Hacking How to change Wii U software internal resolution?

[Goku Junior]

Hi to all!, thanks for reading! I opened this thread to ask about Wii U Software internal resolution, how to change it by any other one...
If you don't understand what i'm saying exactly I will put an example:
We have New Super Mario Bros U, according to Digital Foundry it runs at native 1280x720, now I would like to change that resolution to another one, let's say 1920x1080, how can I do that?

Of course It's not possible legally, we need to look into the internal files of the game, I have asked this before and this is all the information I have:

It's all in coding, you basically need to find the floats that specify the resolution in the program's RPX (or at least that's how Matt did it with all his TCPGecko stuff).

So, If I understand correctly he says that the Resolution stuff is in the game .rpx (I'm using Nintendo Land, not NSMBU, that was just an example, but I think all games .rpx have the resolution stuff in the same place)

Nah, that's different, you need to use Dumpiine to get it from your console and then you can disassemble it (or try digging through memory to try to find it, I wouldn't be the one to ask how to locate it). You might be able to patch the one RPL that handles TV output

RPLs are from OSv11 (7th down), basically all the dynamically linked libraries you can call, Cafiine patches FS functions in coreinit so theoretically you can patch anything that's loaded. Also, yes, games have to set their own resolution and framerate, that's why Mario Kart 8 and Splatoon are 720p60 whereas others can handle 1080p

Yeah, I can try to dig up the topic.

I didn't understand very well this part, but it seems we can also edit the frame rate of a game!
I extracted OSv11 from Nintendo servers and got a lot of .rpl files, including the graphics one like gx2.rpl and coreinit.rpl, but I don't have any idea what to do with them ...

Nah, you need to use TCPGecko to find the address it's at and then patch it at launch. Also yes, that's what I've been using for a while. You can use UWizard to download the title

That's all the information I have about this, I tried a lot but i can't do anything, maybe someone that has a lot better skills than me can help with this

 

[Kakkoii]

https://gbatemp.net/threads/tutorial-how-to-decompress-and-repack-rpx-rpl-files.399934/
https://gbatemp.net/threads/ida-pro-wii-u-loader.382433/

 

[Goku Junior]

https://gbatemp.net/threads/tutorial-how-to-decompress-and-repack-rpx-rpl-files.399934/
https://gbatemp.net/threads/ida-pro-wii-u-loader.382433/

Thanks for your answer!, I'm currently downloading Cafe SDK 2.13.12, I now have rpl2elf.exe, I just need
makerpl64.exe!
A now going to the IDA part... I tried that before but it doesn't work, IDA doesn't even recognize Wii U's rpx/rpl files... (Yes, I'm using @aerosoul94 Wii u loader, but it doesn't work for me)
Here is a screenshot:

And if I force IDA to open the .rpx file it will show a lot of errors and finally will say this:

I think the IDA Wii U Loader is installed fine:

What's wrong ...? Thanks for reading!

 

[Kakkoii]

Thanks for your answer!, I'm currently downloading Cafe SDK 2.13.12, I now have rpl2elf.exe, I just need
makerpl64.exe!
A now going to the IDA part... I tried that before but it doesn't work, IDA doesn't even recognize Wii U's rpx/rpl files... (Yes, I'm using @aerosoul94 Wii u loader, but it doesn't work for me)
Here is a screenshot:View attachment 40031

And if I force IDA to open the .rpx file it will show a lot of errors and finally will say this:View attachment 40032

I think the IDA Wii U Loader is installed fine: View attachment 40033

What's wrong ...? Thanks for reading!

Use rpl2elf and open the elf with the IDA.
makerrpl64 will be in the sdk.

 

[OriginalHamster]

That would need rework the textures because all the assets are fixed in a certain resolution, no?

 

[Kakkoii]

That would need rework the textures because all the assets are fixed in a certain resolution, no?

Textures are sampled for each pixel on the screen that lay over the piece of geometry that has that texture. A texture that is the same size on screen at 720p isn't going to look any blurrier being the same size on a 1080p screen, in fact, due to sampling quality increase, it will look slightly better.
It's when you want to make better use of that resolution, or scale up or look closer at a texture in a game that you want higher resolution textures for those assets. But regardless, simply rendering the game at a higher resolution will reduce the aliasing (jaggies) around rendered geometry, which is a good enough benefit itself.

