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Does Empty Material Slot Cause a Draw Call?

Hello everyone,

I have a mesh which has 2 materials. I created LOD levels in the editor and I gave the last LOD only one material and cleared the other slot (which is WorldGridMaterial). I was wondering if that empty material slot causes a draw call? If so, how can I delete a material slot from a specific LOD level?

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asked Apr 26 '19 at 08:29 AM in Using UE4

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Core21.
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yes.

I dont know how to answer the second question though, but at least you got the first part answered :)

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answered Apr 26 '19 at 09:11 AM

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Luos
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avatar image Core21. Apr 26 '19 at 09:43 AM

So you mean an empty material slot causes a draw call.

I tried to delete the material slot from the LOD, but I couldn't find anything in the editor. Epic should add something like this in my opinion :) Not only deleting material slots from all LODs.

avatar image Luos Apr 26 '19 at 10:01 AM

yes, even when the slot is empty it will be a draw call.

And yes, sadly removing material slots is all manual work. Just part of gamdevthings hehe.

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