[Archive] The Shader Hole

[jovial tide]

check for dxlevel < 95

[cosmic perch]

would that still work for intel tho?

[jovial tide]

yes

intel cards are forced to 90

[cosmic perch]

thats weird, svetov telling me that he had intel gpu working fine with sm 3.0

on linux

[jovial tide]

thats linux

[cosmic perch]

welp it wouldnt hurt

[jovial tide]

if you ask rubat nicely he could fix it

it requires 1 line of c++ change and 1 line to edit a .cfg file

[cosmic perch]

lemme make an issue for it and include a screenshot of what u said

[jovial tide]

specifically the check for intel to force disable SM3 in CShaderDeviceMgrDx8::ComputeCapsFromD3D needs to be removed

and dxsupport.cfg needs the entry for "Intel Unknown" have its MaxDxLevel changed to 95

[cosmic perch]

🥹

[jovial tide]

this has been tested in other source games by patching the check out and sm3 does indeed work on windows intel

its likely a leftover from the 2000s era where intel had bad sm3 support

[cosmic perch]

do u think i would still need to have a fallback to sm 2?

i have been searching around and most pcs now support sm3

[jovial tide]

you'll have to conduct an experiment on real servers

query everyone's dxlevel and see how many people are on dx 95

i dont know if u can also check what card they have in lua

[cosmic perch]

there was a way by reading crash dumps ig

i dont have a server but i can just one of my addons to collect that

i might just do the fallback thing just to be in a safe zone

[jovial tide]

well until (or if) rubat adds the intel fix, you will need a fallback

[cosmic perch]

https://github.com/Facepunch/garrysmod-issues/issues/6167

thank you for ur great work again ❤️ ❤️

[cosmic perch]

i forgot that im not using length/fwidth for AA anymore lol, but i cant do blur without sm 3.0

i need i.pos

i will just compile rounded stuff using sm2.0 and blur can be ignored on non sm3.0 targets

[cosmic perch]

@jovial tide i have updated the process_shaders.ps1 to automate the versioning

you can check it here incase u want to use anything in ur new repo
https://github.com/Srlion/RNDX/blob/master/bin/process_shaders.ps1

a step i was gonna do is instead of using compile_shader_list.txt to compile list of files, is just have a directory path passed to it and just process all files that have hlsl ext

[jovial tide]

thats similar to what ive done already

[cosmic perch]

oh thats nice

[jovial tide]

there is no reliance on the file suffix anymore as well

and the powershell dependency is removed

[cosmic perch]

how do u detect it tho

[jovial tide]

its passed as a flag to the shader compiler

-ver 30 or -ver 20b

[cosmic perch]

why not just detect the version off the file suffix?

oh nvm

i understand

previously it required both ye

[jovial tide]

so you dont have to make duplicate files for compiling both ps20 and ps30

[cosmic perch]

yeah good one

having fallback to sm2 without i.pos will be p much impossible lol

[zinc sedge]

reflectivity?

what is this

[snow cradle]

fresnel for SSLR

[zinc sedge]

cool

you're doing this with the screenspace general shader?

[snow cradle]

No. I have not yet tried to make shaders for brushes on it.

But it should work

[zinc sedge]

are compute shaders possible with screenspace general?

[snow cradle]

Maybe. I was able to display world normals in rt. This means that shaders works on both brushes and displacements

[glossy sorrel]

Probably.
But data loading and unloading will eat all your CPU resources, since you can't access frame buffer data directly, nor load said data efficiently in said buffer.

You can kinda write data by loading images (png, jpg, etc) as textures, or by generating uncompressed RGBA8888 vtfs and then loading them instead.
Or by directly rendering something in RenderTarget that has point sampling.

To read the data, you'd have to call render.Capture and then waste your resources by decoding png/jpg, or by using render.CapturePixels and render.ReadPixel, which also has really really big performance impact.

Also, you don't have access to the memory synchronisation primitives such as barriers.
And you don't have any way of storing "local" variables per work group.

But it is certainly possible to run RISC-V VM inside of fragment shader.
https://blog.pimaker.at/texts/rvc1/

[wispy birch]

mister rubat can we get compute shaders for the next christmas?

pretty please

[misty surge]

We can update to the L4D2/CSGO constants support (extra 4 floats) and I’d be happy!

[glossy sorrel]

We can have EGSM incorporated in Garry's Mod.
Everyone will be happy then!

[snow cradle]

Rubat rejected this idea a long time ago

@jovial tide

#next-update message

Could you share the parallax cubemap code?

[snow cradle]

how to write matrix const float4x4 g_ObbMatrix from lua???

[snow cradle]

i need help

https://tenor.com/view/panda-cute-its-mine-adorable-ball-gif-17009270

@jovial tide

[cosmic perch]

no help for u

[snow cradle]

local function CreateTransformationMatrix(entity)
    local maxs = entity:OBBMaxs()
    local mins = entity:OBBMins()
    local center = entity:OBBCenter()

    --[[local x = Vector(maxs.x - mins.x, maxs.x, 0)
    local y = Vector(0, maxs.y - mins.y, 0)
    local z = Vector(-200, 0, maxs.z - mins.z + 200)]]

    local x = Vector(maxs.x - mins.x, maxs.x, 0)
    local y = Vector(0, maxs.y - mins.y,  maxs.x)
    local z = Vector(mins.z, maxs.z, maxs.z - mins.z)

    x:Normalize()
    y:Normalize()
    z:Normalize()

    local matrix = Matrix()
    matrix:SetForward(x)
    matrix:SetRight(y)
    matrix:SetUp(z)
    matrix:SetTranslation(center)

    matrix:Invert()



    return matrix
end

[snow cradle]

local pos = Vector(0.0, 0.0, 62.031250) 

local function CreateTransformationMatrix(entity)
    local maxs = entity:OBBMaxs()
    local mins = entity:OBBMins()

    local sizeX = (maxs.x - mins.x)*0.5
    local sizeY = (maxs.y - mins.y)*0.5
    local sizeZ = maxs.z - mins.z

    local matrix = Matrix()
    matrix:Identity()
    matrix:Scale(Vector(sizeX, sizeY, sizeZ*0.656))
    matrix:SetTranslation( pos )
    matrix:Invert()

    return matrix
end

float distance = min( furthestPlane.x, min( furthestPlane.y, furthestPlane.z ) );

[bronze epoch]

Lets go

Youre gonna be my hero

[misty surge]

Try using:

https://wiki.facepunch.com/gmod/Entity:GetWorldTransformMatrix

View matrix for the player, with translation. So I assume ViewModel but idk if it’s uh View projection

[misty surge]

Pure Viewspace. No Vertex data. I'm so hyped. Completely 3D.

[cosmic perch]

what the fuck

we can reach the moon now

source pls so we can learn how u do this tech

[misty surge]

Still a lot to fix up. Screenspace doesn’t properly let you do a lot of things. Like passing a fragpos, I have to use an extra texcord. View matrix is fed into the shader instead of using screenspace translations. Maybe when it’s a bit more ready, I don’t see why not.

[cosmic perch]

leave it on git and let us see how u deal with these issues *-*

im too scared to play with VS_OUTPUT/PS_INPUT

not sure if anything fuckery will happen if i do that

[misty surge]

Nah, it’s all about being wrong, until you’re right. Spent a week on this, the original method I scrapped due to unrealistic behavior.

[cosmic perch]

all info we have now will be dead for new people

forums would have been awesome ;-;

[misty surge]

yup, those days were awesome.

[cosmic perch]

@raw sand ur done

[cosmic perch]

NO MORE PANEL SHADOWS OR ALL THESE HACKS

NO MORE CARING ABOUT IT HEAVY

🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫 🔫

[snow cradle]

😎😎😎😎😎
small success. I've given up on matrices (for now, but I'll still need to adapt the rotations, since this thing only works with 90 degree rooms for now)

[cosmic perch]

mirror room awesome

[raw sand]

magician

[cosmic perch]

make a mirror room mate

@snow cradle @snow cradle @snow cradle @snow cradle @snow cradle @snow cradle @snow cradle

[raw sand]

make sir alonnes arena 🗣️

[snow cradle]

ok

[livid cliff]

Could these shaders be used to recreate source water fog? I need a way to have moving water that also has reflections and refractions that doesn't require RenderView

[snow cradle]

+++

Yes, you can make a box, put it over the water and give it a material with a haze (water fog) shader

[snow cradle]

refractions = Screen Space Local Reflexions (bad idea for water) or Cubemaps (source default) or Parallax Cubemaps (👍)
then you change texcords for texCUBE of cubemap.

