archived-shaders

[neat gull]

Im not comfortable redistributing assets I didnt create

[swift loom]

Hi, I'm having some issues creating a pixel art light shader. I've been kinda frankensteining this together with approaches I've found around the internet, and it works mostly. It's supposed to be a flat color light with the amount of gradients limited by _Shades, which works, but only as long as a color channel is 0 or 1, anything in between causes color bleed in the middle and additional shades become visible.

I'm not entirely sure where the issue is now, whether it's my code or some mode or something causing behavior that I'm unaware of.

https://pastebin.com/hwhxCXca

Basically on the left is the behavior im looking for, and the shades are correct there at least, if a bit lopsided size wise

[hot mortar]

Hey all, I made this little shader tutorial on how to make a Vertex shader for Sprites
feedback would be awesome
https://www.youtube.com/watch?v=L6Qm5WlNczY

[soft mauve]

does anyone know how i can squish this upwards

like the gradient cuts off higher, but keeps the same amount of blending into black

[amber saffron]

How is this gradient made ?

[low lichen]

Going to need to see more of the graph, you're just showing a multiply node and none of the inputs

[soft mauve]

its basically getting the top normal

but the gradient is translating down half the object i wanna scale that down

[amber saffron]

You could use a remap node

[soft mauve]

wait i dont even need that lerp there

[amber saffron]

The normal.y value ranges from -1 to 1 . So use remap with in -1;1, and change the output value to your need

[low lichen]

Would that not scale the gradient too? I guess there's no way not to scale the gradient here unless you're okay with the top not being full 1 like it is now.

Just a simple subtract basically

[soft mauve]

i like the full 1

the remap seems to be somewhat near

but diminishes the strength

[low lichen]

What do you mean by this exactly?

but keeps the same amount of blending into black
I read this as you want to keep the gradient the same "length"

[soft mauve]

so i want the gradient so imagine white is 1 and black is 0

i want it to go from 1 -> 0

not from 0.5 -> 0

[low lichen]

Oh, black on the bottom and white on the top with the gradient in the middle?

[soft mauve]

quickly did this

just in gimp

sry am bad at explaining

[amber saffron]

Remap will dot.

Ex : remap normal.y from -1;1 to -4;1

[soft mauve]

when im using remap it fades the strength

[amber saffron]

That's because you've already modified the normal value

you're multiplying it with "flatcutoff"

[soft mauve]

ahh

now its working

i dont understand how it works though

[amber saffron]

Remap allows you to change a value based on an in and out range.
Imaging having a point (your value) on a rubber band, and you squash/stretch it

[soft mauve]

ahhh

that's sick

super handy

now im getting a purple bottom though

in a lerp node later on

but if i make the bottom colour that is being lerped white the purple goes away

[amber saffron]

Please provide a screenshot with more nodes

[amber saffron]

Isn't it because you're using top color green and bottom color purple ?

[fathom narwhal]

searching how make an wind shader with urp to make async waving low poly trees for dummys :/

[soft mauve]

no the bottom colour is grey

[amber saffron]

My bad, I've looked to fast.
You should add a "saturate" node after the smoothstep I think

[soft mauve]

no your completely fine

[amber saffron]

Else you're sending value out of the 0;1 range to the lerp

And so, it will extrapolate the values of the two colors

[soft mauve]

i also tried the saturate node and it made no effect

if i get the lerp showing too

does this help?

[amber saffron]

not saturation, saturate

it's different

[soft mauve]

i tried that one too

[amber saffron]

you might also want to sature the T value before the input in the second lerp

as it's the same issue with extrapolation

[soft mauve]

like this?

[amber saffron]

I said the T input

[soft mauve]

yes you did

ill fix sry

that is what fixed it

why did that fix it though

[amber saffron]

Like I said earlier : the value for the T inpout was out of the 0;1 range, leading in extrapolated values for the lerp output.
Saturate is basically a shortcut for Clamp node, with 0 and 1 range

[soft mauve]

ahhh

that makes sense

thx for all the help

[warm shale]

Anyone have any suggestions on how to handle emissive values on models where you independently want to adjust the emissiveness of each thing? IE: Multiple lights on a car, or an electronics device. Would shadergraph be appropriate for that? Maybe using a mask for each section and toggling them on/off, or would that be overkill?

[shadow locust]

different materials for each of those places

which you can achieve by having submeshes

1 material per submesh on the MeshRenderer

that would be the "standard" way of doing it - I guess you could use different UV "zones" and a custom shader if you want

or yeah a mask texture on a custom shader

[warm shale]

That's what I usually do but having one material per independent emission section seems inefficient

[shadow locust]

could definitely do it in shdergraph with a mask texture

I would probably still use 1 separate material for all the lights

like 1 material for the car body, one for the lights

[warm shale]

I'm testing now a mask image, with each color for an emission zone, then just specifying the colors that are active to turn them on/off, going to see how it goes

What benefit does separating out the lights have ?

Would there be a performance hit doing this in one material?

[shadow locust]

just makes your shaders less overloaded

technically it might be faster as all one material - but your single shader could end up being really complicated to write and maintain

so from a developer sanity point of view I would have "lights" be one material

like you would basically have a big if/else branch in your shader basiaclly saying "if this part of the car is part of the body, do this, otherwise treat it like a light"

that kind of branching is kinda no good for shader performance too

[warm shale]

Ya, I'm trying to figure out a way to do it with a single mask image, and passing in colors that are active and doing it efficiently without a bunch of branches

Kind of like bitmasking

[shadow locust]

yeah - it's definitely doable

just a bunch of extra lighting multiplications for those sections - which if the value from the mask texture is 0, they do nothing

shaders are happy with that kind of thing

[warm shale]

Ultimately it should end up with an emissive black and white node that gets pumped into the emissive slot, that is dynamic based upon the mask image * the current active colors

The problem is getting that emissive texture without a bunch of branches

I'm thinking I might have to write a custom node

[grand jolt]

I'm using Amplify for my shaders and I am sure this issue still stands regardless, my Depth Fade node just doesnt seem to work with an orthographic camera

It works just fine in perspective

This is what it looks like in perspective

https://i.imgur.com/EGO8fSL.png

wait..

what the hell

[regal stag]

Is there a setting on it to stop it converting to a linear depth?

[grand jolt]

its working in game view now

i swear to god im retarded 😦

I dont understand

I just spent like 30 minutes messing with stuff and its randomly working

[inland carbon]

someone has idea how to get custom lighting working in hdrp

i geting this error : unrecognized identifier 'Light'

[midnight spade]

Hey guys, anyone have a solution for using height maps in shader graph?

[woeful geyser]

Does alpha clipping improve performance? As I understand clipped pixels are not passed to fragment shader

[woeful geyser]

Another question. Is there way to force a particular mesh to have priority in z-fighting with others? I draw a cube over others and don't want to make it bigger at any way

[grand jolt]

Dumb question

what is it called when a player or object creates distortions or trails in a water shader?

There's a term for it

Ripples

that's the term

fug.

Do people typically handle ripples for a water shader using render targets?

[thick fulcrum]

yes is the short answer, unless it's just one interaction (e.g. just affects player). then you could just pass over a coordinate, depends on end goal etc.

[weary dust]

i have a general question about this shader:

Right now we are using the alpha channel in order to control if the shader shows the texture or shows the color...
But we would like a version of it that allow us to control the Color of the model and also the Alpha...
In a way that we can fade from no color showing texture to colorized not showing texture.
And also fade alpha

I guess we would need to create a new property for Alpha, but what about the current treatment of the _Color ?

would this shader require major changes? would this have an impact on performance?

just need to know those 2 things. Thanks a lot

[hard lichen]

Question: is it possible for a texture shader to draw pixel past the texture size? ie: for an outline shader

[thick fulcrum]

depends on situation, if your using a texture atlas / sprite sheet then the answer is no
otherwise I believe it's possible, there was some discussion on this prior which a search should yield

[hard lichen]

thank you

[strange prairie]

I mean it's quite a small shader, no? Adding an extra float property for transparency would hardly be a big change. A transparent shader is much worse for performance than opaque though.

