MiSTer FPGA Forum

The good results on Mister mostly come out of HLG mode, which is more like an extension of SDR format. Maybe your monitor isn't so well set up for that? The output looks awful warm to me, maybe the color settings in Mister can help if you can't adjust it on the monitor side? My understanding is that Windows 11 uses HLG for its HDR mode so I’m not ...

hdr_max_nits=770 hdr_avg_nits=203: With these settings, Contrast TV control is a LOT more effective than with higher previous settings. With HLG adding contrast also adds color as well as brightness as if the contrast controls the exposure level. With DCI I can make the image too dark or too bright whereas TV contrast didn't do much at all previou...

Hello! This is a small guide on how to set up automatic backups for configs, saves and savestates. It's not a lot of work but you need to do some extra work to set it up. Before you proceed, here are the requirements: SSH access. Rclone configured and working (/media/fat/Scripts/rclone.conf). Consistent internet connection. MiSTer powered on at al...

I tested the test build you posted in discord. hdr_avg_nits doesn't work as far as I can see. hdr_max_nits works in hdr=2 DCI P3. On C2 it works best with Dynamic Tone Mapping set to Off. It's really interesting how it works. With color correction on TV, it's looking really good! I got it to look better than HLG to me. Glad to hear it's been usefu...

There is hdmi range mismatch happening on releases after HLG is moved to hdr=1. When hdmi_limited is set to 1 (limited) and my LG C2 hdmi range is set to Auto or Limited, black and white are crushed/clipped leading to off color. Setting hdmi range on tv to Full gives proper image, which is incorrect behavior. I tried MiSTer_unstable_20230104_1602a...

Thanks, Natrox. For SDR to HDR conversion, I've heard 400 and 1000 nits being tossed around, but I've also heard 550 and 4000, especially for HLG. I don't remember where I read it at the moment, it's just a curiosity, but I'd just like to exhaust that avenue before seeking other solutions. I tried those numbers on Retroarch and it enhanced both co...

That's very generous, how cool. I'd love to test a build, thanks! I wouldn't need OG mode 3 back if we could get regular HLG brighter, it might have potential. It's almost there. I'd say if people were having difficulty with 10000 nits we could try 4000 nits for the high figure. I wonder if a higher MaxFALL like 520-550 nits would do anything to b...

I am not sure what you are referring to. I have not made any changes to HDR recently, aside from moving HLG to hdr=1 and DCI P3 to hdr=2 (BT2020 was removed). I greatly appreciate your contribution of HDR and am sorry if I came off as harsh but there have been changes. To explain: When HLG was on option 3 it still registered as HDR10 on my TV and ...

Hi Natrox. I've a 128G SD card in my Mister and want to get a smaller SD card, like 32GB, cuz I moved all the games (/Games) folder to a USBKey (/media/USB0) If I run your script, will It only look at SD card at (/media/fat) and copy it to a new SD card, or will it scan for other attachments like my USBKEY?? Perhaps its a good idea to pull out my ...

@Natrox I don't know what happened to the HLG option, but now it's dim and colorless. No amount of tone mapping is even brightening it up. I guess the critics won, because It doesn't even look 'just' like SDR at this point, it's bland. Please don't do that to the DCI setting, leave it the way it is. It's Arcadish and I had been trying to get that ...

One thing I thought is can we do the inverse tonemapping in hardware (instead of a shader)? Itd be relatively simple to implement and would be done on the 240p output image of the core. This is where my knowledge bumps up against the hardware of mister and hdr implementation though so Id like to understand more. It may be possible but probably not...

Could you please explain video_gain_offset more? There is no real time adjustment menu so it's hard for me to wrap my head around. Sure. You have six numbers, two for each color channel. Each number can be between -2 and 2. The first number (gain) is a multiplier. So say you have "120" in the red channel (8-bit, 0-255), and you use a val...

Glad people are enjoying it! I am also glad I tried out Mathieulh's idea. Sorg merged it into the main branch today, so it should see release relatively soon. I am looking forward to more people trying it out. Hdr 1 and 2 options are obsolete for me now. Colors still look off and highs are still clipped on my C2 (better than before though.) But the...

