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Imported FBX render with artifacts

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Adelson Munhoz

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Imported FBX render with artifacts

PostSat Jan 30, 2016 6:10 pm

I found a weird behavior when importing FBX files in Fusion.
I created a cylinder in Blender with 100 segments and exported it in FBX.
Then I imported it in Fusion.
I created a new cylinder with the same size and segment number in Fusion using the Shape3D tool.
I placed both side by side, added a directional light and rendered the result.
This is what I got:

teste_banding_01.jpg
teste_banding_01.jpg (111.94 KiB) Viewed 944 times


The FBX rendered with strong banding artifacts, while the Shape3D rendered smoothly
RGBA SuperSampling is ON

It seemed that the segment number of the imported FBX was lower than the Shape3D, but the wireframe image shows it is not the case:

teste_banding_02.jpg
teste_banding_02.jpg (452.1 KiB) Viewed 944 times


The triangulation of both is slightly different but it is not likely to be the problem.
Any ideas of what is going on?
Davinci Studio | Windows 11 | AMD Ryzen 5950X | 2x Radeon RX 6750XT | 64GB RAM
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Sander de Regt

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Re: Imported FBX render with artifacts

PostTue Feb 02, 2016 1:03 pm

The cilinder in Blender isn't smoothed. That's the basic problem.
Sander de Regt

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The Netherlands
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Adelson Munhoz

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Re: Imported FBX render with artifacts

PostTue Feb 02, 2016 4:01 pm

Hi Sander, thanks for the help.

You are right. Turning on the shade smooth on Blender prior to export the FBX solved the issue.

However I manage to get rid of the artifacts inside Fusion without re-exporting the FBX from Blender.

I used the ReplaceNormals3D tool and choose Normals>Recompute>Always

There is the result:

teste_banding_03.jpg
teste_banding_03.jpg (122.17 KiB) Viewed 924 times


Hope it helps someone.
Davinci Studio | Windows 11 | AMD Ryzen 5950X | 2x Radeon RX 6750XT | 64GB RAM

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