[weary dust]

and how dtoes that affect? i mean, it becoomes heavy just when youre using that transparency property?

or all the time?

lets say i have 16000 objects with that shade

but im just using the transparency property on a few

at some points

would the performance become worse either i use the property on all or not?

[strange prairie]

Then the renderer treats all of them as transparent which means it also renders pixels that are behind it

But you could add a boolean (checkbox) that will compile two different versions of the shader to prevent that

[weary dust]

the renderer treats them all transparent evenn if i keep the Alpha to 0 ?

[strange prairie]

Yes

[weary dust]

okay thats good to know

but with an option i could avoid that

interesting

[strange prairie]

I'm not sure how you'd add a checkbox, but I know the Standard shader does a lot of that

[weary dust]

this is for mobile

so i have to take performance intoo account

just one more thing... the Color thing... it would be easy to change the way it Colors objects?

as you see we are using the alpha parameter of the _COlor property

alpha 0 uses texture, alpha 1 uses the Color property

would it be possible to keep that like it is?

or if we want to add this Alpha property we should change the way that works?

[strange prairie]

Yeah, alpha doesn't have to be transparency. You're using it as both right now but you don't have to.

[weary dust]

no no, currently we dont use transparency

that shader cannot

[glossy matrix]

Would it be possible to create a shader graph shader that's a dot on the screen and is a constant size (on screen) regardless of distance?

Just needed to know if it's feasible with only shader graph and no writing custom shaders

[desert orbit]

URP has a screen node, but you can always forward this information.

[low lichen]

The pixel shader will only run on the pixels the mesh occupies on screen. There's no way to specify a pixel you want to draw on in a shader.

If you want to draw on some pixel, you will have to make sure the mesh is behind it. Usually for outlines, you would do that by drawing the mesh a second time but extending the vertices out so they occupy more space.

[weary dust]

Is it possible to disable the transparency feature of Shader that allows transparency in runtime?

I have a lots of objects but just want to make transparent a few at the same time. It would be performance wasting if the shader is making them all render the objects beneath

so i wonder if theres any way i enable/disable transparency before and after using it

or for this purpose i need 2 different materials ?

[desert orbit]

I think you have to swap materials.

[low lichen]

It is possible if the shader uses properties to control blending and if you change the queue, but this is very manual and different for every shader. This is how the Standard shader changes to transparent within in the same shader

It's easier to just change the material like Fogsight said.

[weary dust]

okay thanks guys

[low lichen]

The Standard shader also needs certain keywords enabled and disabled depending on the transparency mode

[glossy matrix]

Thx

[low lichen]

And no simple way to change them without doing it manually

[desert orbit]

Transparent shaders do not cast shadows properly, by default, I think. So would have to be replaced anyway.

[weary dust]

its what i was doing, but i was just wondering if i could make it easier

thanks 👍

[strange prairie]

They do in the HDRP

[grand jolt]

Anyone know an online library of shaders that include URP shaders?

[swift loom]

So I'm running a base pass on a sprite which tints it with a color, then I run an additive light pass afterwards. But if I understand correctly, the _MainTex gets directly altered in the base pass does it not? If so, is there any easy way of sampling the original unaltered texture?

[swift loom]

actually think i figured it out, i was just altering the color in the vertex shader and it got passed all the way through 😛

[wheat quail]

So when I was doing some grass shader tutorials there was something in the code called SV_Target that supposed to correct this (?). Writing shader code is a bit above my head though. Is there something I can do in shadergraph to correct the dark spots?

[sharp verge]

Just wondering - I'm using quite a few noise nodes in my shaders, would it be more performance friendly to replace them with a baked noise texture?

Eg. A RGB texture with some baked perlin noise in each channel

[wheat quail]

figured it out... used an unlit shader and used a calculate lights subgraph io previously made.

[simple violet]

I made a material with a unity shader and I want to change the offset value via script

problem is I don't know how to access the offset value of the shaer

anyone know what I should use?

material.setvector?

hello?

is my question not worded correctly?

[vocal narwhal]

propertyBlock.SetVector("_BaseMap_ST", new Vector4(0.5f, 0.5f, 0.25f, 0.25f));

see https://docs.unity3d.com/Manual/SL-PropertiesInPrograms.html Special Texture properties - Texture tiling & offset

[simple violet]

apparently materail.SetTextureOffset works too

[vocal narwhal]

probably easier. Mine's the only option if you're using MaterialPropertyBlocks

[eager sphinx]

No matter what we tried on this rain shader it wont work ssr multi reflection probes it wont even reflect back any light too if anyone knows a fix please help

Stupid hdrp mess it is

[full ravine]

How can I make an object fade away and never come back?

[neon gull]

Has anyone here ever worked with the editor camera's depth and can help me out? I am trying to get the editor camera to render it's depth texture and access it, however I am not quite sure if that is possible given that the camera resets its settings before rendering

[viral knoll]

Kill it

[lavish stream]

does unity have something like UE4's shader complexity viewmode? i'm trying to find some metric to compare the performance cost of my shadergraph shaders

currently the only solution i've found online is compiling the shadercode then running it through a 3rd party program called Mali

my guess is unity must have some way to compare individual shader costs right?

[full sail]

Is it possible to use a custom shader with the tileMap renderer to loop the map? I'm stumped on how to achieve the effect I want.

[toxic flume]

I want something like it, halo 3, animated electricity/lightning effect

Should I use an electricity texture and distort it?

[crimson slate]

how can i make it so that the planes look like leaves?

i am using a leaf texture but it the planes just show green

[vocal narwhal]

change the rendering mode to cutout

[crimson slate]

thanks i figured out u can use leaf shader

[cerulean flare]

Anyone know why my fresnel normals aren't being mirrored? I've been stuck on this for a couple months and can't figure out the issue

https://i.gyazo.com/d0c3e6c768c21a79eb5c9af0a36fc18c.png

[worldly shard]

i have a question

is it better to use visual scripting for shader

or use shader language

which one is easy to detect errors and debug

[wheat spire]

Moving here cause I think my issue is a shader issue..

Trying to figure out why my is basically culling front faces even though I have Cull Off in subshader settings.

[vocal narwhal]

link to the shader, or just make a double sided cone

[wheat spire]

Ok so on this cone.. it shows correctly

but this one has inverted normals, tf

[thick fulcrum]

you could try something procedural, but you will probably have more control with a pre-defined texture
shadertoy can be a good source of ideas https://www.shadertoy.com/view/ldlXRS

[toxic flume]

@thick fulcrum thanks, yes shadertoy is awesome but I do not know why I can not find it, my search word
I had searched lightning and electricity not electric
They need to change search functionality, really bad

One question, sampling from noise texture is better than computing a noise, for example simple noise (sin,frac,dot)?

[thick fulcrum]

I agree, I just did another search and got different results to what google dropped me into
seems there's a tag search feature, so tag=electric in the search box gave different results perhaps better

[toxic flume]

Yes, it is only a tag search and name

[thick fulcrum]

depends on situation when it comes to sampling noise, if you are constantly changing (random) or computing it once. if the latter it's probably better to just use a pre-computed texture as the noise.

I liked this example too, perhaps better for "forcefields" https://www.shadertoy.com/view/3tdcW4

[toxic flume]

for(float i=0.;i<2600.;i+=13.)

I want to use it on mobile devices

[thick fulcrum]

ah 🤔 for mobile it might be lightest to use an animated texture / spritesheet type of affair.
OR
get VERY creative with code implementation, must be someway to fudge it on mobile by pre-computing sections but I would not know where to begin 😆

[high kiln]

does anyone know where this flickering is coming from? it seems to affect only the outermost raw image UI container.

I think it occured after upgrading from 2020.1.x to the most recent version of unity.

[tepid galleon]

can someone help me make a shader that inverts the red, green, and/or blue colors of a sprite?

[naive mural]

@tepid galleon i think you can just do (float3(1, 1, 1) - color.xyz) in the shader.