SSLR needs to be combined with other reflections, otherwise the picture will move away.

[livid cliff]

I have absolutely no idea what this means
It seems I will have a lot to learn if I want to actually make this

[snow cradle]

https://github.com/ValveSoftware/source-sdk-2013/blob/0d8dceea4310fde5706b3ce1c70609d72a38efdf/sp/src/materialsystem/stdshaders/lightmappedgeneric_ps2_3_x.h#L81
here default cubmaps code:
specularLighting = ENV_MAP_SCALE * texCUBE( EnvmapSampler, reflectVect );

[snow cradle]

Yes, you will have to make a shader from scratch. But at least you can get realistic water.
You can take code from other engines or from training guides.

I noticed that each region has its own special shader guides: the English, the Russians, the Chinese. It's interesting to visit foreign forums once again.

[livid cliff]

It would need to be a 1:1 (or at least close enough to a 1:1) recreation of "expensive" source water

[misty surge]

I know the lighting doesn't make any sense but:

Came out pretty nice.

Fixed it

Call it a night, tm probably will work on some other planets perhaps.

Do some basic depth map, shouldn't be too hard.

[snow cradle]

this is shader render only?

100% image?

And do u have custom lua ViewProj?

[graceful lynx]

Could you explain this a little?

[zinc sedge]

are you going to have screen space reflections layered on top of parallax corrected cubemaps?

so like, the screen space reflections take visual priority over the cubemap where possible

and when you're not able to see the windows in screen space then it'll show the cubemap windows

[snow cradle]

I want to do SSLR. In theory, you can combine it with Paralx cubemaps. But this needs to be seen in action.

[misty surge]

After my long deserved sleep, here’s how it works:

I calculate the view rays casted by screen space, these would be the edges of the projection matrix. I translate the the rays using a simple Inverse View matrix I made in lua.

Then I bake all of this data into the 3D planets, so they don’t use traditional Verticies, instead they’re generated via the fragment shader. Pure Screenspace shader, no 3.0 here.

The only verts being casted is the 4 edges in the screen quad I draw.

I have access to the planets normals, and stuff as I would had I used the vertex soup from say a sphere itself.

[misty surge]

Still gotta Smooth step the atmo but this is what I got so far

[misty surge]

If I had shader 3.0. Oh man, I’d be so happy. Unlocks so much more power.

[cosmic perch]

what?

we already have sm3?

[livid cliff]

Isn't it like un-available on x86-64 rn because the changes to the shader were reverted due to Linux crashing or smth

[cosmic perch]

fuck x86

oh wait

fuck linux too

[misty surge]

Ray marching since 2.0 vs using 3D textures. We’ll see.

[misty surge]

The vertex shader was revoked I think for that reason.

I’m not sure 3.0 was ever supported properly, but again I could be wrong.

[snow cradle]

Did you know that screen space shaders don't support lightmaps?

We simply will not be able to add their support to shaders for brushes or models

[misty surge]

I did not! Huh wow

Have you tried looking at the +mat_mat list or w.e. It’s called for the rendertargets?

[snow cradle]

SSGI + Bilinear Filtering

[snow cradle]

SSGI 32 -> 12 samples (more fps & no noise)

[misty surge]

You think I should put in a request to add 3.0 shaders option into screenspace, it would be lit.

Lmk

Lol

[cosmic perch]

mate

we have sm3

go on dev branch

it doesnt work on x86-64

check how i do it here, ive taken the thing for vertex shader from this one

https://github.com/Srlion/RNDX/tree/master/src

thats why we need forums!!!!

[short dirge]

what we need is long standing issues forcing people to be on -64 to be resolved

namely, merging 64bit to main

[raw sand]

i think that servers should start having a popup that says "hey, psa, switch to 64 bit" on join

if enough servers do it

we can annoy people into changing numbas

[cosmic perch]

rubat wouldnt care lol

64 is more trouble for him and its prob annoying to have to deal with 3 branches

[short dirge]

i hate having to switch to 64 just for hammer++ to work at all

[livid cliff]

He has to deal with three branches and the occasional nonsense that comes from Linux lol

[cosmic perch]

ye haha

[misty surge]

Fog and some clouds using 3D textures. I wanna make em actually 3D.

I stand corrected, 3.0 works

[cosmic perch]

is it all math drawn or has textures

[misty surge]

only 4 textures

[cosmic perch]

how do u supply them to the shader?

[misty surge]

I only use 3 actually.

Screenspace

$c0_x,y,z,w.... $c0-3 BUT 4 is only L4D. IDK WHY

& portal 2

Or was it CSGO idk

Per planet

so in theory I can probably get away with having any amount as long as I have a material to back it up.

3.0 needs another compiler flags, but it's worth noting I can push my Parallax mapping up to 128 without issues. Since I got a lot of that working, I'll probably start implementing actual volumetic clouds.

[cosmic perch]

what other compiler flags, i just pass the -ver as 30

check rndx on how i do it, i made it p easy to compile with multiple versions too

thats what the other empty textures for lol

[raw sand]

very nice srlion

[cosmic perch]

shutup

[errant nacelle]

why did you hide my pfp on the rndx github page

[cosmic perch]

its an easter egg hehe

basically it means circles dead

👍

🔫

[errant nacelle]

also this is false

you can have over 300 new circles per frame and only lose like 50 fps

[cosmic perch]

its drawpoly perf notu

that 50 fps is a lot

i know it wont happen

[errant nacelle]

down from 600 :v

[cosmic perch]

but old pcs will actually have an impact from drawpoly

and u got no AA

🔫

[errant nacelle]

I do if you enable aa in game settings :^)

[cosmic perch]

currently because i have no way to batch setfloat calls, its as fast as drawing an image

[cosmic perch]

no it doesnt work anymore

changing AA in settings literally does nothing

[errant nacelle]

how did they break aa

[cosmic perch]

thank god

i thought i was fucked in my head

because i was sure that changing AA does affect drawpoly

[errant nacelle]

it 100% use to

[cosmic perch]

if u can test it to confirm

because ive tested everything and it doesnt work

im sure because i was checking how drawpoly would look like in high aa

we can still do msaa with shaders lol

[errant nacelle]

drawpoly definitely has aa

[cosmic perch]

did u test it

[errant nacelle]

testing it rn

[cosmic perch]

ok

show results

[errant nacelle]

were you rendering in a none aa hook or some shit

some of them don't have aa

[cosmic perch]

hudpaint

and panel:Paint

[errant nacelle]

they don't have aa 😭

[cosmic perch]

see

i was going insane, when i was making sam i was checking how it looked with and without

[cosmic perch]

wait they do?

[errant nacelle]

I'm pretty sure Panel:Paint should have aa but HUDPaint definitely doesn't

[cosmic perch]

this is panel paint or hudpaint

[errant nacelle]

that's in PostRender with cam.Start2D

[cosmic perch]

oh

panels dont too

[errant nacelle]

PostRenderVGUI has aa too so idk why vgui wouldn't have aa

[cosmic perch]

🤔

wtf

[snow cradle]

SSGI (Wall fix) + Color bleed

[misty surge]

Looks amazing

Where’s the trash can tho?

[snow cradle]

I use a trash can as a computer and make shaders on it.

[errant nacelle]

pick up the can

[graceful lynx]

Okay now what

[obsidian merlin]

standard insertion procedures

[dusty linden]

https://tenor.com/view/half-life-half-life-2-hl2-combine-metro-cop-gif-12969715551428333839

[misty surge]

Volumetic clouds WIP RN, debugging some stuff. But this is a great result for now.

[hollow arrow]

Btw sit i was wondering is it costless or not to put all my UI into that ?

[cosmic perch]

wdym?

[hollow arrow]

Like is using that parameter use more perf or something ?

[cosmic perch]

nope

[hollow arrow]

Cause all my UI look bad

[cosmic perch]

that shader is really fast

[hollow arrow]

Hmm good to know I’ll look at that thanks sir

[snow cradle]

Simple Parallax on Screen Space Snow shader

[cosmic perch]

counter strike!!

[snow cradle]

SOURCE

[misty surge]

@jovial tide How many max samplers can we produce for screenspace? Is it only 4? D:

[jovial tide]

4 texture samplers

[misty surge]

sampler3D route then I suppose.

