archived-shaders

[mental bone]

Like I said it has nothing to do with the depth buffer. It calculates the distance to the object in clip space and the vertex world pos

[slow bear]

Now I get it, thanks @mental bone @regal stag

[frank rivet]

Shader Graph ... it looks pretty, but I don't get it and the tutorials are all youtube videos that make me want to scream after 5 seconds. Is there a decent web page plain text no sound tutorial for it?

[tranquil saffron]

TMP (TextMeshPro) uses TMP_BaseShaderGUI.cs and TMP_SDFShaderGUI.cs to draw the material editor. Changes to these are not retained during restarts of Unity. How can custom versions of these editor Inspector drawers be made?

[tranquil saffron]

It's not ready to use. Avoid it if you can.

[frank rivet]

OK, fair enough

trying to figure it out has led me down a rabbit hole of URPs and HDRPs and all sorts - I haven't used unity for a few years I feel like I've missed a few things

[tranquil saffron]

Ignore their claims of URP/HDRP and SRPs being production ready. They're miles from it. Use Unity as you would have used it 5+ years ago to have a good experience. Even download 2017.LTS to hold yourself in that frame of reference and context until you need something in the newer versions. You'll get far further this way.

[frank rivet]

That's the impression the forums are giving me too

[regal stag]

I have a post here https://www.cyanilux.com/tutorials/intro-to-shader-graph/ along with other text based tutorials on that site if interested. Can also check out https://danielilett.com/ and https://minionsart.github.io/tutorials/ has some SG tutorials too.

[frank rivet]

thankyou Cyan. I think I'm going to back off from it until it's a bit more mature and make shaders the old way though

[tranquil saffron]

Until they gain the good sense to think about visual editors in a holistic sense, in conjunction with coded shaders and vfx and animation and UI all being part of a properly considered creative experience, ignore everything new they roll out... including everything since 2018. It's been an absolute debacle.

[frank rivet]

Yah, I prefer editing text. I also prefer editing my code in a way that my source code control system understands.

[tranquil saffron]

the good news: Moore's law. it's meant that much of the old Builtin is performant on modern devices. And there's a huge array of knowledge from the old ways of using shaders and lighting that's still pertinent and accurate because they put Builtin Renderer on ice once they started with the SRPs

[tranquil saffron]

I hate writing code. But the Unity efforts at visual representations are so bad I'd rather code.

[frank rivet]

my experience so far with visual editing has always been that I'd rather code

even when designed specifically for small children the small children come back and say "we'd rather just use python"

[gloomy quail]

I'm sure my question is stupid but is it possible to "export" a blender eevee shader made with its shader graph, to unity ?
Or can i just reproduce the shader from Eevee into unity ?

[regal stag]

You'd need to rewrite it, with Unity's Shader Graph (or other node based tools like Amplify Shader Editor), or via shader code (cg/hlsl)

[gloomy quail]

Ok, i see. I'll try to reproduce it into unity shader graph then. Is it easier with amplify ?

And is it hard to do for someone that never made any shaders but know programming ?

[regal stag]

They're similar. I haven't used Amplify but I think it exposes a bit more things than Shader Graph and it can be used with the built-in RP. Shader Graph can only be used with built-in with 2021.2 I think (which is a beta version, not properly released yet), otherwise you'd need to be using URP or HDRP.

[gloomy quail]

I use hdrp. I'll try my luck with shader graph then

Thanks

[mossy viper]

it seems like I've somehow made my ray tracing function bidirectional xD
Any ideas how I messed up?

here's the functions I use for the ray generation and checking:

Ray GetCameraRay(uint2 screenpos){
    //convert pixel coordinates to a [-1, 1] range
    float2 uv = PixelToUv(screenpos);

    float3 origin = mul(_CamToWorld, float4(0,0,0,1)).xyz;
    float3 direction = mul(_CamInverseProjection, float4(uv,0,1)).xyz;
    direction = mul(_CamToWorld, float4(direction, 0.0f)).xyz;
    direction = normalize(direction);

    Ray r;
    r.origin = origin;
    r.direction = direction;
    return r;
}


//Check if Ray `r` intersects with AABB `box`
RayHit CheckIntersect(Ray r, uint box){
    Box b = UnpackBox(box);
    float3 imin = (b.min - r.origin)/r.direction;
    float3 imax = (b.max - r.origin)/r.direction;

    float3 tmin = min(imin, imax);
    float3 tmax = max(imin, imax);

    float cmin = max(max(tmin.x, tmin.y), tmin.z);
    float cmax = min(min(tmax.x, tmax.y), tmax.z);

    RayHit result;
    result.hit = (cmin <= cmax);
    result.distance = cmin;

    return result;
}

[tranquil saffron]

There have been very few (less than a handful) good visual abstractions of coded sequences. Part of the problem has been the engagements of two types of fools. Traditional coders trying to represent what they do visually, and non coders trying to imagine what coding might look like visually.

Unity's ShaderGraph didn't even start with any effort to abstract, let alone understand the entire (quite small) market of visual material editors and shader editors of the recent past. And it is, so far as I can tell, completely unnecessary.

The fact that most users of 3ds Max prefer the classical material editor over what is otherwise a quite good flow mechanism for creating materials should have indicated that there's more inherent paradigms pre-existing within Unity suitable to making a first step towards more accessible shader creativity and editing.

[tired canyon]

personally I think the visual graph style does translate better to folks that can'

can't code

especially with the realtime previews

over time with more builtin nodes/more available tutorial resources I think shadergraph will be a win for people that otherwise would have low ability to approach something like writing a shader

Professionally I work on a product that does a similar thing for data processing, and we use a node/graph based language to expose the ability to manipulate data to less technical folks and it works well.

[tranquil saffron]

This is the low standards problem, referenced by the commentary on the two types of folks making graphs for this supposed audience. For them, it's presumed that anything is better than code, so any visualisation is "good enough". This is a folly.

[tired canyon]

Well it's true

There's a large segment of people that don't want to look at code

With the custom function nodes it's really not hard to just write code

Maybe long term they need to make it even easier for power users

[regal stag]

You'd need to use stencils to do something like that. e.g. Have the alpha clipped mesh material/pass write a value to the stencil buffer (Ref 1, Comp Always, Pass Replace). Then render the other material/pass with same reference & Equal comparison.

[grand jolt]

How to make wet Shader for terrain using URP. There is no tutorial.

[mossy viper]

I often see questions phrased like this. Perhaps you shouldn't be looking for a "how to do this very specific thing so I can copy and modify"-tutorial, but zoom out a little and try to acquire some more general knowledge.
Think about which characteristics that makes a material seem wet, and see if you can learn some techniques that you can use to achieve that in your shader

[mossy viper]

I've been trying to limit my ray tracing shader to a specific area of the screen, but I'm getting some weird results.
With a Rect rect that i want to check within, I dispatch with thread groups of rect.width/threadCount and rect.Height/threadCount
Then I set a shader variable "pixelOffset" to rect.min and get the pixel coordinate with

uint2 pixel = id.xy + pixelOffset;

did i miss anything?

[teal breach]

I have a strange bug where some shaders defining SV_Depth on metal refuse to compile. Has anyone else encountered that?

there's no mention of it being unsupported on Metal in the manual

only thing I can think of is that the broken shader is "RenderType" = "TransparentCutout" and the working shader is "RenderType" = "Opaque" - it makes sense that transparent cutout can't define SV_Depth, but its infuriating it only throws the error on Metal if so

[surreal trench]

anyone have any experience using "UNITY_SAMPLE_TEX2DARRAY_GRAD" I can't seem to use it.. I'm always getting undeclared identifier errors

[somber slate]

is it possible to make an image effect shader use the post-shader versions of each object instead of their original meshes

[somber slate]

nvm

[safe gate]

so right now i have this cel shader, and it's fine, but how would i go about seperating the shadow into 2 or more bands, if possible?

i'm currently using a smoothstep node to seperate it into two

ping me if you got smtn

[devout quarry]

@safe gate posterize node

[safe gate]

thx

[strong merlin]

Anyone know how to fill the cutaway area from an alpha clip in Shader Graph? Something like this

[devout quarry]

@strong merlin for something like this, I did this before by not using alpha clip but moving down the top vertices in the vertex shader, and coloring them based on whether they were moved or not

[strong merlin]

Ah, that's a good idea. In my case I want to maintain the colour anyway, so one less thing to think about. I imagine that's done by passing the clip plane normal position (so just the y value for me) into into the vertex position?

[meager pelican]

IDK for sure, but I doubt it's as simple as "+ pixel offset"....depending on how you calculate that.
I'd bust it up into full screen x and y values, then do the calc, figuring out the pixel as real-y*texture-width + real-x. So your rect xy is just there as your "loop" counter. IDK if that makes much sense, it's early for me. lol.

So it's probably real-y = rec-y + y-offset, and real-x = rec-x + x-offset, and THEN multiply out using the width * real-y + real-x.

Test it by coloring your rect red or something and checking the result (maybe in frame debugger if you output to something like a render texture/target).

[strong merlin]

@devout quarry worked perfectly

[mossy viper]

Thanks a lot for your input!
Turns out I'm actually just retarded. I use the total screen size to remap the pixel coordinates to a [-1, 1] space, and I had somehow set both dimensions equal to "screenWidth", causing calculations everywhere else to be messed up.
But hey, on the bright side it only took me like 1-2 hours to realize!

[strong merlin]

Is there a way to modify the shader stage order? With the same thing I was doing above, I am modifying the position, but I need to modify the alpha based on the original position

[eager folio]

I have a kinda silly idea. What would be the best approach(in URP) to do a geometry shader I can put on everything(similar to 'curved world') shaders that would work with a ortho camera and allow scaling of geometry based on how far from the camera a vertex is?

Just scaling towards the center of the screen, or...?

[meager pelican]

You save the original position and pass that in the interpolators to the frag, before you modify it.

Or possibly calc the alpha in the vert stage if it is the same for the polygon.

If you're in shader graph, see the recent section on custom interpolators

[strong merlin]

Using shader graph yeah. I'll have a look up of that

[clear vector]

Hi all. Is there a way to use variable frame duration with flipbook node in shader graph? In my project i have sprite animation i've implemented through flipbook node, but i want to specify each frame duration.

[elfin dragon]

my shader looks different when i export to WebGL. part of it glows when it's in editor but the glow gets removed. is that a normal thing?

[eager folio]

WebGL doesn't support quite a few things

[mossy viper]

In compute shaders, can [numthreads(x,y,z)] be set dynamically or is that a meta/compile time kinda thing?

Would you need to use indirect dispatching to do that?

[elfin dragon]

that's good to know, thank you. i'll see if the glow shows up on desktop export

[meager pelican]

Don't use _Time, but pass the time in yourself. Or the offset. Whatever.

[meager pelican]

AFAIK, it's hard-coded.
So to the 2nd question, no. DispatchIndirect is more about what kernel gets called with what data.

[runic pendant]

I want to make a 3-way lerp function so I made this:

The problem is that it doesn't work with 0.5 and 1 because of the fmod() portion

Adding a "+ floor(value)" to the fmod() solves the 1 but not the 0.5

[devout quarry]

@runic pendant this helps?

[runic pendant]

Let me try to write it out

[devout quarry]

Yeah sorry for the nodes but it's a solution from remy that worked for me, it should translate easily to code

[strong merlin]

Had another problem with my vertex-clipping shader @devout quarry. I'm using the position (object) node in a bunch of the criteria, and in the preview window it looks fine, but when put into the scene parts of the shader calculate the wrong position by a factor of x2. Any idea what the cause might be?

[devout quarry]

@strong merlin not on PC right now so can't check my code but I feel like position in object space should work? Move it in the y direction by its height relative to the center of the object

This was my result, this is the kind of thing you're trying to achieve right?

https://twitter.com/alexanderameye/status/1396825479601168389?s=19

Alex Ameye (@alexanderameye)

Working on some new mesh-slicing tech 🍊🔪 #madewithunity #vfx #gamedev https://t.co/2kR6AuXbRA https://t.co/15pYhxPVX9

Likes

197

Twitter · May 24, 2021, 1:48 PM

[rare charm]

Anyone have a shader for vertical fog a la Monument Valley? I've tried a bunch I've found and none work

[strong merlin]

Yeah that's exactly what I was trying to do, except I only need it from the y axis. Not sure why mine isn't working then. I'll load up my graph tomorrow when I'm back on my PC, but it works perfectly in the preview

[devout quarry]

@rare charm if you use urp try this https://www.google.com/amp/s/cyangamedev.wordpress.com/2019/12/05/fog-plane-shader-breakdown/amp/

[regal stag]

To add to this, if you're using orthographic projections like Monument Valley too you'll need to handle depth based stuff differently. This may give some hints to achieve that : https://www.cyanilux.com/tutorials/depth/#mesh-orthographic

[rare charm]

I am using an ortho camera. I know almost nothing about shaders, but an asset I tried had an ortho option and didn't work at all either so 🤷‍♂️

[grand jolt]

Hi! I've a sprite renderer and a tilemap renderer with a custom shader, the tilemap renderer seems to be taking light completely fine but the sprite one doesnt seems to be inverted https://i.imgur.com/qp59FWL.gif

Do you guys know any fix for this?

