u/Feisty-Advance-4175

I want to use the mask by object node

to remove the noise from this section of the grid but I don't know how and can't find an explanation anywhere

https://preview.redd.it/k4qwpsah1t1h1.png?width=518&format=png&auto=webp&s=731cde184f2824bd5b76d6453612c7535b8eb682

https://preview.redd.it/iu5u2bfq1t1h1.png?width=1057&format=png&auto=webp&s=7ec989446d48e1d5bd93e251a901f3f3ee626f99

I am in the stage and use a sopnet