[snow cradle]

I really want to have at least 5 textures 🤓 and 32 floats

for adding 4x4 matrix + other values

[snow cradle]

Parallax on PP Snow v2 (+bumps + speculars + ao)

[dusty linden]

very nice

[snow cradle]

Applying snow to the world

[snow cradle]

Point light shader (start)

[graceful lynx]

How does a point light cast shadows in all directions?

Surely it's not just many spot lights facing in different directions

[snow cradle]

2 cameras with 180° fov
or 6 cameras with 60° fov

or 6 ortho cams

i wanna make 2 with 180

idk how better

||1 with 360° ||

https://tenor.com/view/what-is-the-next-step-for-immigration-immigration-alien-locked-in-alien-locked-in-gif-7143551599349454414

[graceful lynx]

This was the exact solution I was hoping it wasn't!

[snow cradle]

also cameras can be rendered as cubeTexture. but idk how to collect it to 1 texture

is it is 60° cameras

also i think they can use 1 matrix ViewProj. All 6 cameras

[graceful lynx]

The wider the FOV, the more the image will be distorted around the edges, right?

So more renders with lower FOVs will be better

[snow cradle]

++

[snow cradle]

but more cameras -> less fps

🤔

[graceful lynx]

That's true

I have no idea how it can be fixed

[snow cradle]

1. In fact, you can only render the view from the nearest cameras.
2. You can only render those cameras that have noticed movement - calculation in LUA
3. Cameras can be rendered in turn in their frame. Each fps, different cameras are updated. And so on in turn.

If the camera is not updated, the shadows will remain. New ones simply will not appear.

These methods can be combined.

[zinc sedge]

why 60° and not 90°

[snow cradle]

360°/6 cameras = 60

[graceful lynx]

Why 6 cameras?

[snow cradle]

we need to capture exactly 360, no more, no less

[snow cradle]

right, left, top, bot, forward, back

[graceful lynx]

But forward and right are 90° apart

So wouldn’t you want a 90° fov?

[snow cradle]

and how many camera i need with 90 fov?

4?

@graceful lynx

[graceful lynx]

4 for horizontal, then 1 for up and 1 for down

[snow cradle]

360/90=4

i think 4 cameras must be as "X"

[graceful lynx]

Right

No matter from which side you view, it looks like an X of camera frustums pointing out from the center

[snow cradle]

sounds like the optimal solution

[zinc sedge]

well, cubemaps are made with 90° fov

I've made a similar thing to a cubemap before with 6 views making up a cube and the fov needed to be 90° to look correct

[snow cradle]

To render shadows you only need to see the area with the camera. Intersection of the camera fov is not necessary. The main thing is to see all 360°. Cubemap probably just has its own specifics

[zinc sedge]

are you doing something like this but for some kinda shadow mapping?

[snow cradle]

no

[zinc sedge]

I just don't understand this

[snow cradle]

I will render each camera separately and add up the shadow results

[zinc sedge]

is it a cube of views at all?

[zinc sedge]

you mentioned "cubeTexture" so I'm curious what this is

[snow cradle]

the cube will not be assembled. there will be 6 separate shadow map textures. Which will give 6 shadow results.

Or 2 cameras at 180. I don't know yet. Although it is possible to assemble a cube texture. It is difficult to think about this, since the approach changes dramatically depending on the number of cameras.

Especially considering that the VCS has a limit of 4 textures. All this devilry will have to be broken down into several shaders and compiled

cube texure like cubemap

[snow cradle]

mb

I don't know which approach to choose, how best to implement it

I'll make 2 cameras of 180° and fuck it

[zinc sedge]

I would think regardless if you assemble it or not, getting 6 different views that would make a cube still needs to have the fov be 90° for each view

since each view is presumably 90° from each other

[snow cradle]

should the camera have the same position in this case?

[zinc sedge]

every view should have the same position. From my understanding anyways

when I've made a cubemap like thing before, that's how it worked and it looked good

[snow cradle]

yea it must be 90°. i l read it on forums

[snow cradle]

@misty surge how to create radial fog

Is Radial Fog a Post Processing?

And then it is worth disabling the old fog, and tying the current functions to the new fog? (rewriting standard functions)

Overall, it would be possible to add even more functions to the fog. But the fog would also have to be created in a 3D skybox.

It would also be possible to add some unique features to the fog shader and make it more beautiful.

Surely a lot of technologies have already been invented before us.

It's worth looking at what's on the internet about shaders and fog effects.

Maybe we can make fog using 3d textures ??

Or make color gradient for fog

Also we can mix fog color and sun color using sun direction

https://iquilezles.org/articles/fog/

Better fog

[misty surge]

The parallax but again, needs adjusting

Currently went with Ray marching, it's unfortunate that the effect is limited due to how it's being rendered.

I'd add more detail, but eventually my shader won't load.

[wispy quartz]

360/4
the 2 left cameras are up and down ones

[keen coral]

PP radial fog base for @snow cradle

[dusty linden]

looks great

[snow cradle]

https://advances.realtimerendering.com/other/2016/naughty_dog/NaughtyDog_TechArt_Final.pdf

[misty surge]

Ooo niceee

Which 3D texture did you use?

[snow cradle]

Perlin
https://steamcommunity.com/sharedfiles/filedetails/?id=3409996672

[misty surge]

Nice! Ok. Thank you. Ima look into fixing the clouds when I’m not at work (1:00am - 6am ;-;)

[snow cradle]

Radial fog shader test ft. @keen coral

[misty surge]

First one looks better

Both 🔥

[snow cradle]

how to make texured fog? can i use perlin noise?

[errant nacelle]

flow field perlin noise would look cool

[snow cradle]

++

idk how to use tex3D perlin noise on fog shader

what is float3 texcoord for tex3D on fog shader

i l try use worldpos as float3 texcoord

and mul result to FogFactor

[snow cradle]

test render 3d texture

[snow cradle]

just first try

[graceful lynx]

Very nice!

Is there a wind direction built into the Source engine already?

It would be very cool if the direction of movement for these kinds of effects was in sync with other effects like vegetation blowing in the wind

[errant nacelle]

stormfox support when

[graceful lynx]

Stormfox does definitely have a wind direction concept

[errant nacelle]

only reason I suggested a flow field was because of wind

you could add some pretty cool convection currents too

[misty surge]

Do we have access to the geometry shader? I don’t know if there’s an option, but this would be nice, if we had that on screen space.

[misty surge]

Apparently not. Dx11 tho

[snow cradle]

+++

[heavy blade]

hi shader guys

ok, my work here is done, I don't understand shit about shaders, have fun! :D

[misty surge]

What’s this? Shader replacements? For not just Screenspace?

[heavy blade]

I have no idea, you can override shaders

[neat terrace]

ahuh

[misty surge]

If there’s a way without using EGSM, I’d like to know asap how.

[elfin plover]

That's for when you're compiling the SDK

Don't think it's going to be much help for what's being done here

[misty surge]

Finally fixed my fog

Looks nicer inside the atmosphere too. More realistic.

Still gotta fixup the parallax and raymarching on the terrain.

[dusty linden]

Foggers!

https://tenor.com/view/blink-cat-fog-is-coming-fog-blink-cat-gif-27538337

[misty surge]

Fixed exterior view. Looks epic! 😄

[snow cradle]

yoooo

[misty surge]

Ayeeeeee

[leaden wasp]

beeee

[misty surge]

Clouds are so beautiful.

[snow cradle]

yo

[bronze epoch]

Blue marble

[graceful lynx]

OKAY

Anyone got a good first-time setup guide?

A "Hello World" type shader example?

[vapid reef]

https://thebookofshaders.com/ is a amazing learn shaders resource
for the source stuff look at https://github.com/ficool2/sdk_screenspace_shaders

[neat terrace]

we can now load from the garrysmod/shaders/*.vcs dir
does this change anything in vmts?

[icy plume]

I’ve been trying to understand this from an end user perspective. How do these shaders work and how would one apply them? Would it be a master vmt that loads the shader for you to use in other vmts?

[vapid reef]

look at the resource i sent

they explain everything

for more directed questions you can ask them but for general "how does it all work" those resources suffice

[icy plume]

Thanks, will do

[cosmic perch]

u guys can check https://github.com/Srlion/RNDX/tree/master code, i made it simple to compile for sm2 and sm3 and check src/rndx.lua on how i do it

u need to add what u want to compile in compile_shader_list.txt with the version and define ur stuff in src

[jovial tide]

incase people dont check #next-update #next-update message

[cosmic perch]

@jovial tide do i need to worry about the bug for 2d/ui?

