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why datasmith chang materials to instance without parent material?

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Hi , After I import datasmith from 3ds max , all my materials become instance material . And they have lost their parent material too . As attached my WOOD material become instance material and it's parent material become STONE material. I can't modify anymore, kindly let me know where went wrong . Best Regards Hlaing Min

Product Version: UE 4.21
material.jpg (901.0 kB)
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asked Mar 04 '19 at 04:44 AM in Rendering

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Hlaing Min
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According to the documentation (https://docs.unrealengine.com/en-us/Studio/Datasmith/SoftwareInteropGuides/3dsMax - under the Materials section)

"For each material in your 3ds Max scene, Datasmith creates a new Material Instance in your Unreal Engine Project. Each of these Material Assets is an instance of a Parent Material that Datasmith also creates in your Project, in the Materials/Master folder."

The parent material should be located in the folder mentioned.

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answered Mar 04 '19 at 02:16 PM

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Stephen Ellis ♦♦ STAFF
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avatar image Hlaing Min Mar 04 '19 at 04:51 PM

Yes I tried to find it in master folder. But some materials are really disappear . And some instance material are not connect to the correct parent Material . As you can see in my picture attached. Instance material is WOOD and parent material is STONE.

avatar image Stephen Ellis ♦♦ STAFF Mar 04 '19 at 05:49 PM

It sounds like there may potentially be an issue for us to investigate further.

Please submit a bug report at the link, and share all available information, including a test asset if possible, so that we can attempt to reproduce the issue.


Thank you.

avatar image Hlaing Min Mar 06 '19 at 05:49 AM

Ok I did submit the bug.

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