Here's the shaders, shadergraph code

[rare charm]

This produces exactly nothing when I copy the graph into my project.

[tacit parcel]

you can just create a shader that blends color based on worldspace height (y). Faster and no need for depth buffer

[jovial rapids]

hi, i have what i think is either a simple problem or an intractable problem, but I'm a layman with shaders: what i want to do is take two meshes/triangles in the same space with similar shapes, but then have a shader render one in front of the other. this is for drawing procedural roads on procedural terrain, but i'm thinking a similar process would be used if you wanted to put a graffiti tag on a wall (triangles in the same place but one's in front). I've read this might be possible and is simple shader code but I can't tell if i've misunderstood it

[rare charm]

Wouldn't that require me to use that shader for every object in the scene?

[empty wyvern]

I'm trying to make a shader to shift colors in a specific way (as opposed to just changing the image color, which doesn't do it quite right). However, I'm getting an artifact, even when it does nothing.

fixed4 frag (v2f i) : SV_Target
{
    fixed4 col = tex2D(_MainTex, i.uv);
    return col;
}

The first image is what I'm getting and the second is what it's supposed to be (i.e., the transparency is causing issues)

[rare charm]

So in typical Unity fashion I changed nothing and now it works. Kind of. In my Scene view it looks great, in my Game view it doesn't blend at all...

[steep lodge]

Is it at all possible to make a cutout have alpha for fade-in/out?

[empty wyvern]

I got RenderDoc up and running and was able to check the values for the pixels. They're as they should, but they don't match what I'm seeing. For example, the main area, which is rendered correctly, is 0.98039, 0.86275, 0.76471, 1.00. As for wrongly rendered stuff, the darkly colored stuff at the bottom of the first picture comes up as 0.2902, 0.23529, 0.19216, 0.00. 0 alpha, so it shouldn't be showing. At yet it shows up.
Updating the colors when the alpha is 0 should, as far as I understand, do nothing, but it very clearly does. For example, I can do this code and end up with this picture:

fixed4 frag (v2f i) : SV_Target
{
    fixed4 col = tex2D(_MainTex, i.uv);
    if (col.a == 0)
    {
        return fixed4(1, 0, 1, 0);
    }
    return col;
}

[somber slate]

are you sure it's not bc the background of the image is black and it's showing bc the pixels on top have 0 alpha

[empty wyvern]

The color replacement like I did in that latest picture wouldn't have worked if it was that. It's rendering as opaque.

[tacit parcel]

Yeah, I guess so, but it's not a bad thing I guess. Assuming your player and other interactable objects stay above the fog, you only need to apply the shader on the static background/level.

[devout quarry]

@rare charm depth texture enabled?

[still lynx]

Hi, I've created a custom billboarding shader that changes a sprite based on what direction you look at it using Shader Graph. I'm using a material property to add "animations" (basically just changing what part of the sprite sheet to show by feeding it a float). Is there a way to have this property be unique per instance of the material? When I change it on one thing everything else with the material changes too.

Tried to check the "hybrid per instance" box in shader graph but that seems to make setting the property in script not work (although I can read and set the property correctly, it isn't reflected in the shader)

[tranquil saffron]

Where/What is the file that generates the Builtin GUI in Editor Inspector for shaders like Particles? How does one find, access and edit this file?

[tranquil saffron]

If you change it in the Shader Graph, you're changing the Shader. If you create an Inspector Editor GUI for your shader, you can change instance properties.

[drowsy fiber]

Hi, i'm using the urp 2d renderer for lighting. How can I make a material that is a blend between lit and unlit? Any help would be appreciated!

[meager pelican]

@empty wyvernIf you're in the transparent queue, it should blend "nothing" with an alpha zero. But if you're in opaque you get that black background, since alpha zero is irrelevant.
You can use
clip(col.a - .001);
if you're in opaque to cull the output of the pixel if you wish.

[meager pelican]

You need to investigate Material Property Blocks.
IDK the status of them in SG though. Sadly. For the regular pipeline, they're per-instance. But for SG is used to be that only certain things worked for that, like BaseColor. IDK currently though, moving target.

[meager pelican]

Research "decals"....that shows the technique you've referenced. Then maybe you can apply it to the roads.

[still lynx]

Thank you for the replies! Is the info here about ShaderGraph material property overrides not accurate then? https://docs.unity3d.com/Packages/com.unity.rendering.hybrid@0.4/manual/index.html

I'm using URP and DOTS

[meager pelican]

IDK, like I said, I'm not really 100% up to speed on the "moving target" particularly if you include DOTS. So...try it. 😉 If they say it should work it should.

[still lynx]

Had some issues with implementation, wasn't as straightforward as I'd hoped (or maybe I'm just slow lol) but it seems to be working

Now I'm looking for a way to swap the texture used per material instance

[heavy stirrup]

Hey guys, using HDRP and CustomPass

how come when I input a specific value for my color(e.g. (float4(.75, 0, 0, 1))
it comes out as .88 when I examine it with a color picker

this is in a custom render texture

and linear color space

i guess it's getting converted to gamma space

[meager pelican]

If you pulled it off at all you're not "slow" 😉
Shaders are "hard" when you get into all the details.
Good show.
P.S.
Depending on your needs, you could look into a texture array, and just pass the requisite index for each instance.

[still lynx]

haha appreciate it. actually looking into a texture array right now!

[heavy stirrup]

how do you render to a 3d texture in a vertex/GS/frag shader in HDRP ? Specifically accessing the slice you're rendering to

[meager pelican]

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-tex3d
(the z value is the index into the array). As for stage, you may need an LOD version if you're not in the frag().

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-tex3dlod
in that case, z is the index, and w is the LOD level.

[somber slate]

hello everyone, i have an image effect shader but i only want it to be applied to one specific layer. i tried making a second camera for that layer but i couldn't get both cameras to display at once but still not display stuff that is covered by objects in the other layer. can i do that somehow? sorry if that made no sense whatsoever

[late sail]

hello, im following a brackys tutorial where we make 2d objects glow with emission maps, and im having some trouble adding them together, they just dont want to, the output is the same as the sprite sheet, and when i try to multiply is the other way around, i only get the emmion map

[grand jolt]

make sure u have post processing stack and necessary hardware(gpu)

but a gpu which does not support glow should not run unity so make sure u have postprocessing

*necessary effect search it up on google

[still lynx]

Hi, I wrote a shader using ShaderGraph for multidirectional textures/sprites. The multidirectional part works, but the textures are drawing over each other in-game. Would anyone know how to fix this?

As in, I'll have two sprites side by side. They look great when viewing them from the front, but if I walk to the right of the rightmost one I can see the left one drawn over the right one.

[sterile prawn]

This shader is the example "URP basic unlit shared" from https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@12.0/manual/writing-shaders-urp-basic-unlit-structure.html.

Can anyone explain why the grid is visible through the object? It's driving me crazy

[bleak cargo]

Okay, so my lighting gets messed up in the build, but looks okay in the editor. could anyone help me understand why this happens? is there an option in the player settings that causes it?

[heavy bough]

Is there any way to reduce flickering of the normals in the depth-normal texture? I'm trying to do lighting calculations for a custom cel shaded light, but the flickering normals cause weird artifacts on the edges of the bands.

[winter hamlet]

Hi everyone. So my confidence with writing shaders isnt high enough for me to write it all from code. But is there any way to include the UnityCG.cginc file in a custom node?

Or will I have to have a long list of inputs from other nodes to access information like time, location, uv, screen size etc?

Also is it possible to compile and apply shaders at runtime?

[swift loom]

I think this is a pretty common issue but I can't find anything on google somehow. Does anybody know why this flips my y-axis and how do I solve it??

https://hastebin.com/isujobiser.properties (edited link)

not sure if i should be using screenPos instead and how to get it to work

altering a texture on screen to be transparent or opaque and adhere to a grid

think this fixed it thanks ducky

                fixed4 tempCol = tex2D(_OnScreenTileStatus, (i.pos.xy + float2(camOffset.x, -camOffset.y)) / float2(_ScreenParams.x, -_ScreenParams.y ));

[teal breach]

you should also check this, and check onboth dx and ogl platforms separately: https://docs.unity3d.com/530/Documentation/Manual/SL-PlatformDifferences.html

[swift loom]

thank you

[fresh flame]

Anyone knows what might cause this blue area? It moves as I move in editor.. weird

It like cuts the water

[grand jolt]

if u could provide shader file maybe i could get a grasp of it

but u might render the water layer from other camera and paste it on top of it but wave details may end up small

so i suggest u solve it from its root(shader)

[fresh flame]

I don't think it's because of the shader because when I create a new scene and do the same thing there was no problem

Not sure what happened in that scene though

Btw here's the shader I tried https://github.com/danielshervheim/unity-stylized-water

[grand jolt]

Mhm couldnt think of what might be the problem

maybe it has got to do with camera change near clipping plane and see if that persists but nah dont think so

[fresh flame]

Already tried that, didn't do anything.

Anyway it works fine on a new scene

[grand jolt]

When i get to computer maybe i could take a look

[grand jolt]

Oh k then

[fresh flame]

Thanks though

[grand jolt]

Not a big deal

i m waiting smbdy so why not help

[heavy stirrup]

hey guys

i want to render to a 3d texture

which i see requires a geometry shader to emit vertices for each slice

how do i instance render a full screen quad using CoreUtil / HDUtil?

I'm using a Custom Pass in HDRP

all I see is CoreUtil.DrawFullScreen

maybe ill just do 32 draw calls, 1 for each slice

fk it yolo

[still lynx]

Hi, I'm having the following issue with my custom ShaderGraph shader. The textures seem to be drawing over each other (these are imported as textures and not sprites, not sure if that would cause any issues with render queue). Would anyone know how to fix?

[heavy stirrup]

is ZWrite set to On

and ZTest set to LEQUAL?

@still lynx

[still lynx]

i'll check right now

[heavy stirrup]

idk

probably have to look at the compiled shader code

i dont use shadergraph as much so can't help

[still lynx]

ah ok, yeah i just googled and as of last friday its not available in URP haha

thread was here: https://forum.unity.com/threads/zwrite-in-shader-graph.719012/

maybe i can just edit the shader file directly

[heavy stirrup]

should be able to

[still lynx]

Editing led to this effect

Is this an issue with the transparency?

It's weird because I can kinda see stuff through it

[heavy stirrup]

transparency was my second guess

[still lynx]

I suppose its like a queuing problem, where some stuff is getting sorted behind and some in front

[heavy stirrup]

actually

i can probably use a compute shader for this

and just use the thread id to specify the slice

[remote wigeon]

hi, I have a problem with the way I'm projecting my 2d objects into 3d space. In this scene a psb is being recorded by a camera and projected onto a plane using a render texture, but the texture is smearing. There used to be a setting on the right side of the screen that fixed it, but I think in updating unity it might have been removed. Do you know of any other way to fix it? -Thanks

[teal breach]

Set your shader to Opaque and use Alpha Clip

[teal breach]

(What does PSB mean?)

[teal breach]

Can you set the sampler mode on the render texture to point?

[remote wigeon]

It’s a type of 2d file, I found the problem a little earlier today by changing the background color from uninitialized to a solid color and making that color transparent

[teal breach]

by smearing, do you mean blurring of the texture?

[still lynx]

This fixed it 😮 tyty

[late sail]

does anyone know how i would add to my 2d sprites? i watched brackys video on it, but it seems to be outdated

[remote wigeon]

No, it wasn’t an issue of blurring, but rather frames not disappearing after being displayed. I have it all fixed at this point, but every action taken before was shown so you ended up with a jumbled mess. In that shot that I sent the strange object on the right side was actually three squares that had smeared across after I moved the camera

[drowsy fiber]

Hello, does anyone know how to blend make a blend between a lit and unlit material? The effect I am trying to achieve is equivalent to overlaying a transparent unlit sprite on top of a lit sprite. I'm using the URP 2d renderer 🙂

[valid dawn]

Hey all, long time listener, first time caller. Does anyone know if the custom data in a particle system is available for the trails material or how to get that data in the trails module?

