archived-shaders

[dark forge]

but wouldn't that apply to both loops?

that's what's confusing me

[low lichen]

Do you get any error if you have a tex2D instruction inside the if block but outside the for loop?

[dark forge]

Ah okay

So the reason was because the if statement relies on tex2d

changing it to another arbitrary float made the error disappear

the for loop doesn't seem to be the problem

[quaint coyote]

Okay so about unrolling loops… how do you make a blur shader without a for loop?

[mental bone]

I dont think thats possible

[fervent flare]

Anyone know what operations make a shader SRP batcher incompatible??

I get UnityPerMaterial CBuffer inconsistent size inside a SubShader (ShadowCaster)

which of course tells me absolutely nothing

It#s weird because I am working on a copy of an existing shader which IS srp compatible

and fundamentally I have changed nothng

its 'PerMaterial CBuffer' seems to just randomly have become 'incontinent inside a SubShader'

or whatever

[meager pelican]

The GPU is a massively parallel multiprocessor. You "just" process all the pixels on the screen...you DON'T loop through all the pixels...you're not programming a single-threaded CPU.

So in a post-processing shader, you make a big full-screen-quad, and let it go through all the pixels, and blur the results. Deciding on what gets blurred and what doesn't is the trick. But the GPU will allocate ?256? cpu cores and run through all the pixels in parallel, in groups of 256 (just example numbers).

As far as sampling goes, you can use a loop, or you can just use successive statements to sample adjacent pixels. Or sample MIP levels. Or whatever. You can manually unroll a loop, but the compiler will do it for you if you have a constant value for the iterations.

Check out a post-processing blur shader code...like bloom.

[fervent flare]

Okay so allmighty Unity engine will mark a shadergraph as SRP batcher incompatible once operations that read a texture assets texel size are introduced

undoing those operations will not make the shadergraph SRP batcher compatible again

so the whole shader has to be remade lmao

Okay no it's literally just random

[quaint coyote]

Exactly, then why some people just act strange when we use loops in shader saying that’s not the way it should be done in games 🥹

[karmic rock]

Hi everyone ^^.

I've made a 3D counter with its 3D structure and placed an image as a "Picture" material in font of it, using a Quad.
Unfortunately, in game, the image is cut into a "T shape" form without explanation... Here are the pic and some screens of my render + the shader settings + the in game result.
Could this issue be related to shaders ? Thank you very much in advance.

[quaint coyote]

Check the texture settings it taking alpha. If you don’t want alpha then uncheck or change alpha settings

[karmic rock]

Ok , where can I change Alpha settings ?

[echo flare]

click on the image asset and open the inspector

[karmic rock]

Ah, would you mean the Alpha Cutoff settings ?

[quaint coyote]

Yeah don’t keep it to cutout if you want to see the whole image as is. Keep it to opaque

Also if you select that image itself in the project window and then check alpha settings in inspector you can change them too

[karmic rock]

The issue is, if the rendering mode is set to Opaque, not only the texture is still "T cut" but also, transparent fields are filled with black ^^'.

[quaint coyote]

What’s the expected output?

[quaint coyote]

This?

Pls select the image in project window and send the snapshot of the inspector

[karmic rock]

Yup, the expected render would be this image, with the same grey background. But round-cornered.
And currently, this image is not located in my project files, but in another file called "Collections". My project and this collection are in the same directory . That's why I can't screenshot an inspector view of this precise picture ^^'

[amber saffron]

Then how do you load the texture in unity ?

[quaint coyote]

Check this https://docs.unity3d.com/Manual/class-TextureImporter.html

[karmic rock]

If the problem would come from the code , then I've written a function called EntityCounter(MobileEntity entity, bool addNation, bool destroyed), to import the corresponding image with its counter, and fuse it with the background of the right color. I don't import the texture and color its background manually.

public static Texture2D EntityCounter(MobileEntity entity, bool addNation, bool destroyed)
        {
            if (AssetManager.Instance.TryGetCachedTexture(
                    entity.Picture + CounterKey + (destroyed ? "_destroyed" : string.Empty), 
                    out Texture2D texture))
            {
                return texture;
            }
            
            Texture2D counterBackground = GM.DB.sprites["unit_background_token"];
            Texture2D picture = AssetManager.Instance.LoadTexture(
                DataBase.GetData<string>(GM.DB.Paths, GetSpritesPath(entity)), 
                destroyed ? entity.DestroyedPicture : entity.Picture, 
                TextureSource.Data);
            Texture2D blend;

            blend = counterBackground;
            if (addNation)
            {
                Texture2D nationTexture = entity.Nation.blazon_sprite;
                // Texture2D resizedNationTexture = AssetManager.ScaleTexture(nationTexture, 50, 50);
                blend = AssetManager.BlendTextures(nationTexture, blend, Color.white, -10, 160);
            }
            
            try
            {
                blend = AssetManager.BlendTextures(picture, blend, 
                    destroyed ? Color.gray : entity.Nation.color);
            }
            catch (Exception)
            {
                // Debug.Log($"{e.Message} + {entity.Name}");
                return picture;
            }
            
            AssetManager.Instance.CacheTexture(entity.Picture + CounterKey, blend);
            return blend;
        }
    }

[amber saffron]

Ok, it doesn't really help to understand what's happening to the image data.
In play mode, you can display a preview of the texture by ctrl+clicking on the texture on your material, an separately display the RGBA channels. Do they show anything that is obviously wrong ?

[karmic rock]

Could you explain me how to select the texture please ? ^^' Because ctrl+left click on the Picture just displays the inspector and the view of the actual texture, nothing more .

[amber saffron]

CTRL+Click this

[karmic rock]

Ah, thanks ^^.
Yes, there is indeed an obvious issue with weird cuts in the image.

[amber saffron]

Click on the alpha channel (top right bar) ?

[karmic rock]

Unfortunately , I can only drag the alpha bar from left to right ^^'. Is there anymore option I can access with it ?

[amber saffron]

Click this button to display image alpha channel 🙂

[karmic rock]

Oh, right ^^'. Here's the result

[amber saffron]

Finally 🙂
Now, it gets really obvious why you are having this result, the "T shape" is almost fully opaque in the alpha channel

I suspect that something is doing it in your image processing code, but I have no idea what your AssetManagment class is doing.
And this is a bit out of subject for this channel 🙂

[karmic rock]

Effectively, I shall continue solving this issue in the different "Code" channels. Huge thanks for your help ❤️ !

[torpid sapphire]

What is lighter? A 512x512 texture of a text on a quad on a wall, or making a simple 3d mesh of the same Text ?

[amber saffron]

Depends if you're bound by polygons or pixels.
The texture is probably the easiest to edit tough.
Also consider textmesh

[sterile wave]

what kind of of shader is that.? i mean the thing that makes the camera shake so smooth. 12:55 https://www.youtube.com/watch?v=4Y5eRiFOLi4&t=776s

[amber saffron]

Why do you think it's a shader, and not simply a camera movement ?

[sterile wave]

or do they dont clear the camera while the camera is shaking?

[sterile wave]

because a simple camera shake wouldnt look so smooth. maybe its an pp fx

[amber saffron]

I'm looking at the sequence frame by frame now, and I don't see what you're talking about

[sterile wave]

but then the direction of the camera movement must somehow stay the same, so the image sequence looks really smooth(like a joint get pulled back to the target after collision. (not some random xy-movement). i just thought about creating some pp-shaders that underline that effect, like not clearing the camera for some frame, or add a distortion shader on top

[amber saffron]

It really looks like a spring tween translation, nothing needing shaders.

[grizzled bolt]

"Spring" aka "elastic" interpolation of the camera translation or rotation as mentioned
If it looks somehow smoothed out or blurred to you it could be that your monitor isn't keeping up with the motion as the camera is being completely displaced between frames
Hope you won't implement this exact effect because I got motion sickness just from watching the clip 💦

[torpid sapphire]

I am GPU bound, so texture takes more memory but less GPU performance ?
And since TMPro is SDF, it takes GPU performance but less than a standard mesh for the same or better quality?
thank you !

[sterile wave]

hahah

[sterile wave]

thats a really good tipp!!

[amber saffron]

When you spoke of 3D text, it was "solid thick" meshes for each text gliph, right ?
Depending on the density of the mesh (to have nice curves) and the size of the text, the mesh can be lighter memory wise compared to the texture.
A simple mesh unlit without additional texture might be faster on the GPU than a quad with a text texture, as it doesn't need to sample the texture, and doesn't have to evaluate and discard transparent pixels.
TMP might be a good approach as the texture for the text is smaller compared to legacy text, but still need to discard pixels

[lusty oar]

Hello,
I played a game where some strings were refracting the color of the scene. I tried to replicate this with shader graph, but I think the node "Scene Color" doesn't work for 2D URP yet.
Who can help me figure out how to do this with code? I'm a rookie in terms of shaders and I don't know how I can access the scene color via code in a cg shader (if that's how it works at all 😂)
Thanks for your help

[torpid sapphire]

@amber saffron thank you, very enlightening! Yes it was a solid thick meshes for each glyph.

[quaint coyote]

What does _ST stand for in the shaders? Sampler type?

_Main_Tex_ST

[low lichen]

Scale Translate
https://forum.unity.com/threads/how-to-get-the-textures-tiling-and-offset-variables.181849/#post-1243324

[quaint coyote]

Thank you

Well, yes. "ST" here stands for "scale translate", and at some point the material inspector did call them that. Then based upon the number of confused users the inspector part got renamed to "tiling offset" (I think?), but it was too late to change the shader name property without breaking all existing shaders.

Just accept that it's called "ST" and move on, mkay? 🙂

I kept wondering the full form till now 😂

[brazen mica]

I don't understand shaders quite well.

Would a triplanar shader be best used to fix this?

or does unity have a better option to making textures a constant size, rather then the textures squashing and stretching after modifying the object size?

I haven't been able to find any recent tutorials or threads on this topic.

[fossil cloak]

Its squashed because you also squash the UV.
You could use Worldspace to avoid this or do a correct UV for your model

[brazen mica]

Alright, thank you!

[bronze whale]

how do i edit the texture of a quad using a compute shader? i want to display a conways game of life on it

i have the shader written i just dont know how to edit the texture

[umbral panther]

Is there a way to set up a model in Unity so you can receive an extra non-unorm float3 for each vertex (I want to pass in a 2nd vertex position to do some magic)

• I don't think I can use SV_VertexID, as I'm not sure we'll be on GL_ES 3+
• I can't use a GS for the same reason

[dim yoke]

Afaik you can only write to render textures on compute shaders (you can use regular textures to read only)

[umbral panther]

You can render to a render texture with a camera or certain drawing commands without using a CS

In particular, you can render a "full screen quad" with a material to run a custom shader over an entire render texture

You can also technically setup a PS to do RW access to a compute buffer. But I don't think most APIs will let you bind THE SAME texture for read access while also rendering to it, since what you'd read would be potentially ill defined

Though I think IOS in particular does let your read the current texel

oohhh I misread that. if you want to run a CS, just bind the texture as RWTexture2D - https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/sm5-object-rwtexture2d and then show it on a quad or something, you might have to copy it somewhere

or if you have a pair of textures that you want to ping-pong you can do something similar

[bronze whale]

well it worked for me

i just defined a custom material to edit

set that to the material of the quad and it works

[umbral panther]

Huzzah!

[bronze whale]

hmm

now that i sort of know compute shaders i want to try boid simulation

anyone know any good tutorials on how to set up 3d environs?

[umbral panther]

there are boid tutorials in unity, i think

usually they do stuff CPU side though, but if your just using it to position objects it would be fine

just read your StructuredBuffer<T> in the VS using SV_InstanceId

[bronze whale]

VS?

[umbral panther]

Vertex Shader

[bronze whale]

wait if im using compute shaders im not using vertex and fragment shaders right?

[umbral panther]

Are you planning to render the boids in the same compute shader?

[bronze whale]

one compute shader to render the positions of the boids and then figure out how to display them all

is that wrong?

[umbral panther]

yeah I'm saying use the normal pipeline to display the boids given a buffer with their positions (generating the positions in a compute shader makes perfect sense)

just translate your models by the position data from your boid CS simulation, you can read the buffer in the VS as a StructuredBuffer, and you can get the index of the current boid instance if you drawInstanced with SV_InstanceID

[bronze whale]

gotcha

[umbral panther]

just make sure your target plaforms support all the fancy features, quite a few (esp low end phones) dont

[onyx moon]

Hi, I'm a complete beginner to Unity, so I apologise in advance for my ineptitude. How would I apply this shader to a FirstPersonCamera? https://roguenoodle.itch.io/gbcamera-for-unity

[umbral panther]

FirstPersonCamera is just a camera with some controls. put those controls on the camera this provides probably

[fervent flare]

Anyone know how to set a boolan of a shader per script?