[tepid galleon]

how do I put parameters

so i can choose which color to invert and when in code

[regal stag]

If you want to be able to control which can be inverted can do something like this :

// in Properties :
_Invert ("Invert? (0 = no, 1 = yes)", Vector) = (0,0,0,0)
...
float3 result = abs(_Invert - color).xyz;

[fresh vigil]

Hi, I have two cameras, first one only renders a specific layer, the second renders the whole game except the camera layer that 1st camera renders. The first one renders first and I copy its _CameraDepthTexture to another custom ID. I'm reconstructing the world positions from depth buffer when 2nd camera renders, using its own depth texture, and the one I previously copied to a custom ID. Thing is, while the world pos from the 2nd camera appears to be okay, there's some weird issue when reconstructing the pos from the first camera depth. (screenshots on the way)

that's visualizing X position , the 1st one is the first camera

Needless to say, both cameras have the same projection settings and have the same position/rotation.

Been banging my head trying to look for smthing that I might have done wrong, but unless it's something related to some obscure rendertexture settings, i have no idea what the problem might be

[regal stag]

Yeah, might be the render texture format. There's a RenderTextureFormat.Depth format, could try that.

[fresh vigil]

Thanks, I'll play around with some of the RT settings again 🙂

[alpine goblet]

rly noob question but in urp can you code a shader and use the shader graph at the same time?

[regal stag]

If you're referring to working with both with separate shaders, then yes. They're different files, .shadergraph vs .shader. You can't open shader code as a graph though.

You can generate code from a graph but it'll then be a code file which is saved separately (and editing it won't make changes to the graph).

[alpine goblet]

Thanks, is the node system as capable or has the same features as coding the shader?

[regal stag]

There are some features only available in coding. e.g. Tessellation isn't in shadergraph yet. Can't access ZTest or Stencil operations. But for beginners, shader graph can be a lot easier to work with.

[alpine goblet]

thing is im trying to achieve something in shader graph and im having some problems and i found a shader script with everything done so im kinda tempted to switch

on the other hand there are so many tutorials just for shader graph

[regal stag]

Something to bear in mind is that if the shader code isn't specifically written for URP it likely won't work. There's a chance it'll work if it's unlit, but if it's a surface shader it definitely won't work.

Unless you switch to the pipeline that code is intended for that is, which will likely be the built-in RP.

[alpine goblet]

well looks like im sticking with shader graph thanks

[alpine goblet]

Another dumb question, what does Vector4.zw mean?

[regal stag]

Would be obtaining the 3rd and 4th components of the Vector4 and converting it to a Vector2.
The components can be labelled as x, y, z, w or r, g, b, a.

[alpine goblet]

makes sense, thanks alot.

[cinder chasm]

I'm getting an error regarding GraphicsFences NotSupportedException: Cannot determine if this GraphicsFence has passed as this platform has not implemented GraphicsFences.

SystemInfo.supportsGraphicFence is returning true. Anyone know why GraphicsFence.Passed is throwing this error if its supposedly supported?

Unsure of where this question fits tbh

[alpine goblet]

could someone tell me what TextureGrad() does?

[still carbon]

It gives you direct control over how the sampling thinks the pixel coverage of the sampled fragment is going to be. Giving control over things like anisotropy and mips or create special sampling effects. It has very niche uses. There's a good breakdown here <https://stackoverflow.com/a/52977548"

[still carbon]

they both have their pros and cons. Visual programming of shaders is really helpful since you see the result immediately in the graph though and you're not going to make syntax mistakes with extremely vague error messages that often don't help. But you sacrifice some finer control and shader features or possible avenues of optimization.

[alpine goblet]

thank you, there isn´t anything close in shader graph right? im gonna try and do a custom node with TextureGrad()

[still carbon]

yeah custom node should work

you could also use https://docs.unity3d.com/Packages/com.unity.shadergraph@6.9/manual/Sample-Texture-2D-LOD-Node.html for something similar that doesn't require messing with derivatives @alpine goblet

[alpine goblet]

im hoping so

[alpine goblet]

thanks il check it out

[regal stag]

If you use a custom function node, I recommend using SAMPLE_TEXTURE2D_GRAD(textureName, samplerName, coord2, dpdx, dpdy) in it, as that's the method SRPs will expect.

[alpine goblet]

Thanks will do

[alpine goblet]

Can i manually write the abstract method or do i need to do it with a hotkey? i know its a dumb question but im having some weird errors and this is all i could think about

[regal stag]

Unsure what you are referring to, perhaps show the error messages.

[alpine goblet]

idk if im not using some directive, but things like "Slots" and "Bindings" should be correct

the code just incase

[regal stag]

Ah, you're using the C# CodeFunctionNode which is outdated. The up-to-date method of using custom functions is to use the Custom Function node directly in the graph. https://docs.unity3d.com/Packages/com.unity.shadergraph@8.3/manual/Custom-Function-Node.html
or for v10+ : https://docs.unity3d.com/Packages/com.unity.shadergraph@11.0/manual/Custom-Function-Node.html

[alpine goblet]

thanks again 🥲

That´s actually super cool too

[alpine goblet]

im sorry for being so annoying but on textureName is it a string ? (if it is strings arent available as inputs) or is it an actual texture?

[regal stag]

It's a Texture2D object. There's no such thing as strings in shaders afaik.

Easiest to send it in through an input, probably same for sampler (SamplerState)

[alpine goblet]

I see thanks

[feral inlet]

Hi. I was using Vector 1s as indexes for my T2DA arrays in shadergraph. Am I supposed to do this? Do you change the vec 1s with this function? (SetInt)

[neon gull]

does anybody know whether there are specific unsupported features in terms of compute shaders (in Unity) when it comes to nvidia or amd?

I am working on an editor tool that modifies the positions of vertices using compute and it works fine on a wide variety of nvidia GPUs, however lots of vertex positions are off on AMD Gpus

Maybe someone stumbled upon something similar in the past

[alpine goblet]

is there any macro that works with this inputs? ive tried texture and tex_Sample/tex.Sample but none worked

[regal stag]

I think it's sampling the texture right? (Not that familiar with glsl)
SRPs tend to use the macro SAMPLE_TEXTURE2D(texture, sampler, uv);

[alpine goblet]

there it is, thanks alot Cyan.

[still carbon]

SetFloat() would be for vector1 but SetInt should work too, if it's working fine then it's fine 🙂

[still carbon]

@grand jolt just do hit_pos = float2(0,0); in the first line, so that an output is guaranteed, as out implies a value will always be assigned

[wet lance]

I am trying to follow this but I am new to shaders so I need some help

https://mispy.me/unity-alpha-blending-overlap/

I try to make a material to put the shader on but I can only make 3d materials

Also I tried going with the 3d material anyways and it did not work

[wet lance]

Nevermind I got it working!

[night mica]

Does anyone know what the 'Texel Size' shader graph maps to? I'm trying to use it get the texture width to sample a data buffer baked as a texture.... but once I pull the 'Texel Size' node into a node tree I can no longer connect it to the vertex position (ie. like using sample texture 2d instead of sample texture 2d LOD).

[regal stag]

Hmm, not sure why it's limited to fragment only. Might be able to obtain it in a Custom Function node, would be the texture's reference + "_TexelSize". (.x is 1/width, .y is 1/height, .z is width, .w is height)
Alternatively, send it in yourself through a property.

[night mica]

Hm... weird. works fine in HLSL.

¯_(ツ)_/¯

Oh well, I'll just manually set it as a property.

[shell thorn]

sup!
I've made a nebula shader but have some problems with implementation of star flare\glow they now looks more like blurred dots

Any Idea how to make flares?

like this one

[low lichen]

Is this just an exercise in writing shaders or do you plan on using this shader in a game?

Because it sounds expensive, compared to a cubemap texture

[shell thorn]

In a game, but basically it will be only one Super shader for background so I don't care about performance and yes its 2d shader

[low lichen]

Writing procedural one-pass shaders like this often requires a lot of math. To get flares like that, you'd probably be using sin and cos to make the ring.

I suppose you could also sample a flare texture

But do you want it to be hardcoded where these things are?

[shell thorn]

for a circles isn't a problem, already tried to sample texture but with no luck, those flares must be ununiform distributed so with sampling I have no idea how to achieve random distribution.

