Hi guys!
I’ve been developing a deformer in C++, and I have a workflow question 
before moving forward. i need to precompute a very large matrix (a Beltrami 
Laplacian) and some additional custom attribute data, but this should only 
happen once when the user clicks on something like "compute" in the 
deformer’s attribute editor.

I’m not sure about the best way to do this. I was thinking about using a 
custom attribute (I already have quite a few) and store the Eigen matrix 
there along with the other data, though I’m not sure how I’d handle 
readASCII readBinary in that case with Eigen.

Another option is to save it as a file alongside the Maya scene file, like 
xgen legacy does, but I feel like there might be a more Mayaish way to 
handle this.

Keep in mind, it’s not just the large matrix, there are multiple custom 
attributes as well.
If you guys have any suggestions or ideas, I’d really appreciate your input.
Thanks!

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