Weird stains appear when painting over normal map in SP

KayHuang · Oct 2023

I was painting the normal and tried to fix some baking errors on my mesh in SP. I tried this method before in the previous version, and it works well. Then, I noticed that whenever I paint over the mesh, some weird stains appear on the surface, or I call them specks of dirt. How should I fix it?

Before paintover

After paintover

Image: https://us.v-cdn.net/5021068/uploads/editor/xw/q63wl4kn6gxb.png

Before paintover

Image: https://us.v-cdn.net/5021068/uploads/editor/bn/pfrmm6y9b19w.png

After paintover