Homebrew [Request] f.lux for 3DS

[Aether Lion]

Is this possible? It'd be so amazing seeing how strenuous the 3DS can be on the eyes, y'know?

 

[Deleted User]

If it's possible to control the colors on the screen (I know the brightness can be configured to more than the options we normally have), perhaps an NTR plugin could be made if it's open source. I don't see anything of the sort on their page, however.

 

[Vondosaurusrex]

I feel like theoretically it should possible with an NTR plugin- we can already control screen brightness that way. The question is is whether or not the color temperature can change that way too.

If nothing else, such a thing would probably be n3ds only

Edit: Ninja'd

 

[Aether Lion]

I feel like theoretically it should possible with an NTR plugin- we can already control screen brightness that way. The question is is whether or not the color temperature can change that way too.

If nothing else, such a thing would probably be n3ds only

Edit: Ninja'd

It'd probably be a little troublesome to create such software but I think it'd be unique and open the way to others creating similar system-wide software like that.

 

[cearp]

I feel like theoretically it should possible with an NTR plugin- we can already control screen brightness that way. The question is is whether or not the color temperature can change that way too.

If nothing else, such a thing would probably be n3ds only

Edit: Ninja'd

changing the power of the brightness is very different to applying a color filter on the fly
@cell9 - is this possible do you think? reducing the blue light from the 3ds screen
(not asking you do do it! but if you think it is possible)

 

[Aether Lion]

changing the power of the brightness is very different to applying a color filter on the fly
@cell9 - is this possible do you think? reducing the blue light from the 3ds screen

*Prays that cell9 can save us all*

 

[sweis12]

Why not just enable power saving mode?
Its not exactly the same, but it does change the temperature of the display.

 

[Aether Lion]

Why not just enable power saving mode?
Its not exactly the same, but it does change the temperature of the display.

Yeah but I mean a drastic change. Also time of day/possibly a button combo that can used anywhere config would be nice.

 

[RocketRobz]

Drawing a red transparent image on both screens might work.

 

[Aether Lion]

Drawing a red transparent image on both screens might work.

Would that be possible to do even in-game? Would it heavily cripple O3DS? Let's say you ran SSB with this?

 

[Joom]

If it's possible to control the colors on the screen (I know the brightness can be configured to more than the options we normally have), perhaps an NTR plugin could be made if it's open source. I don't see anything of the sort on their page, however.

https://github.com/jonls/redshift
There's this.

 

[Wolfvak]

changing the power of the brightness is very different to applying a color filter on the fly
@cell9 - is this possible do you think? reducing the blue light from the 3ds screen
(not asking you do do it! but if you think it is possible)

If we have direct framebuffer access you could always read the B value, substract x from it (make sure not to underflow!) and write it back.
Don't know whether NTR provides this level of access though, or whether we can perform these kind of operations in realtime.

EDIT: iirc, the 3DS' framebuffer is stored in a BGR24 format. That is, pixel 0 is Blue, Green, Red (varying from 0 to 255), then you have pixel 1 with its corresponding Blue, Green and Red values. Rinse and repeat for the rest (320*240 for bottom screen, 400*240 for top screen)

 

[cearp]

Drawing a red transparent image on both screens might work.

yeah but that is not flux, it just looks ugly, making everything reddish.
flux and stuff like it actually change the color, make blues less blue, not just make stuff red

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if you have direct framebuffer access you could always read the B value, substract x from it and write it back . Don't know if NTR provides this level of access

that's what i was trying to ask
I'm not sure how intensive something like that would be

 

[Deleted User]

https://github.com/jonls/redshift
There's this.

Ah, I wasn't aware. Seems to be a tad different from flux in that it works somewhat like the auto-brightness feature of the N3DS rather than based on the time of day. I bet both options would be good to have though.

 

[cearp]

so, just like taking screenshots, instead of reading that area we write to it...
it might not so hard actually.
location and time is not important really, just chaning the screen temp would be fine.
I'm not so sure if it is as simple as turning blue to black, it doesn't seem that simple, but i think this idea is possible if someone puts some work in

 

[Aether Lion]

so, just like taking screenshots, instead of reading that area we write to it...
it might not so hard actually.
location and time is not important really, just chaning the screen temp would be fine.
I'm not so sure if it is as simple as turning blue to black, it doesn't seem that simple, but i think this idea is possible if someone puts some work in

I have no experience in creating 3DS homebrew and so yeah I'm not the one for the job.

 

[Wolfvak]

that's what i was trying to ask
I'm not sure how intensive something like that would be

Shouldn't be too CPU-intensive, and even then you could always create it as a low priority thread in the background.

The main issue with this whole idea is: how much should we reduce the blue intensity?

There's no detector in o3DS and in n3DS it's locked away because only one process/service can access it at a time (so you'd have to disable qtm)

 

[Aether Lion]

The main issue with this whole idea is: how much should we reduce the blue intensity?

Create editable variables and let users experiment? I think it'd be different tastes for each users. Just like in f.lux you can set the levels. I mean it doesn't need to me near that complex.

 

[Deleted User]

The main issue with this whole idea is: how much should we reduce the blue intensity?

Create editable variables and let users experiment? I think it'd be different tastes for each users. Just like in f.lux you can set the levels. I mean it doesn't need to me near that complex.

Perhaps have a sort of 'safe' level low that you can't set it past, and then let the user decide how dim/bright they want it. I'm thinking in the way that flux has its lowest level, though as how you'd determine that, I'm not sure. Maybe use the built-in brightness scale as a guide for the low? I know it's not the same as color intensity, but it could still be used as a guide.

 

[Selim873]

I've thought about requesting this as well. I use it on everything possible. A lot less straining on my eyes when use my phone, laptop and PC after work every night.