So while it helps to have higher res textures to take advantage of the higher resolution, it is not needed.

 

[Goku Junior]

Use rpl2elf and open the elf with the IDA.
makerrpl64 will be in the sdk.

OK, so I converted the RPX file to .elf , IDA now launches it (With some errors, but it shows data), It asked me if I should use it like a PPC type or a binary one, I choose PPC since the Wii U CPU is PPC (I Hope it is right)
This is IDA now:
What should I do now?

EDIT: I think the thing is fine, I searched the word "Nintendo" and find some text related from Nintendo SDK (However no luck in the resolution part...)

 

[Kakkoii]

OK, so I converted the RPX file to .elf , IDA now launches it (With some errors, but it shows data), It asked me if I should use it like a PPC type or a binary one, I choose PPC since the Wii U CPU is PPC (I Hope it is right)
This is IDA now: View attachment 40047
What should I do now?

EDIT: I think the thing is fine, I searched the word "Nintendo" and find some text related from Nintendo SDK (However no luck in the resolution part...)

You didn't install the WiiU IDA plugin properly then, a "Wii U" option should show up when you choose to open the file. Launch the 32bit version of IDA, not 64bit. And the .ldw file should be in C:\Program Files (x86)\IDA 6.5\loaders\

 

[Goku Junior]

You didn't install the WiiU IDA plugin properly then, a "Wii U" option should show up when you choose to open the file. Launch the 32bit version of IDA, not 64bit. And the .ldw file should be in C:\Program Files (x86)\IDA 6.5\loaders\

Hm, the wiiu.ldw is in "C:\Program Files (x86)\IDA 6.8\loaders", I think it is correctly installed, however I was lauching the 64Bit version all the time, I will try with 32bit now...
EDIT: Are you reffering at this, right? @Kakkoii

 

[Kakkoii]

Hm, the wiiu.ldw is in "C:\Program Files (x86)\IDA 6.8\loaders", I think it is correctly installed, however I was lauching the 64Bit version all the time, I will try with 32bit now...
EDIT: Are you reffering at this, right?View attachment 40078 @Kakkoii

Yep that option.

 

[Goku Junior]

Yep that option.

OK!, It seems now it's all working correctly!, however I didn't find anything about the resolution of the game, I tried to search by the terms "720" "1280" or even writing "Resolution" but I didn't found anything , Curiously I searched for "Nintendo" and this was all I found:
Do you know where to search the resolution part? (I think we are pretty near of it )

 

[Kakkoii]

OK!, It seems now it's all working correctly!, however I didn't find anything about the resolution of the game, I tried to search by the terms "720" "1280" or even writing "Resolution" but I didn't found anything , Curiously I searched for "Nintendo" and this was all I found: View attachment 40079
Do you know where to search the resolution part? (I think we are pretty near of it )

GX2SetTVScale ,GX2CalcTVSize, GX2SetTVBuffer are the functions you want to look at, most likely the first one. But tbh I think this is far beyond the scope of your modding knowledge considering the types of questions you've had to ask and problems faced already. IDA won't modify the file for you. It's beyond my scope too, so you'd have to ask someone else.

 

[Goku Junior]

GX2SetTVScale ,GX2CalcTVSize, GX2SetTVBuffer are the functions you want to look at, most likely the first one. But tbh I think this is far beyond the scope of your modding knowledge considering the types of questions you've had to ask and problems faced already. IDA won't modify the file for you. It's beyond my scope too, so you'd have to ask someone else.

OK!, thanks for all! I will check these functions!, I know little to nothing about all of this, but I really want to change these things for fun and to see how the console reacts to these changes (FPS drops, better resolution with less jaggies and all of that), thanks again! and I hope someone with more skills try to help us so we can finally get this working! .

EDIT: By the way, I found this!


EDIT2: I was searching in internet for the Rendering values and I have found this!: