Performance drop from 1.121

[Zuzon]

What happened?

Hello. started from v1.121 till actual version i found double FPS drop.
v.1.120:

v.1.121:

v.1.124:

Reproduction steps

Just use 'Hello world' sample

Sandcastle example

No response

Environment

Browser: Chrome 128
CesiumJS Version: v.1.121
Operating System: Ubuntu 22

[ggetz]

Hi @Zuzon, thanks for the report! There are several changes that went into the 1.121 release that could be the reason for the framerate drop you are seeing. Many of these were updates to the default settings for visual quality, such as turning MSAA on by default.

Curiously not everyone seems to be seeing this drop, so we may need more info about your particular system to determine why this is happening.

Would you be able to do the following to help us determine the root cause?

1. Visit webglreport.com and take a screenshot of your results
2. Use git bisect to determine the specific commit when the performance drop starts happening