How to port Shadertoy shaders to Balatro

[idle ermine]

I recommend reading this in an app like Obsidian that can view Markdown in a well formatted manner

[simple canyon]

I have GOTTA read this later hehe

for now, midday nap, lmao

I shall @simple canyon to remind myself, lol

[idle ermine]

oh yeah, forgot to mention, here's a tool i wrote a while ago to create a template shader

[open mango]

reading this layer

[clever thicket]

hey could you mayb compile this for linux? sorry for ping

nvm ill just use wine

[idle ermine]

ye

i can

[clever thicket]

alright y

thanks

[idle ermine]

https://github.com/TheBearodactyl/shaderinit
ok so
i'm lazy

[clever thicket]

lmao alr

i’ll compile it when i get time

wait could you not do some CI bullshittery

[clever thicket]

😭

can i do it for you and just make a PR

[idle ermine]

sure

[clever thicket]

alr

ill get auto windows, linux, and macos builds going

[idle ermine]

thanks 😭

[clever thicket]

no problem

lmao

[simple canyon]

I made another cool shader but I have no clue what I'm doing 😭 lmao I could just, like, port this, but idk how to get it to turn into the effect I want anyway, lol, bdjfbsdjfs
like, if I could just, like, translate "how dark is this shader" into "how much alpha does this have" then this'd work amazingly as an edition sndfhbsdjh

I'm good at making, like, static shaders, but I don't know how to actually turn them into "overlays" 🥲

hmm, maybe I still need to learn more about shaders themselves maybe, like, I'm not even entirely sure how I got it to look the way it does now, you know?

like, it'd be nice to get this "border" to go all around, instead of just being in that corner, but I'm not sure what is exactly creating it in the first place

the laser of calamity which appears for 2 seconds then dissapears, lmao

[simple canyon]

ok, this one's gotta be my fav one so far I think

[simple canyon]

I've made a couple cool things shader wise today, but like, I still don't know how I would flip this horizontally, lmao

[heavy bough]

Woah! that looks very cool!

[simple canyon]

thanku, hehehe :3

[heavy bough]

By the way, I know it's a dumb question, but was there any other shader you plan to port?

[simple canyon]

oh, I'm not sure yet, I've been trying to learn how to make shaders so that I could port one of these, I said before, my main issue is that I'm not exactly sure how to translate these into something that, like, takes the already existing values of a sprite? I guess? Idk, I guess it doesn't really make sense, I feel like I'm getting closer to an epiphany there soon, so I might end up adding another shader into my mod soon, hehehe

I do have one shader in game already actually, made it for an edition that I couldn't get working effectwise, hehe

this right here was my first ever shader I got put into balatro, and currently, is the only one, I like it, hehe

here's what all the cards on page 2 would look like :3

marble joker is a bit, uhh, hard to see with the shader it seems, lol, hehe

omg... I never realized my edition worked on the faces... awesome...

[heavy bough]

Ah. cause right now I was at some point trying to like make the jpeg shader but yeah I'm not experineced and of course held back from it

[simple canyon]

hmm, well, I don't know a ton myself, I only just started lol, but um, I would reccomend checking out Shadertoy if you haven't already! it's a site which has been helping me learn, you can see changes you make to shaders in real time and stuff, you can even check out other peoples shaders they've uploaded and see how they were made, granted, a lot of the cooler looking ones there are a tad complex, lol

https://www.shadertoy.com/

[heavy bough]

Well I did and of course I did find the shader I was looking for

but unforutnately I tried my best to convert it into the balatro code but gave me an error

https://www.shadertoy.com/view/McdSzl

this is the shader.

But I understand.

[simple canyon]

I wish I knew more about this stuff, sorry :<
maybe Bearodactyl can help you? she seems to know what she's doing here, I think

[heavy bough]

Well if she can then that's great

Also I probably need to learn how GLSL works considering I did learn a little with GLSL ES with Game maekr.

