[BUG] Very High CPU Usage

[helloar14]

Validations

• I have checked for similar bug reports and could not find any.
• I have tested and confirmed that this is an issue in an official branded build.

Describe the bug

At the moment, running Session with no Virtual Spaces, hidden UI, and no model loaded takes 33% CPU vs 13% CPU took by VTube Studio when no model is loaded and webcam tracking is disabled (i3 9100F).

Reproduction

1. Open Session, delete all virtual spaces, and hide UI.
2. Open VTube Studio, and disable webcam capture.

System Architecture

x86_64

Operating System

Windows

Version

0.8.3

Logs

No response

Additional Context

No response

[LunaTheFoxgirl]

This is planned to be fixed in 0.9, the reason for the high CPU usage is due to the prior Inochi2D implementation being very paranoid about the outside app messing up its state, so it has a lot of unneeded state resets built in to keep the internal draw state valid.

For 0.9 I plan to just set up absolute neccesary state at scene start and then assume state won't get messed up by the developer.