Using Cheat Engine I have observed that turning off the 3D mode in MHGen and MH3U changes the byte at “citra-qt.exe”+61B230 to 0x42. Turning it on changes it to 0x22. MH4U and MH4 present 0x22. Obviously there is no way to change it but you see the pattern.
I was unable to freeze the value to 0x42 in either game since it’s constantly being written to by one instruction and nopping it makes the viewport freeze. Audio continues to play however. I’m not knowledgeable enough to further debug this but perhaps sb with more experience can investigate, it seems promising at the very least.
Using Citra Canary HEAD-2d30c5d.