[idle ermine]

that seems to use channels
I'm not really aware of a way to use them for balatro shaders which is why my guide says "shaders with channels won't work"

[idle ermine]

gimme the code for this rq

[heavy bough]

OKay sorry for my delay but Ill give you the shader code.

This is the shader code I have.

[idle ermine]

nah you're good, if anything i should be the one saying sorry since it's been 2 days since you sent that 😭

[heavy bough]

I understand.

[idle ermine]

ok yeah it's bc it uses channels which balatro doesn't support as far as I know

[heavy bough]

Then is there a way to get it to work?

[heavy bough]

I mean even though this shader I found doen't have multiple channels

let me check

Yeah I think it's only one channel

[idle ermine]

it's the fact that it uses channels at all
you're trying to use iChannel0 which does not exist according to love2d

[heavy bough]

ooooooh.

Now I see.

So how do I fix this?

[idle ermine]

send the shadertoy link

[heavy bough]

ok.

wait. I think I already did that. https://www.shadertoy.com/view/McdSzl

unless you need a different shader or similar shader

[idle ermine]

oh i didn't see

lemme look at it rq

oh yeah this is just not gonna work
i don't even know if love2d is capable of using the webcam in the first place 😭

[heavy bough]

I'm not talking about webcam

try replacing webcam

with an image or video

the shader had the webcam as the default channel

it works than just the webcam

I discovered about this way before.

[idle ermine]

gimme a minute and lemme see if i can find a way to use the texture param on the effect function

[heavy bough]

Yeah, cause you never know that a shader actually had forgot to reset the thing, Heck even shadertoy allows you to edit the shaders.

Just make sure next time when you came across a shader that had a webcam as default make sure to click over to change from webcam to video or image texture.

[idle ermine]

yeah i think you MIGHT be able to find a way to use texture in place of iChannel0 with some tweaks

[heavy bough]

I mean I have 0 idea on how love 2D shaders mostly work but yeah. I think I see where you're coming from.

[idle ermine]

nevermind I've just had a big brain moment and found out I've just not read the love2d docs enough
substitute references to iChannel0 with texture in the effect function

lemme try a simpler jpeg one and see if i can replicate it using texture and I'll let you know

[heavy bough]

Huh, well tbh I just kinda wished I had more knowladge with shader work and such. but yeah, documentation is pleasure.

[heavy bough]

Okeydokey!

[idle ermine]

i need to read the docs more often

[heavy bough]

Woah.

[idle ermine]

it's definitely not exactly what it should be but that's just bc balatro

[clever thicket]

i was thinking abt making a shader that grayscales something

for an edition

but i gotta figure out how exactly imma do that

maybe i take the color of the pixel and then average out the color

to make a gray?

[heavy bough]

Late response but I understand.

[simple canyon]

sorry, I no longer have access to this, because I am a fool who seldom saves these shaders fdbsshbfjhfd I probs should tho, lol, I'll be back with a new one in like, 4 mins, lol

not hard to have this issue for me, lmao, as I can only ever seem to make shaders that have this issue lol

this all results from me having no idea what my numbers actually do I think, lmao, like, similar thing here, what if I wanted to turn this \ slash effect so that it was an X pattern?

so, I managed to get something with an issue close to the one from before here, like, I'd love for whatevers going on in the top left to repeat itself on all edges

before I forget, here's this last one as a txt file

[clever thicket]

it might be worth it to note that iChannel can be substituted for texture

i would probably take your tutorial and put it into the shaderinit repo as a readme

[simple canyon]

mhhh, how would I do this? sorry, new to this, not sure how to use the channel stuff yet

I have various joker sprites I could put in there, just not sure how to actually add them, lol

[clever thicket]

channel is just an input

in shadertoy ichannel can be anything

i believe if you backread a pinch they figured it out

[clever thicket]

here

[simple canyon]

hmmmm

how do I use this btw 😭 I managed to grab one of the textures they had already included, but

if the texture isn't a vec2 then what is it? and how do I use that in my coding stuffs?

