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How do I make a plane mesh cast shadows?

I made most of my wall 3d assets as planes but i noticed that the light goes through the black/useless part of the plane, therefore the wall is not casting any shadows, nor the roof Cast shadow is enabled....

How do i fix this?

Product Version: UE 4.18
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asked Feb 20 '18 at 01:53 AM in Rendering

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GrievousOrder66
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2 answers: sort voted first

In the mesh details window: Shadow Two Sided: True

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answered Feb 20 '18 at 02:48 AM

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Brucey540
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a plane by definition has no depth, so only one side is rendered meaning only one side can block light. to combat this there is two solutions: give the plane depth (make it into a cube like shape) or set your material to two sided.

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answered Feb 20 '18 at 02:36 AM

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ThompsonN13
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