Removing interior polygons

Hi. It is there a problem if I remove the interior polys of a mesh (eg a jacket) which cannot be seen by the engine, or this may cause issues with shaders or else?

It won’t cause any problem oppositely it’s good for optimization.
Just make sure the whole game-play won’t catch the flaw. That’s it.:wink:

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Ty Akira.
This means also that the engine shall not see the inner polys, if eventually I will leave them? And the, if I remove, I should anyway provide some boundary polys to fake that there is an interior filling and avoid that the engine will see the void of facing backwards polygons?