[neat terrace]

what happens with the bug :?

[jovial tide]

which bug

oh

depth testing isnt relevant for UI

this is only for 3d geometry

[cosmic perch]

ok nice as i would hate to rewrite what i wrote

btw i wrote a nice bat file incase u want to check it out https://github.com/Srlion/RNDX/blob/master/build_shaders.bat

can just do now:

rndx_rounded_1_psxx.hlsl -v-20b -v-30

[misty surge]

If you’re using screenspace and you need depth correctly displayed, I believe (might be wrong) the DepthWrite shader will need to include your mesh you’re rendering since screenspace doesn’t have a depth pass.

Or a very non existent one.

@jovial tide When you write out your example, maybe try to also show us how to use DepthWrite as well, since it’s very useful, but not documented.

[jovial tide]

this is the bug im referring to

you should not be needing depthwrite

[neat terrace]

oh cool, i should be alright then
im just blending a bunch of textures together :)

[misty surge]

I agree. Like you said, we gotta have another shader then, because screenspace shouldn’t need it, right?

[jovial tide]

yes

a generic custom shader would be a lot more powerful

and support 8 textures, lightmaps, hardware skinning... and so on

[misty surge]

Jeeze my heart stopped after you said that.

Sounds amazing.

Keep up the great work brother. Wouldn’t be here without your help.

[exotic willow]

What if make it part of Garry's mod, an build-in replace of draw.RoundedBox?

[errant nacelle]

make a new shader.* library that's just surface.* remade with shaders

[cosmic perch]

im not sure if rubat would accept it tbh, i could at least make a version for rounded box that is simple implementation

[neat terrace]

i heard people being limited to a certain number of opcodes/operations in their shaders; does this still happen?

[cosmic perch]

@agile turret would u accept a replacement for draw.RoundedBox using shaders?

[glossy sorrel]

It is, but it isn't.
SM3 has humongous limits.

[exotic willow]

Probably, it can be just in pull requests as is, like outline lib

[glossy sorrel]

SM2 - meh, but enough.

[neat terrace]

do you know specifically how much for both sm2 & 3?

[cosmic perch]

i dont really want to waste time working on it and then it gets left in the sea really

my lib will literally be just 1 file include, no steps, no anything, just one file include

[errant nacelle]

do shaders work with stencils

[cosmic perch]

i wanted to test that really, maybe @jovial tide could tell

every time i would test it, i would be really busy

[exotic willow]

Well, you already ask Rubart, just wait then?
But i guess make simple replacement for draw.RoundedBoxEx probably easy

[cosmic perch]

its a low chance that he would add it tbh, he doesnt want to deal with any issues for a heavy used function

[glossy sorrel]

I can't say precisely.
But for SM2.X it should be somewhere around 1024.
SM3 should have a lot more. Like a lot more.

[cosmic perch]

he could accept it as a new function, we dont know if shaders will have same behaviour of draw.roundedbox or not, so a weird behaviour that user depends on, will just break

[glossy sorrel]

Also, SM3 supports loops, so that they do not unroll themselves and do not eat up all your limits.

[cosmic perch]

if u can wait for me to polish rndx and then u create a simple version out of it, i wouldnt mind

[exotic willow]

So, replacement for hook lib to be just batch compiled function couldn't accepted. Eh

[glossy sorrel]

Shaders do work with stencils nicely.

[cosmic perch]

well, someone will rage on why his roundedboxes work on stencils lul

[glossy sorrel]

LOL, that will be strange.
Literally better behaviour, and raging about it?

[exotic willow]

Strange...

Sounds like an old granny's behavior

[cosmic perch]

u dont want to break old addons just to have fancy smooth/faster drawings tbh

[exotic willow]

How?..

[cosmic perch]

idk, but u will surely mess up one shitty addon

it wouldnt hurt if u just make a wrapper on top of rndx for ur own server

[cosmic perch]

its one of the reasons i try to keep my hook library 1:1 to default hook library

[glossy sorrel]

For example, user expects that rounded box will affect whole rectangle when rendering trough stencil.
And now, with shaders, it affects expected region where pixels were actually changed.

[exotic willow]

You about hook's there?

[exotic willow]

Prob better behaviour

[glossy sorrel]

¯_(ツ)_/¯

[cosmic perch]

im speaking about trying to keep compatibility is an important thing

unless u have versions locked

thats why i make my libs use a local table, so if someone uses a higher version, it doesnt break ur addon which uses an old version

[exotic willow]

Well, we have

[cosmic perch]

i can also freely do breaking changes as old scripts will keep functioning

[exotic willow]

Well, just wait for reply about replacement

[cosmic perch]

if u have a server, dont wait for it and replace it already

[exotic willow]

Probably we do that soon

[cosmic perch]

just wait for my polish tho, i just need to finish remaking goobie-mysql first

[glossy sorrel]

Also, yeah.
Now I can do something like shell texturing. Finally.

[exotic willow]

Dithering

[glossy sorrel]

It still will be rendered using VertexLitGeneric.
But alpha values and multi-texture blending. Oh boy.

[exotic willow]

Maybe we just wrap it to draw.RoundedBox and use iVogel or our shader implementation

[glossy sorrel]

Why mine tho? srlion has one implemented already.

[exotic willow]

Single draw with outline?

[glossy sorrel]

My implementation do not support uv offsetting and scaling.

[exotic willow]

Eh, ok then

Well, need to replace Glitch effect with shader one, i think?

[cosmic perch]

where is ur implementation @glossy sorrel betch

[glossy sorrel]

On my drive :(

[cosmic perch]

see i told ya, a betch

[glossy sorrel]

9(9(9(((9((((((((99(((9(

[cosmic perch]

SHARE IT

we need as much shaders out so people can learn

and see different implementations

[glossy sorrel]

I will.
But first I have to settle a business with physics engines and C.
It eats me from within.

[cosmic perch]

haha

[glossy sorrel]

luajit is no fun when trying to interface with libraries without adequate C api.

[cosmic perch]

are u detouring luajit internal functions or just the lua c api

[glossy sorrel]

Doing basically this.
But this is bad example.

Btw, tcc helps a lot with all of this.

[cosmic perch]

oh fuck ffi

are u using meta's ffi? last time i tried it, was slow to use

unless using raph's version that compiles with ffi lol

[exotic willow]

Just luajit ffi, he work outside gmod currently

[graceful lynx]

Should

[exotic willow]

it do

[graceful lynx]

Thank

[restive spade]

is there any examples of using screenspace_general with shaders meant to be used on 3d meshes with depth testing?

[jovial tide]

depth testing is broken, im going to forward a fix

[restive spade]

alright, awesome!

[bitter oriole]

https://cdn.discordapp.com/attachments/438444416026542090/1347046961576153169/clip_1741231408400.mp4?ex=67cb0f7e&is=67c9bdfe&hm=d51c98fd3a10202fc76f96632471b418b4ab71762a168b38e2c06c54c9535ccd&

After messing with shaders yesterday, I managed to get the wave example working on a displacement lol ( with examples from rndx )

Eagerly waiting for more examples

[shadow shuttle]

nice
boy why you so half life water

[bitter oriole]

its actually quake 3 slime 😄

[shadow shuttle]

oh darn

[bitter oriole]

I want to recreate this

@jovial tide will more examples be posted today?

[shadow shuttle]

the waves go up and down in your shader right

[bitter oriole]

No, the texture is just being swirled using the wave pixel shader

I need to find an example on how to manipulate the vertexes

[shadow shuttle]

Ah aight

[dusty linden]

blud is a b1 battle droid

🐴

[short dirge]

not something I made, but some inspiration for y'all
https://fxtwitter.com/PHRISK3D/status/1897351593684820175

[misty surge]

Still WIP shader stuff.

[sacred jackal]

Someone got a example on how to use the shader on a model?

