Zelda OoT, MM - 20fps on Tegra 4

[Sf1]

Hi,

Both games runs at 20fps on Nvidia Shield.
20fps at 320x240 resolution and the same 20fps at 1280x720. That's strange.

What is your framerate?

[littleguy]

All that means is that the GPU isn't the bottleneck.  Which video plugin are you using?  What is your frameskip setting?

[Sf1]

Any plugin, glide or Rice. Hires textures or not. Fps in zeldas is always 20fps.
Frameskip is off.

Golden eye 007 15-20 fps also.

[littleguy]

Did a previous version run faster for you, or are you just surprised it's not higher?  I believe some ROMs put explicit limits on FPS.  IIRC Mario 64 limits to 30FPS.  Maybe something similar here.  Do you know which version/country ROM you are using?

[Sf1]

I dunno about wich version. Perhaps US.
I just surprised about 20fps on powerful device. And just want to known if it's tegra 4 specific problem or n64 android emulation in general.

There is any way to unlock that limit? On pj64 PC I always put 60fps.

Fyi, even with 20fps both games (except goldeneye) are very playable.

[beansta]

Thats a bit strange. I dont know the shields specs but i assume its more powerful than what im using (samsung gt i9305 @ 1.7ghz quad) and apart from SSB which for some reason struggles to run >20fps without frameskip (possibly because of the texture packs im using) everything i throw at it runs at a near constant 50.

[Sf1]

Hmmm... Zelda's n64 framerate is locked to 20fps NTCS and 18fps PAL.
F-Zero is up to 60fps like a real game on n64.

100% sure that the Mupen64plus AE following this lock.
Any way to unlock it?

I found something:

Yes, there is a frame limit set for wave race in the data file. Edit the following file:
/Android/data/paulscode.../data/gles2n64rom.conf

Go to where it says Wave Race 64 and delete the line that says "target FPS

Gonna test that today and back with the results.

[Sf1]

Doesn't work. Seems that there is some FPS limit on the emulator itself.

[littleguy]

I assume you tried it with the gles2n64 plugin... that's the only way that config file will have any effect.

[Sf1]

Yes, gles2n64. 20 fps in Zeldas and 30 in Mario 64.

[Sf1]

Any news, any fix? Even RetroArch have same problem...

[littleguy]

The 20 FPS limit is built into the rom itself.  That was the speed it ran on the original console, and it seems that a lot of its internal logic is dependent on that specific framerate.  So it's not something that can be changed.

For all zelda games, be sure that frameskip is turned off.

[LecktheTech]

The 20 FPS limit is built into the rom itself.  That was the speed it ran on the original console, and it seems that a lot of its internal logic is dependent on that specific framerate.  So it's not something that can be changed.

Wouldn't it be possible to hack the ROM and multiply/divide/ect the logic for movement?

[xperia64]

Probably, but I haven't seen other n64 emulators with FPS hacks. Not really a priority in my opinion.

[LecktheTech]

Probably, but I haven't seen other n64 emulators with FPS hacks. Not really a priority in my opinion.

Yeah, 20 is smooth enough, what i hate is sound and video lag. A little i can take, but a lot = adjust settings