[jovial rapids]

is there shader code to tell a mesh to be rendered as if it were at a different position when calculating depth? So, two meshes occupying the same space, but one is rendered as if it were at y+1, so it's rendered first when viewed from above?

like zwrite is on, but it's actually not where the vertices say they are

okay i've found 'offset' to add in a pass, which looks like what i want, but adjusting those values a) makes my polygons render bright white, b) doesn't solve z-fighting, and c) loses all the bells and whistles in the standard shader

[sterile prawn]

I'm starting with the most basic shader you can imagine, literally just outputing a single color in the frag shader. On screen (URP), it renders as transparent (can see grid through it). How do I make this opaque? What is the equiv shaderlab/HLSL to setting SurfaceType = Opaque as in the builting URP/Unlit shader?

https://hastebin.com/yoleqavohe.m

[teal breach]

Put the unlit on the emission channel and the lit on the albedo - then lerp each to black as f (for the emission), 1-f (for the albedo) - when f is 1 the unlit material is used, when f is zero the lit material is used

[teal breach]

You can use the SV_Depth semantic to output custom depth values. There is a performance cost because it must not compete the fragments before depth sorting them, but imo it's not prohibitive

[teal breach]

Sounds like the scene gizmo is being drawn over your shader. Does your shader write to scene depth?

[jovial rapids]

that's interesting, i'm looking up documentation on that, thanks very much!

[dusky stirrup]

Working on a minigame for a project. On the left is the example given by artists, on the right is the pieces of art put together. I am not able to use the Unity UI library. I need to achieve an effect whereby a portion of the red circle is rendered. The player has to click the JUMP button at the right time. I'm quite new to Unity Shaders. Any help is much appreciated. @me if you have some ideas :)

[teal breach]

boy are you in luck today: https://bgolus.medium.com/progressing-in-circles-13452434fdb9

[dusky stirrup]

I shoulda kept reading that... I saw the UI thing and clicked off of it

[teal breach]

It's a very comprehensive and detailed article 🙂

you probably want to use that as a base, and then also sample a texture (that looks like an empty stopwatch) and combine the two to produce your final stopwatch+progress bar

it will be substantially easier if you don't have hands on the stop watch

[dusky stirrup]

That's a separate game object that I'm going to spin around

[dusky stirrup]

Shouldn't I be able to modify the values in the shader here? I've not worked with shaders in unity in quite a few years.

Nvm, stupidly forgot I had ctrl+R to refresh the Imported shader

[wanton saddle]

is there a way to have different normal maps for each color channel in shader graph?

[shadow locust]

sure you just have to wire it all up in the graph

[wanton saddle]

how would you apply the normal map to the individual channels though? i don't see anything in the documentation that would help with that, afaik the only way to put normal maps into effect in the shader graph is to wire it into the normal output

[raw marten]

Is it just me or is the Rotate About Axis node in Shader Graph missing a pivot point input? I cannot get it to work in relation to actual vertex/object positions. my vertices always rotate around 0,0,0 in world space?

[sterile prawn]

I believe so. I have ZWrite on and I've tagged it for the geometry queue. It took me a while to realize, but the shader renders normally, it's only in the scene view that it shows up weird. It's super annoying to navigate the scene, but at least it is rendering as expected ... the built in URP/Unlit shader actually changes in scene view when you toggle opacity

[teal breach]

can i see a picture?

[teal breach]

I would have expected that if the vertex inputs are in object space it should be rotating around object space?

[sterile prawn]

yeah I'll link you a thread I made on the forums (this is a small thing but it's really bothering me) instead of dumping pics here

https://forum.unity.com/threads/urp-unlit-shader-transparency-in-scene-view.1143764/

[teal breach]

This is only a guess, but it may relate to how Unity produces a depth texture. I know some versions/platforms use shader substitution to produce the Depth or DepthNormals texture, perhaps that texture is used in drawing the scene gizmos? If so, maybe the substitution is only applied for Opaque objects?

[sterile prawn]

interesting, that gives me things to look into at least. I guess maybe a more fundamental question then is how do you define the object as opaque in shaderlab/HLSL? I tried looking at the source for the built-in shader but couldn't find anything obvious. I couldn't line up the inspector fields with the fields in the shader itself, so I didn't know what transparent/opaque was actually toggling. But, it seemed like that would be a surefire way to figure out the answer

[raw marten]

That’s what makes it so confusing. It’s as if it’s taking the axis of 0,0,1 and using that as a word space pivot or something

I expect it to work as in the screenshot, but I have no idea what’s making everything rotate around 0,0,0

[obtuse python]

hi, i'm playing around with shader graph in hdrp and i notice that whenever i plug something into the "base color" input on the fragment, the shaded object becomes blinding like it is reflecting the full intensity of the scene light. i've attempted to adjust my exposure to see if that helps, with no improvement. can someone explain what is happening so i can learn the root cause here?

[heavy stirrup]

can you define SamplerStates within a shader

besides sampler_"texture name"

[regal stag]

Yeah, see the "inline sampler states" section here : https://docs.unity3d.com/Manual/SL-SamplerStates.html

[heavy stirrup]

@regal stag great! thanks 🙂

[sinful veldt]

i have a question, is programming shaders better than using their nodes?

[tame topaz]

It's ultimately the same in the end, really. Do whatever is better for you.

[heavy stirrup]

how do i get the game window's screen size

Screen.width / Screen.height returns editor window size

_ScreenParams returns the camera's target texture width / height

which doesnt match up with the editor window size which is fking up my UVs lol

when using Varyings i.positionCS / _ScreenParams

[rare charm]

I'm attempting to learn some shadergraph/urp and some simple things don't seem to make sense to me. I have a plane. I give it a material/shader. That shader is simply a Scene Color node into the Fragment Base Color. It renders as a medium opaque gray. Shouldn't it look transparent?

[supple tangle]

Hey guys, how do I get this cutout effect with a TMP object without faking it?

[reef grove]

anybody know whats going on here?

I can't for the life of my figure out why it just wants to go to white

but this works

FIXED!!

I need to use float4()

[white cypress]

why would it be automatically transparent? is the alpha < 1?

[spring yew]

Hello

[regal stag]

You need to enable the Opaque Texture on the URP Asset (and should make sure graph is using Transparent surface mode)

[mossy viper]

Is there a way to find out where the GPU is spending time?
I'd like to know if a shader is memory bound or compute bound, and if it's properly executing in parallel or if it's just spending a bunch of time waiting for other threads
I realise that I'm not going to get the full "profiler" experience with the GPU, but it'd be nice with a rough approximation, or anything that could suggest if the bottleneck is one or the other

actual GPU profiling pretty much just gives me "yeah, I waited for that dude forever"
not much to go on

[quaint coyote]

There is a frame debugger and profiler is good too! Also you can try using renderdoc for a complete frame analysis 🧐

[mossy viper]

Yeah I tried taking a quick look at a captured frame from RenderDoc, and I was mainly able to find bits and pieces of information about different render resources, not a lot of stats about the actual process.
I guess I need to dive into the manual a bit. I was mostly just blindly clicking on buttons and menuItems, looking for any words I recognised (which weren't a lot)

I'm not even sure RD is the tool for the job. It seems most focus on... well, rendering.
Since it's a compute shader I'm investigating, it's not really a rendering step. not directly, anyway

No, actually it does display debug information for compute shaders... I guess I'll see if I can make any sense of it xD

[shy halo]

Is it possible to draw something on a plane using raycast and shaders? I have used setpixed() but it is very slow

[night tusk]

I'm making an indicator that shows where the player is modifying the terrain, this picture shows what it looks like. But as you can see, there's some z-fighting going on, and the ring may sometimes go under the terrain and be hidden. Is there a way I can ensure that the indicator is rendered above the terrain? I'm doing this with shader graph. One idea I had was to just render the indicator a bit higher, like 0.05 units but that feels a bit hacky.

I just tried rendering it a bit higher, and it didn't really work, it just moved the problem a bit higher

[night tusk]

A force field shader could help, but it can't have a thickness. I also thought about a decal projector and that's what I'll probably use

[maiden finch]

Hey guys,
I have a street mesh that uses a stretched dirt road texture

now is my question: Can I replace parts of the texture live with a shadergraph?

Because I have a height depended shader that switches the terrain from basically green(flats) to white (snowy) hills

I would love to replace the outer seam of my Street texture depending on the world y height, so that the seam is not alpha like now but changes from green to white, while keeping the center road lane texture

is there a mapping of some kind or keying that supports that?

Im using HDRP Shaders

[maiden finch]

hey Im not a professional but can't you just tweak the depth test settings in the material menu?
thats how I changed my brush plane to always ontop

[maiden finch]

here a graphic to visualise my question further

[fervent tinsel]

@maiden finch look into alpha cut setting either in stock hdrp shader or make shader graph that does this (in which case you can adjust the alpha cut to get different tiling)

[maiden finch]

thanks I will have a look into

[lilac ocean]

does anyone know where I could find a shader that shows a mesh's wireframe? I have been able to finagle something for primitives but for complex models it doesn't work so well..

[vast vigil]

If I want to use a transparent background PNG for a 2d particle emitter, and use the particle system to change the color of that sprite, what shader should I be choosing for that material? I can't seem to find one that works

[cursive jewel]

I have a doubt, is there any way i can retrieve light probe data without lightmap? I am in a situation where I don't want lightmap once its baked, but need light probe
so that pre-baked light will affect dynamic object. (I am using light baked textures on objects for simulating light)

[heavy stirrup]

any use ComputeWorldSpacePosition from URP core library

and get wrong values ?

float3 ComputeWorldSpacePosition(float2 positionNDC, float deviceDepth, float4x4 invViewProjMatrix)
{
    float4 positionCS  = ComputeClipSpacePosition(positionNDC, deviceDepth);
    float4 hpositionWS = mul(invViewProjMatrix, positionCS);
    return hpositionWS.xyz / hpositionWS.w;
}

im passing in the UV coordatinte for positionNDC

[0,1]

device depth is the camera's depth buffer

[quaint coyote]

Hey guys, here's a shot at multi-pass shaders with different shader models. I was trying to make a nice car shader:

What do you sayy?

[thin scarab]

How do I make particle impact events interact with a shader?

[rare charm]

I'm attempting to make a shader that has this effect on the scene. Right now I just have a plane in front of my camera that this will be applied to. I've tried a few things and nothing is producing results even close to what I would expect, so clearly I have no idea how shadergraph nodes work.

My thought process is that I'd get the world position, get the distance from the camera position, and use this value to lerp between two colors (close/far) clamped to a max distance where everything is the far color. But I'm getting nowhere. What am I doing wrong?

[worthy meadow]

How to access 1 side of the cube via shader graph? I am trying to color 2 sides

[devout quarry]

@rare charm use the depth buffer values to lerp between colors

@worthy meadow dot products of normal vector in world space with a vector such as (0,1,0) for up

[brittle owl]

question, does doing something like this eat up a lot of performance? im just shifting the screen texture by different amounts and then averaging them together to create a blur effect

[meager pelican]

https://forum.unity.com/threads/confused-on-ndc-space.1024414/
See post #2 by bglous, check your values against what he's saying.

[rare charm]

Shaders are the most difficult thing I've ever attempted to learn, because this doesn't seem to work either. Unless this isn't correct? It looks like it might make sense, but just makes everything white (color_fg is white, color_bg is black)

[proud coral]

I'm looking to create an sdf for a dashed line, so far I'm pretty sure I need to generate something like this:

going from 0 to 1, its a line but at equal intervals it flattens out for a set width and then continues on its old path, can someone help me out with this?

[white cypress]

make sure that you're using the transparent render mode, and that you have depth texture enabled in the render pipeline asset

[wraith inlet]

mathematically, you essentially want:

currentInterval = floor(currentX / intervalWidth)
intervalStartHeight = currentInterval * intervalHeight  // This is the height if you're in a flat zone
slopeOffset = (currentX - lastIntervalX) * slope        // slope might be intervalHeight / intervalWidth? 

Then depending on whether the current interval is even or odd, you want to either return intervalStartHeight or intervalStartHeight + slopeOffset

[proud coral]

I think I got the graph wrong in the first pic, this is how it actually is supposed to look like.

where would I get interval height from? wouldn't it be the same as interval width?

[wraith inlet]

if your line is x = y, then yes

so, for step function sections

you essentially need to calculate the height at the left and right sides

and then decide whether you're more than halfway through the current interval

and use either left or right depending

and for the sloped section

do the same as what I described above

[proud coral]

this is currently my issue

[wraith inlet]

floor(currentX / intervalWidth) * intervalWidth

not 100% sure of the floor syntax, I'm new to shaders

but that's the concept

round your position to an int

then multiply by width

for right side, use ceil instead

or add 1 to floor

sorry, floor * intervalWidth gives you the X value to evaluate your function at

so you'd need to multiply it by slope

which I guess is 1 in this case

[proud coral]

floor(currentX / intervalWidth) what does this calculate?

it's confusing, because the entire graph is in the range of 0 to 1

[wraith inlet]

that might be a bit off

I'm trying to get the number of intervals in from the left side

so if you're current value is 0.7 and your intervals are 0.25

you're in the 3rd interval

0-0.25, 0.25-0.5, 0.5-0.75

[proud coral]

does that include the slope segment?

[wraith inlet]

yes

I'm assuming the width of the slope segment is the same as the width of the non-slope segment

so even segments have a slope and odd segments are flat

[proud coral]

nope, they can be different

[wraith inlet]

ah

then how are you deciding where the slope/non-slope sections should be placed?