Kinda like MyPooPooMaterial.SetBoolean("_peepoo", true)

it's easy enough for floats but intellisense isn't suggesting the equivalent logic for booleans

I mean booleans are an incredibly obscure and uncommon data type, it's understandable Unity forgot to implement that, right

[dim yoke]

Trust me, they didnt "forget" that. Afaik you can set the boolean as an int (0 or 1). Youd have found that if you just googled and didnt come here to blame unity again 😮‍💨 . Anyways bools are bit weird in hlsl anyways. They are implicitly casted to numbers (to 0 or 1) so they can be used pretty much the same ways as floats/ints on many cases

[umbral panther]

pretty much just use SetInteger (or SetFloat), its basically still going to take up the size of an integer even if you just want to pass a bool. You can make it look like a bool in the material inspector with I think it was [Toggle]

[Toggle(ENABLE_EXAMPLE_FEATURE)] _ExampleFeatureEnabled ("Enable example feature", Float) = 0
You can also use this to turn on/off features, or you can not put a feature/multicompile pragma and just user the variable

In your shader, if you put it as an int you just be like

if (x) //if x non-zero
{ /* stuff */ }

I would usually write it like if (x == 1) or if (x!=0) though for my own sanity

[shadow locust]

hlsl has a bool type

SetInteger works with it

[umbral panther]

Good point, now I feel dumb with all the stuff above

[meager pelican]

Have you tried using the UV's?

[umbral panther]

Are those not constrained to UNORM or SNORM? I recall having had weird issues in the past when I tried something like that

Oh wow this must be new since the last time I looked, this seems like exactly what i wanted... Mesh.SetVertexBufferParams

[meager pelican]

This Unity stores UVs in 0-1 space. [0,0] represents the bottom-left corner of the texture, and [1,1] represents the top-right. Values are not clamped; you can use values below 0 and above 1 if needed.
states that you are free to use them as you wish. From here:
https://docs.unity3d.com/ScriptReference/Mesh.SetUVs.html

That's interesting. I've often wanted just a "user defined float 4" attribute on a mesh. Or even just a uint. I mean, from there you could index into your own unique data buffer. But your link is probably the type of thing we see in the inspector for "custom vertex streams".

[umbral panther]

Ah thats really good to know, while the thing I found is certainly helpful, I feel like i'd need to do a bunch of tech tests before throwing it into a mobile app, whereas just setting an extra uv channel feels unlikely to break castastropically

[meager pelican]

Yeah, and UV4 is (shader is Texcoord3 I think) is highly backward compatible if you just need the one.
This was an interesting thread too, BTW:
https://forum.unity.com/threads/important-information-regarding-mesh-uv-channels.370746/
It is dated, and there's some "back and forth" in it, but the information is valuable to help sort all this out. It's interesting to note here for others reading this that unity now supports up to uv8 directly.

[umbral panther]

I have literally run into that exact uv chanel naming problem before, and wasted a depressing amount of time with it

[meager pelican]

Yeah. Any engine with enough "history" will have its quirks. I agree that that docs could use a bit of tweaking. Docs are hard, in reality.

And frankly, writing an engine has got to be some of the worst "middle ground" there is. Stuck between hardware abstraction and APIs on one "side", and an infinite set of user expectations on the other "side".

[umbral panther]

Engine programming is very interesting

[viscid pewter]

People, I'm trying to use a displacement shader, but my mesh breaks at the UV seams. Any solution?

[knotty juniper]

are the eys the same mesh and material?

[viscid pewter]

Yes, merged too

I read online that you can't really fix it, uv seams are vulnerable when using vtx displacement

[knotty juniper]

if you us the UV to determin how to displace your object that is true

[stiff arch]

trying to change a texture offset via property blocks, but have zero success. tried different property names like _BaseColorMap, _BaseMap_ST, _MainTex, _MainTex_ST. works fine when i change the color via _BaseColor. any ideas?

renderer.GetPropertyBlock(mpb);

mpb.SetVector("_MainTex", 
new Vector4(0.2f, 1.0f, 1.0f / totalTilesInStrip * frameCounter, 1.0f));

renderer.SetPropertyBlock(mpb);

EDIT: well i'll be, missed a combination of _BaseColorMap_ST and all works now :]

[south granite]

Hello, everyone. How is it possible to make non-euclidian game in unity? I mean how to convert 2D/3D game scene into hyperbolic space? I thought the best way would be to write an image shader and it would change the look how camera renders in game view. Please, can you give me any advice where to start? Or any learning materials? Thank you.

[somber snow]

What is a "texture interpolator"?
Shader error in 'Custom/NewSurfaceShader': Too many texture interpolators would be used for ForwardBase pass (11 out of max 10) at line 136
And why does this have too many of them?

        #pragma surface surf SimpleLambert vertex:vert
    
        half _ShadowThreshold;
        half _ShadowIntensity;
        half4 _Color;
        sampler2D _NormalTex;
        half _Displacement;
        
        half4 LightingSimpleLambert(SurfaceOutput s, half3 lightDir, half atten) 
        {
            half NdotL = dot(s.Normal, lightDir) * atten;
            half shadowAmount = round(NdotL + _ShadowThreshold);
            shadowAmount = clamp(shadowAmount, _ShadowIntensity, 1);
            half4 c;
            c.rgb = s.Albedo * _LightColor0.rgb * (NdotL * atten);
            c.a = s.Alpha;
            c.rgb = s.Albedo * shadowAmount * _LightColor0.rgb * _Color.rgb;
            c.a = s.Alpha;
            return c;
        }
    
        struct Input 
        {
            float2 uv_MainTex;
            float4 pos          : POSITION;
            float4 grabPos      : TEXCOORD0;
            float4 grabPosDis   : TEXCOORD1;
        };
    
        sampler2D _MainTex;

        void vert(inout appdata_full v, out Input o)
        {
            o.pos = UnityObjectToClipPos(v.vertex);
            o.grabPos = ComputeGrabScreenPos(o.pos - _Displacement);
            //o.grabPosDis = ComputeGrabScreenPos(o.pos + _Displacement);

        }
    
        void surf(Input IN, inout SurfaceOutput o) 
        {
            half4 bgcolor = tex2Dproj(_NormalTex, IN.grabPos);
            //half4 bgcolorD = tex2Dproj(_NormalTex, IN.grabPosDis);
            //half dist = distance(bgcolor.xyz, bgcolorD.xyz);
            //dist = saturate(dist);
            //dist = round(1 - dist);
            o.Albedo = bgcolor;
            //o.Albedo = tex2D(_MainTex, IN.uv_MainTex).rgb * bgcolor;
        }```

[open quarry]

if my compute shader works on dx11 and dx12, is it expected that it should work on vulkan?

is it a bug if it doesnt?

i cant find any resources online about it and this issue is killing me

[neat hamlet]

it's how many things youre passing from the vertex to the fragment shader iirc, you can get more if you go up a shader model using #pragma target 3.0 or 4.0

[brazen mica]

How do I change the sample texture 2d without having to delete it?

I imported a shader I used from another project but the textures didn't carry over in the shader. So I just want to assign the sample texture 2d a different texture.

nvm, I got it.

[dim yoke]

uv seams shouldn't have anything to do with vertex positions. as malz pointed out, it can be a problem if you use uvs for the displacement but it you use local space position instead, there should be no problem in uv seams (well, the sources online probably referred to splitting the vertices which I believe happens on uv seams but it should have no affect if you use local space position to make the displacement)

[meager pelican]

Here's a devlog of someone doing it, and some additional links. It will include explanations/tutorials of hyperbolic space, which you probably already know, but it will get into the development details later.
https://www.youtube.com/watch?v=zQo_S3yNa2w
https://www.youtube.com/watch?v=pXWRYpdYc7Q

[unique oar]

heya, is it possible to use HDR color with an unlit shader? i'm returning an HDR color in frag but it doesn't get brighter when i turn up the intensity

[meager pelican]

lighting is irrelevant to color-space in the context of your question.

Getting HDR to actually work (HDR Output) on your system first, can be tricky. Can't tell anything from your question, but make sure you have HDR working on your computer and monitor first if you want "real" HDR. Otherwise, HDR is just an internal calc that gets mapped back to standard range.

Other possible meanings of your problem/question result in "Make sure your camera is set to render HDR color, and check graphics settings or render pipeline settings", depending on what you're actually talking about. And you'll need post processing. Read the entire page here, particularly that last section.
https://docs.unity3d.com/Manual/HDR.html
Also, see tut here: https://catlikecoding.com/unity/tutorials/custom-srp/hdr/

[grand jolt]

is there a way to create shader that doesnt rotate as the object its clipped to rotates?
For example. a texture on a ball (circle2D) that stays upright despite the ball rotating

ping to LMK 👋 thanks

[unique oar]

all i'm really trying to do is get the brighter objects to have greater bloom. i can't enable HDR on my camera, though. i'm forced to use my graphics settings, which I can't change to use HDR

[dim yoke]

Huh? How are you supposed to use hdr colors if your camera isnt able to use hdr colors? That doesnt make much sense

[grand jolt]

Is there any way to include transparent objects in the depth texture?

[unique oar]

well that's kinda it, i realized the issue is that my camera isn't using HDR colors. so that's what i'm trying to fix now

[dim yoke]

How may I ask?

[unique oar]

that's what i don't know, dude. i rarely work in the standard render pipeline so i don't know how to modify the graphics settings to use HDR colors

[dim yoke]

Oh wait so you dont know how to enable hdr or you dont want to enable it for some odd reason?

[dim yoke]

So why cant you enable hdr on the camera?

[unique oar]

because i am forced to use my graphics settings

which i cant change to use HDR

let me get screenshots hold on

here is the camera inspector window

here are the graphics settings

[dim yoke]

Just disable the Use Defaults option to access those

[meager pelican]

Well, then you're not going to get HDR!!!
What's the question?

Is your REAL QUESTION something like "How do I do bloom without HDR"?

[meager pelican]

@unique oarIf you can't do this ^^, you'll have to make all your other colors a lower value, and then use the highest value for bloomed things. Which will suck. Or you could try multiple layers and/or cameras, and draw the bloomed stuff with another camera and maybe between cameras add some special pass to tone-down the results to make sure it doesn't go into bloom range, but that's hacky.

[grand jolt]

#archived-shaders message

[upbeat topaz]

tried moving a shader to a new version of unity, but now for some reason it is not transparent like in the gif, just becomes pure black instead
it was a move from 2020.3 to 2021.3

it also looks fine in the preview

but in the preview outside of shader graph it beomes ... this

only difference in the graph is that there is now a "sprite mask" node, but I can not find any documentation on it

sorry for such a wall of images and text, but I really have no idea what could be causing it

[regal stag]

The blending is like this because of negative alpha values. Try using a Saturate node before putting it into the Alpha.

[upbeat topaz]

oh, gonna try that

also, I'm honoured to get a response from you, I love reading your posts about shaders Cyan!

now the preview in-editor seems fine, but when applied to an object on the canvas it still is a black hole

only when I set the base image textures alpha to 0 the texture that is hidden behind it becomes visible

scene itself + the preview look like this now

also, the end of the graph itself looks like this

[tall cliff]

does anybody know how can i cast shadow when 2d object is not facing the light?

this is my current shadergraph

[upbeat topaz]

if there is a setting for "two-sided", see if that one is checked

[tall cliff]

is this it?

[upbeat topaz]

ye

select both

[tall cliff]

OH SHOOT

MAN THANK YOUUU

[upbeat topaz]

np, I totally forget about this one myself often lol

[unique oar]

oh gosh, i didn't even see that. thank you!

[unique oar]

chill? i thought it was an issue with my shader but i realized its something i have to change with the graphics settings

anyways, i tested it and it works now, thanks Aleksi!

[meager pelican]

I told ya to check camera and graphics settings....

[unique oar]

@meager pelican i literally did, and that's when i wrote this message. you can see this is when i realized it was an issue with the settings

[meager pelican]

nm, communication is hard. That post read [to me] as if you were not ALLOWED to change the settings (you're forced to use them as default for some team project or something). Not that you didn't know how to change them.

[echo flare]

Have you tried including these built-ins? https://docs.unity3d.com/Manual/SL-BuiltinIncludes.html

It appears unity_CameraProjection is automatically included via UnityShaderVariables.cginc

[flint bloom]

is there a way to set the required shader model target in compute shader?
i tried #pragma target 5.0, but it didn't seem to work and threw compile error
or is there a way to set the shader model of the entire project, i.e. globally?

[grand jolt]

for anyone wondering about the solution to my question earlier. use rotation matrix and pass the angle of the object ... im a dummy btw. 🥲

[somber snow]

Better late than ever, but thank you very much kind person of the internet

[somber snow]

I got a depth texture by adding "sampler2D _CameraDepthTexture" but the furthest the camera is, the closer the values are to zero. How could I get an evenly distributed depth texture regarding of how far the camera is from the object?

[rotund tundra]

i have this outline shader from the Ultimate 10+ Shaders
how can i make the center transparent/invisable

[upbeat topaz]

is this shader made in shader graph, or in shader code?

[rotund tundra]

shader code

can you use shader graph with stock rp?

