Newly available in my store: https://www.artstation.com/marketplace/p/Wv07/stw-blur-polish-substance-designer-custom-node
Originally i made this node for myself as a replacement for Hugo Beyer's Noise Polisher node that i've been using for many years in my workflow. I needed something similar that was up to date and tailored to my needs with more options.
This node is quite easy to use but very powerful. You weight between 4 modes via slider to remove high frequency noise from your input which results in polished or eroded looking results.
Super useful and a big time saver for making dirt, grout, plaster and things like that. You have options to make it more pillowy or pinched and you can optionaly remove low frequency noise from the weighted result if you are only interested in the remaining fine details for a flat surface.