[clever thicket]

i think there’s a special type

one sec

idrk about this stuff

[simple canyon]

I think I managed to figure it out, took some stuffs from another shader hehe

I needed, to, like, convert it, kinda

this is what I ended up with

also, another example of "my shaders keep picking a corner they like for some reason"

I attempted to change that to no avail, lol

[clever thicket]

??

its defined everywhere

@idle ermine sorry for ping but would you know anything abt this

[simple canyon]

uploading this here as a means of saving it, sort of, this is gonna be the next shader I try to port to balatro

this is the shader in action :3

over a "blue noise" background :3

[simple canyon]

so, this isn't working, it's erroring at line 8, any tips?

[clever thicket]

use texture2D

since texture is already defined you can’t use the texture function

texture2D is literally the same function

so

just do that

[simple canyon]

ahh, ok, so, replace "texture(texture,uv)" with "texture2D(texture,uv)"?

[clever thicket]

yes

[simple canyon]

hmmm still getting errors here :<

any idea what's happening here?

[clever thicket]

did you ever define uv?

or redefine it to balatro's def of it

[simple canyon]

Oh? I thought that the guide up top said that balatro already added uv on it's own?

[clever thicket]

no

its saying that the TEMPLATE has it already

i made the same mistake

[simple canyon]

ahhh ok

forgot to swap out fragCoord lol

[simple canyon]

its erroring on line 5 😭 everything up to there other than the commet was litteraly just copied fgxcfdxf

[clever thicket]

what error

[clever thicket]

extern MY_HIGHP_OR_MEDIUMP number dissolve;
extern MY_HIGHP_OR_MEDIUMP number time;
extern MY_HIGHP_OR_MEDIUMP vec4 texture_details;
extern MY_HIGHP_OR_MEDIUMP vec2 image_details;
extern bool shadow;
extern MY_HIGHP_OR_MEDIUMP vec4 burn_colour_1;
extern MY_HIGHP_OR_MEDIUMP vec4 burn_colour_2;

its probably not defined where this stuff is

[simple canyon]

hmm, so I need these put in my shader somewhere?

[clever thicket]

right after you define shader precision preferably

[simple canyon]

shader precision ?

[clever thicket]

what does your file look like

[simple canyon]

this is my file atm

[clever thicket]

you are missing so much

[simple canyon]

oh?

[clever thicket]

use this

[simple canyon]

I tried refrencing as much from the guide above as possible, lol asbfhjfbsjf

[clever thicket]

shaderinit hyperwave

run that

rename it to hyperwave.fs

then put your effect function over the one in the file the program made

[simple canyon]

uuuhm, how do I do this 😭 I got the exe downloaded, but running it does nothing for me

I try opening it and it just instantly closes

[clever thicket]

run it in terminal

it should be shaderinit.exe [shadername]

[simple canyon]

hagbhdbsjfs Idk what I'm doing here 😭 😭 😭 do I, uhh, do I need to put it in the same folder or something like that?

[clever thicket]

put it wherever you want

okay i need to focus on this fucking shader because im getting angry at it

[simple canyon]

my shader or yours? I don't know what's happening anymore, my parents are trying to talk to me about random stuff while I'm trying to make this work so I got, like, double headache rn lmaooo sorry if I misread things or whatever 😭

[clever thicket]

my shader

[simple canyon]

ok, I understand, lol, I believe in you

[idle ermine]

I'll make it a flag instead of a positional later and I'll make it so that you don't have to rename it

[clever thicket]

btw clamping 1.0 to 1.0 doesn’t work i dont think

the compiler doesn’t consider that using the var

[idle ermine]

it does actually, try it

[clever thicket]

i did

it made me wonder why i had a fucking mystery crash for 45 minutes

[clever thicket]

well i fixed it, but new issue, my shader pulls every texture in the joker atlas and that isn’t exactly good news

how do i make it pull just one

[simple canyon]