[upbeat topaz]

with stock nope

[rotund tundra]

would it be makable with shader graph cos id gladly swap if i can get the effect

[prime timber]

I am having an issue with a custom shader crashing unity constantly. I get no error messages however. How do I debug what I did wrong in the shader?

[upbeat topaz]

it should be possible in either

[meager pelican]

There's macros/function nodes for that. Look for linear depth 0 - 1 functionality. IDK what pipeline/tool you're using.

[hybrid copper]

why isnt the metrial working?

[meager pelican]

That can be a hard thing to do.
There are vendor supported/supplied debugging tools for GPUs. Getting them set up and working is a bit of a chore, but you can do it.

Generally, the easiest way is to comment out 1/2 the code (whatever makes sense) and see if it crashes. If it doesn't, then the problem is in whatever you commented out, or the inverse...if it still crashes it is in the non-commented part. Repeat, doing a binary search type of process of elimination.

Generally, it will be either invalid memory access (think array out of bounds) or infinite loops, NANs, etc.

Remember you can check variables by outputting colors, maybe after remapping. Just throw in a bunch of "return <expression>" stuff at various points.

There's always RenderDoc and PIX too. See unity docs on shader debugging.

[meager pelican]

Looks purple to me.
What's not working?

[upbeat topaz]

you are using a lit material, that's why the colour became darker in the shadow

[meager pelican]

You should check runtime support levels in C# side.
https://docs.unity3d.com/ScriptReference/SystemInfo-supportsComputeShaders.html
https://docs.unity3d.com/ScriptReference/ComputeShader.IsSupported.html
There's also a pragma require https://docs.unity3d.com/Manual/SL-ShaderCompileTargets.html that you might want to try.

[hybrid copper]

its suppose to be light purple

in the pic u can also see that the metrial is light purple

yet its dark purple

this is how it should look

[meager pelican]

I don't see the "lighter hat-band" on the screen shot you gave (the mesh I mean, regardless of color).

But, if it were me, I'd use a texture with two or more colors in it, and then in the modeling program map the UVs of each part of the model to the proper colors in the texture. Basically a modeling issue, not a shader issue per se. Unless you want to do something funky with a shader effect or lookup.

[upbeat topaz]

also, you might need to add an ambient light

[prime timber]

Thnak you! I made it in shader graph and am now trying to unplug individual things to see what causes it.

[boreal berry]

Why cant i select the material?

[meager pelican]

As a guess, since you're using the sprite default material, you should make a new sprite material first, assign it, and then see what happens.

[meager pelican]

Yeah, same idea...unplugging = commenting, and outputting something (maybe through a remap node) to the albedo output to debug values. Good luck! 🙂

[boreal berry]

I created a material and this hapenned ;-;

[meager pelican]

IDK, but not really a shader question...
Maybe you'll get more help/experience in a different area, like art assets or whatever?

[boreal berry]

i think im gonna give up on the lights since its my first game, ill learn it other time

can i ask a material related question here? or in the art assets just like you said?

[meager pelican]

Unless you're making a custom shader, you'd probably get more help in the art assets. But it depends on the question! If you want to know how shaders use materials, maybe here????

[boreal berry]

Idk ;-; my... material doesnt really looks white

[meager pelican]

That's lighting. You should find a tutorial on materials, IMO.

[boreal berry]

Ok thank you

[rotund tundra]

bruh. why is transparency soo hard

i just want the black outline, the red sphere should be invisible

[hybrid copper]

ye its not a shader problem, but why is the cube looking like this?

[rotund tundra]

you have inverted normals

you can fix that in blender

[hybrid copper]

In blender its all fine

[rotund tundra]

then mabye your shader is inverting the normals

[hybrid copper]

how do i stop it?

[rotund tundra]

is it just the standard unity shader?

[hybrid copper]

ye

[rotund tundra]

ok then the model has inverted normals

[somber snow]

Built-in. I came across them but I just thought "linear" meant from 0 - 1 xD
I'll definetly give them a try now, thanks

[rotund tundra]

in blender in edit mode with the mesh selected

[hybrid copper]

now it works thanks

[rotund tundra]

ur welcome

[meager pelican]

Don't draw it....(that's the best solution, fastest pixels are the ones you don't draw). But I'd need more info to tell.
Is it a multi-pass shader? What outline method are you using?
Are you in the opaque queue and trying to output a transparency? You'd need to be in the transparent queue for that.

Also see "Color Mask" option in shader docs, that might help you, if you're drawing a stencil but don't want to output color info.

[rotund tundra]

i can disable it in the shader then the entire thing goes black, as i understand the main part is rendering over the outline

without the center its all outline, so i want to render null over the outline effectively canceling it out

[meager pelican]

OK, firstly, what are you trying to do? A force field? Just a big circle as an outline? Do you need the center to fade in and out?

Secondly, are you working in a transparent queue?
IDK if you're allowed to post the shader code of an asset from the store.....but you need to read it and figure out what it's doing in what queue.

[rotund tundra]

its a tower defence game, the outline shows everything in the turrets range

[meager pelican]

what queue is it using?

[rotund tundra]

Transparent

its creative commons 3.0 so i can share and adapt

Shader "Airscrach/Range"
{
    Properties
    {
        _OutlineColor ("Outline Color", Color) = (1,1,1,1)
        _OutlineWidth ("Outline Width", Range(0, 4)) = 0.25
        
        [Enum(UnityEngine.Rendering.CullMode)] _Cull ("Cull", Float) = 2
    }
    SubShader
    {
        Tags { "RenderType"="Geometry" "Queue"="Transparent" }
        LOD 200
        Cull [_Cull]

        Pass{
            ZWrite Off
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            struct appdata {
                float4 vertex : POSITION;
                float4 tangent : TANGENT;
                float3 normal : NORMAL;
                float4 texcoord : TEXCOORD0;
                fixed4 color : COLOR;
            };
            struct v2f{
                float4 pos : SV_POSITION;
                float3 normal : NORMAL;
            };
            fixed4 _OutlineColor;
            half _OutlineWidth;

            v2f vert(appdata input){
                input.vertex += float4(input.normal * _OutlineWidth, 1);
                v2f output;
                output.pos = UnityObjectToClipPos(input.vertex);
                output.normal = mul(unity_ObjectToWorld, input.normal);
                return output;
            }
            fixed4 frag(v2f input) : SV_Target
            { return _OutlineColor; }
            ENDCG
        }

        ZWrite Off
        CGPROGRAM
        // Physically based Standard lighting model, and enable shadows on all light types
        #pragma surface surf Standard fullforwardshadows

        struct Input
        { float2 uv_MainTex; };
        sampler2D _MainTex;

        void surf (Input IN, inout SurfaceOutputStandard o)
        {
            o.Albedo = float3(1,1,1);
            o.Alpha = 0;
        }
        ENDCG
    }
    FallBack "Diffuse"
}

the first CGPROGRAM does the outline, the second one is the red part

[meager pelican]

Add a line at the end
after the o.Albedo line
That says
o.alpha = pixel.a;
Alpha may need to be capitalized.

[rotund tundra]

o doesnt have an alpha value

[meager pelican]

Just a sec...

{
    fixed3 Albedo;      // base (diffuse or specular) color
    fixed3 Normal;      // tangent space normal, if written
    half3 Emission;
    half Metallic;      // 0=non-metal, 1=metal
    half Smoothness;    // 0=rough, 1=smooth
    half Occlusion;     // occlusion (default 1)
    fixed Alpha;        // alpha for transparencies
};```
capitalize the alpha.

That's from here, BTW: https://docs.unity3d.com/Manual/SL-SurfaceShaders.html

[rotund tundra]

wait no i misunderstood

ok did that, but it didnt change anything

[meager pelican]

Grrrrrr.
OK change it to
o.Alpha = 0.25;

[rotund tundra]

no change

[meager pelican]

Still solid?

[rotund tundra]

yup

[meager pelican]

Prove to me that that pass is the one drawing it.
Change
o.Albedo = float3(0,1,0);

just temporarily. Comment out the original line

[rotund tundra]

yup, its green now

[meager pelican]

f---
It's not honoring the transparency, so maybe we're not in the right queue for some reason.
Let me dig around a bit.

You can put those two lines back to normal.

Thanks for trying it.

[rotund tundra]

they dont really matter as when it works they wont be visable

[meager pelican]

We can try to not do that pass at all.

[rotund tundra]

u get this

im thinking it shouldnt be a surface shader cos it really only needs to be unlit cos its transparent

[meager pelican]

That's true, and a good point. But I'm trying to work in your context. Although it would be faster to not bother with lighting calcs.

The thing is, you're right, it's drawing "black" over the whole image. My bad. Black is the outline color in your case.
Then it passes again and draws the real color.
It does not update the depth buffer on the outline pass.

It is extruding the object along the surface normals by an amount specified by the outline width. For the outline pass.

That method won't give you what you're looking for.
The hacky way to fix it is to do a grab pass and on the 2nd pass of this shader re-draw the background over top of the black. But that sucks.

Another hack would be to do additive blending. Black adding a "nothing". But you can't really do a black outline that way...could add in some other color.

But it would highlight the whole area. Like adding in a color of .1,.1,.1 to brighten it all up.

[rotund tundra]

i was basically doing that with my old range shader

[meager pelican]

There are other ways to accomplish this same thing, using different methods of course.

What shaders do you use to draw everything else?

Normal stock ones?

[rotund tundra]

95% yes

[meager pelican]

Wait.
What is outline color set to on the material?

Try changing the alpha of that.

It will darken the result due to blending, but you should get a darkened TRANSPARENT area.

[rotund tundra]

the outline doesnt use transparency so it does nothing

could i maybe chang the culling mode for each pass?

[meager pelican]

The code you posted shows it in the transparent queue and outputting a float4.

[rotund tundra]

yea

[meager pelican]

So this assumption is wrong. I think.

Where did that last pic come from?

[rotund tundra]

i set the cull to front

[meager pelican]

I see. But that will block out the stuff behind.

[rotund tundra]

yea

i got it working unlit

Shader "Airscrach/Range"
{
    Properties
    {
        _TransparentColor("Transparent Color", Color) = (1, 1, 1, 0)
        _OutlineColor ("Outline Color", Color) = (1,1,1,1)
        _OutlineWidth ("Outline Width", Range(0, 4)) = 0.25
        
        [Enum(UnityEngine.Rendering.CullMode)] _Cull ("Cull", Float) = 2
    }
    SubShader
    {
        Tags { "RenderType"="Geometry" "Queue"="Transparent" }
        LOD 200
        Cull [_Cull]

        Pass{
            ZWrite Off
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            struct appdata {
                float4 vertex : POSITION;
                float4 tangent : TANGENT;
                float3 normal : NORMAL;
                float4 texcoord : TEXCOORD0;
                fixed4 color : COLOR;
            };
            struct v2f{
                float4 pos : SV_POSITION;
                float3 normal : NORMAL;
            };
            fixed4 _OutlineColor;
            half _OutlineWidth;

            v2f vert(appdata input){
                input.vertex += float4(input.normal * _OutlineWidth, 1);
                v2f output;
                output.pos = UnityObjectToClipPos(input.vertex);
                output.normal = mul(unity_ObjectToWorld, input.normal);
                return output;
            }
            fixed4 frag(v2f input) : SV_Target
            { return _OutlineColor; }
            ENDCG
        }
        Pass{
            ZWrite Off
            CGPROGRAM
            #pragma vertex vert2
            #pragma fragment frag2
            struct appdata2 {
                float4 vertex : POSITION;
                float4 tangent : TANGENT;
                float3 normal : NORMAL;
                float4 texcoord : TEXCOORD0;
                fixed4 color : COLOR;
            };
            struct v2f{
                float4 pos : SV_POSITION;
                float3 normal : NORMAL;
            };
            //render as transparent
            fixed4 _TransparentColor;
            v2f vert2(appdata2 input){
                v2f output;
                output.pos = UnityObjectToClipPos(input.vertex);
                output.normal = mul(unity_ObjectToWorld, input.normal);
                return output;
            }
            fixed4 frag2(v2f input) : SV_Target
            { return _TransparentColor; }
            ENDCG
        }
        
    }
    FallBack "Diffuse"
}

[meager pelican]

What's ticking me off is that the same thing should work with a lit shader and give you 3d lighting easily, so you'd get a "rounded" lighting effect.

Did you try to change the outline color's alpha? It was still 100% opaque?

[rotund tundra]

yup i cant get alpha to effect anything

[meager pelican]

But you can with vert/frag now? What's it look like now? Just out of curiosity.

[rotund tundra]

bassically the same but unlit

[meager pelican]

nm, I thought you said you got it to work.

frack. Must be something I'm forgetting about surface shaders.

if it were me, I'd look for a "force field" shader that does both sides (front and back) in transparent. But that's not an outline, unless you find one that has that.

[rotund tundra]

thats what i originally looked for

[meager pelican]

@rotund tundra
Anyway, there's other ways.

