BareGamer
There is this really old Sonic fangame (https://gamejolt.com/games/sonic3d/28626) that I tried to launch with d3d8to9. It is fine at first, but instead of loading into the gameplay normally, it looks like this: <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/b3a0b840-2a66-4e11-82d9-9d21dbae83df" /> Here's how it should look(actually it renders a bit incorrectly because some of the image is cut off, the reason for which might be apparent later. This problem also doesn't happen in wine) <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/eb11f695-fd96-424d-b2a6-9713da0f9c3f" /> I suspect that the reason why is because it is doing funny things with display resolution(and vsync), possibly to make the intro video seem fullscreen, which can be seen if msi afterburner is running. I also did an apitrace capture. It does this in the first frame <img width="1431" height="203" alt="Image" src="https://github.com/user-attachments/assets/9b41b46f-5951-4615-ad51-94e1dc0d4a29" /> Later it does this, trying to set the viewport to 6256 * 10240 <img width="818" height="102" alt="Image" src="https://github.com/user-attachments/assets/296870e2-754f-4118-8886-c722880afea6" /> And this is the present at the end of the frame. Maybe this is the reason why the screen is cut off. <img width="1677" height="57" alt="Image" src="https://github.com/user-attachments/assets/80d7b6b6-b7d2-4262-823f-97c1105ec104" /> Interestingly, after entering a level, the screen fixes itself. Which also breaks apitrace <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/1bc9ad01-d2da-44de-b754-5c3b8b39e4c5" /> I will attach the apitrace file just in case https://drive.google.com/file/d/1RB-HlATH2usqNd8s2yQ-BYFefXp8tBiO/view?usp=sharing