I use blender for 3d modelling and you’ll have an option to smooth shade your meshes to make it more… well, smooth. however when i imported it into roblox the smooth shading is gone
It is shaded smooth. However, Roblox applies SSAO (Screen Space Ambient Occlusion) on meshes.
This makes meshes look more realistic. When you have sharp topology, SSAO gets applied.
I don’t think there’s an option to disable this, it only gets disabled if the Roblox quality setting gets lowered.
But there’s a way to stop SSAO from getting applied. And that is avoiding sharp topology.