I try to model a shampoo bottle. The problem is that the bottle has a cut in the lid. Unfortunately the cut goes against the edge of my model. So I tried to use Blender’s knife tool but it didn’t work well. Also sculpting went totally wrong. All I’ve tried made a good cut but the surrounding looked totally aweful.
Is there an easy way to model such cuts into perfect industry-made materials?
Thank you and sorry for my bad english.