Fill holes of model

Development Asset Creation
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1

I got a low poly pack with cars, but the bottom is invisible.

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But I want the car to be viewed from all sides. I’m new to modeling in UE5 and tried to fill the hole with the “Fill Holes” tool.

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The result is close to what i want, i just dont understand how to get rid of the line in the middle to the top of the car. This is messing up the result. Is there a way how I can select only the lines that should be used to fill the hole?

2

They’re not holes. It’s just a single sided mesh.

The easiest way to make it look better, is to make the material two sided. You can do that even in a material instance.

It won’t stand up to very close inspection, even then, because basically nobody has modelled the underside. If you want a total solution, you either need to make a mesh that fits underneath, or get a car model that is 360.