[low lichen]

Make a random function and use the index of the flare as the seed

[shell thorn]

I suppose to reuse one flare by using a noise and generally I wanna make a flare inside a shader

[icy osprey]

im trying to make a simple Holosight shader in shadergraph, can someone help me figure out how to make it so that if the sight is not behind its object its invisible (the green part should be invisible)

[low lichen]

This requires stencils, which Shader Graph doesn't expose properties for.

[icy osprey]

so i just have to write the shader?

[low lichen]

These look like two very simple shaders

You can just duplicate an unlit shader and add the stencil part to it

[regal stag]

If you want it to only appear in the quad, you could move the sight texture inside the quad instead of moving a separate quad/object. That way, it won't render the part outside the quad bounds.

[low lichen]

That would lose the 3D effect. The crosshairs are meant to be a few meters in front of the scope.

You could do some kind of parallax effect in one shader

But that's probably more expensive than using stencils

This shader should work as the stencil write shader. That would be the shader on the invisible quad.
https://gist.github.com/ewandennis/ff0f12da482a0aff55486290c00c5e9e

I don't think you need to modify it to make it work in URP

[regal stag]

Should work fine, unless you want SRP batcher support

[icy osprey]

thanks, will check it out

[regal stag]

You'll also need a shader on the crosshair that has a stencil pass like

Stencil {
    Ref[_StencilMask]
    Comp Equal
}

[icy osprey]

thanks

i have no idea about writing shaders, so ill read some stuff

no idea what are you saying tbh

is there a way i can incorporate these written shaders into the shadergraph?

[knotty juniper]

there is a code node but that can only be parts of a shader

[regal stag]

You'd have to generate code from the graph to add stuff like Stencils. There's an option to view the generated code if you right-click the Master node (or if you're in v10+ it's in the Inspector when you click the .shadergraph file). You can then save the generated shader in your assets, edit it, and swap it out on the material.

There is an alternative if you want to continue using graphs. It's possible to override stencil values using the RenderObjects feature on the Forward Renderer asset. But it's a bit awkward with singular objects, as it filters per-layer.

[buoyant eagle]

Hello, I made a shader using shadergraph which uses function replacecolor() for changing all my pixels from one color to another, It was working fine, But then I saved and closed proyect, and when I reopened now all my textures look black, Anyone knows why this bug happens? I have no Idea on what could I do, bc the shader is still the same, but it does not change the color anymore, and everything looks black, all my sprites without the material look good, but the material with that shader now looks black

[lavish sierra]

@buoyant eagle does it just look black in Shadergraph, or in the game?

[icy osprey]

I found a shader that does the thing without using stencils

im trying to understand how it works so i can recreate it in shadergraph

[merry rose]

Hello, Today I got onto a quest of making URP Terrain Grass better for my needs, I already fixed few color issues and now moved onto putting a ShadowCaster pass into it. I "successfully" implemented it but only on objects that are not spawned through terrain details, so Grass still does not cast any shadows, Is there a way to enable it? It seems like it skips ShadowCasterPass completely when painted on terrain. (It's been already like 12 years... https://blogs.unity3d.com/2008/04/14/terrain-lighting-shadows-and-the-road-towards-it/)

[regal stag]

It uses parallax (basically, offsetting the uv coordinates based on the tangent space view direction), MentallyStable briefly mentioned it above but thought it might be more expensive than the stencil approach. It should be possible in shader graph at least though.

A lot of the shader is just the "setup" involved for converting the View Direction into Tangent Space. Luckily, shader graph can do that for you using the Space dropdown on the node.
(They also seem to be adding the normal to the view direction before that though? Not sure I really understand that. Maybe you'd have to do that too (in World? space). Can then use Transform node to convert from World to Tangent. Not sure, hope this gives some hint of what to look into.

[icy osprey]

thanks, ill be working on that

i have a very vague idea on what im doing lol

[regal stag]

@icy osprey Might be a bit different from the shader you found, but I've used this sort of thing for parallax effects before, if it helps

[icy osprey]

thanks, will try this out

[wet lance]

So I have the following shader code which makes it so the shadows in my game don't have additive blending

    Properties{
        _MainTex("Base (RGB)", 2D) = "white" {}
    }

    SubShader{
        Tags { "Queue" = "Transparent" }

        Pass {
            Stencil {
                Ref 2
                Comp NotEqual
                Pass Replace
            }

            Blend SrcAlpha OneMinusSrcAlpha

            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #include "UnityCG.cginc"

            uniform sampler2D _MainTex;

            struct v2f {
                half4 pos : POSITION;
                half2 uv : TEXCOORD0;
            };

            v2f vert(appdata_img v) {
                v2f o;
                o.pos = UnityObjectToClipPos(v.vertex);
                half2 uv = MultiplyUV(UNITY_MATRIX_TEXTURE0, v.texcoord);
                o.uv = uv;
                return o;
            }

            half4 frag(v2f i) : COLOR{
                half4 color = tex2D(_MainTex, i.uv);
                if (color.a == 0.0)
                    discard;
                return color;
            }
            ENDCG
        }
    }

        Fallback off
}```

Essentially it makes shadows look like this:https://cdn.discordapp.com/attachments/497872424281440267/810332202738122832/unknown.png

NOT this: https://cdn.discordapp.com/attachments/497872424281440267/810331963851931686/unknown.png

But now I am getting problems where the player's shadow goes through walls like this

And it is also messing with the cursor

Anyone know how I could fix this?

[still carbon]

below the Blend line, add ZWrite off
right now it's writing to depth buffer which then clips rendering of other stuff that's s on the same plane or behind

[wet lance]

Thanks so much that worked!

[twin swallow]

https://medium.com/@jannik_boysen/procedural-skybox-shader-137f6b0cb77c
I've been following this skybox shader guide and I can't figure out where I went wrong, or if there's a setting somewhere I need to change.

[alpine goblet]

do you have rg in the uv of the texture?

hey guys any tips on optimizing a shader in urp? ive done alot of stuff and when i look at the sky for example i hit 300 fps but when i look at my plane with the texture i go to about 50 fps

[twin swallow]

yeah. I used the above as a subgraph here:

[alpine goblet]

no idea then i tried double checking but i think you have everything correct

you have saved the shader right?

lmao i randomly found cyan blog, it has so much cool stuff

[twin swallow]

yeah its saved 😛

[grand jolt]

How to enable high quality in your game

[grand jolt]

oh this is the channel

https://www.youtube.com/watch?v=IC9g5hlfV6o

will this work on mobile ios / android

?

[low lichen]

@grand jolt Yes

[grand jolt]

How do I?

[low lichen]

I don't know, how do you?

[grand jolt]

You said yes

So explain

[low lichen]

@grand jolt It's no different from doing it the way they're showing you in the tutorial

[grand jolt]

he says unity 2019.1.2 +

and setup for lightweight render pipeline

how do i set it up?

[low lichen]

Do you want me to watch the tutorial and update the instructions in it for the latest version of URP?

[grand jolt]

idk if u want?

he says in the beggining to set up that so idk how

he doesnt show how to set it up

[low lichen]

Do you not have URP set up in your project?

[grand jolt]

idk i just started a new one

[low lichen]

Did you use the URP template?

[grand jolt]

how do I?

[low lichen]

You have to choose a template when you create a new project

The default is called "3D", which doesn't use URP

[grand jolt]

damn do I have to start new one

ok

[low lichen]

There's another template called Universal Render Pipeline, which uses URP

You can setup URP in an existing project too

[grand jolt]

is it lightweight then?

[low lichen]

Lightweight was renamed to Universal a while ago

[grand jolt]

oh

i see

its confusing

[low lichen]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@7.1/manual/InstallURPIntoAProject.html

[grand jolt]

ok i will try this thanks

Should I install newest version or the one that it recommends me?

Of URP

cuz i got 2019.4.16f1 and not 2020.x

[low lichen]

@grand jolt The only reason you might not want to install the newest version is if you're worried about it being unstable

But I don't have reason to believe that it is

[grand jolt]

ok

i got it

and somehow changed all materials while keeping the texture on it

like thousands of mats

using google 3d exporter xd

[twilit geyser]

Does anybody know why the edges on the texture are lit that much? The material has smoothness set to 1, which gives that strong reflection of the light in the big blob, but I would like not to have it on the edges?

