[Bug] Crash if a mod tries to get the projection matrix outside a level

Bug Description

When a mod tries to get the projection matrix outside a level this line causes a crash, because the player will be null.
https://github.com/isXander/Debugify/blob/f6e7580339f8a5774965a138de45bc6a96224256/src/client/java/dev/isxander/debugify/client/mixins/basic/mc267376/GameRendererMixin.java#L16
one mod that causes this is Vivecraft when in VR mode

How to Reproduce?

1. install vivecraft
2. enable vr mode (needs a headset, or NullVR mode selected in the settings)
3. game will crash

Expected Behavior

no crash

Version

Debugify 1.21.11+1.0

Fabric/Quilt Loader Version

Fabric Loader 0.18.4 for 1.21.11

Logs or additional context

https://github.com/user-attachments/files/24648496/crash-2026-01-15_17.37.57-client.txt

Has not been reported.

• I made sure this bug hasn't already been reported.

Is on most update to date version.

• I made sure I am using the most up to date fabric/quilt loader and mod version.

Start with src/client/java/dev/isxander/debugify/client/mixins/basic/mc267376/GameRendererMixin.java at the linked line, then inspect the attached crash log and reproduce the issue with Vivecraft in VR or NullVR mode. Done means requesting the projection matrix outside a level no longer crashes the game.