One way is to draw a stencil with the original (not extruded) object. No output to the color buffer, just setting the stencil.
Then draw the outline extruded, honoring the stencil and not drawing where the stencil is set.

But you won't get a "full circle" on the bottom/terrain, you'll only get the front half.

Unless drawing both sides works (haven't tried that).

Also on your original surface shader, try changing the tags to
Tags {"Queue" = "Transparent" "RenderType"="Transparent" } , not "geometry" which is what I think might be f-ing it all up.

@rotund tundra

[rotund tundra]

nope unfortunately

[meager pelican]

And also try:
#pragma surface surf Standard fullforwardshadows alpha:fade

that's in the 2nd pass

[rotund tundra]

i got this but as you said its additive so it doesnt quite work

[meager pelican]

There we go! Making progress!

transparency

[rotund tundra]

it needed this line

[meager pelican]

Yeah. That's the next thing to look at...what you want to do with blending.

But, your outline will also be transparent, unless we bag all this and do the stencil thing.

that blending equation you posted is "standard transparency". So you should now be able to set colors as you wish. But the problem is that the full-object extruded outline pass will draw the transparent outline color on the whole thing, unless you use a stencil.

[rotund tundra]

what exactly is a stencil?

[meager pelican]

GPU black magic!

lol

[rotund tundra]

ah

[meager pelican]

Basically, it's a stencil buffer, similar to a depth buffer concept.

It's there for each pixel, and there's 8 bits you can screw with.

The gpu has stencil test/set hardware.

So you draw something and set the stencil. You don't even have to write colors or depth.

Then you can draw something else (or the same thing again) and check the stencil values. The gpu is configured to do this IN HARDWARE

Such that it won't even call the pixel shader if it can skip the thing.

So there's setting and testing.

[rotund tundra]

so could we stencil the inside then ignore the stencil when drawing the outline?

[meager pelican]

YES! That's what I was saying above. 🙂

[rotund tundra]

ok cool

[meager pelican]

But you honor the stencil...you draw where there is no stencil from the original object (the "inside"). I know what you mean, you "ignore where it is stenciled".

[rotund tundra]

ok

lookin at the docs, this looks kinda complicated

[meager pelican]

So start by reading here:
https://docs.unity3d.com/Manual/SL-Stencil.html

Oh, ok.

Yes, it looks weird. It's not that bad.

It is this way because you're actually configuring stenciling "hardware" so it can be smart about all this stuff and quickly skip pixels that don't pass.

[rotund tundra]

that makes sense

[meager pelican]

Similar to how it can skip pixels that don't pass an early z-buffer test for depth.

But it's not a z-buffer, it's a stencil buffer.

😉

[rotund tundra]

Pass{
            
            CGPROGRAM
            #pragma vertex vert2
            #pragma fragment frag2
            #include "UnityCG.cginc"
            struct appdata2 {
                float4 vertex : POSITION; float4 tangent : TANGENT; float3 normal : NORMAL; float4 texcoord : TEXCOORD0; fixed4 color : COLOR;
            };
            struct v2f2{
                float4 pos : SV_POSITION; float3 normal : NORMAL;
            };
            //render as transparent
            fixed4 _TransparentColor;
            v2f2 vert2(appdata2 input){
                v2f2 output;
                output.pos = UnityObjectToClipPos(input.vertex);
                output.normal = mul(unity_ObjectToWorld, input.normal);
                return output;
            }
            fixed4 frag2(v2f2 input) : SV_Target
            { return _TransparentColor; }
            Stencil{
                //stencil the inside of the outline
                StencilEnable
                StencilReferenceValue 1
                StencilPass 0x1
                StencilFail 0x0
                StencilZFail 0x0
                StencilWriteMask 0x1
            }

this look kinda right?

i let copilot take the rains cos im a bit outta my depth here

hmm

im looking at the docs and this doesnt seem right

oh

it doesnt recognise stencil

[meager pelican]

I'm going to let you google around rather than fill this chat up.
Stencil would go above, outside of the frag. in the pass part.
See the docs. Like draw the sphere using:

             {
                 Ref 2
                 writeMask 2
                 Comp Always
                 Pass Replace
             }            ```
Maybe with COLORMASK 0 before the stencil command.
https://docs.unity3d.com/Manual/SL-ColorMask.html
you could move your lower-pass to the top (first) pass and do a stencil.
Then in your outline pass you'd do something like:
```            Stencil
             {
                 Ref 2
                 readMask 2
                 Comp Less
             } ```

But I haven't tried that. I'd have to pull up Unity and screw with it. I'll leave that to your google-fu.

[grand jolt]

Hey guys! I'm following a tutorial to create a toon shader (https://www.youtube.com/watch?v=RC91uxRTId8&ab_channel=NedMakesGames) and at 11:05 he tells to add the keywords to the material. I'm using the latest version of unity instead of 2020 and it looks different but also works different. I can't seem to find out how to add the keywords to the material.

In the video there's a field to add the keywords. Version 2021 has a size option at Valid Keywords. When saying the size has to be 3, it defaults back to 0 and adds 3 to Invalid Keywords. How do I add the 3 keywords to the material?

[rotund tundra]

sorry for ping but i just wanted you to know that i got it working,
thank you soo much for your help!

[meager pelican]

Nice!
BTW, if you do a lit surface shader, at the end/last pass or do lighting calcs in a vert/frag to self-shadow, you can use the now-working transparency to "tint" the inside as much as you wish. Lit would be shaded of course, and unlit would be a solid color of course.

But it doesn't look like you really want that. But you COULD do it. 😉 🙂

with cull off it might be a cool 2-sided effect.

[runic lichen]

why does my shader give this error every time it compiles? it doesn't break anything but it's just really annoying to stare at an error while working on other things

[desert orbit]

Pick another name for color property, this one already exists

[runic lichen]

doesnt change a thing

theres not even a single property with the reference or name _Color in the entire shader

i even looked through the compiled code

[desert orbit]

You can see hidden properties if you set inspector in debug mode

[runic lichen]

ok i managed to find the little bugger, thanks for the help

[slim steppe]

Hi, my shader is "switching" between two completely different looking versions

[slim steppe]

What I would expect

And then there's this one

Im using urp and these are the tags```cs
Tags {"Queue"="Transparent" "RenderType"="Transparent"}
Blend SrcAlpha OneMinusSrcAlpha
LOD 100

If you need anything else dont hesitate to ask

Thanks!

[slim steppe]

I did some more testing

[slim steppe]

this only happens sometimes when its infront of a non working skybox

[upbeat topaz]

Hello,
when upgrading to a newer version of unity this shader stopped working with transparency in-game, even though it's fine in preview, any idea what could be the cause of this?

I know I posted about this yesterday, but it just doesn't work in-game in the end

[regal stag]

Does it work when applied to a quad mesh or sprite maybe? (Don't really like using Shader Graph with UI as it's not really supported properly. Would be good to confirm if that's the problem or not)

[upbeat topaz]

will try it now

it's just weird that it did work perfectly fine in the previous version

it seems fine on a quad

huh

[simple violet]

Upgrading unity is always asking for disaster

[upbeat topaz]

then what could be causing it to not be fine on a raw image?

[regal stag]

At a guess it could be that the graph generates more passes (e.g. ShadowCaster/DepthOnly, though not sure if that is generated with the Sprite Unlit graph type, I don't do 2D stuff often). It's possible the UI is trying to draw all passes ontop of eachother, rather than just the main forward one.

[upbeat topaz]

I guess one of the updates messed that up, dang

and there is no way to fix it other than going to either an earlier version or hoping some future one fixed it?

[regal stag]

If it is to do with extra passes, you could generate code from the graph and remove them.

Or just avoid using graph shaders on UI. Replace it with a quad?

[upbeat topaz]

ah, hoped this version would have less hacky solutions to stuff as I saw in release notes a lot of 2d features leaving the experimental phase

will try both of solutions ya said and see which one works best

this seems to be in the generated code

• the tags

nothing seems to be out of the ordinary, unless I'm overlooking something

oh, checking on the issue tracker it seems that this is "by design"??? https://issuetracker.unity3d.com/issues/shader-graph-shaders-from-shader-graph-dont-work-on-ui-with-canvas-render-mode-set-to-overlay

[upbeat topaz]

after finding this thread the thing that fixed it was ... changing the camera mode from overlay to screen space - camera https://forum.unity.com/threads/shader-graph-ui-image-shader-does-not-work.1202461/#post-7683259

also, thank you so much for being patient with me!

[grand jolt]

Hey there! How do I create a simple outline shader in shadergraph? I followed a lot of tutorials but none of them gives me the same result. Right now i'm stuck with this one, what can I be doing wrong?

Are depth textures used only in post processing shaders?

[dim yoke]

You mean depth buffer or depth texture? Depth texture can be used for lot of different things on regular surface shaders too (like water refraction etc.)

[drowsy linden]

Is there a way I can not only pick a random point on a UV/surface, but have it be weighted? I get I could use the channels of colorful noise to get an x and y coordinate, but not how to weight it

[grand jolt]

In what way to you want to weigh it?

[drowsy linden]

Have a higher chance of placing the point in a certain area

Ideally I would be able to input a texture, with black being no chance of the area getting picked and white meaning 100%

[grand jolt]

That's a bit less obvious to do in a single pass but if your weighting can be captured as some function of uv space it's pretty straightforward (e.g. weightedUv = weigh(uv) where weigh can for example take into account the distance between your sample and the center of your noise texture).

What you want (a 2d texture with 0-1 indicating odds of that position being picked in your noise texture) is both hard and slow.

[drowsy linden]

Hmm. What about voronoi pattern. That’s a function, right?

[grand jolt]

Yes, although depending on how you want to use it also computationally expensive. Perhaps if you give some context as to your true need people can weigh in on possible alternatives to it being texture based (for example, there are ways to create random values that don't involve input textures in shaders, or precalc a LUT texture and use that)

For example, you could pregen a 2d texture that on the U axis is random noise and on the V axis is your weighing from 0 to 1 such that the texel value is U x V. That way you can sample a random U with your input weight V and get a weighted value.

[drowsy linden]

Actually. Maybe a different approach is necessary. Perhaps I could have some sort of math operation that could push the coordinates towards being a certain value. Like taking the color noise texture, and then overlaying my probability field over it in a way that would take the RG channels and modify them

[grand jolt]

Ah so the probability field is an input you already have and need?

[drowsy linden]

Yeah that’s the texture

My goal is to spread little textures on the surface of something in a random way, but be able to weight it to appear more often in certain areas

[grand jolt]

Hm, but isn't that as simple as multiplying your probability field with the noise texture? That should translate smoothly to fragments with higher probability being more likely to reach a certain treshold value.

[drowsy linden]

But wouldn’t that push the coordinates more towards the corner

Or 0,0 / 1,1 rather

[grand jolt]

how do I make an outline in shadergraph? I've followed some tutorials but none seems to be working

How so? If for each fragment your "need little texture here value" is a random noise sample times your 0-1 value of the probability texture you provide than it'll just be a new texture with 0-1 values skewed towards your probability field values. Then you determine some threshold value for where you want your little textures.

[drowsy linden]

Hmm. I’ll be home soon, I’ll have to try it. I feel like it can’t be that simple, haha

Wait, what do you mean threshold?

[grand jolt]

If I understand your need correctly I think it is. The only additional choice is static noise texture versus dynamic one (the former would result in the same probability field resulting in exactly the same spots where you want your other texture, a dynamic one would make that noisy).

Well if your inputs are P (probability field value, 0-1) and N (noise value, 0-1) for each fragment/texel than multiplying them gives you a 0-1 value. You probably want to go from that to a on/off type value. E.g. if your calculation results on values below, say, 0.5 then no little texture, and above that you start blending it in.

I only really create shaders in code so whatever the equivalent of some clamp or smoothstep function is in shadergraph.

[lean lotus]

Whats the C# equvilant of

float3 A = mul(Matrix4x4, float4(B, 0));

[grand jolt]

Just Vector3 A = Matrix4x4.MultiplyVector(B); or the Unity.Mathematics equivalent I think or am I misunderstanding your question?

[lean lotus]

oh really?
wait is that different than matrix4x4 * B?

[grand jolt]

It is different but I think you actually want a straight matrix multiplication (which is Matrix4x4 * Vector4)

MultiplyVector does some extra lifting.

[lean lotus]

ok
but theres no efficient way to convert from Vector3 to Vector4 without breaking into components manually

[grand jolt]

it's implicitly converted

so Vector3 A = ... is allowed.

[lean lotus]

No I mean the Vector3 to Vector4

[grand jolt]

Yes, that's implicitly converted

[lean lotus]

oh wait really? hang on

[grand jolt]

Vector4 a = new Vector4();
Vector3 b = m * a;
``` compiles just fine

w component is discarded obviously but I assume that's what you're looking to do here.