[low lichen]

What textures do you have on the material? Looks like maybe a normal map. Is there a metallic/specular map?

[twilit geyser]

@low lichen In this example I've no maps at all except the albedo and alpha albedo.

The smoothness has a float value

[low lichen]

What shader is this?

[twilit geyser]

HD Decal

I also tried different compression settings and other import settings, because I was thinking that it might be quality related, but it didn't change much.

[low lichen]

I'm guessing somehow the alpha is reducing the smoothness, which makes it more diffuse

So the specular highlight is bigger and more diffuse on the edges

[twilit geyser]

Hm, I guess the edge actually might have half values in the alpha because of lack of quality

[low lichen]

Doesn't HDRP have debug views to preview specularity and such?

[twilit geyser]

Actually, I don't have a map for albedo either, just setting a color there. Just using the texture I have for the albedo alpha

I have very little experience in HDRP, I don't know

Okay, I found it, but I'm not sure what to do with the information 😄

[low lichen]

Can you post what it looks like?

[low lichen]

I'm surprised there isn't any debug view to just see the different GBuffers of the deferred rendering

One of those should be specularity/smoothness

But thinking about it, I think the alpha must be affecting the specularity of the scene

It's blending between the highly specular decal to the less specular wood below it

[twilit geyser]

This?

[low lichen]

Ah yes

And yeah, you can see the edges are blurry

Meaning it's blending between the smooth black decal and the bright rough wood

What does it look like if you make the wood highly specular too?

I'd expect the edges to no longer be brighter

This doesn't fix your problem, just more to confirm the issue

[twilit geyser]

Let me check

Looks like what you said:

[low lichen]

Okay, then this kinda seems like an oversight or limitation in deferred rendering. It doesn't like transparent things I guess.

One fix would be to minimize the alpha gradient on the edges

To make it a more defined edge

[twilit geyser]

That will be tough, because I think the "gradient" comes from quality loss during compression. This is an 8k Flipbook actually and details get small since it's 64 frames

I could try to increase the contrast inside the shader maybe?

[low lichen]

Modify the shader you mean?

[twilit geyser]

Yeah, it's a custom shader

[low lichen]

Oh, I've been looking at the HDRP/Decal shader

[twilit geyser]

I've used that as a template, actually using ASE here

[low lichen]

You can change it to use alpha clip instead of transparency

Or both I guess?

[twilit geyser]

Don't mind the normal map stuff

[low lichen]

Is it transparent in the middle too? To show the wall behind it?

[twilit geyser]

What do you mean in the middle?

[low lichen]

Not the edges. Is it slightly transparent overall?

[twilit geyser]

No, the transparency comes from the shader, but the actual texture doesn't have alpha

[low lichen]

You can add a Step node right before plugging in the Albedo Alpha

But you then have to multiply that with the overall alpha value you want

Because Step will make it jump either 0 or 1

[twilit geyser]

I tried that earlier, but it didn't work. Maybe I made a mistake, I'll try it again.

[grand jolt]

ok i tried it

but it doesnt look anywhere like his

mine ^

his ^

[low lichen]

@grand jolt You followed the tutorial and remade the shader?

[grand jolt]

i did like all same

ye

[twilit geyser]

@low lichen Ah, I forgot to multiply my MAOS Opacity with it, it's working now.

Looks pretty much solved now, thanks a bunch!

[grand jolt]

I got until minute 10:40

but it doesnt look as snowy as his

[low lichen]

Have you tried changing the Snow Opacity property?

[grand jolt]

at 1

and his is at 0.5 btw

🤔

im gonna go through it again maybe i missed a step

anyway to have the shader graph window better..? like when i doubleclick to open it it opens in a small window where scene view is

I'd like it to be seperate window each time i reopen it

also what i noticed

his simple noise looks different

vs mine as a circle

[low lichen]

I think that's just a change in Shader Graph. It's the same data, just projected on a sphere

Have you tried increasing SnowOpacity to higher than 1?

[grand jolt]

2.2

seems better?

but why does his work at 0.5

[low lichen]

Are you sure it was set to 0.5 in that screenshot from the video?

[grand jolt]

yes he just switched to that shader on his materials

so its default values 0100 and 0.5 opacity

[low lichen]

I think the noise is kinda unnecessary

I'd rather use a snow texture that has some noise in it

More control that way

The generated noise is very high frequency, a different random value for every pixel.

[grand jolt]

welp idk how i would do it xD

I hoped it would look like in his video but it just does not

I will check everything again from start

[low lichen]

To replace the noise with a texture, remove all these noise related nodes.

[grand jolt]

it looks so bad on mine idk why

maybe they changed something in unity

[low lichen]

Replace the Add node with a Lerp node, plug the Base Sample Texture node into the A port and plug this node into the T port, remove the other Multiply node.

Then add another Sample Texture 2D node for the snow texture and plug that into the B port of the Lerp.

[grand jolt]

oh god ok

thx

I'll try

[twilit geyser]

@low lichen Your idea worked well, however I have another problem right now. Some parts of the reflection are flickering. Any idea? (view in full screen)

[low lichen]

@twilit geyser What threshold are you using in the Step? Any difference if you change that around?

[twilit geyser]

No, the step value doesn't make a difference

[low lichen]

What does the roughness GBuffer debug view look like now?

I assume this must be some weirdness with HDRP's temporal anti aliasing, since the camera isn't moving at all

[alpine goblet]

hey guys any tips on optimizing a shader in urp? ive done alot of stuff and when i look at the sky for example i hit 300 fps but when i look at my plane with the texture i go to about 50 fps

[twilit geyser]

@low lichen The shape is perfectly black. I would assume there would be white spots flickering as well, if that was the problem, right?

[low lichen]

At least something. You're sure this wasn't there before? It goes away as soon as you bypass the Step node?

[twilit geyser]

Oh no, I think it was there before as well

[low lichen]

Oh okay

[twilit geyser]

Some general HDRP setting?

[low lichen]

If you make the wood specular again, does it appear to have the same flickering?

[twilit geyser]

Yeah it does

[low lichen]

Then yeah, it sounds like some general HDRP thing

[twilit geyser]

Hm, I have the default HDRP settings from the HDRP sample that's always setup at the beginning of the project

[low lichen]

How far can you reduce smoothness before it's no longer as shiny as you want it?

I assume lower smoothness is going to reduce this aliasing

[twilit geyser]

It stops around 0.65 smoothness, which is a totally different look

[low lichen]

What anti aliasing settings are default in HDRP?

[twilit geyser]

Where do I find those?

[low lichen]

Probably in one of the HDRP assets

[twilit geyser]

@low lichen It was on the camera settings and it's set to "Temporal Anti-Aliasing", changing it fixed it

Thanks again, you're saving me from a lot of headaches ❤️

[woeful geyser]

How to get rid of ripples on textures? Mip maps are on

[grand jolt]

uf that looks ... interesting

[last robin]

it sure seems like mipmaps are not on or not generated? You could also be using tex2Dlod which samples a specific mipmap level? not sure

[woeful geyser]

well this appears when I change the checkbox "Generate mipmaps" in play mode and it does take effect. May be it needs to be really prepared in some way, I don't know
Forgot to mention that this is URP Simple Lit without modifications

[marble jasper]

Hello i'm currently working on a raytracer in unity using compute shaders

This is a part of the function i'm using to check an intersection between a ray (origin, direction) and a sphere

The line 'float a = dot(direction,direction);' works fine but the line 'float b = ......' crashes unity

I found out it has to do something with the function parameter 'float3 origin'

Even if i pass in the float3 origin as a hardcoded value unity still crashes

[low lichen]

Is it crashing as soon as the compute shader is dispatched or is it crashing during compilation?

[marble jasper]

How can i see that?

[low lichen]

It's compiled as soon as you've saved it and opened Unity again

[marble jasper]

The crash log says "Unity.exe caused an Access Violation (0xc0000005)"

It crashes during runtime

GPU spikes to 100%

and then it freezes

[low lichen]

There isn't any possibility you have some recursion happening, is there?

