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Using a convolution matrix in shader forge

Brad Hammond 8 years ago updated by Fabio Franconeri 7 years ago 2

I've started playing with Turing patterns and using convolution matrices and came to realize this is how a lot of different filters are done.

I was wondering if there is a way this mothodology of sampling neighbor pixels to the current one can be implimented in shader forage?

Answer

Answer
Completed

It's possible but very cumbersome to make, at least if you have a large matrix.

But yes, just shift the UVs and sample again, and do whatever you like with the result!

Answer
Completed

It's possible but very cumbersome to make, at least if you have a large matrix.

But yes, just shift the UVs and sample again, and do whatever you like with the result!

here's an example...