[lean lotus]

I need the w component to stay and be 0

[grand jolt]

well a vec3 doesn't have a w component and your A input is I assume one where you can set the w = 0 so it's 0 or undefined all the way through.

so, equiv to float4(float3, 0)

[lean lotus]

so Matrix4x4 * Vec3 is equvilant to mul(Matrix4x4, float4(float3, 0))?

[grand jolt]

Yes, Vec3 is implicitly converted to Vec4 with w = 0 iirc. But this is one of those "try to be sure things". I can't remember the last time I needed that.

hello there can anyone help me figure out what's wrong with my outline shader?

[lean lotus]

ok thanks

[dim yoke]

You tell whats wrong we try to find solution to it. Id set the alpha clip threshold to 0.5 but other than that i see nothing wrong. So whats wrong? What it looks if its not correct?

[grand jolt]

@dim yoke it looks like this

not exactly what I pretended

I've followed a lot of tutorials but none gives me the same result

Either it fills everything with the color or something like this, and it never looks like an outline as I wanted

[tepid robin]

so, i want to do something super simple using HLSL but dont have the first clue how to do it
i essentially just want a circle thats on the surface of the object, that i can also change the "blur" or smoothness of
with configurable radius size and smoothness

im forced to use 5.6.3

[dim yoke]

Moving along normals wont work for flat shaded meshes. Have you tried any existing outline effects from asset store for example?

[grand jolt]

I've tried simply multiplying the positon, why doesn't that work either?

I'm trying not to use the outline from the asset store, it should be simple enough for me to be able to replicate :/

[dim yoke]

Well its not perfect but should work better atleast

[grand jolt]

i'll show you the result just 1 sec

it now gives me this it's really weird

how can I just have the red outline but show the real texture in the middle?

[dim yoke]

Did you try to set the alpha clip threshold to 0.5?

Front face culling should do that but if it doesnt happen, idk why

[grand jolt]

idk it's really weird

i changed the threshold to 0.5 but arranging the options the resulkty is never good

i mean shouldn't the outline depend on the camera?

[tepid robin]

how would i make a simple circle on the surface of an object with shaderforge?

configrable vignette radius and smoothness

[grand jolt]

hey uh guy so im tyring to create a retro effect for my game but the camera says display 1 no camera
[7:20 PM]
how do i fix that
[7:20 PM]
and make it work

i meant it says

camera display 1 no camera rendiring

[desert dagger]

Does anyone know how to fix this weird rendering with a transparent fresnel shader?

I have it rendering on both sides since the player is meant to be able to see the effect while inside the sphere.

Another issue is that the effect becomes a lot brighter when inside the sphere.

[tepid robin]

so, UVs start in the bottom left corner right

at 0,0

which means if i want to scale something its like

scales from there

but how would i make it scale from 0.5,0.5? if that makes any sense

(the center of the UV)

ive tried shifting it over to 0,0 , then scaling it, then moving it back but that doesnt seem to change anything?

[meager pelican]

Do it on paper first.

But note that UV's wrap around assuming wrapping is configured for the texture sample. That's how tiling and offset work. Tiling is multiplying, and offset is adding.

But I'm not sure exactly what you're asking. Do you want your logical-zero-zero sample to be the center of the texture? If so, you'd add (.5, .5) to your UV value. But your lower left corner would be (-.5, -.5) and your upper right corner would be (+0.5, +0.5). That's offset, not scale.

To scale, you'd do some multiply operation. For example to scale a texture to be 2 x 2 on a quad, you'd multiply the UV (which is the 0,0 at lower-left one) by 2.0 in both x and y.

And I have no idea what your pic is showing.

[tepid robin]

essentially what im trying to do

is like

a vignette for a scope right

its just a circle thats on the surface of a circle object

and based on the camera distance, it grows/shrinks

[meager pelican]

scope shaders are a bit more complicated than just tiling and offset. I suggest you google around for "scope shader" and see what you get. There's several methods depending on what you want exactly, but the involve a different perspective.

[tepid robin]

i just want the vignette

i already have shaders for the texture and the reticle

[grand jolt]

hey there, sorry to botehr you once again but I followed this tutorial 100% and i'm not getting the same result... am I missing something? Any unity update? https://www.youtube.com/watch?v=XPGpaA-JExA

[meager pelican]

OK, then do a distance calc from (0.5, 0.5) and use the result as a "degree of darkness" scaled by whatever math you want.

[tepid robin]

i managed to fuck around with the UVs and get the scaling working

i guess

like the center point of the circle is at 0,0

so it should work

im too tired for this my brain is explODING

i just want the camera distance

but i cant find that

[desert dagger]

I have no idea how to fix this rendering issue. (Picture below)

[meager pelican]

I haven't messed with shader forge in a long time.
And by "camera distance" you mean what, exactly?

Pixel depth is probably a node. Maybe linear eye depth 0 to 1 type of thing.

Distance from camera to scope would be the camera pos in world space, and the scope position in world space, run through a distance calc.

[tepid robin]

distance from camera to scope

so what would a distance calculator look like?

[meager pelican]

hlsl has a built-in distance function. And IIRC also a squared distance function that avoids doing square roots (faster).
There's probably a node for distance calc between two points.

In code it looks like:
float dist = distance(point1, point2);

[tepid robin]

!!!

progress

it scales based on distance

found a distance node

[meager pelican]

There ya go!

[meager pelican]

Without more info on the shader, there's no way anyone can really answer that. I suspect lighting issues.

[tepid robin]

alright, so essentially the last thing is adding blur

i dont know how i would even start that

ill do that tomororw

[desert dagger]

It's a transparent material with a Fresnel effect on it.

[grand jolt]

has someone here made a bloom shader to attach to objects? can i have it pls?

[tame topaz]

That's called Post Processing

[meager pelican]

lit or unlit?
Is it doing environmental reflections?

[grand jolt]

no post processing blooms everything

[desert dagger]

Reflections and Lit.

[meager pelican]

Well, that's likely part of the problem...

[grand jolt]

I want the shader script to give to my material

is there a library of unity shaders somewhere?

it appears id have to make my own

[meager pelican]

Not exactly. It blooms whatever is set to bloom (qualifies for blooming).

The thing is...you cannot easily draw outside of a mesh bounds on a shader for the object. That's why bloom is done in post-processing.

[grand jolt]

So i have to download the Post Processing package?

ok thanks. wonderful. saves me a bunch of effort

yes im super happy now that you told me about this. 😃 thanks

[grand jolt]

First shader 😬

[white marsh]

I have a question, im using a singular dot texture to create this effect here and im tiling it. But it would look a lot cleaner if i could have it tile hexagonal instead of qubic. Is there any easy way if achieving that kind of effect?

This is how i want it to look

[desert dagger]

Thanks for the help, I changed my material to Unlit and immediately the rendering looked a lot better.

[dim yoke]

Could you just make seamless texture like this and use it instead?

[white marsh]

i thought of that, but im pretty sure that will cause some of the dots to look choppy, but i suppose i can try

[dim yoke]

If you make the resolution high enough, you should have no problem with that

[white marsh]

yeah that seems to have worked

thanks, also i dont know why but for some reason i cant figure out how to apply the texture in screen space

anything ive tried the texture ends up being warped

looking along world x and world z.

[latent thistle]

this is not exatly what i currently do ?

[dim yoke]

Show the shader code/graph

[white marsh]

            fixed4 frag (v2f i) : SV_Target
            {
                float3 N = normalize(i.worldNormal);
                float3 V = normalize(_WorldSpaceCameraPos - i.wPos );
                float3 H = normalize(_WorldSpaceLightPos0.xyz + V);
                // Diffuse
                float shadow = SHADOW_ATTENUATION(i);
                float NdotL = max(0.0, dot(N, normalize(_WorldSpaceLightPos0.xyz)));
                
                // Cartoon Detail
                float4 _DetailTex = tex2D(_PatternTex, _PatternTex_ST.xy * V);
                float dots = step(_Size * NdotL, _DetailTex);
                float4 light = floor((NdotL * shadow)/_Detail * 1-dots) * _LightColor0;   

                float4 DiffuseToon = (light + _AmbientColor) *_LightIntensity + _Brightness;
                
                // ... the rest of the shader
            }

this should be plenty to se the problem

[hollow latch]

Hello guys I need help to make a sphere that while following the player throws particles that when touching the ground draw a mesh or a texture.
I want to use a CustomPassFullscreen for it, but I don't know how to do the shader part

First I'm trying to render the pixel redder the closer to the camera it is, but I can get it to work.

float4 FullScreenPass(Varyings varyings) : SV_Target    {
float depth = LoadCameraDepth(varyings.positionCS.xy);
float customDepth = LoadCustomDepth(varyings.positionCS.xy);
return float4(1.0, 0, 0, depth-customDepth);
}

[grand jolt]

I meant depth textures. Basically, I was trying to compute fog in a local volume, like a cube

And I thought about using the depth texture, color the white part and sample the main tex so the black part is invisible

I'm still a biginner about shaders though

[magic ravine]

anyone got any idea why i can't see shadows in game view?

[fossil cloak]

Maybe "Render Shadows" is deactivated on your camera?

[magic ravine]

I'll take a look

Thanks

case closed

(y)

[fossil cloak]

good ^^

[magic ravine]

unity wont accept my shader file with a .txt extension

how do i make it a hlsl?

[viscid bronze]

how do i remap an alpha like this but with 2 colors? cus gradient cant be make exposed and i want to edit it from outside

[weak condor]

rename the file in a text editor

[weak condor]

You could just sample an image instead.

[tender remnant]

anyone know if it's possible to blur during mipmap generation instead of the usual sharpening filters?

[knotty juniper]

Use a Lerp node with a and b been your wanted colors (with can be exposed) and the alpha is the input form the texture
if you still need more curve / gradient controll make a Black and white gradient and use it in between the texture and the lerp alpha

[fervent flare]

Anyone think they could help me figure out how to get a cubemap reflection to work in shadergraph ?

I can tell that the cubemap is doing 'something' but it seems to be treated as if it were a single color

as if it's tiling were 0.00001 * 0.00001

My current implementation

[meager pelican]

What's "World Space" coming in as?

[fervent flare]

I have no idea 👀

higher res version of screenshot: https://i.imgur.com/DaMpza1.jpg

[meager pelican]

You want that to be the surface normal direction, in world-space.
https://docs.unity3d.com/Packages/com.unity.shadergraph@12.1/manual/Sample-Cubemap-Node.html

It might default to the world-space surface normal if you just delete the link to "World Space" variable. Not sure though.

You've already got a world space surface normal in the graph though, so you could try plugging that in to "Dir" for the sample cubemap. (You'd have two lines off it, one to the cube sample, the other to the normal input on the vertex stage). @fervent flare

[fervent flare]

hm it won't let me plug the world space surface normal into the normal slot of the vertex section

is that maybe because one is object space and the other world space ?

[white marsh]

how can i overlay a texture on an object in screen space? in hlsl? whatever i try the texture doesnt keep the view angle for the camera so its in world space and not screen space

[dim yoke]

you have to use screen coordinates as a uvs on the texture sampling

[hoary merlin]

What resources would you guys recommend to get started with shaders as an artist? from general concepts and fundamentals to intermediate expert level (and engine-agnostic) preferably.

[hoary merlin]

I've found a few nice, such as Ben Cloward, Freya Holmer, TharleFX and a few others. I'd like to know if there are good sources of info on these eslewhere that explain things from an artist's POV, TIA

[white marsh]

Do u get the screen coordinates from computeScreenPos(v.vertex)?

Or is it something else?

[meager pelican]

Your pic showed it as world space.
They should both be world space, if your original is correct. Otherwise, just use two normal nodes, one for world and the other for object.
But, the one going into the cubemap direction is world-space per the docs.

Pretty sure, but I'm kinda guessing going off the docs.

[grand jolt]

https://thebookofshaders.com/ is a good place to start, and fiddling in tools like www.shadertoy.com will help as well. I'd avoid using ShaderGraph or any similar shader composition tools personally as they tend to obfuscate important performance and correctness issues but that's obviously highly subjective.

[white marsh]

anyone knows how i get the screen cords in shaderlab? ive tried thiis ^ and _ScreenParams.xy

[dim yoke]

I believe so. you do that in vertex or fragment shader?

[white marsh]

that should be vertex

[dim yoke]

in what space is v.vertex?

[white marsh]

it should be local

do i need to make it world?

[dim yoke]

you have to make it a clip pos

[white marsh]

o, that would make sense

[hoary merlin]

thank you! this seems like a wonderful resource. Regarding the shader graph thing, could you elaborate on 'performance and correctness issues'? What information is being obfuscated there?

[flat quail]

hey i'm really new to unity (i'm literally only using this to import a model into VRC) does anyone know how to fix a problem regarding textures not going on certain parts of a model? i was told by a friend to "mess around with shaders" but i don't really know what that means. all the textures show up except for certain parts of the jacket. if you need pics i can send em

[white marsh]

thankyu, that seems to be working, now i just need to tile it correctly

[hoary merlin]

yeah, please share some screenshots of the asset and textures

[flat quail]

blender version is the one on top, unity is on the bottom

@hoary merlin

[hoary merlin]

Can you share a screenshot with the wireframe enabled? and where are you seeing issues exactly? The front jacket part?