Crashes from shaders is not something I've seen often

[marble jasper]

Hmm

looks like it has something to do with float3 arithmetics?

float3 - float3

    float3 L = float3(0,0,-1.0f);

this works

wait

[low lichen]

What if you replace it with float3 L = origin - origin;?

[marble jasper]

it is really inconsistent

[low lichen]

How much memory does your GPU have? Do you have any reason to believe it's running out?

[marble jasper]

``` does not work

Running it on a gtx 1070 8gb

256x256 pixels

[low lichen]

How soon do you think it's crashing? I assume you're dispatching every frame?

[marble jasper]

Now i'm just dispatching it in the start method

[low lichen]

Hmm, and you can fix it consistently by removing one of those seemingly trivial operations?

[marble jasper]

wellllll

[low lichen]

Can the result of those operations have an effect on what the shader does later? Is there a branch to something else depending on the result of those calculations?

[marble jasper]

i've tried a lot of things and one time it worked, but then i tried it again and it didnt work

ye thats what i tried

1 sec

[glossy matrix]

no idea what im doing with shaders, but id like to combine these two passes, how would i go about doing that?

[marble jasper]

i'm gonna try some more things

[low lichen]

You're writing with the "fixed function" syntax in ShaderLab. It's kinda outdated and I have no experience with it.

[marble jasper]

Also @low lichen:
dot(L,L) works
dot(direction,direction) works
but dot(direction,L) crashes

Type mismatch?

or

[low lichen]

I would think any type mismatch issues would be a compile issue, not runtime

[marble jasper]

or zero division or smthng idk

[low lichen]

That doesn't normally cause crashes though

[marble jasper]

because dot can be zero right?

[low lichen]

I suppose it's possible

[glossy matrix]

ah -- i kinda just found it online, basically one pass only renders when its behind other object ( so you can see through it) and the other renders in camera view. . .

(essentially i just wanted a shader which you can see no matter if its behind an object or not, because camera layering is broken with some api im using ;-;)

[marble jasper]

Hm the crash seems to be caused by the code using the result of the dot

Can a sqrt(0) be a problem?

shouldnt be

[low lichen]

It can't hurt to add checks for it

I haven't heard of Unity crashes from shaders dividing by zero and similar math errors

[marble jasper]

oh boi it goes deeper down the rabbit hole

I think i found the issue

out Sphere hit

where hit is only assigned when a sphere is actually hit

[low lichen]

But surely it has to be initialized to something?

Does it even compile if it hasn't been initialized?

[marble jasper]

Might be a bug in unity compute shaders?

its only initialized within a branch

(Disclaimer: my code is getting messy)

When i do this i get a compile error: ''FindNearest': output parameter 'hit' not completely initialized at kernel CSMain

But if i do this i get no compile error while in some cases 'hit' is still not initialized

[last robin]

you're potentially not setting hit if you don't hit any spheres

[marble jasper]

Thats what i was saying :P

But shouldnt the compiler throw an error because of that?

[last robin]

oh i see

[marble jasper]

in for example c# the compiler throws an error if a variable only gets initialized within a branch

[last robin]

uh i've definitely had some weird compiler bugs show up in compute shaders so it's entirely possible it's a compiler bug

in my case it happened when using early returns and branches

not sure what it is about them that causes it but it's happened twice to me

what you can try is throwing a UNITY_BRANCH on top of the loop and see if it errors properly?

[marble jasper]

I'm not even using the objHit

[last robin]

i think maybe it's flattening the branch so it evaluates both sides

so if that optimization happens technically it would be initialized

if that makes sense

it really shouldn't do that though lol

sorry, not on the loop

on the if statement

UNITY_BRANCH

[marble jasper]

I'm trying

Takes some time to restart unity :D

Hm

How can an unassigned variable crash unity if i'm not using the variable anywhere

only 'out'ing it

[last robin]

🤷‍♂️

[marble jasper]

unrecognized identifier 'UNITY_BRANCH' at kernel CSMain

Its a compute shader ^

[last robin]

hmm just use [branch] then

it's defined in UnityCG probably but it's just a macro for [branch]

[marble jasper]

tried it

but

doesn't fix it

[last robin]

weird

well probably a compiler bug, but you should probably just return the index of the sphere and set it to -1 if nothing hits

as a workaround

[marble jasper]

Alright

same error

Write to location 0000000000000000 caused an access violation.

in the error.log

[last robin]

can you repost a screenshot of the code?

[marble jasper]

need to clean the code a little bit after all the testing 1 sec

uhm

Adding the "index = i"

crashes the program

waititt

it goes further

This crashes

this doesnt

[last robin]

well i mean the 2nd one i isnt used so that code is probably throw away

[marble jasper]

ah

okay but then my first image is still right

adding index=i; crashes it

[last robin]

like crashes unity?

[marble jasper]

yes

[last robin]

uh

idk what you're supposed to do lol

this seems like sane code to me

[marble jasper]

Are there any official unity developers in here? ;D

assigning 0 to index within the loop also works fine

[last robin]

a lot of code is probably removed cause it's a constant though

[marble jasper]

okeoke wait

index = int(i); also works

somehow

[last robin]

🤔

[marble jasper]

LOL

index is an int

i is an int

my head

[last robin]

lol

you can't reason with compiler bugs

makes me wonder if unity is using an old version of the HLSL compiler and some of this stuff is fixed

[marble jasper]

isnt unity using some kind of altered HLSL

[last robin]

not sure

[marble jasper]

k got it working

kinda

No sphere on my screen yet but that is probably just my broken code

Thanks for the help :D

wait nvm

okay

enough compute shaders for today

LOL

[shell thorn]

Sup!
Is any way to use a Sprite Lit Shader as a subgraph to reuse it in another one sprite lit shader?

Question closed, found a subgraph

[full merlin]

Hey guys. I'm learning about the shader graph and managing to get the hang of it. But there are some stuff I still don't know

Any advice on how I can improve?

[twin swallow]

<#archived-shaders message>
(link to a post I made last night)
Could someone take a look at this skybox shader I've been trying to make from a guide?
I don't know enough to see what mistake I may have made to get the output I'm getting.

[regal stag]

Are you sure the output isn't correct? The "correct output" image is looking along the y axis (down or up) while yours looks like it's just looking along the x/z axis somewhere. If you change the angle the camera is looking at they might be the same?
It does look a bit stretched horizontally though, maybe that's just the fov setting, not sure.

[twin swallow]

🤦🏻‍♀️

it looks more correct when i rotate the camera 90 on the x-axis

which doesnt make much sense to me 😅

[regal stag]

Yeah, rotating 90deg on the x axis would make the camera look directly downwards

It might be easier to visualise the shader in scene view where you can look in all directions easily

[twin swallow]

ah, because its a sphere

[glossy matrix]

i have this shader and would like to make the edge sharper, not sure how id go about with that, any suggestions?

[shell thorn]

play with color mask Range Fuzziness and some noise

but you need basically more play with noise to get smooth transition

@glossy matrix

[glossy matrix]

woa -- thx

isee what you mean with the nosie. . .

[shell thorn]

@glossy matrix this one

[alpine goblet]

hey guys random question, do you think amplify is worth it?

[craggy ledge]

guys when i do

mesh.vertices on MonoBehaviour, is it CPU or GPU modification of vertex ?

[potent haven]

https://docs.unity3d.com/ScriptReference/Mesh-isReadable.html

Short answer, is that making it editable means there's a copy in both C# and the GPU. They get updated when draw calls are dispatched.

Also, is there a section for compute shaders, or is this the right area? Apologies for the silly question. I'm just new here ^^

[echo solstice]

This is shader graph? Am I right?

[near pond]

it is

[drowsy trail]

I have an issue with my toon shader and how it casts shadows. Its supposed to work with shadow cascades and it does in the editor, but when I build the project all the shadows that are not under cascade 0 are broken. Is there a way I can fix this? I use URP and unity version 2019.3

https://media.discordapp.net/attachments/368165149426581514/811134672703848488/unknown.png Shadows in the editor

Shadows on build

the toon shader uses a custom script and two keywords

[naive pendant]

normalize the direction

interpolation can error and then you receive invalid values

