(The request is at the end! / fill with material)
SketchUp Solids can be somewhat buggy. I would like SketchUp to treat watertight shapes with more respect before calling them Solids
The program would benefit from doing so in more than one way.
Solids need to follow certain rules (watertight, etc.)
What is failing is the rule to have all faces in correct orientation.
Basically there are only two types of solids: without or with voids:
(the ones with holes through still have one surface: see rock and brick below)
What it comes down to is that all back faces should be oriented towards the material inside.
(Maybe) only loops from section planes with solids should have the option to be filled.
Or if other loops , say in basic geometry, can have ‘fill’, then there should be an additional option for solids: to give them a material. This is my request. The material could then be applied to fill section cuts.
If a solid has material assigned to it there would be the option to use that material by ticking it in the ‘Entity Info’ (otherwise it uses the basic color fill):
With the extra rule of face orientation volumes are calculated correctly. Otherwise there’s only confusion, leading to mistakes further on.
p.s. ‘Solid’ tools work better with faces oriented correctly. In some cases with mixed front and back faces applying the tools on two groups or components leave holes (not watertight) in the result while with the same shapes correct skins lead to correct results.