I just tried to copy some stuff from my other shader lmaoooo 😭😭😭😭

"the Whole Party is Here" edition

[clever thicket]

yeah this happens to mine

[idle ermine]

this actually looks pretty cool

[clever thicket]

i think this looks cool on my shader but it’s not what i want

[idle ermine]

that... what the fuck

[clever thicket]

and it’s making me angry

[idle ermine]

are you using debugplus's watch shader command or something else

[clever thicket]

i’m using it as an edition in the game

[simple canyon]

what's weird is, I have another shader which works fine that I copied from negative, and I copied the majority of my code for this edition from that one basdjhfbsjd

[idle ermine]

that is very, very, very weird

I've been using shaderinit for just about all of my shaders and they've done nothing even close to this

[clever thicket]

hmm

could it be a thing with the texture func?

let me test smtn

im gonna try modifying UV

[simple canyon]

I've managed to decipher one thing here, and thats that the issue resides in the main effect of the shader, as, that is the only difference with my 2 shaders

first one here works normally

second does not

I've also noticed that my shader's time stuff isn't moving

like, it's stationary

compared to what was a fairly active shader, one that moved often

Wha-

I just uncovered something facinating here, people

one sec, let me grab a video of this

every time I reload the shader, the colors change

[clever thicket]

okay so something in UV is fucked methinks

[simple canyon]

reminder of what my shader is supposed to look like

[simple canyon]

oh?

[clever thicket]

im gonna go peer at the example shaders

see what UV is there

maybe try to mess with stuff

[simple canyon]

all I know is-

the left one works fine

the right one doesn't

I've been trying to figure out WHY this is the case

replacing stuff bit by bit, trying to uncover what exactly is going on

like

why is this one working?

[clever thicket]

i think its an issue with the texture2D function

and by extension texture in general?

im checking smtn out

[simple canyon]

ok, I found it out lol... well, slightly anyways-

[clever thicket]

so texture contains every function

[simple canyon]

I think the main issue was that I was missing the "Texture Coord" part in the majority of the code

[clever thicket]

but it’s not defining what coordinate

tex makes a texel which defines that cord

[simple canyon]

however, that only solves part of my issue as

[clever thicket]

Got it

use tex

[simple canyon]

my shader still is frozen for some reason

[clever thicket]

tex.rgb

use tex

instead of texture2D(texture,uv)

tex provides the coordinate too

[simple canyon]

yeah, tex seems to be working

though, I still have a weird issue of being frozen in time, seems like that might be a different issue tho

ok, so, fixed this one too it seems

issue was this #1358951163474481445 message

[idle ermine]

@clever thicket accidentally force pushed and the action is gone 💔

[clever thicket]

well you better go back a commit or 2 and get it

[idle ermine]

i never pulled sadly so i can't rebase
lemme make a new one

fixed

https://github.com/TheBearodactyl/shaderinit/actions/runs/15091705572

you no longer have to rename the output file + it's a flag instead of a positional

wait nvm

ok NOW it works
https://github.com/TheBearodactyl/shaderinit/actions/runs/15091751568

[simple canyon]

how do I tell what direction my shader's going 😭 I wanna just grab a transform tool and flip this 90 degrees and then layer a copy of it that's the opposite direction of it but I know shaders don't work like that 😭 lmao

[simple canyon]

I've got a new shader here, and

it's so wobbly in game 😭

bigger issue actually, lol, uhhm, turns out the way I'm using time here isn't looping completely, it seems as if the lines get thinner and thinner as the shader plays, hmmm

ahh, seems this was an issue with the original shader as well, just never noticed as I hadn't reset the shader, the previous recording was probably around 400 secs in, hmmm, well fuck, lmao, how do I fix this one ? 😭

I think I fixed it

issue was that I was trying to multiply a sin of time by a uv.y, however, it instead was multiplied inside of the sin and, essentally, yeah, the time was grown from that

hmmm, a little dark imo

[simple canyon]

so, I increased the alpha, and, I like the green better now, but the purple is still so dark, lol, how would I make them share the same lumonocity? or even just be closer in it?

this is it, btw

I'mma take a quick nap I think 😔 tired now

[heavy bough]

by the way what is this shader supposed to be?