Idk if i did this correct but this is the shader vmt

screenspace_general
{
    $pixshader "example_ascii_ps20"

    $basetexture "loading_test/loading_test/waist_belt_med_ge_mtx75c01_u_d"
    $texture1    ""
    $texture2    ""
    $texture3    ""
 [Striped, nothing changed]

And this the model texture:

"VertexLitGeneric"
{
    $model "1"
    $nocull "1"
    $vertexcolor 1

    $basetexture "effects/shaders/example_ascii"

    $softwareskin 1
    $translucent 1
}

[timid pumice]

It doesn't work like that, basetexture takes a texture, not a material as parameter

[sacred jackal]

oh

sorry

[wispy quartz]

Draw a model with Depthwrite shader first, then draw it with your custom shader right now

[icy plume]

would it be useful to have some kind of shader tag for the workshop? 🤔

would make it far easier to find everything shader related on the workshop whenever that time comes

[shadow shuttle]

that would be helpful really helpful

[sacred jackal]

wtf, i applied the hearts shader to it

[dreamy grail]

💀

[sacred jackal]

yeah, somehow the shader is only affecting some parts of it ❓

[misty surge]

You’re rendering a screen space shader into a 3D component. The shader doesn’t work like that. It’s specifically screen space related stuff. You can use on a 3D model, but screenspace absolutely uses no depth whatsoever.

Plus, it won’t appear like it would on the screen because of the translations.

[sacred jackal]

hmm okay

[misty surge]

What you can do most likely is if you want that texture to work, you may have to try a simple box first, so you can see how it distorts

Basically your UVs may be too small. So having a test box to see what/how it works, is a good start.

[bitter oriole]

I decided to use imesh to make the "goldsrc water effect" combined with the "wave" pixel shader.

[dusty linden]

https://tenor.com/view/impressive-very-nice-patrick-bateman-gif-15247511

[shadow shuttle]

woo wake up waves dropped

https://tenor.com/view/gif-gif-19494561

[timid pumice]

https://tenor.com/view/american-psycho-impressive-very-nice-coping-patrick-bateman-gif-26518058

[heavy blade]

nostalgic, I remember playing a lot of Zombie Escape and Plague

[misty surge]

If you are going a step further, add “refraction” to add realistic light bending.

[shadow shuttle]

replace the green goop with a normal water texture

[graceful lynx]

MKA0207: “I faithfully recreated an old effect!”
This chat: “What if you did something completely different?”

[shadow shuttle]

use the remover tool on this guys house

[misty surge]

The sun wip

Next is uh... Black holes and I'm done with this for now.

Can start implementing this into the game I have setup finally...

You can barely see these planets, but there's 9 of em. The sun is huge a.f.

[dusty linden]

Hmm. Planet LOD?

[misty surge]

The sun is actually bigger at like earth x 189~ So essentially would take half of the entire render pipeline tbh, but the planet's are actual ratios.

For complex planets, sure like earth, I have a distance check in the shader itself.

As well as front vs back rendering

Like behind screen, don't draw.

At that distance.

Earth uses volumetric clouds. So yeah, it'll be a bit more but I'm sure after I can totally optimize the performance.

Each planet is 8k textures, Depending on what I can do, maybe increasing resolution perhaps may tank performance, but higher detail would look even better.

[vapid reef]

at that point i would start by using detail textures and bumpmaps to increase the perceived quality instead

[misty surge]

It does have raymarched and parallax. If I could push an extra buffer (using samplers for: framebuffer, planet color, heightmap, & 3d clouds (limited to 4??? D:<)) but maybe I could throw the bump map into the heightmap and split it up horizontally?

If I could change the $frame and check inside the shader, that would be cool but I don't know how to do that. VTFs with seperate frames may only be material specific.

[vapid reef]

only way is to provide it as a parameter, consider shaders as pure functions

[misty surge]

I also have a night texture too on hold which is another buffer I'd like to have. But perhaps I can sprite sheet it, and setup a system at least for earth.

I need at least 2 more texture slots I don't have.

[rain marten]

Is there a "correct" way to get a high-precision depth buffer of the player's view?

I initially used the DepthWrite shader alongside the RenderScene and PreDrawSkyBox hooks, but that had issues like: flickering chunks of the map, improper depth on transparent objects, hidden sprites on the "normal" view, etc.

Right now I'm using the _rt_ResolvedFullFrameDepth texture instead. It does work without those issues (as long as I add a NeedsDepthPass hook that simply returns true), but it still feels like I'm just doing a hacky thing, and it still breaks when it comes to grass (like on this video).

[ionic wraith]

@misty surge I'm trying to implement ray marching but I can't figure out a way to get the ray direction, how did you do it?
I'm asking you since you seem knowledgeable about the subject

[misty surge]

Sure, I’m at work. When I get a chance I’ll explain for ya

I may have an example somewhere too.

[misty surge]

Ok so DepthWrite is an extremely powerful tool for fooling the game that "SCREENSPACE" has depth. IT does not have any depth. Period.

Raycasting is simply just this:
Light from eye to surface.

Meaning there's two levels to this. You'd have to:

1. Render new material into a renderTarget (to increase, use 16bit)
2. Preload depth in our case.

What is so great about DepthWrite? Well this is when you're able to produce the maximum precision. Lack there of.

When you have depth, raycasting would be simply be super easy. input_UV coords are the clipspace equivilent of ray casting,

After you have clip space position, you must properly multiply this clip and convert it into 3D (worldDir) (rayDir) . Please multiply it into a "VIEWMATRIX".

ViewMatrix will convert into 3D position IF you inverse it to allocate a clip to Real World Position. So inverseViewMatrix. PLEASE do not use Translations because the shader cannot handle improper usage. You need to properly convert them.

With that said, you'd have raycasting from eye to dir. Then raymarching to check the distance (OR DEPTHMAP?!@?#?!@?) so you could just occupy that level of technique.

[misty surge]

Honestly you could do so much just with this shader alone. It’s a form of illusion of depth. That is the most important tool,

Runtime shader calculations are faster than some silly 2 pass process.

There are trade offs as well. Which follows some basic logic like where it is based on distance

Etc etc. lemme see if I can find my example code

This is my vertex shader for my planets system. Simple stuff. Don't overcomplicate it.

I have issues with the view matrix we're given here, so I actually override my shader with the "VIEW MATRIX" which is literally:

local viewMatrix = Matrix();
viewMatrix:SetAngles(Angle(EyeAngles().y,EyeAngles().0,EyeAngles().p)
-- Don't think your slick you can shortcut by translating before it's decompiled, that's a VERRY hard lesson here, we need a better matrix.

for ....
  Shader:SetFloat() -- Which should be SetFloat4() for performance gains
end

Controlling shader logic via lua > using static view matrix since ScreenSpace is static.

The world should revolve around the camera. Okay I'm done typing, my keyboard is sticking rn.

raymarching is a technique to basically use a shader's until.TraceLine(This Pixel).

RayTracing is like 2 levels of that idea above.

DX11 :V

Anything else is up to you. I wanna potentially release the planet shader. I've never contributed anything at all so maybe this could be my dent. idk

To draw objects in my case I'd have to convert 3D to 2D and layer it, so each shader has a layer being rendered ontop one another. Using FrameBuffers I blend each layer so I can produce a ton of planets. In the order furthest from the camera to the closest because.... IT will then layer the planet's in order of "DEPTH" which I outsource to CPU using lua distance check, and some index table setup I have going on.

If they're close together, you'll notice the depth is "fake" but spaced out it's impossible to tell.

[misty surge]

https://github.com/EthanTheGreat/gm_universe/tree/main

Not my up-to-date code, but this is generally how I'm rendering planets.

[ionic wraith]

I'll take a look at it after work thanks 👍

[vapid reef]

https://wiki.facepunch.com/gmod/GM:NeedsDepthPass
https://wiki.facepunch.com/gmod/render.GetResolvedFullFrameDepth

this is The Way™️

internally the result of the depth pass is not copied over unless NeedsDepthPass is set to true, something to do with performance

basically saves you that depth blit if you return false

ideally though you do all the depth stuff realtime since blitting rt's is stinky on that perf

it would be neat if we could get a RT that has more R channel bits

since you know 8 isnt enough for this depth rt

[hollow arrow]

Would it be possible to get a shader for cubemap parallax ?

[misty surge]

I think so. But I’m not entirely sure I never tried myself.

[vapid reef]

^

[hollow arrow]

Please can you release it 🙏

[bitter oriole]

green goop is cool tho

[wispy quartz]

It returns you ugly 8 bit depth buffer.
With DepthWrite you can make 16 bit depth buffers basically doubling the precision.
If there vwas Rubat, he could have make the resolved depth rt be R32 (32 bit depth, actually 24 but that's good too) or at least 16 bit one

For 8 bit and 16 bit its 256 depth values vs 65536 depth values is a lot of diff

[misty surge]

My only gripe with higher res depth, is that obviously can be very expensive in your scene.