normalizing the direction should fix some issues but maybe not all

[drowsy trail]

alright ill see if that will work

[naive pendant]

tell me if it works

[drowsy trail]

mmk

[naive pendant]

I'm mostly an render-api guy so after that it'll be harder for me to help xD

[drowsy trail]

it didnt seem to work, I added a line after 31
Direction = normalize(Direction);

though im not really sure if i supposed to do that, im not really good with shader code

[naive pendant]

I'd go step-by-step

from the shadergraph preview to what you have now

to see which line causes problems

you should always normalize values in pixel shader

because interpolation can cause floating point errors

well

always normalize normals

not every value

xD

[drowsy trail]

mm i see

[naive pendant]

so if only the direction of something is important always noramlize that. If you need direction + scale then don't normalize

[drowsy trail]

I was able to fix it after deep digging on the internet.
I basically changed
float4 shadowCoor = TransformWorldToShadowCoord(WorldPos);
to

float cascadeIndex = ComputeCascadeIndex(WorldPos);
float4 shadowCoord = mul(_MainLightWorldToShadow[cascadeIndex], float4(WorldPos, 1.0));

[surreal pivot]

I have this blur shader for UI Images
https://pastebin.com/FauXReFH
The thing is I would like a feather at the edges and have tried many things to accomplish this. Though I never could make it work :/
Could someone point me at the right direction on how to make that work?

[twilit geyser]

Hey guys 🙂 Are there no decal shader options in unity's built-in pipeline? I only found the decal shader in the HDRP pipeline so far.

[amber saffron]

no

[twilit geyser]

That's crazy, did projects simply not use decals at all before HDRP?

[amber saffron]

But there is plenty of assets to handle decals in the built-in pipeline

(If your original question is about built-in solutions provided by Unity)

[twilit geyser]

Hm yeah, I'm working on a decal pack for the store and I can't just add other people's work in the package

[amber saffron]

You could bundle in your pack a unitypackage with already setup decals for ultimate decals for example, without embedding other things : https://assetstore.unity.com/packages/tools/utilities/ultimate-decals-deferred-forward-urp-139080
Just make it explicit in your doc that if users want to use it, they need to have the asset installed

[swift loom]

Maybe an overly simple question, but in shader code if you do divide a float by a float3 what is happening? Is it just getting divided by the x in the float3?

[twilit geyser]

Thanks for the Info, Remy!

[amber saffron]

Did you try ? I think it will raise a compilation issue. You should either cast the float3 to a single float, or the float to a float3

[amber saffron]

A lot of assets work like that to support multiple solutions 🙂

[swift loom]

yes it works and my code works the way i intended it to but in the complete opposite way than i intended it to 😩

but what im doing is this

aah even a small snippet got nuked, sec

https://pastebin.com/1DuC1eyp

but whether distance is a float or float3 doesn't seem to matter so im assuming it's just using the x?

[amber saffron]

I think that the usual cast from float to float 3 is : float3 f3 = float3(f,f,f);

but the inverse is probably just using X indeed

[swift loom]

👍 Thanks. I'm just trying to learn this via code I find so sometimes they do things that I don't really get. :)

[amber saffron]

Still, I don't see why distance would be a float 3 😄

[swift loom]

yep it shouldnt be... but it still works 😄

[echo solstice]

Who can recreate shaders?

By looking at compiled shaders?

[near stratus]

Why is everything glowed? its standard 3d project converted to universal pipeline, i did the same in new URP project and it works any ideas?

[regal stag]

The glowing is caused by the Bloom post processing. An Intensity of 10.91 is probably quite high

[near stratus]

yea but why is everything glowing not only one object in my case its cube. Volume is in cube so it should work only for cube not every single object

and even the text is glowed

[regal stag]

Volumes won't cause certain objects to glow and others not. It's a screen space effect. It just means that the glow should only appear if the camera is inside the volume (for Local ones)

The volume is also Global, so it's always active in this case.

If you want only certain objects to glow, you need to have them output a brighter colour than other objects, and adjust the Threshold on the Bloom appropriately. Basically, if the output colour is brighter than the threshold it'll glow. I tend to have HDR colours enabled (on URP asset), then have a shader output values higher than (1,1,1,1) for glowing objects. Threshold can then be higher than 1, like 1.2 or something.

It works fine without HDR too, but you'd need to keep the threshold lower than 1 and be careful how bright other objects are.

[near stratus]

Thanks for help ❤️

[rustic thistle]

Hey guys it's me again. I have a a question. I have a iceplatform with refraction done via shader graph, but the problem is, that the because of the scene color node the character above the ice is refracted too. Have someone an idea how to solve this bug?

[regal stag]

You can sample the depth (Scene Depth node, **Eye **mode) using the same distorted coordinates that the Scene Color uses, and compare that depth value with the depth of the ice surface (using the Comparison node. Ice surface depth can be obtained with Screen Position node, set to Raw, Split and take the A output).

If the Scene Depth returned is smaller than the ice surface depth, you know it's trying to refract the player or another object ontop of the ice. The problem is there's no way to determine what the colour would be behind that object, so you have to result to using the non-distorted Screen Position.

I've used the same idea for a water shader to prevent it distorting objects above the surface. This is the part that shows the setup : https://www.cyanilux.com/tutorials/water-shader-breakdown/Graph3.png

Maybe not the best solution, can leave some artifacts behind, especially if MSAA is enabled. Not really aware of anything else though, (other than maybe trying to draw the player later / in the transparent queue so it doesn't appear in the scene color texture. That might lead to other problems?)

[rustic thistle]

Thank you. Huge fan. 😄 I just thought of a proximitry Custom Node, wich is stepping back when the z buffer of the refracted object lays above the ice. Could it work too? But I will try your approach for sure, too. Thank you 🙂

And yeah, you are right, changing the render queue is not a thing, because the character could fall of the ice, while the camera stay above, as in ragdoll after dead

[regal stag]

Not too sure what you are referring to by "proximitry Custom Node" really. If it involves depth it sounds like a similar approach to the one I discussed

[rustic thistle]

yeah it is very similar. my first attempts was that.

but it led to some artifacts. So now I am thinking of a Custom Node wich is lowering the strenght of the given refraction when the refracted objects lays above

[regal stag]

Yeah, that's similar to my approach above, just using Comparison & Branch instead of a Step & Multiply. I'd definitely handle it on the strength of the distortion rather than multiplying the result of the Scene Color though.

[rustic thistle]

Is this the shader you refered to? https://twitter.com/Cyanilux/status/1134420880891809793

Cyan ❄ (@Cyanilux)

Hey! Wanted to use the 'Scene Color' and 'Scene Depth' nodes a bit, which developed into this water shader. It's all drawn to the plane so the camera can't go below the surface, but it looks cool. 🌊#unity3D #madewithunity #shaders #shadergraph #VFX #VFXFriday https://t.co/laRjwMXmFk

Likes

350

▶ Play video

Twitter · May 31, 2019, 11:26 AM

[regal stag]

Yeah, I have a breakdown here, that's where the image above was from https://www.cyanilux.com/tutorials/water-shader-breakdown/

[rustic thistle]

This looks awesome, thank you. I will give it a shoot 🙂

Am I missing something?

It seems still refract the character 😦

[regal stag]

Scene Depth node should use Eye mode, and Screen Position needs to be Raw in top left

[rustic thistle]

oh okay, it worked

but i see the artifacts you meant

😦

[amber saffron]

An other trick to hack refraction is instead of using the scene color, you could sample from a precomputed cubemap

[sly breach]

how to change outline color ?

nvm found it --> https://alexanderameye.github.io/outlineshader

[swift loom]

I have an lighting shader with additive blend, is there any simple method for avoiding adding multiple light sources together?

BlendOp Max seems to work ^^ Thanks

[echo solstice]

Hello

Expert in shaders?

Is here any?

[digital gust]

Dont ask to ask

[echo solstice]

ShadowsAlphaBlendShadowReceiver.shader

Why I can't use this?

[digital gust]

How can you tell you cant use it?

[echo solstice]

I did