[proud coral]

they are supposed to be equally spaced from the center of the line

[wraith inlet]

that doesn't uniquely determine their position

[proud coral]

the non slope segments

[wraith inlet]

if it was the slope sections, and we knew that they had endpoints at 0 and 1 then that would be enough information

[proud coral]

how I did it before was with modulo operations

[wraith inlet]

hmmm I guess if you also require that all slope sections are the same width it might determine it enough

so you say you have X non-slope sections of width dX and X + 1 slope sections of width dY, right?

[proud coral]

yes

what's d though?

[wraith inlet]

oh, I was just using the calculus convention dx dy for something like "difference in X"

its just a width variable

[proud coral]

oh ok

[wraith inlet]

so you can look at pairs of segments

with width dX + dY

and say floor(currentX / (dX + dY)) is the number of slope/non-slope combinations from 0

so floor(currentX / (dX + dY)) * (dX + dY) = left side of the last slope section

then if that value is more than dY (slope width) less than currentX

you are in a slope section

[proud coral]

ok it's starting to make sense

[wraith inlet]

combinedIntervalWidth = widthSlope + widthNonSlope
currentCombinedInterval = floor(currentX / (combinedIntervalWidth))
currentIntervalStart = currentCombinedInterval * combinedIntervalWidth

distanceIntoCurrentInterval = currentX - currentIntervalStart
inSlopeSection = distanceIntoCurrentInterval < widthSlope ? 1 : 0

need more? I think that's the key gist of it

[proud coral]

I'll digest what you wrote first and come back to it tomorrow

thanks for the help! I'll be sure to post a screenshot here if it works out

[wraith inlet]

yeah, np

there's a lingering constraint on what widthSlope and widthNonSlope can be so that the total width equals 1, but that would come into play somewhere else not in this calculation

[rare charm]

I do. Idk, maybe I'm approaching this the wrong way. Let's say I have a plane that acts like a filter. When that plane is in front of the camera it should render the depthmap of everything behind it. Kind of like night-vision but depth-vision instead. How do I go about this?

[icy spindle]

has anyone encountered a problem where shader graph stops displaying shader keywords in material gui? also funny thing happened where the keywords no longer have the green dot next to them.

right clicking the nodes and selecting "reset reference" fixed the issue. 😮

[worldly steppe]

Quick question, how do you change the black background to be transparent?

[mellow lynx]

Seems like you would need to connect the A output of "Sample Texture 2D" to the "Alpha" input of "Fragment". If this doesn't seem to work maybe the "Alpha Transparency" isn't set on the texture asset?

[worldly steppe]

Oh yeah I just connected the Alpha & it worked, thanks!

[sterile prawn]

is there documentation somewhere for the various hlsl files Unity provides as helpers for URP HLSLPROGRAM shaders, or is the current state of the art trolling through everything on the github and just looking around ? Something like https://docs.unity3d.com/2021.2/Documentation/Manual/SL-BuiltinIncludes.html and https://docs.unity3d.com/2021.2/Documentation/Manual/SL-BuiltinFunctions.html but for the URP package?

[remote pike]

Hey there guys, so i've recently downloaded a 3D gun model for my vr game. However, I had found out that the model is only being displayed in one eye of the headset. Any solution to fix it?

[regal stag]

The references for boolean keywords require ending in "_ON" to be exposed, resetting them properly automatically did that. If you're setting the keywords from C# too you may want to change them to something more readable though

[regal stag]

Mostly just looking at the github. I've got this which compares some of the built-in functions to URP ones too : https://www.cyanilux.com/tutorials/urp-shader-code/#summary-functions

[lusty badger]

Hi, is there a way to get position of a projector or some local position relative to the projector in HDRP Decal Graph?

[normal rose]

Hello, guys i have a shader found on youtube but it doesn't work properly.. when i increase the radius, texture doesn't change in the game.. in the inspector, the material preview it shows that the material texture changes but in the actual game it doesn't

this is the custom function code

[amber saffron]

You're properly updating the _PlayerPos and _Radius variable from script, right ?

[lament bramble]

Hey guys. I'm trying to set up a shader for my strategy game. I have created two textures, a lookup map that contains uv coordinates of a colormap and the colormap itself, which are sampled.
Works pretty well until now, but i realized some grey areas between the colors (the big grey line is a river and intended).
I'm pretty sure that in these areas the sampler interpolates over all colors in the color map between the specified coordinates. When there are two colors adjacent that are adjacent in the color map too, no grey areas are visible.
Is there a way to stop the shader from interpolating over the texture and just use "discrete points"? I already tried the point filter, but this only decreased the size of the grey areas.

this is the result with the grey areas in between

this is my current, simple shader graph

this is the (zoomed) result when i switch the filter mode to "linear"

[cerulean dune]

Hey, how would we fill a mesh with colors based on different percentages ? I'm trying to avoid to use branches (not really optimized if I remind well) but can't figure which nodes to use

[quaint coyote]

Here’s the car paint shader I am working on! Comments please 😊

[ashen timber]

Can someone help me with this shader issue im having? This is how it is supposed to look:

And this is how it is rendered:

I think it might have to do with the scripted rendering pipeline but i accidently clicked the error away so i have no idea on what to search for on google. normally i dont ask for help since google is enough most of the time.

[wary jackal]

That looks really good. My only suggestion would be to turn the light reflections down. It would appear that on certain colors it reflects way more than other colors.

[ashen timber]

Uuuhm after reinstalling the packages for shader graph and lightweight RP it somehow works now. So never mind. 🙂

[visual moth]

I'm having a very concerning issue. My project looks perfect in the editor, but certain objects are not rendering in the Windows build. The objects that aren't rendering are Legacy Shaders/Transparent/Diffuse and Unlit/Texture. I made sure to include these in the "Always Included Shaders" and saving to asset, but no luck.

[quaint coyote]

Thank you so much! I will note this down. But I am also confused because in games like NFS the cars are super reflective. At times so much that their base colour isn’t recognisable. So how do they manage such things? I want to work on games so please advise 😀

[visual moth]

Here is what the object looks like in the editor, but it isn't rendering in the build. I'm a bit new to Unity, so I don't know if it's an easy fix or not.

My running theory is that these materials are not yet present in the scene until some scripts create them, so Unity doesn't include them when compiling. Hopefully that should be an easy fix.

[visual moth]

Ok, the shader works in the build when I create the material in the editor. It seems that if the material is created in a script, it won't work in the build (even if that shader is present in the scene beforehand). I think a workaround will be to create each material manually in the editor and just assign them in the script. It's a bit tedious, but I think it should work.

[visual moth]

Scratch that, figured it out! Apparently I need to assign the material from the script using gameObject.GetComponent<MeshRenderer>().sharedMaterial = material; instead of gameObject.GetComponent<MeshRenderer>().material = material;

[last token]

so... I have a shader... and I never realized how cursed shaders can be

without shaders

with shaders

[teal breach]

Is your landscape a single mesh? Are your colored regions sharing vertices between adjacent regions?

[teal breach]

I notice there is an outline around the chin - I presume you are intending to add an outline around the character, and you have a shader which extrudes the mesh out according to the normals and colors it darker to create a hull outline? If so, I think that shader is probably also moving the vertices inside the mouth, and creating that weird inside out artefact

[last token]

Yeah

outline

[lament bramble]

Yes, it is a single mesh (an overlay for the landscape). And yes, the vertices are shared. I created a grid of vertices and just set the positions, normals and triangles. I create both textures by code and they seem to be alright

this is how i generate both maps

I think the only issue is the blending. This should be because I "sample Texture2d" which creates the interpolation between vertices, but I couldn't figure an alternative out yet 😄

(in the code the line for setting v is missing, however it doesn't make a difference as i have not enough colors in the color map to reach a v>0 yet)

triangles and vertices on my mesh

[limber mica]

I have a cloud shadow effect linked to noise and time, I want it to only play at certain times, ie not during the night, how would be a good way to link up that logic from a script

I was thinking something around the lines of smooth-steping between the full shadow and a white image, with t being provided by a script but I couldn't get it to work properly

[teal breach]

what I mean is - if you don't want blending across the face, you can just double up the vertices. Instead of sharing vertices between triangles, just give each triangle it's own set. it's (marginally) less efficient, but it doesn't look like this is an extreme vertex count anyway

[polar coral]

is there a shorter way of doing this? i just want to merge RGB + alpha into Color

[proud coral]

@wraith inlet got my dashed line sdf mostly working now with some small modifications to what you suggested

turns out the length isn't always from 0 to 1 though

so I'll have to account for that too

[lament bramble]

i will try this for now, thank you very much 🙂

[lament bramble]

update: got it to work now, needed to bypass sRGB at texture creation ("Texture2D colorMapTexture = new Texture2D(256, 256, TextureFormat.RGBA32, false, false);"), now everything is crisp 🙂

[wary jackal]

Do you want it to be super reflective or not?

[limber mica]

https://www.youtube.com/watch?v=Lm5tRVNQxFs&list=PLgemWy0Blp3rKwG2WrW5__J8CNWID0YbV&index=4 I was trying to recreate this effect, I already have the cel shading and isometric camera effect, but I can't figure out how to get this pixel art effect working properly, can anyone help?

[tacit parcel]

For pixel art effect you could just add a low res render texture with no filtering to the camera

[limber mica]

I already downsized it to 640x300 (16:9 ratio) and resized it back up bit it still looks off, i wanted to try to make the effect with shaders, combining it with my cel shading graph

[devout quarry]

@limber mica this might be of use?

https://youtu.be/NJNE8-yQSJI

[lavish plank]

is anybody here?

can I ask a question about transparent shaders?

I use fade for transparent but the surface is not receiving shadows... why?

[tidal jolt]

anyone have any success with the SDF tool ?

[teal breach]

There is more to it than that if you want convincing pixel art - the style also often employs (i) a prominent silhouette rimlight or dark outline, (ii) cel shading, (iii) dithering (but that is very style dependent), (iv) edge detection based outlines. For the one in @limber mica 's video, you could look at doing an edge detection pass and lightening pixels on a normal/edge

Also, downscaling the resolution can have unintended side effects - it can make the motion quite clunky, as you are limited to moving objects at the render target resolution instead of the screen resolution (you also usually need to clamp the objects position to the render target pixels to remove pixel creep)

There are screen-space methods that avoid this, eg by rendering the object in a dithered pattern and filling out the pattern at the post processing stage to produce pixelated objects

See attempt #3 here: https://medium.com/@elliotbentine/pixelizing-3d-objects-b55ec33328f1

[limber mica]

I already have cel-shading and i'm trying to add a good edge detection outline right now, can you point me towards a tutorial for the rest of this

[teal breach]

This one looks like it covers the concepts in detail: https://roystan.net/articles/outline-shader.html?fbclid=IwAR26tdfinzWb-BeAy2yOXpFRKdG9VrWmvhqc0iBNNL5jBbPBpW3wt606fbw you probably need to consider differences in depth, differences in normals, possibly differences in color

(I also usually add an extra pass to render object IDs to a buffer so I can differentiate between different objects)

[limber mica]

thanks for the help. I'll check it out in a bit :D

[calm jolt]

Does anyone know why i can't connect this notes?

[regal stag]

The Sample Texture 2D nodes only work in the fragment stage. Vertex ports would need to use Sample Texture 2D LOD instead

[calm jolt]

thank you, it works

[devout quarry]

How do you get their IDs?

[fallen oracle]

Does anyone know if you can edit this script (found in the Unity provided C# source code for URP) for adding new types of post processing? I want to make a post processing volume that allows me to change what a color looks like (change the color red to look like green for example)

and i see this same script is setting a materials properties, not sure where that mat is

[teal breach]

I output to a second render target with a custom pass defined for objects I want to outline, using a custom LightMode, and this custom pass puts out per object metadata (used for ID, outline control, some other stuff). https://forum.unity.com/threads/multipass-shaders-in-urp.864187/#post-7027999

having a (low depth) buffer filled with different object IDs is nice for outlining, it's how I do the per-object outlines in my asset

[flint palm]

https://i.imgur.com/GoZBbwY.png

Hi, Im trying to make an outline of my sprite here and Im having troubles. I am currently got it to this point but am unsure of why the bottom right pixels get cut off

I am rougly following this tutorial to make an outline

https://www.youtube.com/watch?v=MqpyXhBIRSw

The thing I am trying to change is to adapt this outline to also include the corners.

having this "pixel" filled with the shader too. Currently I am doing for the offset of the outline:

(0.01, 0.01), (-0.01, -0.01), (-0.01, 0.01), (0.01, -0.01),

any help or pointers in the right direction would be greatly appreciated 😄

update: I am an idiot and forgot to link a node.

works great now, thank you everyone that read through my spiel 🙂

[heavy stirrup]

hey everyone

is there a way to make a custom pass / volume not run in editor window

only game window

[dusky tusk]

Hello, I just recently started using HDRP and I am having issues with emission. I use Autodesk Interactive shader, but for some reason when I put the emission texture and I enable "Use Emission", the emission is not showing. I am unable to get it working... Is there some additional option that I need to enable? I have increased the intensity as well, but still nothing

[gilded iron]

This isn't really a shader question, you'd be better suited for #archived-hdrp . That said: what do you mean by "the emission is not showing"? Can you provide a picture of what you see, vs an example of what you expect to see?

