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 Post subject: Re: component wii question
PostPosted: Fri Apr 19, 2019 4:50 am 


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Joined: 30 Jan 2016
Posts: 369
Syntax wrote:
Swiss looks like a pain to run via wii.

It's ok with Wii Swiss Booter. I used a Wii for development until I got the GameCube component video cable.


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 Post subject: Re: component wii question
PostPosted: Fri Apr 19, 2019 6:51 am 


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Joined: 09 Aug 2017
Posts: 1245
Location: Australia
The only thing stopping me from trying it out is the need to install a mIOS.


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 Post subject: Re: component wii question
PostPosted: Fri Apr 19, 2019 2:00 pm 



Joined: 19 Jul 2017
Posts: 1427
Syntax wrote:
Swiss looks like a pain to run via wii.

Cant wait for someone to port all these fixes extrems has made to the Revolution SDK and update homebrew ect.

I wasn't able to get Swiss to run on my Wii at all; every method I tried just resulted in the console rebooting back to its main menu. :/


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 Post subject: Re: component wii question
PostPosted: Sun Apr 21, 2019 12:47 pm 



Joined: 30 Mar 2019
Posts: 11
Somebody made a cheat code for Mario Kart Wii to implement the 480p fix. Haven't tried it myself yet, but apparently it works:

https://www.mkwii.org/showthread.php?ti ... 94#pid1994


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 Post subject: Re: component wii question
PostPosted: Sun Apr 21, 2019 7:54 pm 



Joined: 07 Apr 2016
Posts: 1307
shroom2k wrote:
Somebody made a cheat code for Mario Kart Wii to implement the 480p fix. Haven't tried it myself yet, but apparently it works:

https://www.mkwii.org/showthread.php?ti ... 94#pid1994

Wow, really cool! I'll have to join that forum.


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 Post subject: Re: component wii question
PostPosted: Thu May 02, 2019 9:39 pm 



Joined: 22 Sep 2017
Posts: 55
Can someone clarify (in laymen's terms) what the issue is with stock 480p output on the Wii? Am I to understand that progressive scan on a stock Wii is broken? Would I be better off using 480i S-video if I'm playing on a CRT? And does this affect GameCube games output at 480p as well? Sorry for the barrage of questions.


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 Post subject: Re: component wii question
PostPosted: Thu May 02, 2019 9:50 pm 


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Joined: 30 Jan 2016
Posts: 369
GojiFan90 wrote:
Am I to understand that progressive scan on a stock Wii is broken?

No.
GojiFan90 wrote:
Would I be better off using 480i S-video if I'm playing on a CRT?

No.
GojiFan90 wrote:
And does this affect GameCube games output at 480p as well?

Yes.


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 Post subject: Re: component wii question
PostPosted: Mon Jun 03, 2019 2:19 pm 



Joined: 11 Apr 2019
Posts: 2
Here are some photos (fixed/original) of my 640x480p LCD displaying Mario Kart Wii both with and without the 480p fix. This is great because the 1:1 pixel output allows you to see the differences at a sub-pixel resolution.

It's best if you download full size photos and compare them in an image viewer rather than your web browser.

Places to look for differences
1. e of Channel
2. inside the a of Back
3. glasses frame on my Mii
4. Ms of Main Menu

How it appears to the user
- fixed: graphics are pixel aligned horizontally
- original: graphics are not pixel aligned horizontally

cropped photo album
https://imgur.com/a/Ef02mmz

full size photo album
https://imgur.com/a/R0k3igo

fixed: single pixel wide glasses frame
Image

original: double pixel wide glasses frame
Image

fixed: m starts on pixel boundary
Image

original: m starts half way through a pixel
Image


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 Post subject: Re: component wii question
PostPosted: Sat Jun 15, 2019 1:21 am 



Joined: 08 Mar 2017
Posts: 921
@Extrems:
Is the fix just a single I2C write by chance?


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 Post subject: Re: component wii question
PostPosted: Tue Jul 02, 2019 9:34 am 


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Joined: 21 May 2013
Posts: 209
Extrems wrote:
Deflickering (digital, vertical low-pass filter) in 480i isn't incorrect, is completely intentional, and applies to 99% of GC/Wii software.

A SDTV (analog, horizontal) low-pass filter applied to EDTV is incorrect, and the later Wii revisions fix this (allegedly).

A SDTV LPF applied to EDTV roughly halves the horizontal resolution.

Has anyone actually confirmed that the later Wii DAC's fix this issue? Has anyone tested each of the four DAC revisions with and without Extrems software fix?

I mean if Nintendo did fix this issue in hardware with the later DAC revisions, then Extrems fix shouldn't make any difference to the picture quality, yet ths comparison image shows that the GameCube component cable is still better than even the later RVL-101 revision Wii:-
Image

Extrems wrote:
It's analog bandwidth. There's a SDTV LPF inappropriately applied to EDTV.

So between the incorrectly applied low-pass filter on 480p output (That requires all homebrew to be recompiled) and the deflicker filter (Which is pretty much useless and detrimental on modern TV's/Scaler's which have to deinterlace anyway) would it not be a worthwhile mod to use a microcontroller (Attiny/PIC) to intercept the I2C bus for the AVE-RVL DAC and write our own configuration values that fix the 480p LPF and can optionally disable the deflicker filter and perhaps even offer the option to force RGBHV? (Would need to connect the unused HSYNC and VSYNC pins to the AV out port) It would just seem to make more sense to me if we fixed this in hardware, rather than have to force the video mode in software. You could perhaps even have the microcontroller connect to one of the GameCube ports for a rudimentry 'blind' confirguration option using buttons.


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 Post subject: Re: component wii question
PostPosted: Tue Jul 02, 2019 1:40 pm 


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Joined: 30 Jan 2016
Posts: 369
Deflickering is applied during the EFB to XFB copy by the GPU. You can't intercept it.


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