FBX Importer and custom normals

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It looks like the FBX importer doesn't support custom normals yet. Below are some screenshots of what I am seeing. The first is a chamfered box in max with a single smoothing group and custom normals. The second is the same box imported in to Lumberyard. The custom normals didn't carry over. Any ETA on when this might be supported? Thanks!

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質問済み 7年前292ビュー
10回答
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承認された回答

Howdy everyone,

Thanks for bringing this to our attention. I used Maya to verify and had the same issues:

  • Source mesh, smooth with custom normals (large faces of cube flat, bevels smooth)
  • Added to project as a FBX file:
    • It comes in with smooth normals, but they are not correct and the custom normals do not make it through.
  • Manually exported .cgf from Maya using legacy exporter
    • Custom normals are correct We've put in a ticket to get this fixed and will get back to the community when more comes to light.

In the meantime, the workaround for getting correct 'custom normals' on meshes in Lumberyard is to use the exporter for Maya / 3dsMax and export .cgf files.

We will let you know when we know more.

回答済み 7年前
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3ds Max 2017

回答済み 7年前
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They works.

It's hard to tell what's happening in your pic as the bright side is almost flat and the darker shade looks quite strange, possibly depending to other factors.

Try my fbx it works.

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4071-cube.zip|attachment (4.91 KB)cube.zip

Put vertex normal visualization to check as I did in this picture just to be sure it's not the material or something else.

回答済み 7年前
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Sorry @REDACTEDUSER

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REMOVEDUPLOAD

回答済み 7年前
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What program are you exporting from?

回答済み 7年前
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Hey all, one of our tech artists @REDACTEDUSER

回答済み 7年前
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Sorry the visualized vertex normal tricked me so I didn't paid attention to the roundness.It's quite strange indeed as the showed normals are the same, maybe something in the tangent space calculation.

回答済み 7年前
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Ok, so I had a post all made up, then did some more testing and realized my information was incorrect. While it was exporting certain custom normals, the shading on the chamfered box was exactly the same as the one with one smooth group. I tried everything I could think of to get the normals to display correctly, but was unable to. Smooth groups: 1, custom, flat, respectively.

Blender:

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LY:

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ASCII FBX:

https://agdpublic.s3.amazonaws.com/ly/normal-test-02.fbx

回答済み 7年前
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@REDACTEDUSER

回答済み 7年前
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Hey, Has there been an update for this?

回答済み 7年前

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