Mupen64plus-gles2n64 - Small screen in the down left

[Kvitekvist]

Hello!

I have an issue with the Mupen64plus-gles2n64. The screen resolution is very small and the posistion is somewhere down left on the screen.

Very much like in this post:

https://retropie.org.uk/forum/topic/23313/solved-certain-n64-games-screen-size-issue

My configs:
Pi4 4GB
Using the latest test build: retropie-buster-4.5.19-rpi4.img

What I have tried:
Updated the emulator from source.
Setting the resolution in emulationstation pre-launch screen.
Also tried adjusting the size in the gles2n64 config file.

I am now back to default settings:
#gles2n64 Graphics Plugin for N64
#by Orkin / glN64 developers and Adventus.
config version=2

#Window Settings:
window width=640
window height=480
multisampling=0
auto resolution=1

#Framebuffer Settings:
framebuffer bilinear=0
framebuffer width=640
framebuffer height=480

#VI Settings:
video force=1
video width=640
video height=480
video stretch=1

Any advice on where I can make the correct changes so that this emulator goes fullscreen?

[quicksilver]

@Kvitekvist there are still some issues with mupen64plus on the pi 4. One of them is that gles2n64 isn't scaling properly (I think because it's not reading mupen64plus.sh correctly). Change your video mode in the runcommand menu to match the resolution you set in the gles2n64.conf file.

[Kvitekvist]

Thanks for the update. Sure I will give that a try. Which of the resolution settings should be changed in the file? There are 3 different ones:
#Window Settings:
window width=640
window height=480
multisampling=0
auto resolution=1

#Framebuffer Settings:
framebuffer bilinear=0
framebuffer width=640
framebuffer height=480

#VI Settings:
video force=1
video width=640
video height=480
video stretch=1

[quicksilver]

@Kvitekvist you can leave that file be. 640x480 should be fine. In the runcommand menu (launch a n64 game and when the runcommand prompt pops up press any button to enter the menu) then change the video mode for gles2n64 to 640x480 assuming your TV/monitor supports that resolution.

[Kvitekvist]

Thanks! I do get full resolution with that, but the screen is offset. Can I adjust the X Y posistion of the screen, or have it "fullscreen" to maybe automatically adjust/fit?

[quicksilver]

@Kvitekvist try changing video stretch to 0

[dankcushions]

i can confirm this issue. you can fix it by editing /opt/retropie/configs/n64/gles2n64.conf and setting

window width=1920
window height=1080

or whatever your screen is, but that's not the proper fix - it really should stay at low resolution and be scaled to fit the screen. i'm thinking about a fix now...

[floppes]

I am having the same issues with retropie-buster-4.6-rpi4 and a Pi 4 on my TV (1920x1080). When setting the N64 emulator to mupen64plus, the games are displayed very small in the lower left corner of the screen. Neither of the suggestions in this thread worked.
@dankcushions did you mean /opt/retropie/configs/n64/gles2n64.conf?

[dankcushions]

@floppes yes, sorry - edited my post.

unfortunately i don't have the motivation to fix this and would sooner focus our efforts on GLideN64, which is the only maintained HLE plugin for n64. if anyone else wants to have a go, i put some hints here: https://github.com/RetroPie/RetroPie-Setup/issues/3118

[Kvitekvist]

I can confirm that your solution worked. BUT performance took a heavy hit. As you mention, this is probably because the resolution being too high? I will also test performance and the GLideN64. Thanks for mentioning this :)

[Kvitekvist]

@floppes This could be because some games are already "optimized" on rom level.
In the same folder there is a file named "gles2n64rom.conf". Try to change the resolution for the games you have issue with if they have resolutions set in that file.

[quicksilver]

@Kvitekvist if your display supports lower resolutions change the window size in the gles2n64.conf file to 640x480. Then when you launch a game, enter the runcommand menu before the game boots and change the default video mode for gles2n64 to 640x480.

[Yobiwan]

This post is deleted!