[shadow shuttle]

now this is what we call getting gooped

[graceful lynx]

They're all wrong, this looks tight

It would look especially nice if you found a way to get props like that canister to float in the goo

[misty surge]

This 100% reminds me of crash bandicoot levels lol

[misty surge]

I spent the whole night making a new system to copy and paste the shader and generate the vmt without having to restart the game each time. Very useful, 🙂 iterating between shaders makes adjusting so much easier.

Fixed up layer blending with alpha. So much better because now I freed up one of my texture slots for a night-time side to the planet

Looks a lot nicer, and less dilluted like the last few pictures. I don't think anyone would notice unless in-game.

[dusty linden]

https://tenor.com/view/gif-gif-19494561

[misty surge]

Should I post my power shell script here for ppl?

Very helpful, saves me so much time between builds

[rain marten]

yeah I kinda need that
I've managed to sort out some of the problems with DepthWrite by giving { viewid = 7 } to render.RenderView, but I still have issues with transparent things

[wispy birch]

alphatest

is ur answer im p sure

[rain marten]

when creating the DepthWrite material?

because I've tried that one

[wispy birch]

yeah something of that sort

the reason this shit happens is cause these trees are only alpha transparent, the vertex space is still occupied, and depth is written via that (also the reason why there are two entity passes, opaque and transparent)

do alphatest == 0 and it should be ok

[rain marten]

aw, I thought there was a way to let the depthwrite shader know to discard those pixels, but I guess not

[wispy birch]

im not sure that this shader has an idea of alphatest in the first place tbh

[hollow arrow]

Please do

[misty surge]

https://wiki.facepunch.com/gmod/render.OverrideBlend

maybe do the trick.

[wispy birch]

nah, thats blending, its not conditional

[misty surge]

Lame ;-;

Shader DepthWrite needs an upgrade

[wispy birch]

if you want to use alphatest, you can do alphatest with stencil and THEN DepthWrite

[wispy birch]

what for

[misty surge]

Alpha testing, mainly

[wispy birch]

stencil gets you covered

[misty surge]

I see, that makes sense. Hmm haven’t messed around with stencils in a while but they’re pretty useful.

[misty surge]

I’m going to definitely get a more published version, so we can just update shaders while in game. No need to restart. I’ll keep everyone posted!

[misty surge]

Saturn

I may add one moon to mars i forget it has an atmosphere.

[sacred jackal]

someone got a DepthWrite example? i cant find shit about it 😭

[midnight hatch]

Nah you're good as hell

[misty surge]

https://github.com/EthanTheGreat/gm_shaderbuild/tree/main

There, I hope I explained it enough, but ye

[cosmic perch]

that solution i buggy

i noticed that it works but sometimes it crashed for me or did weird glitches

[misty surge]

I rewrote it.

[cosmic perch]

no i didnt use it, i noticed that u can do some magic to reload the shader

[misty surge]

Yea dude

[cosmic perch]

found it by luck, worked but sometimes didnt

[misty surge]

It works a lot better now.

[cosmic perch]

so i went to stick with just reloading game

[misty surge]

Yeah, this works 100% of the time.

[cosmic perch]

even if u change whole code?

[misty surge]

Yes, the system had some issues. I just worked it out better on my end, it works flawless.

Major improvement.

Instead of keeping it to myself, I implore you to check it out.

works with vertex shaders too, but I haven't tested that too much.

[cosmic perch]

whats the trick i cant follow in ps1

[misty surge]

Then when you're ready to publish just use the masic ones.

[cosmic perch]

does it just replace file contents

[misty surge]

The order it does it is, compile, finish, update vmt local copy locals to game path, rewrite shader's names to proper new ones, and change the vmt last.

I forgot to include one more file shoot.

[cosmic perch]

oh ok that works then, new shader basically

rewriting same file name works if everything is just the same but u only change values

[misty surge]

Yup

[cosmic perch]

thank god i dont have to touch shaders again

[misty surge]

All derrived from the name itself.

So it needs like erm

atmosphere_vs3x or _vs30

so it decides which one it is.

updates the $pixelshader

and $vertexshader

IF setup, I can like literally change 1 number, relax and see the update LIVE

If you wanna publish it, just do it manually when you're ready.

Ideally, what it's doing pretty nicely is it's seperating the local from the exported gmod path. So I can work within a scope outside of the gmod's directory.

If you decide on using it, lmk if you have issues. I'll fix them. I want people to use shaders easily verses manual. This will save everyone time. I hope this helps.

[cosmic perch]

unforun i dont touch shaders anymore, not sure if anyone else is writing shaders

[misty surge]

Exactly, hence why I think this idea should really be considered as a standard for gmod shader development. But I think it’s possible to just allow ourselves easier access.

[misty surge]

For all purposes, this is literally me changing the shader by 1 number each time building and compiling in the background.

4 compiles in like 20 seconds, helps instead of the annoying style we're forced into.

@jovial tide Maybe you can take a look at the repository maybe I'm missing something.

[misty surge]

Fixed up the readme

[misty surge]

How it's lookin rn

[graceful lynx]

It looks good

Is that a model, or entirely shader code?

[misty surge]

No models, just shader math

[graceful lynx]

Neat!

[hollow arrow]

Well im kinda interested in, but not sure about the actual use, per exemple i would like to recreate a toon shaders, but how do i change lightning with the screenspace general since it's already have vertexLitGeneric light and shadow ?

Maybe @misty surge can help me

[finite quarry]

anyone got an up to date guide on getting shader model 3.0 pixel and vertex shaders compiled and running in the game?

i haven't been here in some time

[misty surge]

When we attribute the screenspace shader, it lacks depth calling which is important for 3D geometry.

The work around is to cast DepthWrite, and use that to sort of resolve this issue of lacking depth.

Normally in 3D shaders, we have access to more buffers, in this case we’re limited to what we’re offered.

With all this said and done, it is indeed possible to use 3.0 correctly, but again you may need a work around for depth as it currently stands.

[misty surge]

If you want more lighting techniques, I recommend you use DepthWrite or any depth buffer as it’s required for 3D shading & lighting.

You could use a normal map as well, or other methods specific to light casting

Lighting can use normal mapping, bump mapping or depth mapping and each one has tradeoffs and benefits between each other.

[vapid reef]

Have you tried messing around with the WRITEDEPTH DEPTHTEST VERTEXTRANSFORM params yet?

[misty surge]

Hmm, I don’t think I’ve tried that yet. You got some incite? 😏

[finite quarry]

Alright thanks for the info

[vapid reef]

all i know is that when i asked rubat to give me a list of all the shader params is that those were missing from the wiki, it now contains all the shader params the screenspace_general has https://wiki.facepunch.com/gmod/Shaders/screenspace_general

[finite quarry]

in any case, even if I can't get vertex shaders working, post process screenspace ones are pretty cool and fun in and of themselves

[vapid reef]

all you need should be loading it through VERTEXSHADER and enabling something like $model

[misty surge]

Wow, that’s amazing dude.

[finite quarry]

i'll give it a try at some point, i wanna recreate some of the EGSM example shaders

[misty surge]

Must try it when I get home I can’t believe I missed that.

That’s epic stuff. @vapid reef

Ty

[vapid reef]

More info here

[vapid reef]

added https://github.com/EthanTheGreat/gm_shaderbuild to the wiki too, since its handy, im gonna try to keep up adding useful stuff to that page so i dont have to go through the depths of this discord again

[finite quarry]

is the NeedsDepthPass fix on x64 yet?

NPCs still seem to turn invisible for me

[vapid reef]

i dont see a build deployed yet in the commit channel

[finite quarry]

yea seems like it isn't

is there anything special to do differently when compiling 3.0 pixel shaders? currently just interested in screenspace 3.0 pixel shaders

2.0b is pretty limiting when it comes to things like sample counts for blurs

[jovial tide]

you must pass a sm3 vertex shader

[finite quarry]

i see

[vapid reef]

gonna document that

[misty surge]

I will be here if anyone got suggestions/improvements to the code so we all can make shading easier for everyone else.

[dusty linden]

https://tenor.com/view/gif-gif-19494561

[finite quarry]

should the pixelshader still have the ps20 prefix even if it's 3.0?