You may be missing a bloom post-processing effect

[teal breach]

I think you can disable post processing through the buttons on the bar at the top of the window

[gilded iron]

Hey, shader noob here looking for some help with optimization. I've written this 4D Voronoi noise function, but it's very slow, and I don't really understand why. Is there a way to make it significantly faster, or am I out of luck due to the nested for loops required?

https://github.com/JimmyCushnie/Noisy-Nodes/blob/master/NoiseShader/HLSL/Voronoi4D.hlsl

[misty vine]

I'm trying to re-purpose the Valve/VR/Silhouette "outlining" shader (from SteamVR Plugin) to highlight one or more objects in my scene simultaneously with different colors. To my surprise, the highlights all combine together when the objects overlap. Even when I use different shaders (duplicated the shader) and materials, the outlines merge together. For this to be happening, there must be some communication between the different shaders/materials/rendering meshes. Any idea how I can prevent this from happening?

[calm jolt]

Does anyone know how to create a Depth Mask Shader in HDRP?

[gilded iron]

Are the materials all using the same buffer?

[gilded iron]

There's a Scene Depth shader graph node, you could try looking at the code it generates

[misty vine]

where is that specified? Is that Render Queue?

I found that I can move one outline in front of the other by changing the Render Queue, but I can't make them both draw in the same area

[misty vine]

Orange means object is selected (trigger pressed) and Green means laser is pointing to it. The two somehow combine into one outline. By changing the queue, I can change which one is in front vs. back.

[surreal coral]

is there a tutorial about creating arrow like this

'

@grand jolt could you help me creating these with a shader?

[grand jolt]

@surreal coral use a flipbook animation

[grand jolt]

the easiest way would be to draw it and then animate it in shadergraph

https://www.youtube.com/watch?v=gEnsciDtbUQ&t=429s

[surreal coral]

ok thx

[teal breach]

do you have a link to the shader?

[final socket]

How do i make the tail that disapear in 2d also dispear in 3d (pic 1 is 2d and pic 2 is 3d) without deleating the tail?Is there any way to make it fully transperant?

[teal breach]

it disappears in 2D because the mesh is flat and being seen edge-on

note that if you had a light and cast a shadow the wings would cast a shadow

easiest way is to probably modify the alpha channel of the albedo texture and use alpha clip to not render the wings

[devout quarry]

Is it common in a shader to store kernels in actual matrix types? Such as for blurring or edge detection

Elliot, you might know this?

[misty vine]

https://github.com/ValveSoftware/steamvr_unity_plugin/blob/master/Assets/SteamVR/InteractionSystem/Core/Shaders/Silhouette.shader

[teal breach]

I don't I'm afraid, I'm not sure what the overheads are for matrix types and fortunately I've been able to avoid them so far (so far a first order gradient has been fine for edge detection if you combine results from both a normals and depth test - but I'll give a caveat that I work mostly in iso and I expect tests are easier than in perspective)

[rare charm]

I want to take a plane, slide it in front of my camera, and have it render the depthmap of everything behind it. Kind of like a night-vision filter but instead a depth-vision filter. I've tried a few things and I can't get it to work right. How can I accomplish this?

[slow musk]

I'm not great at math so i can't figure out why StartFrame variable isn't doing anything. I just want the animation to start at a different frame.

[crisp flame]

Does anyone know (if it's possible) in Shader Graph to project a texture to view, or how to say? Specifically taking a renderTexture from a camera and get it's UV on a material to match up exactly with the view it captures? EDIT: Never mind, I just confused myself trying to use position and view instead of screen space nodes

[teal breach]

You have to put your material in the Transparent render queue - I'm pretty sure Cyan's depth tutorials might actually do this and could be a good starting point (https://www.cyanilux.com/tutorials/depth/) - did you see this resource already? If so, ask more questions on where you got stuck

[teal breach]

do you just see it constantly looping? you are probably changing the start but it doesnt matter because you are still watching the loop?

[slow musk]

Its meant to loop. I just don't know how to make it loop back to the desired starting frame that i set. It always loops back to the first frame.

I'll probably need to relearn math again.

[rare charm]

I think the problem I'm having is that it gets the depth of the object rather than the depth of whatever is behind it.

[white cypress]

Is there a reason you're using a plane instead of making it a camera effect?

[rare charm]

Can camera effects be applied to a portion of the screen?

[brittle owl]

yeah

[rare charm]

I think I gave up on them because doing a blit with urp ended up being a bit of a pain

[devout quarry]

That's why Elliot says to make it transparent, so it won't write to the depth buffer

[rare charm]

But that didn't have any actual effect

[devout quarry]

Check the universal renderer examples GitHub repo, they have a full screen blit

And then in the material that's used during the blit, use a shader that includes 'DeclareDepthTexture.hlsl' and use 'SampleSceneDepth(uv)' to sample the depth texture and return it in the frag function

[rare charm]

What does that look like in shadergraph?

Because the scene depth node doesn't seem to do what I think it does

[devout quarry]

Uh yeah the scene depth node should do that, if you have enabled the depth texture in your render pipeline asset

A simple shadergraph material that is transparent and outputs the scene depth node to color, applied to a quad/plane, should show the depth texture without doing anything extra

[heavy stirrup]

hey guys

does anyone know what this mesh is called

[teal breach]

Bear in mind that scene depth values can look weird if you output them directly to the color channels. You might want to use map before to change them to 0->1 over some distance. Also bear in mind that the scaling is different for perspective versus orthographic (probably easier to test it in orthographic, where the values are linear and somewhat easier to understand)

[teal breach]

you currently have (FPS * Time + Start Frame) % EndFrame - I think what you want is StartFrame + (FPS * time % (EndFrame-StartFrame))

possibly also a round

[agile smelt]

Why is my alpha black?

[shadow locust]

base color is only float(3)

there's a separate alpha channel

notice it's hardcoded to 1 right now

[agile smelt]

yeah but that alpha controls the whole sprite?

[shadow locust]

no, just the current fragment

(aka pixel)

[agile smelt]

ah well then

Thats a new change havent touched it for a while

[shadow locust]

split your Out(4) into rgb and a

[agile smelt]

Before then the vertex and fragment node was combined too

Yeah thanks

Then its gone 😦

Hm. Have to tinker around thanks

[agile smelt]

Like that ?

[shadow locust]

there might be easier ways but yeah

[agile smelt]

Then it just vanishes away

[shadow locust]

🤔

[agile smelt]

Thats weird

[brittle owl]

wdym by that? no alpha?

you might have to change the transparency mode or the alpha clip threshold

[white ore]

is it possible to get unity built-in shader variables?

[quaint coyote]

guys, I am a bit confused about using normals in surface shader and custom vertex function. If I directly get the normals from appdata_full and provide it to the surface shader, heres what I get:

whereas the expectedOutput generally is:

[heavy stirrup]

@quaint coyote can you post the vertex shader code

[quaint coyote]

@heavy stirrup

there you go

[heavy stirrup]

@white ore yes, it should be in an .hlsl file in URP / HDRP package. you can open it up and see all the variables

or check the unity manual

@quaint coyote why is it being multipied by MV matrix not MVP

[quaint coyote]

@heavy stirrup so I wanted to get the vertex posi in view space. but that shouldnt affect the normals right?

[heavy stirrup]

it should because that changes where the fragments are placed on the screen

[quaint coyote]

the vPos is another variable in the struct. I am not modifying the original vertex position.

its just a place holder for view space vertex position

also, I just tried changing it to MVP, but the normals are still the same

😦

[heavy stirrup]

can you post the full code

[quaint coyote]

sure

[white ore]

thanks, but how can i get the exact value?

[heavy stirrup]

depends

you could probably just upload it to a compute buffer in a compute shader, and read it back on the cpu side

if it's float4 values, like the ScreenSize for example

you can draw the values to the screen, dvided by a certain rangeg

and then inspect the color and remap it

@white ore

[white ore]

i see, let me try

thanks a lot

[quaint coyote]

so here's what I was doing wrong:
I was trying to map the Input structs normals to surfaceStructs normals. Why would I do that?

[rancid blade]

Hey guys ... i got a small issue in unity 2021 version where i want to increase the light emission on my light materials ... in older versions i used to show a slider for that now it doesn't how can i do that ? also how can i combine baked lighting and still have light effecting non-static objects ?

[slow musk]

Thank you! It worked!

[agile smelt]

I am using URP with post process and bloom and the scene view (on specific zoom levels) does this

one step zoomed out

few steps in

few in more

It doesnt happen in-game. Is that a bug or something?

[teal breach]

seems strange, if you don't change the zoom but instead change the scale of the sprite in the scene view (so it fills the same area of the viewport) does it happen?

[agile smelt]

Yeah

Zooming out and stretching it achievs the same effect

But only in the scene view

[meager pelican]

There's a function for it. Don't just assign it.
o.worldNormal = UnityObjectToWorldNormal(normal);

in your custom vert()

[quaint coyote]

Thank you so much 😊

[topaz latch]

can someone help me? i want create a shader that combine all different sprite renders "parts" of characters animated via 2d animation similar to what sprite group do but with alpha control without looking like this. can someone give me a direction how to achieve the correct alpha effect ?

[teal breach]

try using an Opaque material (rather than transparent) and using alpha clip, so you can benefit from depth testing. Then, arrange the sprite 'layers' at different distances from the camera

[topaz latch]

the problem is that i have multiples characters in scene..

that why i'm looking into using a custom sprite shader that replicate the similar effect of sprite group combine and them in the result render change de alpha

[teal breach]

in which case you might want to do it through draw order/render queue instead, to eg draw the feet, then the legs, then the shorts, etc

[topaz latch]

hum.. thanks i'll take a look at that 😄

[quaint coyote]

I have a question about fresnel implementation. I have gone through the Schlick implementation. But most of the examples I see use view direction and light direction

When I use that, I don’t get the nice rim light. I have to use the normal for calculating the fresnel

[next mesa]

I'm looking to pay someone a bit for help with affine / projective UV mapping in a unity shader, as detailed in this post:
https://gamedev.stackexchange.com/questions/148082/how-can-i-fix-zig-zagging-uv-mapping-artifacts-on-a-generated-mesh-that-tapers/148102#148102

If anyone is available to help, please message me.

[meager pelican]

They literally gave you the code in that post. Does it not work?

Not trying to be sarcastic. But what's not working?

[next mesa]

I haven't been able to make it work, and my understanding of shaders is limited.

It seems like it shouldn't be too complicated, but I just haven't been able to make it work. I could provide a sample geometry and texture.

[next mesa]

I have a ring around my origin that's extending to the horizon basically, you can see how the UVs are warping the projected texture

Wireframe looks like that

[meager pelican]

Oh. What you might want to try is triplanar mapping (you're only really worried about 1 direction though). So it takes a texture and spreads it across using worldspace. If you're using shader graph, there's even a node for it.
Or just google "triplanar texturing unity". You don't even need UV's! 😉

Just an idea.....

[swift yoke]

I want multiple shaders to all use the same 1 method, so I'm thinking of writing a cg file for it? Never done that before though so I have some questions:
1 - Is this the right thing to do?
2 - If so, is there a way to edit the variables inside the cg file at runtime

[supple tangle]

does anyone know how to create a shader setup for this senario on a textmesh pro object without faking the background?

[wet scroll]

what happened to my preview.......?

[wet scroll]

oh nvm I wasn't in urp

[latent veldt]

How do I make a volumetric cloud shader that surrounds the player?

I don't want it to be limited by a bounding box in the sky

I want the player to be able to walk through soft volumetric clouds

[quaint coyote]

Guys a quick question on fresnel specifically about Schlick implementation. Does half way vector in anyway use normals for calculation ?

If I just use view and light dir, then I don’t ge the actual fresnel effect at all

[tacit parcel]

it's just a squashed image with black tint color

[teal breach]

You can define functions within your extra files that you then pass variables to. You can define constants in the files, and variables within the local scope of the functions

Either use 3d objects and render them to look like sprites or if you prefer a 2d workflow use an alpha clipped sprite. Materials must be opaque to be able to cast shadows

Ahh my bad, missed the unity 2d specification! In which case probably squashed and tinted is the way to go as suggested above

[tacit parcel]

I think you can skew the image by displacing the vertices in local x position based on their local y position.

[grand jolt]

Can anyone please help me to get the under side of this cloak showing?

I am using this "PSX Shader"
https://github.com/dsoft20/psx_retroshader

This is how it should look

[tacit parcel]

You could add cull off but I'd suggest you edit the mesh it self and add normal-flipped cape

[grand jolt]

Does this mean duplicate the cape and invert it?

