Export OBJ vs Upload to Sketchfab Directly

Development Asset Creation
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bottom left Is 16K ONE file version

Botton right is 38 tiles for 2048K each tile 

 

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I’m a bit late to the party but to adress the OP’s original issue, I think all that’s required is to turn off vertex colors in Sketchfab’s 3D settings: https://help.sketchfab.com/hc/en-us/articles/210765623-Vertex-Colors

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better late than never :slight_smile:

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hehe, that’s quite true!