I understand there are plenty of solid difference posts on this forum, but my problem seems so simple and I still cannot figure out what is wrong. I am trying to create a hollow sphere by performing a solid difference on two sets of spheres, one bigger than the other. When I use the solid difference component, I get the resulting volume as the same as my original large sphere. When I swap the inputs I get the volume of my smaller sphere. I think this might have to do with the spheres being untrimmed surfaces? I am still not totally familiar with all the different types of breps, so if anyone could point me to information on that I would also appreciate it. Screenshot and gh file attached.
hollow sphere.gh (12.5 KB)