[flat quail]

yes, the front jacket is not showing up in the regular mode, it is showing up in render paths though

@hoary merlin

[hoary merlin]

it looks like the right jacket mesh is missing when imported to Unity

[flat quail]

how exactly do i fix that?

[regal stag]

The normals for those faces is probably inverted. Unity does back-face culling by default.

[flat quail]

is that a unity thing or a blender thing i have to do?

[hoary merlin]

i assumed the same thing, but the wireframe doesnt seem to show the jacket either

[hoary merlin]

if it's a normals issue, you'll need to invert the affected mesh's face normals in Blender

[flat quail]

i'm assuming that's a blender thing?

but my main confusion is that it shows up on render paths

so it knows the texture is supposed to go there

[regal stag]

You can view the face orientation in blender if you use this. Front faces are blue, back faces are red.
Can recalculate normals on faces using Shift+N (or Ctrl+Shift+N for inverted)

[flat quail]

thank you very much!

It works!

[meager pelican]

yeah, I looked it up.. The one going into the vertex stage on the master stack is object space. Just use two of them, one for the master stack in object space, and the other for the cubemap direction in world space.

[white marsh]

i cant figure out why the texture is streching on the edges. this is how i get the screen space and apply it as the uv
o.pos = UnityObjectToClipPos(v.vertex);
o.scrPos = ComputeScreenPos(o.pos);
float4 _tex = tex2D(_PatternTex, _PatternTex_ST.xy * i.scrPos);

[regal stag]

When in the fragment, you need to do i.scrPos.xy / i.scrPos.w to handle the perspective divide and obtain the true 0-1 screen position.

[white marsh]

oh, true. i actually have read that but i keep forgetting, thanks

[lean lotus]

so unity says that by using dx12 and #pragma use_dxc, I can get access to shader model 6 stuff, so why do shader model 6 functions not work and are unknown

Also, how do I exclude compiling shaders for dx11, but DO compile them for dx12?

[warm marsh]

What is the best way to modify the values of a material shader in shadergraph per instance that it is applied to?

[shadow locust]

There's nothing special about shader graphs, they're regular shaders.
You use Material.SetXXX methods as usual.

and you use Renderer.material to access the material - that will create a unique instance of the material for that particular Renderer

[delicate wagon]

I'm trying to make a Halftone shader by following this excellent guide: https://weber.itn.liu.se/~stegu/webglshadertutorial/shadertutorial.html. I ported this to Unity and expanded on this shader to support dot frequency on the x & y axis separately for non 1:1 aspect ratios. This works well for 0 degree rotated pattern (Y part of CMYK), but for other angles like 45 degree the dots deform. How could I fix this shader to produce perfectly round dots at any rotation angle? Here is my shadertoy summarizing the problem: https://www.shadertoy.com/view/7sccW8

[white sundial]

does anyone know how to make a sphere render from inside out?

I could really use some help with that

[amber saffron]

Invert the normals ?

[white sundial]

got any reference?

[amber saffron]

The easiest would be to just create a sphere mesh in a 3D tool with inverted normals 🙂

[white sundial]

Any URP graph ideas tho? This sounds crude.

[amber saffron]

iirc, urp doesn't have a front face culling option, so the only way to do it is to enable double side and the shader, and discard pixels of the front face.
This is sub-optimal and having a mesh with already inverted normals would really be better.

[mental bone]

When it come to CG crude is always better 🤣 🤣

[white sundial]

Yeah, I can't really do any 3d software

So I'd look for a different option.

[little marlin]

is it possible to create custom layered material in unity using shader graph ? seeking on internet and lots of people asking same question but still left unaswered.

[amber saffron]

Why.
What you're asking is as easy as :

• open blender
• create new sphere
• flip normal
• export

[amber saffron]

Layered by "layering multiple textures set like a terrain" : yes
Layered by "layering passes" : no

[white sundial]

how do i flip normals?

[amber saffron]

In edit mode, select all faces, alt+n for normals menu, select "flip"

[little marlin]

yes, im looking layering multiple textures set like a terrain, but i'vent seen for shader graph tutorial/resources out there, do you know any for guide ? i expect some basic guide to create one, and put my needs after proper setup done. i wish it only needs shader graph and no custom node needed.

[white sundial]

what faces? I've sincerely never used it

[amber saffron]

No custom nodes is needed, you "just" need to stack the layers and blend them, probably using some lerps nodes.
lerp tex1 with tex2, lerp the result with tex3, lerp the result with tex4 ....
And this for each textures of each set

You'll also want to share samplers as you quickly might get to the sampler limit (16)

[amber saffron]

Please, a very fast google search would have lead you to good online resources : https://www.katsbits.com/codex/flip-normals/

[little marlin]

oh i tought it need some special setup like on UE, but if only blend using lerp then i think im good. yeah i understand with concept of Sampler State in unity.

[amber saffron]

I know you've said "no custom node", but just in case it might help : I've build up some helper nodes for stacking/blending surface data in my library here : https://github.com/RemyUnity/sg-node-library

[white sundial]

how can I see it even worked?

[little marlin]

btw, if you dont mind, few days ago, i had problem using vertex paint tool such as polybrush, the main problem is brush paint are not working,

after some deep dive on internet some people found that main issue is vertex paint using polybrush not working with FBX model, and only OBJ, is that true? if so, do you had recomendation for vertex paint tool ?

[white sundial]

To say blender it not anyhow responsive, nor intuitive would be quite an understatement.

The key shortcuts dont even work

[little marlin]

lovely, thank you for extra helps, appreciate this a lot

[amber saffron]

Since you seem to know UE, it's kind of a workaround to mimic the way it handle a surface description on the materials

[amber saffron]

Either export and see, or enable backface culling in the blender viewport

[amber saffron]

I've never heard of that, 99% of my models are FBX and I could paint on them.
But I think that the base polybrush shaders are not compatible with SRPs, that's maybe why ?

[little marlin]

i dont know if that was the main concern behind vertex paint are unusable using polybrush. but did you use any vertex paint tool before ? if yes, would you recommend one that working well with any RP ? tbf i use HDRP for now, and still looking vertex paint tool with scatter mesh feature inside.

[amber saffron]

I've used polybrush with HDRP, it works.
Haven't done it in a while tough, so there might be the compatible shaders/materials now, but at the time I just had to build a quick shader that used the vertex color to display them and it was fine.

[little marlin]

ah okay, seems i need to try it again. i may forget to add spesific setup as the vertex paint wont work with my shader graph material. alright thank you for the answer.

[soft harness]

any ideas on how to do a volumetric/godrays Image effect?
my current idea is to create a grid of points, and then check which points are in shadow, and which are not, then i step through the volume per pixel, and lerp between the nearest points and affect the pixel color in a way that makes sense. this should give me a volumetric effect, or at least an approximation that would be passible, but currently i'm having issue knowing if any points are in shadow, as i can not access any shadow data, nor do i knwo how to make my own

[amber saffron]

The "realistic" method is to pass the lights informations to your shader (type, transform, shadowmaps), raymarch the screen pixels and for each step accumulate scattered light depending on a fog density and the ligths data.
The less realisity way to fake sun godays is to do a bloom like effect with a radial blur centered on the light.

[topaz marsh]

Hello, how could I make the effect that is warping the background as the portal opens? I tried doing some UV offsetting of the SceneColor node, but it was changing when you rotate the camera and come closer or away from the effect. I am like 90% sure thats because all the calculations are happening in screen space. Aside from what I have tried already I have no clue how to do this effect.
(Im using Unity 2020.3 with URP)

[topaz marsh]

check if the shader type is lit and not unlit

if you had it on lit then changed the values and then switched to unlit the changed values will remain grayed out to preserve the data

[sinful cairn]

@marble plover In the graph settings, under graph inspector, in shadergraph

[sinful cairn]

Hopefully this is a simple question:
I'm trying to make a shader in shadergraph that scales a sprite so that it stays at the same resolution no matter where it is in relation to the camera.
So if the sprite is 64x64, it always occupies 64x64 pixels on screen, regardless if it's close to the camera or far away.
Bonus points if it's billboarded as well (I have a shadergraph that does that, but not the scaling part of it).

[grizzled bolt]

Are you sure it needs to be made in a shader? What kind of application is it

[sinful cairn]

It might not need to be a shader, I'll go with the best solution.
It's a tile-based dungeon crawler, with a 3D viewport. But the monsters will be sprites that are drawn in the viewport.
If I just place the sprite into the scene, it's scale is all messy and doesn't match the resolution of the sprite. I can fiddle with it and find some magic numbers, but that seems potentially problematic if something else changes.

@grizzled bolt

Here's a better pic, where I've got a UI image that shows what the sprite should look like

I'd use UI images, but there might cases where level geometry is in front of the monster sprite, and I'd want the bottom of the monster to be properly occluded when that happens

[grizzled bolt]

Hopefully this is a simple question

[ruby kernel]

how do i do so you cant see thesse things where its look like the pixels are very low

[bleak tundra]

im trying to blend tiles using alpha by oversizing them a little

but i have a tile palette

and it isnt taking UVs of just one tile

but of the palette

or does anyone have a better idea for tile blending

[strange sonnet]

use splatmap 🤦‍♂️

[grizzled bolt]

How would you implement a splatmap into a tilemap system?

[strange sonnet]

how would you do it then

[grizzled bolt]

With terrains that makes sense as you know where each map starts and ends but tilemaps are usually more freeform than that

But a 2D tilemap splatmap would be interesting, don't get me wrong

[grizzled bolt]

Honestly I'd dodge the whole challenge and just make multiple overlayed ruletile-tilemaps with alpha at the edges
But if I had to tackle it I'd try to figure out some kind of vertex painting for the blending, but that can't be done with just shaders

[bleak tundra]

👍

would you happen to know how to blend between two textures

[grizzled bolt]

A whole lot of ways to do that

[bleak tundra]

i mean

like tile blending

i dont want to use two tilemaps because of performance

or are tilemaps optimized enough for that

[grizzled bolt]

That's a complex feature if you want to make it all dynamic
You could have each "blend" drawn on the tilemap like how it was done in old games

[grizzled bolt]

That depends on your performance targets, I suppose

[bleak tundra]

theres no fps difference

negligible

i think im gonna rework my terrain generation

[hazy meteor]

I have this quad and the material is a render texture from a camera. Can I flip the color that the material will be filled outside instead of inside

[soft harness]

is there no way to unitlize the already created shadow system?

[meager pelican]

shadow mapping exists for solid objects already in the scene. IIUC, each shadow map is rendered based on a view of the scene from the light source's perspective. It actually redraws the entire scene as if the light is the camera, but the frag pass is really low cost in terms of processing. https://docs.unity3d.com/Manual/shadow-mapping.html

Anyway, what it DOESN'T do is tell you were the shadow is in the "air" between the light and any of the objects, but maybe you can calc that, IDK. You're back to what amounts to ray-casting again, most probably. But you'd have a ray from your pixel to the light, and decide if the length of that is "in shadow" based on the shadow map's "depth" info.

So you can do a low-res ray cast, which seems to be sort-of what you're already talking about (grid of points = low res render).

Researching volumetrics is a thing in and of itself. Like Remy said, accumulating density info as you go is another aspect of the effect.

[ocean bison]

is there a function to "shift bits right" in shadergraph? trying to convert this guy ``` float DecodeSlopeScaleFromFloat(float encodedValue, int cornerID)
{
int encodedInt = (int)(encodedValue);
encodedInt >>= cornerID * 2; //SHIFT RIGHT
encodedInt &= 0x03;
float scale = 0.1;

            scale = 1 - pow(_UseSlopeMap, encodedInt);
            if (scale < 0.1f) scale = 0.1f;
            return  scale;
        }```

[warm marsh]

Is there a way to run one shader after the other using shadergraph? Meaning, combine two modular shaders together?

