UGC Thumbnails Glitching

Bug Reports Roblox Application and Website Bugs
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1

Some UGC items with custom FOV thumbnail settings on the Roblox Marketplace have glitched thumbnails and 3D showcases on the item page. However, these glitches don’t appear in-game, in “Try on” character view, or on the mobile app marketplace.

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Screenshot 2025-03-02 at 2.41.13 PM1516×1488 77 KB

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Screenshot 2025-03-02 at 2.46.38 PM1152×1152 38.7 KB

Example 1: Y2K Red Purse Trendy Girl Side Handbag Gyaru 2000s - Roblox
Example 2: Satoru Gojo Hair Glowing - Roblox
Example 3: Share Bear Carried on Back Christmas Care Bears - Roblox

Expected behavior

No glitches in the thumbnail and all parts of items showcasing correctly.

4 Likes
2

This happens when your thumbnail’s camera is too far away from the object. If you are using the plugin “UGC Makers Toolbox”, your zoom should be set no lower than -20. I personally use -15 zoom to get my desired results.

3

Did the workaround provided by @Rockerite solve the issue for you @TopcatRB ?

4

Yes, but certain accessories require zoomed in thumbnails, so I consider that this issue still needs to be resolved on the render side.

5

Otherwise we cannot produce high CTR thumbnails for the items

6

There are a couple things at play here that make it hard to resolve purely from a rendering point of view.

There is an interplay in how close the geometry is modelled that causes the intersection issues, combined with the specific camera settings.

I’ll spare you the technical details, you can find them here: Visualizing Depth Precision | NVIDIA Technical Blog

But in short, there is no one-fits all solution in all cases. So fixing it for your assets will still break it for others.

7

Understood, thanks for clarifying.