathering to force it to reload the current map file, otherwise it won't grab the exported one for the current frame.

It probably won't crash. Probably. Might have to lower the output chunk size if it does, but it should be fine. let me know. 32bit build untested.

fgmap files have a few other weird options to mess with the color on one side of the point and ... like... rotate the outer part of it around somehow ... Those are just zeroed out.

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