[grand jolt]

I added cull off to the shader and now this happens

Another question I have about the psx shader I'm using is why I can't add the transparent map (down the bottom) to my model in order to get the tattered cloak effect.

Sorry for these questions guys. I appreciate what you're doing here and while I'm not a shader person myself, once I've ironed out these issues I doubt I'll be asking many more questions

[pine arch]

There's a normal for every face of triangles when you're creating the model. He's saying that you've got the normals inverted for the cape. The forward direction for the cape should be towards the front of the character where's you've got it going away from the character. Back culling would then only show the objects we're assuming to be facing a particular direction. We're not suggesting you to duplicate the cape, we're suggesting you to flip the normals (frontal direction that every triangle has that determines which way is front/back) for the cape.

[grand jolt]

You mean like this?

Wouldn't that just make the cloak invisible from the back instead of the "inside"?

Like this

So it's the same issue it's just that now it's in reverse

[pine arch]

I'm not an artist but I do understand renderers and how they work with culling. When you're in front of the model all triangles facing the camera are rendered whereas triangles facing away are not. When you're being, the opposite would occur; looking at an objects back, the front half are not rendered at all.

Where facing is determined by the normal.

[pine arch]

What did you reverse, the entire model?

Just for clarity, we were only referring to the cape.

[grand jolt]

That's correct. I reversed the normals of the cape. Take note of the "double sided" option I've highlighted to the right in Maya. This is unchecked, so now only the forward facing normals are being rendered in Maya (just like in Unity with the PSX shader)

Now the same image with the "double sided" option checked on

It's now being rendered from the front and the back, and my question is how I can get this same result in the Unity engine

I understand there are double sided shaders on the Unity asset store, but it's important to me that I get this result with the PSX shader specifically

[calm rock]

Hey guys, I'm getting an annoying problem using shadergraph custom function nodes. I have a bunch of parameters in the function, I've specified them in the unity wrapper (you'd think they'd do that automatically) and it's all compiling ok but no input appears.

No 'eyeLidao'

[teal breach]

I think there's an option either on the material or mesh renderer for double sided

[calm rock]

In the end, I recreated the custom function instance and it worked. That seems to be a bug, unless I missed something obvious: some cached copy of the function interface hanging around or something? It's a bit of a black box.

[supple oyster]

A silly but practical option might be to just duplicate all those vertices and flip the normals on one of the copies. Only one set will ever render anyways, so you shouldn't need to worry about any z-fighting issues.

[novel thicket]

hey guys do you knows how i can make sure the mask in an image with a custom shadergraph material keeps working? top image is with a material and bottom one is without. probably im forgetting something simple in the shadergraph but i cant figure it out.

[teal breach]

hey its that guy who does the videos

[light wharf]

how is what I have different from this brackey's tutorial?

[light wharf]

it won't fade properly

[regal stag]

Unless I'm mistaken, the UI masking uses stencil operations which aren't available in SG. You may have to edit the generated code to add it in. The built-in UI shader might give some hints to the property names / stencil pass : https://github.com/TwoTailsGames/Unity-Built-in-Shaders/blob/master/DefaultResourcesExtra/UI/UI-Default.shader

[regal stag]

The Vector4 "Color" port on the master node was converted to a Vector3 "Base Color" (RGB) port and Vector1 "Alpha" port on the master stack. Connecting your final Vector4 up to the Vector1 port will just use the first (red) channel though. You would need to Split it and use the A output.

[light wharf]

ohhh ok I didn't realize it uses the first channel.. I think I got it now, thanks

[twilit geyser]

Hi guys 🙂 I have recently upgraded my shader to URP and now the material previews (not the materials themselves) are showing pink in the asset folder. The materials are working fine so I wonder how I can update the previews? When I create a new material from the shader the material previews are working fine.

Left one is newly created, the others are from the materials prior to updating to URP

[quaint coyote]

Hey all, here's my implementation of ggx with some fresnel. Looking forward to add reflections to this shader. Any pointers/tips?
https://www.linkedin.com/posts/videep_wip-unity-shader-activity-6825469763024756737-uEqB

[quaint coyote]

here's my new car-paint(without flakes):

[prisma coyote]

Iam trying to use the property _StencilComp in a shader.

Like this:

[Enum(Rendering.CompareFunction)] _StencilComp("StencilComp", Int) = 8
...
            Stencil {
                Ref 1
                Comp [_StencilComp]
            }

If i set Comp to always it works perfectly fine, but using the property does not work. Any idea?

[prisma coyote]

Nevermind...found the issue, it was set in the material 😬

[spice gorge]

Do you know any books or other resources for learning shaders?

[runic pendant]

Is there a way to toggle a mulit_compile through a script?

[regal stag]

Use material.EnableKeyword("KEYWORD") (also DisableKeyword) https://docs.unity3d.com/ScriptReference/Material.EnableKeyword.html

[runic pendant]

Thank you, that is just what I needed

[wanton stone]

Anyone have good familiarity with the deferred renderer in URP? I'm trying to clamp my light influence in the fragment shader to a max of half3(1.0, 1.0, 1.0), but due to the way that deferred shading works, it keeps adding each light on top of the previous one. This makes it hard to limit the contribution. With the forward renderer, one can simply calculate the light contribution for the whole fragment, clamp it to white and it will never go over.

[meager zinc]

hey guys I made a material with a custom shader, I am having the problem of not being able to change its color, it remains purple

[wanton stone]

purple, or pink? pink indicates a compiler error with the shader. click on the .shader in the inspector to see the errors.

[meager zinc]

pink yes

show no errors

[wanton stone]

paste a screenshot of the inspector with your shader highlighted.

[meager zinc]

oh wait I re did the shader and got

Shader warning in 'Master': implicit truncation of vector type at line 281 (on d3d11)

[wanton stone]

😉

[meager zinc]

what does this mean?

[wanton stone]

post the line of code.

[meager zinc]

it says warning in "master"

what master?

[wanton stone]

check on line 281 of the shader you wrote. you should start there.

[meager zinc]

my actions were: right click create standard shader

only have 53 lines of code

lel

[wanton stone]

if you double click the error, which file opens up?

[meager zinc]

ah ok, it shows Master(shader) in inspector

click were is says compile and show code?

[wanton stone]

no. click on the error with the red question mark.

[meager zinc]

what red question mark?

is it because I a using a standard shader with urp?

[wanton stone]

that's a warning. it's not an error. and yes, you cannot use standard shaders with URP. You have to use Lit (PBR), SimpleLit (BlinnPhong) and Unlit.

[mystic dagger]

wtf are these and how do i get rid of it

[wanton stone]

@mystic dagger just add your Library folder to your .gitignore. It doesn't need to be committed. it can be rebuilt on each computer locally.

[mystic dagger]

I didn't add the .gitignore until after I had the project set up

[wanton stone]

that's fine. you'll add the Library folder, and it will show all those files as deleted. Stage and commit. And they won't be in your repo anymore.

[mystic dagger]

ok, but I have the .gitignore and it's still happening

does it matter what it's called?

it's preventing me from pushing changes :[

[wanton stone]

It should be labeled just .gitignore and it should be in the root folder of your repo.

[mystic dagger]

will try that, thanks

[abstract garnet]

Hello Shader heads

Got a question

So Im using the Alembic/ Overlay shader to show Vertex colors on an Alembic animation , The problem is that it seems to be an Unlit shader - but I want to use it with DXR in HDRP

is there a way to pull the vertex color but put in to an HDRP Lit shader?

into the albedo channel of course

[meager pelican]

IDK of any restriction in the HDRP that says you cannot use vertex colors with a lit graph...but I don't know HDRP well either. So grain of salt. What you do with the values is what you "code" in the graph.

The vert colors are part of the mesh data.

[grand jolt]

Any reason why Standard Surface shaders can't sample CubemapArrays?

[heavy stirrup]

hey does anyone know how to make a local variable

in shader graph?

i want a modded time variable that is time * .125 for example

and setting it to a variable like the blackboard properties

[grand jolt]

@heavy stirrup Right Click->Create Node->Input->Basic (for input)

I guess you're basically left with the nodes output to track your variables (for output)

[trail scaffold]

Hi. I did some generation of meshes using scripts in the past and am now aware of how inefficient and GCing the code is. I suspect I could do a lot of it using a shader. I am not really sure what kind is appropriate or pros/cons of use of shaders for this sort of application. Has anyone got any suggestions on what to read up on?

[jolly adder]

Hey there,
I have a shader which has one parameter, I want to have 2 parameters instead, one when looking from downside of the plane and one when looking from upside. How can I handle this situation ?

[meager zinc]

hey guys is it possible to know a vertice height in a shader?

I am asking this because I got a shader to make waves and I wanted to know the vertex position in the shader so I could float an object

[tame topaz]

Whatever formula you're using to determine the height of the vertices, you need to also calculate it in code to determine the height.

For example, if you're using a gerstner wave formula, you would run the same formula at that point of space of your object, to determine what the height would be at.

[meager zinc]

ok you are confirming that I was thinking that I needed to calculate it again in code

to bad that I dont understand nothing of this shader graph, I am using a gradient noise, I guess that it will be dificult with that right?

[tame topaz]

You should definitely look up gerstner waves. It's a mathematical approach to waves which means it's pretty easy to port it to C# sampling for height.

Or, if you just need basic bouyancy, this (now free) asset is really good. (URP)
https://assetstore.unity.com/packages/vfx/shaders/stylized-water-for-urp-162025

[meager zinc]

wow thanks

I dont even have to worrie about it

its already done for free

lel

my head was burning with this shit

[gentle dust]

Hello! how can i have mirror UVs on the other side of the sprite on URP shader graph? (i will show how it's working currently with a test image)

this is the front side

this is the back side

but i'd like to get it lit like the front side

to seem like it just flipped

(i'm using a lit shader, not a sprite lit)

[quaint coyote]

How’s this for a mobile game?

[gentle dust]

solved my problem, heres the solution for Shader Graph Mirror Normals on the Backface for a 2D Sprite so people can search (don't mind the test image i used it's a meme):

Based on this post here: https://forum.unity.com/threads/shader-graph-lwrp-cant-use-flipped-normals.646675/

[devout quarry]

I do it like @tame topaz mentioned, gerstner waves in vertex shader and a recreation in c# for buoyancy

[tame topaz]

There you go, the asset creator himself. 😛

[timid minnow]

Has anyone figured out a functioning version of the Nature/Soft Occlusion shader for HDRP? Seems like a huge oversight that this doesn't function, and does not appear to be automatically upgraded:

[midnight spade]

Deleted my question. Of course I can go without an answer for days but then the moment I decide to ask Discord is the moment that I find the solution lmao

[reef grove]

does anybody know how to get the relative location on a sprite in a shader?

like a map from (0,0) to (1,1) but on the individual sprite itself not the whole atlas

I had a solution but then it broke and I can't fix it, something to do with pivot points?

I can show you the code but I think it would be easiest if somebody could tell me how to do it in general this feels like something somebody would use alot

[meager pelican]

Something is already mapping the flipbook to the UV's 0-1 values.
Basically it's % through your range. So (current-start)/(end - start).

If you want it relative to some pivot point, you're using a non-UV coordinate system, perhaps -1 to 1 or -.5 to .5, IDK. So you'll have to translate that.

[reef grove]

ok it has nothing to do with pivot points

I swear this should be really simple but its just not working no matter what I do

Im inputing the position and scale of the sprite to the material

which is in UV space

then I just divide the uv by the scale and the subtract the position

but that just doesn't work??

I can show code if thats helpful

[meager pelican]

Let's just deal with on coordinate. The x. Y will be similar.

[reef grove]

wait now its doing different things each time I run the scene

there must be a different problem

[meager pelican]

So if your sprite is at .2 thru .4 in the atlas.

Your re-mapped value is a range of .2

So if you're at .25, your new 0-1 UV space logical coordinate is:

[reef grove]

no I get the math I think something else is broken because this was working fine before

thanks for the help tho

[meager pelican]

IDK then. You'll have to debug.

[reef grove]

yeah

its feeding in different values each time

do you know what could possibly be the issue?

is there some weird unity optimizer that changes sprite atlases?

this isn't even me restarting the scene im just respawning everything

sometimes _Pos gets set to (0.1,0.2) and sometimes it gets set to (0.5,0) (correctly)

verified with a debug in c#

in fact its the Vector2 p1 not even the shader variable

[reef grove]

I think I fixed it, it has something to do with getting a sprites bounds right when an object spawns

[grand jolt]

It says I don't have a _MainTex property but I do

[reef grove]

the error says "gradient" is the one missing

[lone cave]

anyone on?

I need help please

I've been trying to fix one thing for ages

[brittle owl]

yea just ask the question

[dim sequoia]

Hi everyone!

I wanted to ask if someone knows about how the detail map is used in the hdrp default lit shader, because I want to make a shader in the builtin render pipeline which supports basic properties of the hdrp lit shader, for backporting purposes.

