Two Questions: Irregular shiny surface & Deleting inner Boundaries

[micheus]

Hi starworf, welcome to our community.

The pic 2 didn't seem to be triangulated - not inside Wings3D as you are shown - I see only parallels faces on top (only quads).
Maybe, are you doing these operations during the Export process (using the export dialog)?

It seems you used the smooth in the pic 4 but had removed some edges in the top area, since we see four faces in the cylinder side for each face on its top. That can give you a problem too.

You would try the oort's suggestion or maybe set that top boundary edges as Hard and see if your engine will understand it better. Maybe that can fix the result you got in the pic 1.


About the combination, people already told you to use booleans - it's a plugin for Wings3D by ggaliens and certainly it will help you.
But, for simple geometry like that, sometimes it's possible to use Wings3d achieve that result too - just with a little efforts.(just planing)