[shadow locust]

You can use subgraphs:

https://docs.unity3d.com/Packages/com.unity.shadergraph@14.0/manual/Sub-graph.html

[soft harness]

trying to get a position from a depth texture, this is what i've got so far but it's off

                depth_ray = lerp(lerp(FourCorners[0], FourCorners[1], uv.x), lerp(FourCorners[2], FourCorners[3], uv.x), uv.y);
                float depth = Linear01Depth(SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, uv));
                float3 wsPos = mul(unity_ObjectToWorld,_WorldSpaceCameraPos + depth* depth_ray);```

it seems to change depending on the camera's rotation

this is what is getting the corners:

    {
        float camFar = camera.farClipPlane;
        float camFov = camera.fieldOfView;
        float camAspect = camera.aspect;

        float fovWHalf = camFov * 0.5f;

        Vector3 toRight = camera.transform.right * Mathf.Tan(fovWHalf * Mathf.Deg2Rad) * camAspect;
        Vector3 toTop = camera.transform.up * Mathf.Tan(fovWHalf * Mathf.Deg2Rad);

        Vector3 topLeft = (camera.transform.forward - toRight + toTop);
        float camScale = topLeft.magnitude * camFar;

        topLeft.Normalize();
        topLeft *= camScale;

        Vector3 topRight = (camera.transform.forward + toRight + toTop);
        topRight.Normalize();
        topRight *= camScale;

        Vector3 bottomRight = (camera.transform.forward + toRight - toTop);
        bottomRight.Normalize();
        bottomRight *= camScale;

        Vector3 bottomLeft = (camera.transform.forward - toRight - toTop);
        bottomLeft.Normalize();
        bottomLeft *= camScale;

        return new Vector4[]{ topLeft, topRight, bottomLeft, bottomRight};
    }```

[soft harness]

Nvm I did it
I have been trying to do this for several hours

[white marsh]

how do i sample the depth texture without the shadergraph?

is it like this?

float2 _ScreenSpaceUV = i.scrPos.xy/i.scrPos.w;
float depth = tex2D(_CameraDepthTexture, _ScreenSpaceUV);

[simple violet]

https://youtu.be/yUVrtPCsCb0

[white marsh]

thanks, now that ive got it working i want to have the entire depth be a solid color and not a gradient across it since i want it to look flat. its hard to se but this black is not 100% black
This is the code im using to get the depth texture

float2 _ScreenSpaceUV = i.scrPos.xy/i.scrPos.w;
float depth = Linear01Depth(SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, _ScreenSpaceUV));

basically my goal is applying a texture through screen UV, and have it be a constant size on the object instead a constant size to the screen

[regal stag]

Instead of using the depth texture then, you'd want to transform (0,0,0) in object space (the origin of the sphere) into view space.
-positionVS.z will give you the eye-depth to that point. (If you need 0-1 depth, can then divide by far plane distance, _ProjectionParams.z)

[white marsh]

ok thank you

[soft harness]

I'm trying to do the raycast method now, but i can't for the life of me figure how to to know if a ray is colliding with something in my scene, any ideas?

[amber saffron]

What are you refering to as "the shader sections" ?

And what shader ?

Oh, but indeed, "albedo" is refered as "base color"

Maybe, I can't remember when/where :/

I don't have that.
But I don't think anything else has been renamed 🤔

[austere creek]

why does the Sprite.uv array have 6 values? Why not 4?

same with vertices actually 🤨

[shadow locust]

it has a value for every vertex in the sprite mesh

[austere creek]

you'd think the sprite mesh would be a quad 🤔

apparently not?

[hushed basin]

why my preview show nothing?

what split does?

[regal stag]

If you connect the Out(4) directly to Alpha, it'll truncate the vector to the smaller size (1), which takes the red channel. Which is likely not what you want. Split allows you to obtain the separate components (labelled XYZW or RGBA) of the Vector4, so you can access the Alpha (A output). Alternatively can use the Swizzle node.

The Main Preview probably shows nothing because the Color property defaults to Alpha=0. Can adjust it under the Node Settings.

[regal stag]

It can depend on the sprite settings. If the Mesh Type is "Tight", Unity generates a different mesh per sprite to reduce overdraw in completely transparent areas. Could have many vertices then.
When set to "Full Rect" it would look like a quad, though it would still be two triangles. Not sure why it wouldn't share vertices though.

[white marsh]

i am for some reason not able to get this working, positionVS should be the camera in view space right? so it should be float depth = UnityObjectToViewPos(float3(0,0,0)) - UnityWorldToViewPos(_WorldSpaceCameraPos)?

[regal stag]

Should just need float depth = -UnityObjectToViewPos(float3(0,0,0)).z. Also * _ProjectionParams.w if you want 0-1 range rather than eye/units.

[white marsh]

thanks, now that works, i guess im just stupid and didnt realise what you meant in the first reply but now i se

[naive shuttle]

Hey. I have 2 clay shaders, of which 1 is a wet clay shader, and the other is completely dried out "brickish" clay shader. Is there a way for me to overlap the two shaders? My goal is to make it look like the clay is drying, though the 2 shader graphs are too different that I'm not able to merge them together. Any help?

[vague ginkgo]

use the blend node two blend the two RGBA outputs from each shader?

with the opacity of the blend being linked to time?

[naive shuttle]

Hmm I see. That could work, thanks! I'll try it out tomorrow.

[vague ginkgo]

you should be able to save each shader to a subgraph and then add each subgraph to a single shader

[naive shuttle]

These are the 2 shaders. I've made them in Blender thought it shouldn't be too hard to remake it in Unity right? The shader graphs are like 99% the same

[naive shuttle]

Can't I just stuff both shaders into 1 shader, and then apply the blend?

[vague ginkgo]

you can, but I think subgraph would be better for organization. It basically takes your shader and makes a single node

[naive shuttle]

My laptop is lagging so much from just rendering these 2... idk why lol

[vague ginkgo]

I have a shader I'm using to distort the air above the fire. I'm currently using a second camera with a cull mask that only renders a white sprite and I'm creating a mask to apply to a full-screen effect.

you can see the effect here

however, I want the intensity of the distortion to taper off at the top and become less pronounced, but I'm not really sure how to do that for each fire?

as you can see as I add more fire more holes appear

[native mulch]

Can anyone advise how to get materials working properly after importing an FBX model?
I've exported materials but everything is still greyed out. I've googled a lot but nothing is working so far.

[vague ginkgo]

I thought making the mask fade into black would work but it seems to create a lot of artifacting

you can see what happens if I try to use gradients

I imagine it's most likely because I am subtracting the mask from the main texture that I'm blending it with(the unaffected areas) because when I wasn't subtracting them I was getting a bad double render of the unaffected tiles and the distorted tiles overlapping

[cunning geyser]

Hii i have a terrain with a very somple texture layer on top of it(rock pattern) but it has this weird reflection even when the metallic settings on the layer is 0, how can i get rid of this?

[real venture]

Hello, I've applied a shader to a tilemap, but why is the effect different for the tiles in the middle? I suspect it's because the tiles come from different sprite sheets of various sizes, but how would I apply the effect evenly over the tilemap?

[meager pelican]

I m trying to do the raycast method now

[naive shuttle]

Hey, why is the colour I inputted much darker than it really is?

[burnt wigeon]

Wondering, is there a way to make the Scene Color node in shadergraph be accurate to the scene?

Every combination of parameters end with a clear tone difference

here you can see the box outline

[visual stratus]

Whoah! It's you!

[burnt wigeon]

That's me yes

[wanton grove]

How do I make URP decals only affect certain objects?

[meager pelican]

When is it used?
Just guessing, but a lot can happen between the "snapshot" of the scene, and the use of the snapshot. The scene color node in URP happens after the opaque pass and before the transparent pass. But your USE of it...well....usually in the transparent pass but if you're using it later than that, it may throw off the results. 2-cents.

[burnt wigeon]

that one is just a simple Scene Color > Base Color connection directly, doing nothing to it so far

but yeah it might be when it is happening, sadly I tried using all of the possible order combinations without luck

I still ended with something usable, just not what I needed haha

I was trying to create a distortion effect for a forcefield barrier

ended with a pretty nice glass shader with distortion haha

[grand jolt]

Is it possible to make this ash plume in a shader graph?

[shadow locust]

Looks more like a VFX graph thing

[grand jolt]

But that would require lots of particles i think

[shadow locust]

sure would

luckily VFX graph is really good at that

[grand jolt]

But i think i could achieve a similar effect adding the shader graph

[shadow locust]

you'd have to make a complicated mesh to apply the shader to

[drowsy linden]

this shader here is getting this odd... depth issue? I don't know what to make of this. Can someone help me out here. The branches are supposed to be inside the leaves

[cosmic prairie]

use world position instead of uv for the effect

[mental bone]

Im guessing your branches are on a different material. Change the render order if the leaves material to be higher than the branches

[modest basin]

Is there anything I can do about these breaks I get in the outlines of most toon shaders?

[dim yoke]

Youd need some complicated ray marching shader to do that. Using vfx graph would be easier and possibly faster too

[real venture]

Thank you very much!

[cosmic prairie]

You are welcome! 🙂

[meager pelican]

You'd need a "video" (flipbook type) of set of images, that is normal mapped. You could then apply lighting calcs to it. Or burn them into the result if you're using a fixed light position for all your scenes and your camera is always pointed in the same direction.
You can research "lit particles" to get the idea, it's just that texture's pixels are the individual particles. Or like PraetorBlue is saying, just use particles, preferably in VFX graph like he says. Those particles are GPU based and pretty fast.

[simple kite]

how do i make a shader graph for procedural generation(im using perlin noise ) and make it so that water which is 0 height fr my case and assign only water the shader

[dim yoke]

Make new plane for the 0 height and apply the water shader for that?

[naive shuttle]

From blender to Unity... wtf

[simple kite]

idk if tht will work , im following sebastian lauge's tut on procedural landmass gen but only till episode 14 since i dont need any of his vids after and some of is code is broken and i also dont knwo how to use shaders much

[soft harness]

how do you acess a light's shadowmap in the image texture

in an image effect*

sorry, my brain's frazzled

[fervent spire]

i have a setup like this in my shaders, the halo thingy is a bigger capsule that has a custom shader, and the inner white blade is just a smaller one with an emissive white. I’m making a mod for a game with this, so i can’t use bloom, but how do i make the white part show up as a bright white? it always shows behind the blue, so it’s tinted a tiny bit blue

[low lichen]

Make sure you're using additive blending and that you have at least a little of red, green and blue in the color, even if it's just 1/255. If it's bright enough, it will clip to white.

[fervent spire]

how would i make additive blending in the shader graph? Sorry, i’m new to this

[low lichen]

Where you changed the shader from Opaque to Transparent there should be something called Blend Mode or Blending Mode.

[fervent spire]

well that’s the thing, it doesn’t change from opaque to transparent, the white part and blue part are different models and shaders

[low lichen]

But if the blue halo thingy isn't transparent, how are you seeing the white emissive inner part tinted blue through it?

[fervent spire]

it is, i thought you meant the part where it goes from transparent (halo) to completely opaque (the white part)

[low lichen]

I meant make sure the blue transparent shader is using additive blending.

[fervent spire]

so what blend mode do i change this to?

[low lichen]

I'm not talking about the blend node. There's a specific place where you change the shader from Opaque to Transparent. I don't know where that is in the latest version and I can't find documentation about it.

[fervent spire]

i found it, and it worked, thanks

[lime star]

got some questions about compute shaders, first of all: is there a way to make methods in a compute shader apart from kernels? havent been able to find how yet, secondly: if i make an output texture that has a size that isnt a multiple of the amount of threads allocated (for example 10x10 texture in a 8x8 compute shader), how would i make it so it still runs the compute shader for the "excess" pixels (the last 2 rows and columns)

currently the above example returns this (8x8 bottom left gets processed, top and right 2 rows don't because they fall outside the "numthreads area" (8x8) )

[naive shuttle]

Why does it looks so weird?!

It's supposed to look like this

I've been working on this for 24 hours already, and I just can't get the material working! Someone help pleasee

[naive shuttle]

<@&502884371011731486>

Not sure which role to ping

But this seems like a scam

Not sure how it's a scam though. It just seems suspicious

🧐

[shadow locust]

At best he's spamming every channel

[naive shuttle]

yeah

There's no link though

Crappy scam lol

Ok he's already been banned

[visual stratus]

Ahh I love listening to Underverse Soundtracks. ||(Shouldn't Talk About this in here)||

[young vale]

Is there a shader graph keyword that serves the same function as the scripting symbol UNITY_EDITOR in C#?

I have a shader that disappears the further the pixel is from the camera and I'd like to stay fully visible when in the editor

[real plover]

I'm trying to create a shader that has emission via the color? (I think this is the correct term but probably not?) so it produces a bloom effect.

I've noticed that using Blackbody for the color doesn't give me an HDR effect?

How would I go about enabling this?

[dim yoke]

It seems such feature doesn't exist atleast yet: https://forum.unity.com/threads/using-if-platform-defines-in-shaders.127541/

[simple kite]

how do i make the shader on the ryt only cover the blue region (im using sebastian lauge's procedural gen up to ep 14)

[dim yoke]

in theory you could make separate logic for the ground and the water and use branch node/ternary operator on shader code to switch between them using the height or whatever but that sounds quite wasteful

[simple kite]

so wut do i do do i use noise node or smtg

[dim yoke]

Id just put the water plane on top of the ground plane. that way you could use partially transparent water shader and still see the ground under the water

[simple kite]

oh tht cud wrk

i tried putting it on top of the ground but now i realized i cud make it

transparent

[grand jolt]

Why is my shader graph ignoring transparency on VFX Particles?

[analog crest]

any idea on how i can get rid of the mesh disappearing at certain angle ?

[grand jolt]

hello can anyone help me make a static shader? in unity standard

[dim yoke]

what you mean by that? like the old screen no signal stuff?