This page of the documentation lays out what channel information mask map and detail contain
https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@7.1/manual/Mask-Map-and-Detail-Map.html

but I'd be interested in "how" the channels are used in the shader. I tried to look for through the shader source code, but it was so convoluted, with 16 or 17 passes and a ton of file includes.

For example:
The mask map blue channel is the masking value for the detail map.

• how are existing shader properties and mask map properties combined based on it?
• how are the scale parameters uses (_DetailAlbedoScale etc.), do they scale the sampled detail map value or are they used to scale the uv before sampling the detail mask?
• the detail mask contains green and red color channel information for a detail normal, but how do I get the blue value? At the moment I assume that the all normal values are normalized, so I calculate the blue channel value from the red and green channel and an assumed final normal vector magnitude of 1.
• The red channel of the detail mask stores the albedo greyscale, but how is that information combined with the base albedo map to arrive at the final albedo color?

I also made a forum post at the end of a related thread that describes what I wanna do in more detail, with current shader code.

https://forum.unity.com/threads/standard-shader-using-hdrp-maps.541352/

Thanks

[crisp flame]

Hey uh, if I'm not missing something obvious I might be in dire need of a matrix math shader mega wizard, because this seems baffling to me. - Experimenting with water reflection tactics; I'm doing some world position vertex transformation shenanigans to flip sprites upside down along an origin at their feet, problem was they couldn't face camera so I trial-and-error'd myself a 4x4 matrix on top to bend it back over a bit. At first it seemed to work perfectly but at some strange camera angles the meshes simply go mental, and what's stranger is that proximity of other meshes nearby affects whether or not this happens? I do not understand math or matrixes at all, but I got so close with results so bizarre I have to ask for an explanation or advice or anything. Here is a video as well https://www.youtube.com/watch?v=OfrFmkqrspw Most of the focus is on the window to the right

[meager zinc]

if using URP I cannot create standard surface shaders?

[grand jolt]

can anyone recommend a realistic water shader with flowing water for a river that works with an orthgraphic cam in URP 2020 on android? Or does anyone know how to make the Orthographic Cam use Logarithmic depth instead of Linear?

[meager zinc]

is there a way to make the shader not visible were an object is in touch with it?

[meager zinc]

I am trying to make water shader not get inside my boat

[meager zinc]

is is possible to make some sort of boolean cut? like not render the shader or make it transparent inside the area which an object is touching it?

[grizzled bolt]

No, only shaders under the URP category

[dim sequoia]

@meager zinc , you could work with or look into the stencil buffer.
Something like: boat has to render before the water, the boat will set for example a certain bit in the stencil buffer.
the water takes a stencil reference value and make certain comparisons with it, and will not be drawn when the reference value has a certain bit set for example
https://www.youtube.com/watch?v=AATjjduNUAU
https://www.youtube.com/watch?v=-NB2TR8IjE8

[meager zinc]

@dim sequoia but this is not compatible with urp right?

[dim sequoia]

the way it is described in this video, it's for shaderlab (built in), but the concept stays the same
urp seems to have a stencil shader feature too
https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@8.3/manual/urp-renderer-feature.html

but I didn't really use urp so far so I can't tell you how it works

[cosmic glacier]

hey all, is there some shader magic I can use to force an object to render over another (but not over anything infront of it) - I have a clipping issue with a quad parented to a pivot and it rotates to face the camera but due to this sometimes it clips in to walls technically behind it

[tropic smelt]

How do I like move multiple connections from one output to another at once?

Also, another question: I have a channel packed heightmap (its in the B channel).

How would I extract it to use it with the parallax node(s)?

Lastly how do you create material instances?

[umbral spear]

I have a shader that pulsates a texture emissiveness for use as a lantern suface.
But now all lanterns in the world pulsate at the exact same time. I would like to offset the pulsing based on the objects position in the world but i dont know how to do this.

I tried adding an offset to the sinus time with the world position but this does nothing

[devout quarry]

You can't connect 2 outputs, is that what you're trying to do?

[tropic smelt]

Maybe I cant, but Idk how to grab multiple connections at all atm 😄 Whats the shortcut?

Im also curious, how would I obtain a 2-float UV map?

[tropic smelt]

Like this or?

[devout quarry]

Yeah looks good, or instead of the combine just a vector 2 node I think, but also if you put a vector4 output into a vector2 input it will use the XY components anyways I think so you can plug the uv output directly into the input

[tropic smelt]

(also, is there a math node with factor? Im thinking like a combination of say multiply, divide, add, power (Etc) and a lerp node) But maybe that isnt a thing?

Im thinking of Blenders MixRGB if anyone is familiar

[devout quarry]

There is a blend node? Not sure tbh

Cyan knows ;)

[regal stag]

Drag a selection box over them first and you can move multiple outputs to a different port

And yeah, that sounds like the Blend node

[regal stag]

Use the Position output from the Object node. Take the X and Z (or add the Y somewhere) and use it as a seed for the Random Range.
To change the phase of the wave you'll also need to use the Time output and handle the Sine yourself, with the offset (random value) added.

[regal stag]

You might need to change it to the green channel, as I think that's what the parallax mapping uses.

[umbral spear]

I dont understand the phase of the wave part and my own sine. im pretty unexperienced with the shader graph.

is this on the right track?

I think i did it!

it works

[grand jolt]

Why do I get this strange blue shading:

This is the shader

[grand jolt]

Also flickers when i move the camera

[sand falcon]

Hey guys i made my own ocean shader that has a foam feature created with the depth buffer

but i noticed something when i was messing around, it appears that if theres an object in front of the ocean theres this white outline thats pretty annoying

Im thinking its something to do with the depth buffer

but i dont have an idea on how to fix it

[white cypress]

try turning on antialiasing

[sand falcon]

I made it in shadergraph btw heres the snippet

output goes into basecolor node output

[quaint coyote]

How’s the car paint 🎨?

[mild wigeon]

Has anyone managed to get a Toonshader going with URP?

[devout quarry]

@mild wigeon https://alexanderameye.github.io/notes/shaders-done-quick/

[swift yoke]

Anyone here know how to get data back from a compute shader to the CPU asynchronously, the docs are really bad for it

[brittle owl]

very good!

[noble tree]

