crt-pi shader users - reduce scaling artifacts with these configs in lr-mame2003, lr-fbalpha, lr-nestopia (and more to come)

Riverstorm

A temporary workaround of what changed and needs to be modified in the script can be found in this thread in the last post.

Here's a link to the script. You can use something like Notepad++ to make the modifications. It's only a few lines and it works well.

I could upload them. I think I have a few scripts modified for the mame2003/FBA and mame2003-plus/FBA changes using either the crt-pi or zfast shader.

sergioad

@dankcushions @Riverstorm thanks to both of you

fomt

Hello again. Last time I used these configs for my 1080p I didnt really know how to use them, i had ”core privided” to every game so I guess these configs never worked. 😵
Now i’m want to use them on a new install, and I have put them in the desire folders, and the shaders are working. If I change from ”core privided” to ”custum” in retroarch then I think the aspect ratio works to. Am I doing it correct? Should I have it on custom only or should I also have ”integer scale” on?
If yes, how do I set ”custom” as default? As now I have to change in every game. Should I edit retroarch.cfg?

fomt

Think I must change:
aspect_ratio_index = "22"
to
aspect_ratio_index = "23"

EDIT:
Yep, 23 works, custom must have been changed from 22 to 23

fomt

should I add "video_scale_integer =true" in /opt/retropie/configs/arcade/retroarch.cfg ?
@dankcushions

dankcushions

@fomt said in crt-pi shader users - reduce scaling artifacts with these configs in lr-mame2003, lr-fbalpha, lr-nestopia (and more to come):

should I add "video_scale_integer =true" in /opt/retropie/configs/arcade/retroarch.cfg ?
@dankcushions

no :)

fomt

@dankcushions No? What should I do then?
So then I guess integer scale should be OFF?

dankcushions

@fomt integer scaling is off by default in retropie, so you shouldn't have to do anything in that regard. i think you should scroll up a bit to see the recent discussions about retroarch's config changes. specifically: https://retropie.org.uk/forum/post/183831

fomt

@dankcushions ok, shall read. Red on another forum that they added a new aspect ratio to the index. so the custom 22 has moved to 23 instead.
So I just run in powershell:

Get-ChildItem 'f:\cfg\*.cfg' -Recurse | ForEach {
(Get-Content $_ | ForEach { $_ -replace 'aspect_ratio_index = "22"', 'aspect_ratio_index = "23"' }) |
Set-Content $_
}

then added them do the dirs in retropie, works great..

Riverstorm

@fomt - Integer scaling would interfere and takes priority over the custom viewports so you would want to leave it off. As @dankcushions pointed out it's probably off unless you turned it on.

You already found the index change but also make sure you're in .cfg files are in the correct directory /opt/retropie/configs/all/retroarch/config/MAME (0.78) or /opt/retropie/configs/all/retroarch/config/MAME 2003-Plus. That was a change that happened at some point too.

If they are in the correct directory and you're using the correct index it will automatically show Custom due to every .cfg files basically is a custom viewport with a shader.

If you it doesn't show Custom but the shader or an incorrect shader is working then it's probably been enabled on another level like the global, system or ROM. It shouldn't be set in core as these custom configs are core level.

I guess also it might show Custom but be incorrect due to integer scaling. Basically in certain scenarios the video options don't display accurately depending on combinations of options set or also some backdrops will force resolution changes too.

fomt

@Riverstorm Thank for the info
@dankcushions On another TV the screenmode is 1360x768. Tried to create cfg's with the script but I only got this in the config files,

# Auto-generated crt-pi.glslp .cfg
# Place in /opt/retropie/configs/all/retroarch/config/mame2003/
video_shader_enable = "false"

Do I have to change something in the script?
Or if you have time to create a zip with 1360x768 I would be thankfull

EDIT:
It appears that my TV can handle 1366x768 resolution, so I will download those configs instead.

omitrix02

@Riverstorm Could you please upload those modified scripts for the zfast shader, it'd be a real help.

Darksavior

This post is deleted!

Riverstorm

@omitrix02 - Here's a download link to the script files. It's been quite a while since I used them but they should still be valid. There's 8 files in the zip.

crt-pi - mame2003
crt-pi - mame2003-plus
zfast - mame2003
zfast - mame2003-plus

I modified the scripts so they could also be used for mame2003-plus. They are identical cores except for a few hundred games. Mostly mame2003-plus exclusives but there's also around a dozen or so that are 2003 only.

If a game is not in one of the resolution_db files (as they are getting older now) you can add an entry fairly easy by looking at what information is needed. It's a flat text file, one game entry per line and most of the fields are unused.

