I'm new to Blender and I have this helmet model that I want to fill the inside of, but I'm not sure how to do it or if it's even possible. I've tried searching for videos or guides but nothing seems to cover what I'm looking for.
As you can see it's quite a complex model with lots of curves and angles so not very straightforward (at least to me).
Also if possible I'd like to create a separate piece that follows the profile of the Visor and would be able to sit behind it.
I basically want to make this into a solid object.