Recent Changes to Neon's Rendering Making it Bleed Excessively

Exactly 6 hours and 3 minutes ago—after my Roblox App and Roblox Studio updated on my Mac—I noticed neon started noticeably bleeding more. I’m not even referring to neon glow. Neon parts with no glow whatsoever are nonetheless bleeding


The above truss looks detailed when viewed up-close

Screenshot 2025-02-14 at 5.31.18 PM
From this distance it’s starting to succumb to the sky

Screenshot 2025-02-14 at 5.31.09 PM

Now it just doesn’t exist. a 30-or-so stud distance has rendered the truss specks on the screen.
As you can imagine, this is horrible for my experience, as objects not too far in the distance are disappearing, text is becoming unreadable, and the game is looking like jelly

Expected behavior

If this were functioning correctly again, non-glowing neon parts wouldn’t render like blobs

Here’s how it looked before the change:
Screenshot 2025-01-23 at 1.07.14 AM copy

3 Likes

Hi Tenny,
Could you send me a .rbxl file of this scene? You can PM it to me if you don’t want it to be public

Sorry about the late response. I discovered the source of the problem is probably from an update to ColorCorrection, as whenever I apply saturation, the bleeding occurs. I displayed this behavior in the following repro file:

neonBleedRepro.rbxl (78.3 KB)


I don’t think I’m seeing the same behavior as you. Clicking the saturate button doesn’t affect anything for me

Could you give me a little more info about your setup? I tested this with both Metal and OpenGL and didn’t get the bleeding.
What model of Mac are you using? Does it use the Intel chip or the Apple Silicon one?

It’s a 2022 MacBook Pro with Apple’s M2 chip. The visual problem is also occurring on an iPhone 13

Here’s footage of the behavior on my Mac:

Thanks Tenny,
Could you also give the Display DPI settings you’re using on your laptop? You can get them in your system settings

2560 × 1600
Built-in Retina Display