# Problem with the weight paint mode when there are a lot of geometry on the mesh

I have some problem with the weight painting of the mesh,check the attached video and tell me please what's the correct way to operate,in this case. Since there are a lot of geometries on the mesh,I suspect that I need to use the face/vertex selection masking for painting,but I don't know how.

demonstration video

screenshots :

NB : I also tried to use the vertex selection masking and you can see in the video below that it didn't work...

this

• I think before/after screenshots would be better as images can be embedded in the question instead of having to download a video (or have that as well). – Ray Mairlot Jul 29 '17 at 17:57
• screenshots attached. – Marietto Jul 29 '17 at 19:33