is there a way to get depth masks to work with URP? im trying the

        ColorMask 0
        ZWrite On
``` method, but it seems like it's not getting cleared every frame

currently using URP 12 on Unity 2021.2.0b4

[manic flax]

does anyone know why Scene Color always gives me a solid gray

the graph's like this

[noble tree]

found a workaround by clipping based on world position in the shader

[manic flax]

actually, nevermind

since it's just a simple light map, i replaced the material with unlit

instead of sprite unlit

changed surface mode to transparent, and now it works

[stray osprey]

Can opaque shader graph with alpha from texture even cast shadow somehow?

I can make standard URP simple lit shader cast shadows, but have no idea why it doesn't work on custom shader

Oh nevermind it's just a bug with a simple solution

[thick fulcrum]

if your wanting to do it with custom lighting you need to enable some keywords
I'd advise checking out Cyan's blog or this git which has good examples
https://github.com/Cyanilux/URP_ShaderGraphCustomLighting

[stray osprey]

Welp, I'm already using them :)

[regal stag]

Shadow casting is usually handled automatically by shader graph, even when unlit (unless it's been changed in v12)

[primal wigeon]

I would like to make a specific shader queue close objects first rather than far ones.

[proud vessel]

not a shader question per se...
but does anyone know how unity draws the skybox before the cams (e.g. so clearflags & dontclear lets you see bits of sky)?

I've tried Graphics.DrawMesh(), setting up a command buffer, using onPreCull, OnPreRender, etc, but it either doesn't draw, draws on top of everything, or throws an error in some cases due to the camera having already culled

[slow bear]

AFAIK, the rendering order is Opaque (front-to-back) > Skybox > Transparent (painter's algo), Unity draws the skybox where the depth has not been set during the Opaque queue

What are you trying to achieve in layman's terms?

[proud vessel]

cheers
essentially just showing a draw in roughly where unity would do the CameraEvent.AfterSkybox event

e.g. a single call skybox

[slow bear]

(In the meanwhile, here's my question for the channel) Screen-Space Sobel filters through Renderer Features: is a multi-pass approach more performing compared to a single pass convolution?

[slow bear]

the skybox should be already a single call, unless you mean "I want to draw a single inverted cube/sphere mesh which should show my custom skybox"

[proud vessel]

yeah, the later
so the problem is that unity's own skyboxes are 6 draw calls
you can add a great big inverted box over your scene, but then when you think about it, pythagora's theorem, when you're looking at the corners, that's how long your far clip should be.
then you look at a flat part in the middle, and suddenly you're drawing (sqrt(2) - 1) * farClipDistance extra
so I tried doing a no z clip shader, metal doesn't seem to like it. cannot get metal to play nice on the iDevices (android's breezy, no issues)
so then I thought, try to inject a draw around the same time unity would draw the skybox anyway
just throw together a matrix, give it the mesh and material... done..

but I can't seem to get it to draw a damn thing 😄

( I know the matrix works, because it works with e.g. Graphics.Draw*)

[slow bear]

Mhhhh

Have you tried injecting it at the end of the Opaque queue?

Honestly, I thought skyboxes were rendered in a flat plane with the help of some hidden magic fuckery going on around the depth map

[proud vessel]

I'll give that a shot, thanks
lol, me too though

[slow bear]

btw, are you still sure that the built-in skybox takes 6 drawcalls? I thought that would be true for 6-face textured ones, but I can't find any reference except for a 2008 forum post

if it was really rendering as a cube, I would see the corners of the skybox mesh in wireframe mode

[proud vessel]

99% lemme check nothing has changed

[echo badger]

Is there a way to enable/disable part of a shader if an SRP is being used? I have a shader where I just need a single line to change if a SRP is in use.

[proud vessel]

aah, I guess the short answer is .. it depends which shader you're using
I'm guessing the mobile/skybox (6 call) style shader desn't show vert edges because it's just a draw that's fired off without ever having been a mesh

[bleak stone]

I swear there is was a built-in shader variable or method for getting the position of the "center eye" for VR, in URP. Am I just remembering totally wrong here?

Which I'd expect to do some version of (unity_StereoWorldSpaceCameraPos[0] + unity_StereoWorldSpaceCameraPos[1]) * 0.5

[proud vessel]

for the sake of anyone in the future hunting for keywords, much simpler (and so more accessible) solution than command buffers/shader variants:

• add a Camera.onPreCull callback
  in the callback:
• store the cam's old far clip value
• set it nice & far to give the impression of no z
• graphics .draw( your skybox )
• put the far clip value back to normal

[sonic ridge]

Hey all I'm trying to render points based on position and color from textures. This is the shader I've created https://pastebin.com/dtuyqDW2 . The position texture is created in a compute shader in update and I'm calling an instance of the above linked shader in OnRenderObject. This seems to render just one point in origin :/

I've also added the OnRenderObject block at the bottom

[balmy lark]

Hi there! I'm trying to merge these two shaders:
URP Unlit Color Shader: https://hastebin.com/ewewagacuv.m
Basic Outline Shader: https://hastebin.com/izahoxumij.properties
My best attempt at merging them: https://hastebin.com/yolujoqive.m

I tried doing multiple Subshaders and multiple passes but something still isn't working. The outline part doesn't appear at all (see screenshot)

Does anyone have any recommendations? There might be a problem with the outline shader having stuff outside of the Pass.

[balmy lark]

Ooops, for anyone in the future, the URP does not support multiple shader passes!
Therefore, just create two materials - one using Shader A and one using Shader B and apply them both to the mesh renderer. It gives you a warning but no problems really come up.

[nimble wing]

Within the last two days I started using Shader Graph and made good progress. However I have a specific problem I couldn't fix myself:

How can I apply an warp effect on my current output (picture 1) to look like (picture 2)? You can see my current implementation in picture 3.

[slow bear]

Is this warped as you expect?

or maybe this?

here's the graph just in case; distorsion can be achieved easily by adding a noise texture to UV coords, and you can control the amount of distorsion by multiplying the noise texture for a distorsion factor

[nimble wing]

Cool thank you. That’s what I was looking for. 😊 But how can I transform my output to a texture?

[slow bear]

you mean like, save the result of a shader graph as a texture?

[nimble wing]

Not exactly. I somehow need to apply the UV map to my output Out(1). I am unsure how to do that.

[slow bear]

I'm not following, what's your Out(1) ?

[misty flame]

.shader files are hlsl right?

[gray harness]

yes

[thick gull]

I'm actually kinda curious how this would be done.

if it's even possible

[brittle owl]

there is a custom node on github somewhere that can bake a shader to a texture but i haven’t seen anything for a real-time approach

[thick gull]

oh that's cool. nah I wasn't even looking for a real-time approach. Just curious if you could bake a shader result to a texture from shader graph

[slow bear]

I guess the easy peasy way would be:

• Grab a ortho camera
• Grab a quad
• Set the size of the ortho camera to be exactly the same as the quad
• Assuming an unlit shader output, just take a snapshot from that camera

you might even stuff all together in a editor tool window and run a script that generates the required stuff for the sole duration of the process (like create the camera, create the quad, take a snapshot, destroy both)

I can do it this afternoon, GMT+1

Tbh though, for an in-graph solution I'd prefer to have the possibility to right-click any preview pane in the shader graph and save the result to a path rather than having a specific node that exports the result; from a logical standpoint, a node is supposed to be something that gets stuffed into the shader code without any side-effecting

an export node would jump out of the shader editor boundary and affect the rest of the editor

[grand jolt]

can i use the scene color node (vfx shader) to create an outline to the particles derived from a camera depth buffer of a vfx?

i could use a rrendertexture to paint the outline on top of the r.texture, but i want to paint the particles directly

[primal wigeon]

How do I clear the stencil buffer?

[sharp moth]

Have a problem involving URP and 2D lighting. I currently have a platformer utilizing the experimental 2D lights. Understandably the default behavior of the lights is that they stack intensity on overlap when using a multiply blend style. My goal behavior is to have a "Max" light value that when lights are added together it will clamped to (Alpha blend on overlap doesn't achieve my goal). From what I've seen shaders are the best path forward, however I'm not very good with shader code/shader graph, and I haven't found a good source online despite many hours of looking. If anyone could get me heading in the right direction that would be great, thank you!

EDIT: If this can be solved without shaders or this question isn't best suited for the shader channel I apologize and please let me know!

[ornate sky]

I have a geometry shader set up using refraction but it messes with the eyes on Quest 1 (different renders on each eye). However, it runs fine on Quest 2. I'm having a difficult time finding what difference between the two devices could be causing this. Anyone who might have an idea or can point me in the right direction?

I read that there was some bug with refraction using the default render pipeline on Quest 1. Which could be the case. But the information wasn't really conclusive..

[crisp flame]

Is there a way to change what origin the Rotation Node rotates around?

[fair crest]

So I have this 2d game using URP, and when I pass my sample texture through some color replacing nodes my texture then comes out all smushed and wrong

[meager zinc]

guys can some one try to help me out figuring this problem that I am having with my camera?

the outlines are kinda pixelizated

[heady hamlet]

probably cus you are at 1.3x scale in game view

[grand jolt]

I dont know how related to shaders this is

but why does it do that?

when I start the scene it looks normal but when I restart the scene with the button the lighting goes weird

[sweet pine]

That's an old issue that only happens in the editor. Build should be fine. But if you want to fix it, try this:
https://stackoverflow.com/questions/42447869/objects-in-scene-dark-after-calling-loadscene-loadlevel

[grand jolt]

@sweet pine thanks for the answer! 😄 I alerady kind of fixed it? not really.. but what I did was make a random scene which all it did was load the main scene and from there I made the materials be emmisive and now it works 😄

[grand jolt]

Is there any way to track down what symbol is referred too by a build warning such as: implicit truncation of vector type at line 429 (on d3d11)

[meager pelican]

Stencil (and I suppose most other buffers, like the depth buffer) are cleared at the start of a frame when the camera begins to render to the texture assuming the camera is set to clear them. Unity also has camera setting to clear after lighting for example.

Now, that doesn't stop you from:

1. writing your own pass to set a value into the stencil buffer. You could set the write mask for whatever bits you wish to use (be careful in deferred) and then draw a full screen quad and pass all, writing a 0.
2. allocating your own render texture that has an associated stencil buffer (zeroed by default when created).

However, mobile as I understand it, really never has a full stencil buffer on tiled GPU's anyway. So you may need to think about how to do whatever it is that you need to do. Maybe have a pass to set the initial values if you think they've been messed with by lighting or something. Somehow with tile-based rendering it still works out because all the operations are still applied in the same order. AFAIK.

Shader black magic I guess.

[meager pelican]

Just post your line 429.

Normally it happens when you assign, say, a vector 4 result to a vector3 variable.

[grand jolt]

I’m not sure how to get that line from a shadergraph

Like… I have custom functions that are the issue I’m sure, but it’s not the same line number as the error number in the compiled shader

[runic pendant]

Is there a way to write only on the stencil buffer? I'm want to make a masking effect

[still lynx]

Is there a way to set a Texture2DArray property on a material?

[astral isle]

Anyone know why my shader would be showing magenta for shaders made in shadergraph?

Following this tutorial as closely as I can

https://www.youtube.com/watch?v=ykwvCCqdcCs

[drifting gyro]

Is your project configured for URP?

[astral isle]

It is

I restarted Unity, seems to be corrected now

[drifting gyro]

cool

[astral isle]

I don't have any post processing though.

Bloom's not working

[ocean geyser]

shader graph question: how can I transform a world position (input) to a local object position?
I tried the transform node with Absolute World -> Object spaces, but it doesn't seem to be right.

[fresh herald]

hello guys 😦

does anyone know how to create like anime shader ?? (stylized )

iam trying to make a genshin impact shader but

its really difficult to create it 😭

any resources will be appreciated

[drifting gyro]

https://www.youtube.com/watch?v=Frx8FNkt9HU&ab_channel=BinaryLunar

Something like this?

[fresh herald]

eeeeh!

[fresh herald]

yeeess!

O.O

[drifting gyro]

and if you wanna read up on it

https://roystan.net/articles/toon-shader.html

Here

[fresh herald]

OMG

[fresh herald]

YOU ARE AMAZING

i have BEEN STRUGGLED FOR MONTHES

I DONT KNOW HOW I THANK YOU

HUH MAI GUDH

[drifting gyro]

It was just one simple google search away but okay, you're welcome

[fresh herald]

😮

😭 i guesss iam really stupid 😦

😭

[meager pelican]

Yes, you can do it a few ways. There's a colormask property that you can mask off all color-buffer writes. Or there's another way. See article here:
https://www.ronja-tutorials.com/post/022-stencil-buffers/
He uses built-in pipeline, and you didn't specify, so IDK if this will help you or not. But he wrote

ZWrite Off```
I'd check the colormask functionality though. 
https://docs.unity3d.com/Manual/SL-ColorMask.html
They even say  **"Another common use case is to disable color writes completely so that you can populate one buffer with data without writing to others; for example, you might want to populate the stencil buffer without writing to the render target."** Although the documentation is confusing...I think the ```ColorMask 0``` DISables color writes, IIRC, not enables them all as the docs currently read.

[meager pelican]

When you use the position node, select object-space position. It will do that for you. It actually comes in as local space and gets transformed to world space (eventually). So it will just "keep" the local position if you use it in the graph. If I understand your question. There should be no need to go back to the start again.

But if you're passing it in, like from C#

[ocean geyser]

I don't use the position node.

[meager pelican]

You can do an inverse multiply. There's a matrix for world-to-object transformation, but you might have to pass that in too.

[ocean geyser]

to clarify: by input I meant parameter, not like an input node.

[meager pelican]

Like I was saying, you'll have to pass in the world-to-object matrix.

[ocean geyser]

why would I need to do inverse multiply? I'm passing a world position from outside, transform from world -> object is what I want, and it's on the dropdown?
or am I confusing something here?

[meager pelican]

It's the reverse of the usual operation.

You can't get object position for an arbitrary worldspace point, because there's an infinite set of possibilities, UNLESS you have the world-to-object matrix.

[ocean geyser]

isn't that the responsibility of the transform node?

that is what I was expecting it to do; get the world position, and transform it to object position by using the world-to-object matrix. (without me passing it manually)

[meager pelican]

IDK what you're doing. If the world-space point is for a known object with a transform, then it will know how to go back to worldspace like you just said. But if it is just some arbitrary WS point, it won't know what object.

Assuming it is the object it is processing.

If it is some other object, it won't have the matrix.

[ocean geyser]

what? what are you talking about?

world space is absolute, there's no issue with that - the space doesn't matter.

for an object O, if I want to transform a position from world to it's relative space (object space) - it would have that data.

[meager pelican]

Object space isn't absolute!

[ocean geyser]

that is, "world-space point is for a known object" - that doesn't make sense. world-space is for the world, not for an object.

I know, world space is!

[meager pelican]

Communication is hard.
WS is absolute. OS isn't.
But if you know the Object, you can use the world-to-object matrix.

[ocean geyser]

exactly, I agree on that.

[meager pelican]

Which is where we started.

[ocean geyser]

but the shader graph already as that matrix; it has to.

[meager pelican]

Then use it.

[ocean geyser]

I don't have it, it does.

I thought that is what the Transform node can be used for.

it knows the object (self). I'm giving it the world position.
Hence it knows to use the world-to-object matrix (which it must have).
What else does it need?

[meager pelican]

What is the question? That is what it is for.
There's a "from" and an "to".
Go from WS to OS.

Does that not work?

[ocean geyser]

nope, it doesn't.

[meager pelican]

Position is similar. Depends on what you were doing, I assumed a vert.

[ocean geyser]

what? no idea what you just said.

[meager pelican]

Maybe it is a different bug? Can you post a graph?

[ocean geyser]

Kinda complex since I have lots of tests in it, but this is the important part, that's connected to alpha. Notes:

1. I use distance to (0,0) so I can visualize it on the scene, and see it works.
2. I used the division to try and find the position where it's currently at.

[meager pelican]

Did you try world rather than absolute-world?

[ocean geyser]

p.s. I also tried world vs absolute world, didn't seem to change anything

xd

[meager pelican]

lol

See the sample code for the function here:
the world one is using the world-to-object matrix that you want.

https://docs.unity3d.com/Packages/com.unity.shadergraph@7.1/manual/Transform-Node.html

That's an older link but ...

[ocean geyser]

seems like the absoluteworld-to-object does the exact same thing btw

@meager pelican btw, I should note I found a solution eventually, in the meantime xd
I'm still interested to know why this doesn't work though.

The solution, if you're interested, was to do the opposite.
Instead of transforming my world position to object, I used world space for everything, and for object position I used the Position node

[meager pelican]

You're right it does do the same.

We're going in circles.

[ocean geyser]

just seems like the Transform node doesn't do what it should 🤷‍♂️

[meager pelican]

You can do that, but you then don't need to do those transforms at all since you're sending in worldspace already. BUT...you have to have a way to go to clip-space to output from the vert().

[ocean geyser]

you have to have a way to go to clip-space to output from the vert().
Don't know what it means, but it's untrue anyway xd unless by "you have to" you mean "unity will provide for you" xd

[meager pelican]

It may generate it yeah. The vert() stage outputs clip-space. It HAS TO it's part of the hardware. Then the rasterization happens along with a perspective divide.

[ocean geyser]

@meager pelican I do have another question that I can't seem to work for quite some time though, if you're familiar with the area:
Any chance you know how to get scene color in a post processing shader in 2d renderer urp?

[meager pelican]

I don't do much 2D, but last I knew scene-color node didn't work in 2D IIRC, so you'll beat your head against the wall for hours trying to figure out why it isn't working! (Been there). But maybe there's updates depending on version. That's all grain-of-salt.
Cyan may have something or know more.

BUT...there's probably a work-around. Since you're doing post-processing, you may be able to "cheat" by doing your own render pass for it. In that case, you're not really doing a "scene color" node, you're just reading the back-buffer. The camera has to have a back buffer. I think that there ARE post-procesing examples for SG/URP, so I'd start there and abandon the scene-color node approach, which is a red-herring?

All, again, grain of salt.

[ocean geyser]

@meager pelican based on your own thoughts/experience - how long would you expect Unity to support it?
I'm asking because I need it for my final version of the game, and it's going to take some time anyway; so might be worth to just wait for it.

[meager pelican]

IDK, and you're kind of saying two different things in your question.

Because scene-color node isn't post-processing.

Scene-color happens between the opaque and the transparent passes.
Post processing is after the transparent pass. So to the engine, they're different steps. Which is why I was telling you to "think post processing, not scene color".

[ocean geyser]

also,

Cyan may have something or know more.
Who is Cyan (multiple users with that name come up when trying to mention)? can I mention him to ask him?

[ocean geyser]

mm I'm not familiar with the opaque / transparent passes, although it's possible that is what I tried since Unity doesn't really expose those passes in the Editor.
but from what I know about post processing, I was referring to what you were referring I should do; read the back buffer.

That is, it's another pass after the scene has been renderered.

[meager pelican]

The dependencies are on what you're trying to do....
For example, if you want a heat-distortion effect for semi-transparent "smoke and heat"...you'd do that in the transparent pass and maybe blend it in. THEN you want the scene-color node in a transparent pass for the area/object that you're shading. (Which last I knew didn't work well in 2D).

But if you want to basically process the "whole screen" and do a pass over it, that's post processing.

[ocean geyser]

For example, if you want a heat-distortion effect for semi-transparent "smoke and heat"...you'd do that in the transparent pass and maybe blend it in
Why? or rather, isn't it also possible to do that in a post processing effect?