3D Assets - Common uploading issues
This article will help you find solution to any common uploading issue.
If no Material information is found in the uploaded asset, a default material will be created and assigned to your Meshes.
Materials - What & How to use?
When uploading files with more than 25 meshes, the meshes will be either combined into a single mesh called Mesh_1 or the upload will fail.
To avoid this, you need to combine group layers into single meshes or export model in separate files. Always aim to have the least amount of meshes and materials for optimal performance.
Rhino https://discourse.mcneel.com/t/merge-layers/2917
Sketchup https://forums.sketchup.com/t/how-do-i-ungroup-all-and-merge-all-layers/14388
Blender: https://all3dp.com/2/blender-how-to-merge-objects/
When working with 3D, it's often necessary to use faces that are only visible from one side. This means that the other side is see-through or transparent. If you notice any areas on your 3D model that are transparent or appear darker than others, you may need to adjust the way the Vertex normals are calculated.
Smoothing groups are a way to make 3D objects look smoother and more realistic by grouping together parts that should look like a single smooth surface, so that they are shaded accordingly. This helps to eliminate the jagged and choppy appearance that can occur when shading is calculated independently for each polygon.
If the textures you uploaded aren't displaying correctly, try turning on the UV map editor option. This will put a plain texture on your model and make it easier to figure out what's going wrong. When the UV maps are properly unwrapped, the pattern on the texture should be consistent throughout the model with no distortions.
For CAD models, make sure that your UV maps are packed to 1:1 UV space.
Product uploaded with no materials
If no Material information is found in the uploaded asset, a default material will be created and assigned to your Meshes.
Materials - What & How to use?
Model uploaded with no layers (Mesh_1)
When uploading files with more than 25 meshes, the meshes will be either combined into a single mesh called Mesh_1 or the upload will fail.
To avoid this, you need to combine group layers into single meshes or export model in separate files. Always aim to have the least amount of meshes and materials for optimal performance.
Rhino https://discourse.mcneel.com/t/merge-layers/2917
Sketchup https://forums.sketchup.com/t/how-do-i-ungroup-all-and-merge-all-layers/14388
Blender: https://all3dp.com/2/blender-how-to-merge-objects/
Vertex normals
When working with 3D, it's often necessary to use faces that are only visible from one side. This means that the other side is see-through or transparent. If you notice any areas on your 3D model that are transparent or appear darker than others, you may need to adjust the way the Vertex normals are calculated.
Smoothing groups
Smoothing groups are a way to make 3D objects look smoother and more realistic by grouping together parts that should look like a single smooth surface, so that they are shaded accordingly. This helps to eliminate the jagged and choppy appearance that can occur when shading is calculated independently for each polygon.
Texture does not look correct
If the textures you uploaded aren't displaying correctly, try turning on the UV map editor option. This will put a plain texture on your model and make it easier to figure out what's going wrong. When the UV maps are properly unwrapped, the pattern on the texture should be consistent throughout the model with no distortions.
Pack UVs to 1:1 UV space
For CAD models, make sure that your UV maps are packed to 1:1 UV space.
Updated on: 24/04/2023
Thank you!