[vapid reef]

not sure, try both and see what happens, ill update the wiki with the findings

[finite quarry]

doesn't seem like it

i don't know

my shader doesn't seem to load either way

spits out an error in console that it couldn't load when it's ps20

and i am supposedly giving it a sm30 vertex shader

oh well

someone smarter than me will figure it out

[misty surge]

I use _ps30/20 and specifically _vs20. What’s the error populating the terminal?

[finite quarry]

oh no, the shaders compile fine

it's just that they don't load

but idk, i'm trying to do something way out of my scope

https://www.moddb.com/tutorials/source-engine-implementing-simple-ssao-shader-part-1

porting this

[misty surge]

Oh, I see. It’s giving you that red error.

[finite quarry]

only if it's with the ps20 prefix

ps30 prefix gives no error

but doesn't load either

[misty surge]

Lemme see when I get home I’ll show you my ssao perhaps.

[finite quarry]

oh you've already made ssao?

[misty surge]

Yeah, first thing I did but I don’t remember too much what I did.

[finite quarry]

that's cool

guess i don't have to bust my ass trying to make it work then

would like to learn from yours tho

just to see how i can get sm3 to work

[misty surge]

NP, try to figure it out. And when I get home I’ll post it up on GitHub too.

[finite quarry]

you'll get showered with steam awards if you upload it to the workslop

[misty surge]

Even if you can’t— it’s better to learn from your own mistakes 🙂

[finite quarry]

get all the animated anime girl avatars you want

[misty surge]

For at least shader stuff, I wanna provide code. Workshop isn’t really meant for code uploading, but alas I got you with a repository as soon as I make it home!

[finite quarry]

I meant if you package it as a toggleable shader effect in the Post Process tab

[misty surge]

Oh I see, well that’s pretty simple stuff.

[finite quarry]

Yea

[finite quarry]

yayy the fix is in!!

[vapid reef]

Pictured: Average UE5 game

[shadow shuttle]

lol wat

[finite quarry]

nah, not enough TAA ghosting and dithering

[graceful lynx]

*insight

“Incite” means “to provoke”

It’s a silly language with duplicate words

[misty surge]

Lmao true ;-;

[surreal parcel]

conflicting addons

[misty surge]

Black hole WIP

[misty surge]

https://kelvinvanhoorn.com/2021/04/20/supermassive-black-hole-tutorial/

Incase anyone's interested.

[shadow shuttle]

thats gemmy 💎

[exotic willow]

#1327362795616075939 message
It was literally done like 2 months ago.

You masterfully fail to notice the inscription NON DLL

[wispy quartz]

The irony that those parameters don't work, they are broken as ficool2 staten

[exotic willow]

The fact that HE ALSO HAS A VANILLA GMOD without any dlls, for example?

[wispy quartz]

That was vanilla gmod

[exotic willow]

him too.

no.

[wispy quartz]

Won't work, since you only have 8 bit depth buffer.
For somewhat descent ssao you would have to use 16-24 bit deptg buffers

He used the same egsm shader, and then patched it to work with screenspace_general

My friend helped him to do it basically

[exotic willow]

Okay, it clearly says that this is for the workshop, how do you propose to upload to the workshop what EGSM requires?
Say install dll and violate gmod's TOS?

[wispy quartz]

Most of the shaders.
The screenspace_general ones lack multiple texture inputs (4 is not enough), proper depth support, only 16 bit depth/normal/worldpos buffers at max (and hacky way too)

So he only made fxaa, and etc to workshop.
The rest of them will be egsm

[finite quarry]

not like I could get sm3.0 to work anyway

was doomed to make a boom boom in my panties

[wispy quartz]

Make 3.0 vertex shader, and then make 3.0 pixel shader.
Looks like you are building them with default bat ficool2 provided.
You need to edit that bat and change -ver 20b to -ver 30. Same stuff with vertex shaders

[finite quarry]

i did

[wispy quartz]

Then tell me the output pls

[finite quarry]

still didn't work though, i tried just recompiling one of my working 2.0 shaders to 3.0

what output

[wispy quartz]

....Well, what is resulted?
Shader with ps20 postfix or a 30 shader which is not drawing?

[finite quarry]

30

not drawing

[wispy quartz]

The problem is that you are probably using ficool's PS_INPUT
You should use the same INPUT as the VS_OUTPUT you've provided

I.e like this.

[misty surge]

Black hole was the hardest shader so far to get right.

[neat terrace]

looks very nice

[misty surge]

Here, a picture doesn't show the anims

[neat terrace]

oooooooooohh that's sexy

i love the swirling of tbe accretion disk

[misty surge]

Gravity pulls the light around the blackhole, hopefully I can add some layers to it and have different colors.

[zinc sedge]

"Gravity pulls light around the blackhole"

are you referring to what the accretion disk is?

or just the warping effect

[misty surge]

I’m still trying to figure it out myself, but the light casted from the sun should technically be pulled into it? Then the Doppler warping ring. There’s so much to this I still don’t quite understand.

[zinc sedge]

I can try to make it a little less confusing, the accretion disk is just matter from various objects like stars and debris being pulled into the black hole. It glows because it is so hot from all the matter in the disk rubbing and colliding with each other at high speeds as it accelerates into the black hole

at least that's what I can summarize from my understanding

[misty surge]

That was very helpful. This is what I’ve been going off of.

[zinc sedge]

some crude drawing to try to illustrate what the light is doing on the far side of the black hole's accretion disk
the gray lines are light from the disk

[misty surge]

That’s crazy if you think about how it just sucks up everything like that.

[zinc sedge]

this section is the bottom of the accretion disk btw

so you're seeing both the top and bottom of the accretion disk

[misty surge]

Yeah! So that’s what I think I need to fix, mine is very tiny compared to this, the banding too looks to be improved. Thank you for assisting this is helpful

[zinc sedge]

SpaceEngine has some really nice black hole simulation stuff if you want a real time interactive thing to look at

https://youtu.be/Rx4-XYEq4cM

video from when it was being developed

the disk rotates faster as the camera gets closer due to seeing more recent light from the disk, and it moves in reverse because you're seeing older light

this effect is so obvious due to moving faster than the speed of light iirc

[graceful lynx]

I really try not to think about it, honestly. Space is cool, but full of danger that we have literally no ability to control. Makes me feel safer to ignore it

[errant nacelle]

it's stuff like the bootes void that scares me lol

[sacred jackal]

how do you get the lighting data?

[finite quarry]

i didnt

that's a post process shader using the full depth buffer

i have not gotten (or tried since last time) to get vertex shaders to work for me, and subsequently models for shaders

[zinc sedge]

such is life. There's a lot we feel we can control but the reality is your heart could just stop tomorrow from some condition you had no control over nor prior knowledge of etc etc

[misty surge]

Yes to this. I can probably do a low quality one easily.

[zinc sedge]

you gotta make the light physically warp to get the effect accurately. Your black hole just distorts the disk from what the camera can see. But the light is actually warped in such a way that appears to bend the disk toward the camera

idk if raytracing or something like it would be possible with these shaders. I'm sure you can figure out something convincing!

[misty surge]

Lol

[wispy birch]

it devours

[misty surge]

Some volumetric fog this time around.

[timid pumice]

It's still graphical expensive to render?

This screen space shaders

[misty surge]

Not really expensive, just very tricky to work with direct x 9 and it's memory limitations. 3.0 does a great job of resolving some issues, even implementing 3D samplers, but realistically, if I went full detail, high res textures, it would be too expensive to play on, but the rendering quality would look amazing.

256x256x256 would need to be a 512x512x512 or runtime generated for the precision to work how you see unreal. But with DX11, they have quite more resources to produce more detail without moderately sized limits.

[finite quarry]

playing around with my shader post processed hud https://youtu.be/BvyE2EdVb9c

[errant nacelle]

never thought I'd see chromatic aberration that was good to look at

[finite quarry]

subtle chromatic aberration on hud elements has always (in my opinion) looked really good

[errant nacelle]

never even seen it on a hud before

[finite quarry]

seems to be getting popular these days with games like lethal company and repo

at least i think it's in those

i'm sure i've seen it elsewhere but i can't remember

[errant nacelle]

never noticed it on lethal company and I haven't played repo yet

[finite quarry]

not sure about lethal company but repo totally has it, but it looks even more subtle than mine

also has that slight bloom

and i think it's got the fisheye too

[lunar folio]

I like the hud & UI in repo, the main menu and typing in chat is so satisfying

[finite quarry]

yeah it's nice

[finite quarry]

snapped a pic myself and yeah it definitely has prominent chromatic aberration on the ui

seems to about on par with strength as mine

[misty surge]

I decided to post a seperate thread on black holes in WAYWO, I think the blackhole thing is basically done (at least for now).

