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Unlit material that casts shadows

My character has an unlit material on him, and so far that's worked great, but now I want to have him cast a shadow. I would simply change the material from unlit to lit, but the problem is that this character doesn't have any normal maps, and isn't very smooth naturally, so when full lighting is turned on, he has a lot of edges clearly visible. Is there any way to make a material seem to be unlit, but still cast a shadow?

Product Version: UE 4.7
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asked May 26 '15 at 04:53 AM in Rendering

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You can try to do fake unlit material based on lit material.

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unlit_fake.png (854.6 kB)
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answered May 26 '15 at 07:44 AM

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avatar image CazOki Mar 04 '18 at 06:53 AM

You freaking genius. I have no idea why your comment wasn't marked as an answer. FYI if you have custom ground textures that are also unlit. You will need to make the texture Base Color and Emissive Color for shadows to show up.

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Unlit materials by definition do not interact with light, so they don't cast shadows. However you can usually get what you want by using a lit material, setting BaseColor and Specular to 0, then just keep your EmissiveColor input.

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answered May 26 '15 at 07:32 PM

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I got the same problem: unlit material cast shadow and second method odesn't work aswell. I am using 4.16.1

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answered Jul 28 '17 at 10:12 PM

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Bartosz Kamol Kamiński
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