[Art] placeable and tile Globes aren't very spherical

[shadguy]

Describe the bug
This issue is migrated from nwn-issues at Jasperre's request: several globe assets in game received complaints from my players that they look more like "sad potatoes" than spherical globes.

Models identified so far:

• tin01_s17_01 - Interior tileset Wizard's Den
• plc_x0_glo - placeable
• tni01_s187_01 - Wizard's Den reskin, not mentioned in initial report

Original issue report: Beamdog/nwn-issues#282

Screenshots
See link to original report for screenshots. A demo module is included at that link.

Information
NA

Additional context
Issue inherited from legacy assets eg this is not a regression.

[Finaldeath]

can't find tni01_s187_01 I guess that's custom content. The other two look fixable by a good artist.

[shadguy]

Sorry, typo: tni01_s17_01.mdl

Fat fingers.

-Dave