Hello all, The PR with updated metadata has been merged. Additionally, I have submitted a PR containing an implementation of HLG HDR if the hdr option is set to 3. It was mentioned by Mathieulh as a potential better fit for MiSTer as it's designed to be backwards compatible with SDR. I have added it and am happy to report that it looks like SDR but...

Hello all, some major news. I researched HDR infoframes more and figured out that the one currently in-use is incorrect for BT2020. This explains color reproduction issues, as well as the incorrect whitepoint. I have constructed a new infroframe and made a PR for it: https://github.com/MiSTer-devel/Main_MiSTer/pull/721 Among the color space value f...

I'm out at the moment but I'll upload them later. In essence they are just the pure gamma presets but for sub-100. The files have a simple mathematical formula to generate them, you can recreate them in a few minutes. Hey sorry for going grumpy mode, I'm just not too hot about how a lot of good stuff just evaporate away in discord... Anyway, I'm h...

Ok so Natrox already uploaded a bunch of gamma profiles for dealing with dark low-mid tones in Mister discord days ago.... I sure wasted bunch of time making my own but at least I was on the right path. Discord being discord, I can't cleanly link to them here so just go look for them in there if you're interest... ¯\_(ツ)_/¯ I'm out at the moment b...

The colors look more off than if for example I set my Mac to Rec.2020 but don't set the monitor to Rec.2020 - which should be equivalent to what is happening here, right? Is the color space conversion definitely correct? It is, we're using the matrix from the official programming guide. Mapping to these color spaces does not mean we're able to cov...

I'm guessing this is basically taking the 8-bit color that is the end result of the scaler and then mapping that to colors in an HDR space? So all the filtering/masking is still baked into an 8-bit result before you translate it to HDR? That's right. It would be better to do the filtering in HDR space but it's simply not possible to do on this har...

I have a question, I would like to simply use this script, to "prepare" an SD card, then I can copy everything over myself on a device other than the mister itself. Hm, to be honest, it would probably be easier to just run Mr. Fusion again. If you need to prepare multiple MiSTers, you could image the SD after using Mr. Fusion and do it l...

Hi, I was the person who did the PR for HDR and color controls. The color controls are primarily meant for tweaking your HDR output in case you don't like the image. For example, if you use BT2020 you may want to increase gain on red, if you use DCI P3 you may want to dial down saturation, if you feel the picture is too dark you can reduce the cont...

HI Natrox I've just copied the mister SD card with your script: everything went well, I could even skip the contents of the games folder, I couldn't be happier! Just one question - or perhaps a proposal for next version: would it be possible to flag the entire games folder as not to be copied, instead of having to go through all of its subfolders ...

I am happy to announce version 0.2.0! The major change of this version is that I have added Neocaron's suggestion. The utility now asks you if you would like to filter out folders, and if you choose to do so, you are given a sorted list of folders that you can select/deselect for migration. Due to some constraints with how scripts are run via the M...

Mine won't detect my SD card. I'm using a sandisk Micro sd to usb converter, so I can't imagine it would be the converters fault. Would it be possible to add support for the sd card slot on the I/O Board? Edit: Does the SD card have to be formated as fat32 or anything? Mine is currently a corrupt MiSTer install :? Edit2: Formating it as FAT32 did ...

So it works absolutely great, I think it does an amazing job at creating additional sd cards and It's easier than mr fusion and faster, because everything is setup from the og card directly from the Mister with all my custom settings and content already! It's gonna be my new go to on that front. However since the usb 2 is very slow, we should have...

Happy to help! Let me know if you run into any problems, and also let me know if everything goes smoothly.

Like my work? Support me on https://ko-fi.com/natrox ! [Changelog] 2022-11-04 - v0.2.0 - Added functionality to exclude folders from the migration, users can pick which ones to skip from an optional menu. 2022-10-30 - v0.1.0 - Initial release. Original post: Hello everyone! I am happy to announce that I have released a new utility for MiSTer; the ...

Very helpful thread. I like the way i can have an open session to my mister. Can I load up games directly from SCP? or is that a stupid question. Im updating from SCP and dropping files in and out so got that far. I don't think you can, SCP is purpose-built for linear file transfer whereas games require random access. You can of course SCP to a te...