[grand jolt]

static effect

like this

animated

[dim yoke]

so are you using shader graph or doing handwritten shader?

[grand jolt]

im using unity standard so i cant use graph

[dim yoke]

by standard I assume you mean built-in render pipeline. nowadays birp supports shader graph too but anyways, you could just yoink some pseudorandom hash function like this one: https://www.shadertoy.com/view/4djSRW. if you add something like sine of the time to the uv coordinates, youd get randomized static effect

[grand jolt]

uhhh

ok but what do i do now

do i have to copy the code?

[real plover]

https://gyazo.com/42fdfaecbc4f381d7ba90a9a3b19e57f

Thoughts?

[dim yoke]

those are the "bad old" has functions (lol, unity uses the upper one for the shader graph random function). you can go to the Common page to get the better ones

@grand jolt because you want to give the x and y screen coordinates/uv coordinates in the random function and want to get single float to represent the grayscale color (0 being black and 1 white), you want to choose the 1 out, 2 in... option

@grand jolt note that shadertoy uses glsl and unity uses hlsl. only thing you need to change is to remove t from the fract function (so just type frac instead, the function is just named differently in hlsl) and replace vec by float

[grand jolt]

idk what to do i never made a shader before

[dim yoke]

then youd be better to learn very basics of shaders first 😄

@grand jolt btw how are you going to make the effect? do you want to apply it to certain mesh (like computer screen) or do you want to render it as full screen post processing effect?

[real plover]

Replying to myself: I like how it looks more realistic, however, Im finding that the different types of stars aren't obvious? And I feel like they should be more obvious.

[grand jolt]

mesh

im gonna put it on a plane

[grand jolt]

😦 i thought you could help me

[dim yoke]

I didn't mean to be rude. I can very well just give you the ready code but that's usually not something we do here. We could make new thread for this if you want me to teach how to do that step by step

[grand jolt]

yes please

thank you!

[dim yoke]

😦 i thought you could help me

[karmic hatch]

just multiply by something >1

[jovial current]

Hi! I'm new to Unity, and I'm looking to create a metaball-esque shader. Essentially, a shader to add to my rigid body sprites that detects other nearby sprites and sort of smushes them together to fill in gaps. In the screenshot below you can see the gaps in between the blue circles, with this material it'd look like a smooth surface or fluid. Please let me know if you have any ideas, thanks! 🙂

[jovial current]

Btw just incase you've never seen a meta ball, here's a bit more detail! The picture below shows two spheres in step 1, and as they move closer throughout the steps, they slowly grow toward each other and eventually form into one smooth mass. 🙂

[cosmic prairie]

I guess you could render them onto a different texture, slightly larger than they actually are so they overlap, and use a smooth particle for the texture. (Experiment with blend modes for transparency, I guess additive would work) Once you have that, you can increase the contrast on the whole thing (a pow() could work), tweak the color, and apply it back to the screen

[jovial current]

That seems like it'd be perfect... are there any videos you know of that could walk me through most of the process? I'm a day one newbie so this is a bit new to me XD

[cosmic prairie]

Uhm lemme see...

https://www.youtube.com/watch?v=_8v4DRhHu2g

this seems like it mostly covers it

but instead of making it low res, you could do the thing I said in the shader graph

[jovial current]

Oh I'd actually watched that video lol, I can't seem to get the smoothing part to work though for some reason... def user error

[jovial current]

Yup I'd like to have it 100% in the shader graph, unfortunately Code Monkey's method uses a camera and render target :\

I know Metaballs use the Marching Squares algorithm, but that seems a bit advanced for me atm...

Tysm for all of your help so far though! I'll try looking into getting a result like the first one you showed me 🙂

[cosmic prairie]

You can't really do it in a shadergraph alone

since you need a separate texture to render the fluid to

[jovial current]

Hmm... is there possibly a method then that maybe uses a script instead of a camera and quad in the scene?

[cosmic prairie]

this is basically 2d metaballs what I described

just done a bit differently 😛

[jovial current]

Lol yeah... I might try the Code Monkey one again and seeing if I can find out what I did wrong

[cosmic prairie]

Okay, if you get stuck feel free to write here, or dm (that's faster :D)

[jovial current]

Tysm! I will! 🙂

[soft harness]

Do the built in Light variables work in an image shader?

[unique oar]

is there a good way to program your own surface shader in URP?

i can't find anything online except like, 4000-lines-long shaders

i just want a lit surface shader

and I really don't want to have to make this in shader graph because it will be very messy

[clever lynx]

Is there a way to blend reflection probes based on their distance from the mesh rather than the intersecting volume?

[weary dust]

hello, i understand zero about shaders

and i want to paint a texture2D on a material

im using mobile so i'd like to be cheap

the deffault one that appears is UI/Unlit/Detail

is this a good choice?

im having some memory problems and im trying to discard all possible causes

maybe unlit/texture?

[dim yoke]

Other than lit shader graph, no. Unity is currently working on surface shader support for urp and hdrp but atm theres no any easy way to do that (well, the shader graph approach is usually enough)

[stone tiger]

Hey guys, really noobie question but does anyone have an idea to get a simple atmosphere shader working around a cube like: https://i.imgur.com/0MFdPoy.png.

[cosmic prairie]

Do you want it to be lit like in the picture? (Shadow on the darker side)

If yes, look into raymarching

if not, you can draw an invisible inside-out cube around it first that writes to the depth buffer, and a second cube that is not inside out, which reads from the depth buffer

like fog

or there may already be a volume like this in hdrp, check that aswell

I'm not too familiar with that

[soft harness]

I've gotten the shadowmaps to be passes into an image effect shader, what i'm not confused about is how to sample a world position into the corresponding shadowmap uv, similar to worldpos to screenpos, but there's not built in function this time. I was wondering if there was any matrix i can pass into the shader that i can use, or is there a more complicated bit of math i have to use here.

I'm not using a direction light, just points and spots, because they give me the atmosphere i'm looking for

[vague ginkgo]

is there any way to disable a blit(renderer feature) shader in scene view?

[fervent tinsel]

yes

you mean URP now,right?

@vague ginkgo

[vague ginkgo]

yes in URP. I have a heat distortion shader I'm using but I really don't want to see it in my scene view

[fervent tinsel]

https://github.com/0lento/URP_RendererFeature_SPI_Example/blob/3eac88ae9998de8a6e21a750948c99b32987689b/Assets/RendererFeatures/SaturationRendererFeature.cs#L13

@vague ginkgo ^ if you put early out for anything but game view it'll omit scene view cameras

you can put other rules there too

[vague ginkgo]

awesome thank you!

[grand jolt]

Just wanted to ask, where i could get more information on 4 dimensional rendering? I'm working on a Unity Engine implementation of the 4D world, and i need some advice regarding the slicing procedure of the tetrahedra.

[violet urchin]

Hello guys, new to HLSL and was wondering if anyoen has suggestions for plugins with visual studio?

[fervent spire]

how can i make it so the shader doesn't fade out when looking at it from above or below? i still want it to fade on the sides

it's setup with a dot product, absolute, and smoothstep type graph

and a blend to make it transparent

[white marsh]

is there any easy way to get object scale variables in hlsl? or is the best way to use a script and pass it into the shader with a property?

[dim yoke]

Theres ”somewhat” easy way but it requires 3 lengths (so 3 square roots + some more math). It would be better to just give it for the shader using c# script or in inspector using property

[white marsh]

ah ok, so not worth the effort to do it in hlsl i suppose then

welp thanks

[dim yoke]

Yeah, id not

[white marsh]

another question, what would be the best way to smooth the edge from the outline and the rest of the object? im thinking fresnel could maybe do the trick

[atomic elm]

How can I create a Triplanar shader that uses Object Space in Shader Graph? I'd like to be able to move the object or rotate it without the textures shifting around.

[atomic elm]

Thanks, but I'm not sure it's working. To test, I created two 3D cubes and scaled one up. The textures just resize as if it were a regular shader

[knotty juniper]

if you do it in object space it relative to the object not the world

[dark bloom]

Anyone have any tips for setting properties of instanced meshes with a graph shader? I'm using MaterialPropertyBlock.SetVectorArray, but it's applying the same value to all instances of my mesh, instead of one per instance according to the docs.

I have a feeling it's something to do with my shadergraph shader. I can see an "instanceId" node, but I don't know how to use it to pull out the right value from my vector array.

The docs seem to suggest it's possible (https://docs.unity3d.com/Packages/com.unity.shadergraph@12.1/manual/Instance-ID-Node.html) but there's no explanation of how, and google is coming up short.

[fervent garnet]

Hey guys my water shaderis not rendering in game mode for some reason

I have cinemachine etc

[meager pelican]

Last I knew, MPB's didn't work well with shader graph, other than for certain pre-set things like BaseColor. That one works. But your own user-defined stuff, didn't work. That's last I knew.

The usual method is to create separate material instances for each one (oy). IDK how you map unity's instance-id to your own custom buffer. And also last I knew, SG doesn't support custom buffers, at least not directly, although maybe a custom node works....

[fervent garnet]

been stuck for like 20 mins now

I bet my ass its like a button i misclicked but idk

not rendering shadows, or shaders

[dark bloom]

Ah, that would explain the lack of docs. Might be there’s something I can do with basecolor.. Thanks!

[fervent garnet]

Does anyone of you guys know?

Otherwise its fine ill just ctrl z and see if anything changes

[dark bloom]

your shaders are showing, it looks like there’s an issue with a depth pass maybe? I’m not sure, but one thing big difference is scene view isn’t the same camera as the game camera

[fervent garnet]

Hmm. probably.

It gives me the shadows in fullscreen

but the water is yet dead

[meager pelican]

                             length(float3(UNITY_MATRIX_M[0].y, UNITY_MATRIX_M[1].y, UNITY_MATRIX_M[2].y)),
                             length(float3(UNITY_MATRIX_M[0].z, UNITY_MATRIX_M[1].z, UNITY_MATRIX_M[2].z)));```
from here: https://docs.unity3d.com/Packages/com.unity.shadergraph@12.1/manual/Object-Node.html

Previously posted above (in SG object node pic form) by @knotty juniper for another question.  (They're pulling it out of the model matrix for the object). 
...Synchronicity....

[dark bloom]

hmm.. sorry I can't help more - I'm just starting out - but it does look like like it might be a depth buffer setting. The main camera could have the depth texture disabled? Or maybe try looking for depth buffer / texture in the pipeline settings?

[meager pelican]

@white marsh But like @dim yoke said, it's going to be faster to pass it in, since you don't have to do 3 length calcs (which may not be all that bad, but still).

[fervent garnet]

I found the issue, the Pipeline settings blew for some dumb reason, (its called a pipeline for a reason)

so I had to put the depth on (on) instead of (use pipeline settings)

[deep siren]

Can someone provide me a shadergraph or any type of shader that works with gpu instancing and srp batcher? I'm trying to get this to work for 2 hours and it just wont

[mental bone]

The two are inconpatible. Its either gpu instancing or srp batching

[deep siren]

https://gyazo.com/1d98ad45baf0bd8497f7f56cbfeb89a7

I do know the default urp shaders are incompatible, but the docs state there is a way to make a shader incompatible, I just can pull it off

[soft harness]

is there a curve function that can take a linear 0-1 range and make it give it a curve

like this

[dark bloom]

Each of these shows the math function when you click through https://easings.net. Looks like you want an ease-out-quad maybe

you could also play around with desmos to find the right curve; https://www.desmos.com/calculator/m1mf1ig7fi

or maybe a circle curve?

[soft harness]

that was it! thanks a ton

[grizzled bolt]

Great resources, thanks for the links ^^

[weary dust]

Anybody has worked on Shaders for Custom Render Textures?

i just want to know if the Shader would allow me to tell the Render Texture just to capture 1 fragment of the screen

now seems there's no way of doing that with a rergular Render Texture and reading the docs i came across this Custom Render Texture that accepts shaders

[meager pelican]

Copy?
See https://docs.unity3d.com/2018.3/Documentation/ScriptReference/Graphics.Blit.html
and the offset and scale params

[weary dust]

Oh,thanks ill give a read tothat

[weary dust]

sorrry but isnt this exactly the opposite of what I'm trying to achieve? I want to bring a portion of the renderview to a texture, but this seems to do the opposite? or am i missing something?

[tacit parcel]

You can play around with camera matrix
https://docs.unity3d.com/ScriptReference/Camera-projectionMatrix.html

[weary dust]

Thank you ill take a look to that too. Okay this looks promising

🙏

[livid pond]

when we define 2D Texture properties with any name like _MainTex

we need to define _MainText_ST for tiling information i guess

what does ST stand for ?

[regal stag]

Scale & Translate, If I'm not mistaken

[livid pond]

oh translate

that makes sense

thanks

[weary dust]

this was the result of playing with the camera matrix 🤣

it was a good attempt but seems the projection change distorsions the buildings

i dont understand why happen my camera is orthographic...

GREAT

changed the matrix to ortthographic