duplicate of #7105

I originally wasn't able to repo on my mac but many users with nvidia graphics were. However at one point i did find an internal build that could and just added a clamp to the final output as a workaround

duplicate of #7105

I saw that issue, but the video showed a different looking bug. I don't see any lines on my side and I don't experience the screen going black. I can get the artifacts to take up the whole screen if I mess with Bloom scaling, but they still have a flashing effect rather than blanking the whole screen.

Bug reproducible? YES - frequent artifacting, easy to reproduce

Is there a repro I can get my hands on? Without repro, there is not much we can do.

I have a repro using this example in WebGL mode (WebGPU does not reproduce the issue for me). I have a fix / workaround, but this is only a problem with sphere / disk area lights, which you likely are not using.

Bug reproducible? YES - frequent artifacting, easy to reproduce

Is there a repro I can get my hands on? Without repro, there is not much we can do.

I have a repro using this example in WebGL mode (WebGPU does not reproduce the issue for me). I have a fix / workaround, but this is only a problem with sphere / disk area lights, which you likely are not using.

I've made one here: https://playcanvas.com/project/1326102/overview/bloom-artifacts--black-squares
I just took the basic cube example, tossed in the camera frame script, turned on Bloom, and I can see the black square artifacts.

Full disclosure - this is not the exact camera frame script. I could not make ESM work on my project, so this script is result of adapting it to the legacy format, there's a chance I made a scripting error.

I have 3090 as well, so decided to give it a try.

With the given example project with a cube, I could not repro on Win11. Both Firefox and Chrome do not have black box artifacts.

However, I was able to repro under Ubuntu (WSL).

Steps:

• Launch WSL
• download, install and launch Chrome:

wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
sudo dpkg -i google-chrome-stable_current_amd64.deb
sudo apt --fix-broken install
google-chrome-stable

Running Chrome without a sudo might throw some errors to the WSL console about failing getting access to Vulkan drivers. You can avoid those with sudo. However, the black box is there regardless, so the issue is probably somewhere else.

I cannot repro on Win 11 RTS 2070.
@Christopher-Hayes - are your drivers up to date?

I cannot repro on Win 11 RTS 2070. @Christopher-Hayes - are your drivers up to date?

Yeah, I'm on 570. Which I realize with nvidia is not necessarily a good thing. 😅

NVIDIA GeForce RTX 3090
Driver Version: 570.124.06
CUDA Version: 12.8

I am on ubuntu + wayland. I can try windows, and see if it's gone.

Okay, so I can confirm like LeXXik did, that the bug does not happen on Windows. On both Firefox and Chrome on Windows, there is no artifacting.

Here's the WebGL report for the same computer, but Windows instead of Ubuntu.

This probably isn't helpful, but I did look at other engines to see if I can find instances of the same bug. Babylon, THREE, Bevy, and Filament are all showing bloom without artifacts for me.