Neon material doesn't render in item thumbnails

Reproduction Steps
1- make a part and set its material to neon
2- upload it to Roblox as model

Expected Behaviour
The neon should be rendered as any other part would.

Actual Behaviour
Neon isn’t rendered. When it is positioned in the thumbnail, it causes the location where the neon should be, to be missing:

I’ve uploaded two parts in the same model to show only the neon one isn’t being rendered, the plastic one is rendered:
Screen Shot 2022-01-16 at 8.49.35 PM

As you can see, in the thumbnail’s preview, the neon does show:
Screen Shot 2022-01-16 at 8.49.49 PM

However, upon uploading, only the single face that was plastic was rendered:

Link is here, I’ve enabled copying:


Issue Area: Roblox Website
Page URL: All model websites, here’s the model link again: Model - Roblox
Impact: Moderate-high - I use model thumbnails as item thumbnails.
Frequency: Constantly


Pretty sure you’ve got a white Part in the image, on a white background so the image is identical to the one from the preview, the white on white is just hiding.

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Happens with a black neon part as well. I’m also on dark mode so I don’t think that’s happening


I’ve uploaded one with black neon here:

Its always been like this. I’m not sure why, but my best guess would be the thumbnail system they have doesn’t support special materials, like Neon and Forcefield.

Interestingly enough, forcefield works as normal.

Then its likely just an issue with rendering neon. Tho I believe neon objects used to just be white in thumbnails

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Can confirm this happens to me, but I believe this is just a rendering issue, and has always been like this. Maybe, in the upcoming material changes, they’ll finally fix this.

Have you tried red or orange or whatever colored neons?

yes, in this asset the neon colour is really blue, only the face detail is seen…

link: Glowing Blue Winking Noob - Roblox

btw i made this

also i can’t show the asset picture in studio bcuz its glitched for me…

you might be thinking “well maybe it renders in dark mode”, well bad news- IT’S NOT RENDERING THAT WAY ALSO!


Neon, Glass, and ForceField are odd materials, so they may not render.

Both forcefield and glass render normally.

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Hello all,

Thank you for reporting this. This should be fixed for the Neon material. Please let us know if this doesn’t work for other materials.



IT WORKS!!! This issue has been hindering my developing for so long, you’re a life saver. THANK YOU!


1 Like