Why my Mesh's area covered wrong so I look like I'm flying

Why I look like I’m flying?


my mesh:
Roblox_Test_build.obj (66.2 KB)
my roblox rbxl :
MESH_OBJECT_TEST.rbxl (33.2 KB)

just to test i made a mesh like this , and yes I am new at blender
I used .obj

You need to change the CollisionFidelity of the mesh to either Hull, Default, or PreciseConvexDecomposition.

image

By changing this property, the collision geometry surrounding the mesh will be changed at the slight expense of performance, but this will give you more accurate collisions and stop the floating.

This tutorial further explains CollisionFidelity (see the section titled ‘Choosing CollisionFidelity’).

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I think if you set the Collision Fidelity to hull, default, or precise it should fix this. Keep in mind that the higher you go with these, the more laggy your game will be, so use the lowest one possible.