[steep river]

anyone know how to implement screenspace ambient occlusion

[wispy quartz]

Use depth buffer via Ethan's depthwrite method.

Write a shader that makes SSAO using original Crytek's algorithm which used only the depth buffer

[placid stream]

¿what does $CULL do (it's off by default)? like I understand the concept of culling it's just that I don't know if it means cull as in stop rendering full stop OR cull as in enable culling outside of view

[steep river]

Can you send link to github for that method?

[jovial tide]

toggle backface culling

[snow cradle]

Hi

How to fix depth buffer

i use $texture1 "_rt_ResolvedFullFrameDepth"

[snow cradle]

not egsm

.vcs

[wispy birch]

_rt_ResolvedFullFrameDepth has very little precision

[misty surge]

Ima work on an example for you guys, with the help of @snow cradle

I’ll publish my SSAO so people can just refer to the example.

I use DepthWrite with 16bit depth, helps a lot.

[snow cradle]

https://tenor.com/view/patrick-bateman-talk-gif-24726831

[misty surge]

https://github.com/EthanTheGreat/gm_depthwrite/tree/main

This is just for higher depth writing, the SSAO shader I use can work with this quite well but it's not finalized yet, so I'll leave it out for now.

This should allow anyone to downsample, or upgrade their render-targets.

[snow cradle]

Thansk @misty surge

[misty surge]

You're very welcome sir.

Thank you for teaching me.

Back to modeling I go! (yay)

[snow cradle]

changing ssao settings

@keen coral
Let's work

[misty surge]

Yup that looks amazing

Makes me wanna go back into shaders, darn it lmao

[snow cradle]

@misty surge can i upload addon on workshop

And add u to autors

Add me https://steamcommunity.com/id/amede/

[shadow shuttle]

hi that ssao is very good nice

[misty surge]

Yes

OFC dude.

[snow cradle]

https://www.youtube.com/watch?v=vxVll2GSqgI
SSAO test for workshop (ru video)

now i will make video with en lang

[graceful lynx]

It's completely fucked up that you can just make SSAO and put it on the workshop now

We live in the future

[icy plume]

its evil almost

next thing you'll tell me is that we'll see pbr on the workshop just like that

most evil of timelines

[snow cradle]

https://youtu.be/lSPAujEo9Jc

en version

[shadow shuttle]

hey now, dont give me hope like that

[snow cradle]

https://steamcommunity.com/sharedfiles/filedetails/?id=3453258660

[midnight hatch]

Thank for the work brother

[raw ferry]

woah

is it possible to make matcap shader with this custom shader feature? like envmapsphere but not unlit and not broken in dx9

[snow cradle]

Volumetric clouds (already compiled on .vcs)

it takes 5 min

I will make params into q-menu and then upload it today

[rain marten]

Anyone managed to get that technique working with a orthographic view?

Im trying to do shadowmaps but it looks like DepthWrite does not like to render a ortho view from the light

[snow cradle]

https://youtu.be/DCjXmKWTSAk

i will make now video on en language

[snow cradle]

https://youtu.be/S5tMOi5jt2Y

[rain marten]

like so

it works fine with a perspective view

[misty surge]

https://wiki.facepunch.com/gmod/Shaders/screenspace_general#VIEWPROJMAT

idk if this works but maybe this can be changed here.

[rain marten]

oh im using the built-in DepthWrite shader, its not a custom screenspace_general one

im basically doing the same thing you did on your gm_depthwrite repo, but modified to render a orthographic view

[snow cradle]

https://steamcommunity.com/sharedfiles/filedetails/?id=3453386337

[steep river]

@snow cradle parallax mapping next?

[snow cradle]

i wanna it but idk how to add lightmaps support

we have uv for lightmap texture

but idk how to get lightmap texture for mat/brush etc

[steep river]

I think sdk pbr has lightmap support for parallax maps

maybe you can get a fix from there

[snow cradle]

we have only: 1. LUA. 2. HLSL

Data in the vertex shader about the lightmap binding comes from C++

Perhaps there is a way to optimally get lightmaps and assign them to each face from scratch. And correctly.

How can I calculate all this so that it is simple and easy at the end. And doesn't affect the fps.

I know how to get _rt lightmap via RenderView, but it's a hit to fps.

But the method is simple

[shadow shuttle]

Did someone say parallax mapping 👁️

[snow cradle]

mat_fullbright 2
Replaces all albedos with a grey tone, leaving just lighting information.

idk why it not work on gmod

https://developer.valvesoftware.com/wiki/Lightmap

hmmm

it work on gmod

but it does not work using render.SetLightingMode( 2 )

[wispy birch]

it uses fullbright directly

[wispy quartz]

Use WriteZ shader to write depth, and then use custom screenspace_general shader to write depth as a color

[graceful lynx]

Put in #addon-releases so everyone sees

[turbid crystal]

Just curious does making shaders require any special software or can it mostly be done in like VSC or something.

I've noticed some unfamiliar file types in a shader addon I downloaded to get a rough idea of what a shader addon looks like.

[errant nacelle]

https://github.com/ficool2/sdk_screenspace_shaders?tab=readme-ov-file#vscode

[turbid crystal]

Ah, I see, cheers!

[snow cradle]

Parallax trying test

[timid pumice]

Oh My god that looks so freaking cool, good job m8

How is the compiling time or the time it takes to refresh a shader

I'm really tempted into trying to do shaders

[snow cradle]

idk why but worldnormals and tangent are black (like 0 0 0)

i set normal like float3(0,1,0)

like floor

idk but worldnormals works 4 week ago

mb i need do like this

    vNormal = normalize(mul( v.vNormal, ( float3x3 )cModel[0] ));

    o.vWorldNormal.xyz = vNormal;

or this

bool SKINNING = false;

    float3 vNormal; float4 vTangent;
    DecompressVertex_NormalTangent(v.vNormal, v.vTangentS, vNormal, vTangent);
    float3 worldNormal, worldPos, worldTangentS, worldTangentT;
    SkinPositionNormalAndTangentSpace(SKINNING, v.vPos, vNormal, vTangent, v.vBoneWeights, v.vBoneIndices, worldPos, worldNormal, worldTangentS, worldTangentT);

or bool SKINNING = false;

idk

input:
float4 vNormal : NORMAL;

[snow cradle]

1-3 sec if int value of cycles are static in code

and >1 min+ if cycles using unroll

and made like $c0x etc

Like my SSAO

[steep river]

@snow cradle is that a screenspace effect or actually vertex shaders

parallax

damn impressive bro

how did you scale height

u use heightmap or normalmapa?

[exotic willow]

Via shader, no? Screenspace is screenspace, screenspace doesnt have normals
Also we have forward rendring...

[neat terrace]

shaders are both vertex and screenspace

[wispy quartz]

Just use writeZ......

Literally, in your case you already use lightmap pass, you can already copy it's contents to another RT and just use it's depth and render stuff again

[graceful lynx]

Sounds like you're writing that normal info to the water reflection Render Target

I haven't done anything with it yet, but I really think some interesting visual effects could be created by intentionally modifying the reflection and refraction Render Targets

[wispy quartz]

..Like disable it meheheheheh
For some strange freaking reason, there is no way to actually know if you draw in water's RT

[steep river]

anyone got example how to use screenspace_general for vertex shader

[wispy quartz]

i mean, there is 2 arguments for DrawOpaque/Translucent, one is for depth (shadows, etc), second one is for 3d skybox, but there are no any way to get that

[wispy quartz]

https://github.com/srlion/RNDX

[graceful lynx]

How do you mean?

[wispy quartz]

For an example, for blur rt creation, which caches for certain amount of time
And in some cases it will literally cache wrong rt (water one), resulting in broken blur

[graceful lynx]

render.GetRenderTarget():GetName() will tell you which Render Target is currently being rendered

[steep river]

no i mean like putting it on models and worldspawn

instead of the screen

[wispy quartz]

I think it will return nil for both cases, since they are set from engine side