Another option is to find a clone or parent ROM .cfg file that has already been generated for the core and just copy/rename it. For example you can easily use the Donkey Kong .cfg file for Donkey Kong Remix, etc.

The other 4 files in the archive are just batch files to create both a 720 and 1080 set of cfgs at the same time. You can modify the batch file and add/remove the resolutions you would like to use for your setup. They aren't needed though if you prefer to just run python script from the command line.

Also I haven't updated FBA in a while (still running lr-fbalpha) so I don't know the exact path changes for new FBNeo core rename or I would modify it.

omitrix02

@Riverstorm Thanks for the scripts, as well as the detailed explanation, but I'm getting the same issue when I was editing the script myself: when using the zfast shader alongside curvature, the resulting configs will have completely empty lines. This only occurs with the zfast shader and curvature, as crt-pi works perfectly in all cases and zfast works when using 1920x1080.

Riverstorm

@omitrix02 - Ok, I am getting the same issue using the curvature parameter.

From what I can tell something in the last commit (c89aee3) that was meant to correct a curvature issue broke it. Maybe @dankcushions can take a look.

ecto

@Riverstorm Hi, Can I use your script to mass-change the shader and resolution settings of my already installed Bezelproject game cfg files?

I couldn't look into the script because the download link has expired...

Thanks!

Riverstorm

@ecto - I don't think it's possible or at least not easy. You can generate a new set and it shouldn't be to hard doing a compare of old and new folders to pull a new set of cfgs named the same. If you're using custom resolutions on a per game basis for bezels I don't see any easy way.

Here's a new download link to the files for you to take a look though. I made a few more modifications.

One set for the crt-pi shaders and one for the zfast shaders. Also in the zip is the resolution_db files. You only need to install Python and they should work.

crt_pi_configs.bat
crt_pi_configs.py
zfast_configs.bat
zfast_configs.py

I modified the scripts so they could also be used for mame2003 or mame2003-plus. They are identical cores except for a few hundred games. Mainly mame2003-plus additions but there's also around a dozen or so that are mame2003 only.

I also added FBNeo but left FB Alpha for those still using the older core.

If a game is not in one of the resolution_db files (as they are getting older now) you can add an entry fairly easy by looking at what information is needed. It's a flat text file, one game entry per line and most of the fields are unused.

Another option is to find a clone or parent ROM .cfg file that has already been generated for the core and just copy/rename it. For example you can easily use the Donkey Kong (dkong.cfg) and modify it for Donkey Kong 3 (dkong3.cfg), etc.

The other 2 files in the archive are just batch files to create both a 1280x720, 1920x1080 and curvature set of cfgs, for all the cores at the same time and then zip them up. You can modify the batch file and add/remove specific cores and resolutions you're targeting for your setup.

The batch files aren't needed though. If you prefer to just run the python scripts from the command line similar to below which would not be zipped up but in a folder only.

python crt_pi_configs.py mame2003 1920 1080

For the other cores you can replace mame2003 with the specific core you want. For the x (horizontal resolution) replace 1920 for y (vertical resolution) replace 1080.

For curvature just remove the resolution values and add curvature 0 like so:

python crt_pi_configs.py mame2003 curvature 0.

Core Names:
MAME 2003 = mame2003
MAME-2003 Plus = 2003plus
FinalBurn Alpha = fbalpha
FinalBurn Neo = fbneo
Consoles = consoles

iainjh

Hi

Riverstorm would you mind checking that download location, as it timesout :( TIA!

also could someone please re confirm the correct folder names in retropie/configs/all/retroarch/config for mame2003plus and for fbneo.

thank you so much, I'm running 1280 x 1024 and these scanline improvements have been so appreciated

iain

ecto

@Riverstorm Thanks for uploading the scripts and explaining them once again!

Regarding my provious question, I think I may have come to a solution:
The Bezelproject just downloads cfg files for each game containing a path to the bezel (like here dondonpachi):

input_overlay = "/opt/retropie/configs/all/retroarch/overlay/ArcadeBezels/ddonpach.cfg"

I will now just take your generated zfast_curvature cfg files and merge them into one file with something like

#!/bin/bash

cd 'bezelproject_cfgs'
for bezel_file in *.cfg; do
  zfast_file="zfast_curvature_cfgs/$bezel_file"
  cat "$bezel_file" "$zfast_file" > "merged_cfgs/$bezel_file"
done

(Mind, I haven't tested the script, just googled away and found a solution to merge two textfiles!) Use at your own risk and only with backed up data!

Last thing worth noting is, that probably my Rpi3b+ isn't fast enough for handling bezels and a shader... That's at least what I learned reading through this thread. But that doesn't matter: It's alway fun to have new project going! Also, this paves the way for a future Rpi4! ;)