Dekopon - (Mostly) Fullspeed 3DS Emulation on Nintendo Switch

fildicio96 · 2026-07-30T17:54:48+0100

PalindromicBreadLoaf said:
Both of those will be in the next update and should be super easy to implement. Alongside maybe a 3D UI for those that use that feature.

It may be because a lot more of the shaders are cached on the device, so they need to be replayed before starting a game rather than computed during game time. I could make an option to turn of disk cache, but that'll make games a lot more stutter-y. Also I never had 5 second loads. Mine have always been slow. Maybe SD Card speed?

3Beans port incoming when?

I'm looking into this issue now for anyone running into it. Apologies for the worse performance. If anyone could say which update it was that decreased performance in these games it would be very helpful for my debugging.

I found the version that broke it is the v2.0.0, not the release candidate which I just tried, the Async GPU made first crash pokemon oras and then the second time the game I loaded the game it worked.

One thing I want to underline is that there wasn’t any performance boost with the Async GPU on version 2.0.0-RC1

Yesterday I used version 1.3.0 which was working as well

So I’m pretty sure is the latest version you uploaded which had the bug.

Thanks!
@PalindromicBreadLoaf

babthedog · 2026-07-31T02:20:30+0100

Hey there. Amazing work. I found a minor issue. In ocarina of time 3D while looking at the sun ( or when a lens flare is created ) the frame rate drops really low, which is weird since it's mostly a consistent 30 fps. Any changes to the resolution or the enhancements don't help, for me a least. Thanks.

PalindromicBreadLoaf · 2026-07-31T03:08:35+0100

babthedog said:
Hey there. Amazing work. I found a minor issue. In ocarina of time 3D while looking at the sun ( or when a lens flare is created ) the frame rate drops really low, which is weird since it's mostly a consistent 30 fps. Any changes to the resolution or the enhancements don't help, for me a least. Thanks.

There’s some WIP stuff behind the scene to fix some of the performance issues introduced by the latest update. Hopefully they can fix the issue. Are you playing with right eye disabled? If not that could help some.

kazenohibi · 2026-07-31T04:43:15+0100

Updated from 1.3 to 2.0 pre-release.

I had to delete the shaders first because games weren't booting after this update.

- Kirby Triple Deluxe: I noticed shader compilation is faster. Before this update, I was considering lending my shaders to another person so they could play this game without so many hiccups. Now I don't think it's necessary to do that.

- Smash Bros. for 3DS: Since a very early update, this game may crash at random (not while idle). With this update, it didn't crash at all, but on three occasions the game froze for several seconds with CPU 3 at 100%. Then it continued as normal, although it took a little while to recover. Once it happened during a loading screen, and twice during Smash Run. Perhaps these are situations where it used to crash before. I also noticed smoother shader compilation.

After reading some comments, I'll stay on this update for now.
(Clocks used: 2400/921/2300, x3 and x2 resolution. No right eye.)

BETA215 · 2026-07-31T05:05:13+0100

Awww... playing Animal Crossing, at a random point in the game the whole emulator freezed. HOS kept working, as every other overlay and submodule. I guess I'll refrain from playing any games where a crash or a freeze will involve losing hours of progress, at least for a significant period of time.
Hey, this emu is amazing already for what it is, so I can't complain much!

Dekopon - (Mostly) Fullspeed 3DS Emulation on Nintendo Switch

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