[simple canyon]

I mean, I don't really think of that too much when I make editions, not yet anyway, lol, I just kinda go with the flow, this one ended up rather technological, so I was thinking of calling it something like "Polyscreen" or "Retrograph"

[simple canyon]

I kind of just mess with the values, lol, hehehe

[heavy bough]

I see.

though for me I just want to like make unique effects like Jpeg or VHS or such.

[simple canyon]

dear epic shader peoples, how would I make my edition here only apply to parts of the texture/sprite which have a high enough brightness?

[simple canyon]

I'd love it if this shader went in all corners instead of just the one corner ashjdbsdjbsh

[simple canyon]

I love making shaders :3

now, how would it do this

[heavy bough]

I want to do the same too except I coudn't try to make a jpeg shader. But Honestly this is good.

[idle ermine]

vec2 rotate_uv(vec2 uv, float rotation)
{
    float mid = 0.5;
    return vec2(
        cos(rotation) * (uv.x - mid) + sin(rotation) * (uv.y - mid) + mid,
        cos(rotation) * (uv.y - mid) - sin(rotation) * (uv.x - mid) + mid
    );
}

// then in effect
vec4 effect(...) {
    ...
    uv = rotate_uv(uv, 90.0);
    ...
}

(in short, it actually very much does work like that)

[simple canyon]

oh wow, neat! I'll test this

umm 😭

lmao, I think I messed something up, lol

this is so funny lol

I have this though, so I'm not sure why this is happening, lol

[simple canyon]

with all this in mind tho, how would I make this happen? 🤔
only way I can think of would involve having 4 copies of, well, everything, lol, and something tells me there's an easier way, lmao

[simple canyon]

still need to figure this out lol sdbnhfbsjh

[sick skiff]

uv = abs(2.*uv - 1.); or something similar right after declaring uv should work

[simple canyon]

u are a wizard, omg, thankuuu hehehehe

[fresh dagger]

writing a message here because discord's ui is garbage and i can't remember how to to pin a thread to the left sidebar

[cyan shuttle]

you can mark a message here as unread and the thread won't go away even after inactivity

[fresh dagger]

and even after i read it then?

[covert stirrup]

you reply pinged someone who literally has do not reply ping in their name 💔

[fresh dagger]

sorry, i ignore stuff like that, no offense but i don't feel like checking every username and/or bio for pinging preferences and feel like they should fix their notification settings instead

[shut wigeon]

GigaChad

[cyan shuttle]

do it again

[dry fern]

i know this isn't related to shadertoy but im having issues with shaders converted from glsl and importing them to balatro for an edition

the problem is the shader needs an effect function and i dont know how to make it and what to do

and when using this i get this error

[heavy bough]

was buliding a shader and this... this happened.

I had it right but how it didn't work?

[heavy bough]

I tried again to port a jpeg shader into balatro and it gave me this.

also I figured out yesterday

somehow

but yeah was still learning

one without the crt

let me just share this

and take a look.

[heavy bough]

Bear if you here can you tell me what's wrong with this?

cause I did try to get it work

almost done but yeah.

[heavy bough]

back at trying to do the compression thing again or atleast try to like do something about the shader

[heavy bough]

and some how I got this.

dunno if I'm goign in the right path but I think it's progress

[heavy bough]

@idle ermine Hey sorry for the ping but right now I'm so close to getting it to render what I have thought I got to render but it's actually rendering the texture sheet:

is there a way to like render a spesific part of the texture?

cause right now I've decided to try again to render the compressed and well this is how I've gotten. though right now everything is a blur and well yeah.

[heavy bough]

I think I finally got it

or close enough

[heavy bough]

I'm having issues like these now