If you don't believe you can't use this

:(

[digital gust]

I am not going to load that file, sorry. What have you done to try it and what result did you get?

[echo solstice]

Pink

Shader

Hah

That's not a virus

😂

[digital gust]

Oh, well, if you say its not, i should have believed that chinese email saying it got 100 mio dollars for me 😉 😄

[echo solstice]

What?

Idk

[digital gust]

Okay, so pink shaders, do you use any specific render pipeline?

[echo solstice]

Chinese email

[echo solstice]

No

[digital gust]

Do you get any errors?

[echo solstice]

It tells this is compiled

[digital gust]

can you paste the shader code in hastebin com?

[echo solstice]

Ok

[echo solstice]

Here?

[digital gust]

hastebin . com

[echo solstice]

Can I dm you?

Text?

Like a text?

[digital gust]

Nope, pelase not, I dont do DM on this server

[echo solstice]

Okey

Then

Paste on hastebin?

Next?

[digital gust]

you get a link, paste it here

Where did you get that shader from btw.

[echo solstice]

From a game

https://justpaste.it/4mv2q

Look this

That's noy working

[digital gust]

Why arent you using hastebin, this is like a mess of text now...

[echo solstice]

Ok. If you like I sent you above shader

[echo solstice]

This

Btw I need shader graph

How to download it?

Or how to get get it?

Package

[amber saffron]

Then you need to use one of the render pipelines (HDRP or URP), it will come with shadergraph

[echo solstice]

I have unity 2020.1.17

[amber saffron]

My statement still applies .

[echo solstice]

Do you know method?

Packages

Updating?

[amber saffron]

Packages

[echo solstice]

Yes?

[amber saffron]

Or start a new project from template

[echo solstice]

I have seen in tutorials

[echo solstice]

Then

[amber saffron]

Then what ? You select the template with the render pipeline of you choice, and everything is set up

[echo solstice]

Ahhhh

[willow pike]

Would it be possible to have an editor based component that displays the hex values of the vertex colors I’m using on an object? Most vertex color tools for unity only give you an ink dropper which picks up the pixel color of an object on screen which isn’t helpful since those pixels aren’t the actual vertex color but the color of the object after rendering including shading and lighting.

I’d love to be able to assign the colors directly from palettes I’m creating and have them update when I change colors too but I guess that’s a separate issue 😆

[ivory sun]

why when i build game i see purple models ? i add shaders in project settings in graphic (always include list) and still i see that

[junior kelp]

are u using the right renderpipeline asset in graphics settings

its only happening in builds?

[queen spoke]

Hello everyone 🙂
Dumb question :
How to get a third channel ( input ) into the **Add **component of the **ShaderGraph **?
ps : it is by default possible with Amplify Shader Editor.

[junior kelp]

i think you just have to use another add node

[queen spoke]

@junior kelp Is there another add node ?
Or is there any possibility to create a "custom" one ?

[ivory sun]

yes i mean even when i run game, in editor all looks good

[junior kelp]

no i mean just do A+B and then do a second add node that does (A+B) + C

[ivory sun]

while run vs where i am only in editor

[queen spoke]

Ah okay ! Like this ?

Is this the same than having 3 channels ?

[junior kelp]

when you go to graphics settings in project settings, what does it say

@queen spoke yes it should act the same as adding the 3 things together

[queen spoke]

@junior kelp Okay thanks a lot 🙂

[junior kelp]

np 😄

[queen spoke]

Didn't know it will act the same XD

[junior kelp]

@ivory sun im not exactly sure whats causing the problem, but it should be solved if you just recreate your material assets and reapply them to your objects

ive seen the issue before if the material is missing a reference to the shader that its supposed to be using

[ivory sun]

when i run game its like that

[junior kelp]

are you changing anything about the materials in code

[ivory sun]

when i change shader to Standard all works

but without my shader :#

nope

[junior kelp]

what does ur shadergraph look like

[ivory sun]

just animate emission and give texture

[junior kelp]

hmm i cant figure it out

all i can think of is remake your material assets

[ivory sun]

k i will try

[queen spoke]

Another dumb question 😄
Brightness multiplier in Shader graph ?

[regal stag]

I believe the green nodes in amplify are properties. In this case a Vector1/Float, which you can set up in the Blackboard in shader graph

[ivory sun]

still doesn't work

[junior kelp]

im stumped

its weird how it only happens in play mode

[queen spoke]

@regal stag Ah yes you are right 😄
Thanks a lot

[ivory sun]

can u tell me steps to set up processing? maybe i mess up something?

i have to change volume or something in camera? now i w8 for compile

[junior kelp]

right click youre shader graph asset, then click create material. then drag and drop that material onto your mesh renderer of your crate

[ivory sun]

it's called activeCrate (that new) and still

[junior kelp]

right click assets > reimport all

[ivory sun]

ok now i have to w8 heh

[shell thorn]

Question for shader guru, I have a complex shader that include parallax stars background (subgraphs), and procedural nebula, they blended together.
I can't create 3D like nebula due limitations of real time performance of ray-marching algorithm, so to add some 3D "volumetric" effect I wanna join normal maps from different layers of nebulas and Light them by using their normal maps with background stars, any idea how to implement it in shader graph?

[shell thorn]

after few experiments I've got next results

[ivory sun]

still :# idk what's going on xd

oh i see

edit -> project settings -> graphics and there is render pipe. When i start it's getting "none" as value but when it's not playing/build it's my render pipe script asset right -.- why this reset on Play?

[shell thorn]

all stuff will reset in Play mode

according to your question set up render pipeline in Quality too

[ivory sun]

lol

fixed

ty bruh ❤️ heh

[simple violet]

how do I pixelate a fixed4?

[simple violet]

https://luka712.github.io/2018/07/01/Pixelate-it-Shadertoy-Unity/

{
    float2 uv = i.uv;

    float pixelX = _ScreenWidth / _CellSizeX;
    float pixelY = _ScreenHeight / _CellSizeY;

    return tex2D(_MainTex, float2(floor(pixelX * uv.x) / pixelX, floor(pixelY * uv.y) / pixelY));
}```

would this function pixelate a color gradient?

[simple violet]

so I have an rgb value that I want to pixelate

how would I do that?

do I turn the rgb value into a tex2d?

[simple violet]

is it possible to pixelate a fixed4?

text mesh pro has a variable called face color

faceColor.rgb *= input.color.rgb;

and I want to pixelate it

how would I do that?

where does facecolor go in here?

https://luka712.github.io/2018/07/01/Pixelate-it-Shadertoy-Unity/

I'm following this tut to pixelate a fragment

but I don't know where to put the RGB values

any help?

does pixelating work with vertext colors?

[simple violet]

can I apply the vertex colors to a texture?

and then pixelate it?

[simple violet]

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

I was able to make a pixelated gradient in shadertoy

I need some help converting it to unity though

Is this able to be converted to unity?

[naive pendant]

yes

[simple violet]

@naive pendant can I do it to a float 4 rgb value?

[grand jolt]

Hey, im kinda new to the urp shader graph. I want to create a shader graph and create a material in order to use it in a particle system. Can someone help me out? does this even work? any help appreciated

[digital hamlet]

@grand jolt yes it does

when your shader graph is done you can create a plain material

then change the Shader option from 'Universal Render Pipeline' to '{your shader}'

now you should have a working material with that shader graph applied

you can simply drag it in the Particle System Renderer material field

[distant zenith]

i have a question about lighting is this the place to ask

[digital hamlet]

#archived-lighting

[subtle apex]

is this the right place to ask a question about shader graph?

Is there some kind of "if else" functionality in shader graph? I have two different sub graphs for scene depth calculation (to handle perspective and orthographic camera in one shader) and I want this shader to have boolean parameter that calculates depth for ortho if true and for perspective if false. Or is it easier to just have 2 different shaders?

edit: it's "branch" node

[brisk prism]

Guys, i'm still new to shader, how do i combine both of these shader ?

[dreamy pewter]

hey guys is there a way to create a shader for 2d object (invisible enemy/object ) that can be displayed in a masked area i already have an image effect shader with a mask but i need the object to respond to it any idea??

[digital hamlet]

@dreamy pewter U mean this https://www.youtube.com/watch?v=4pl8DcsCQ_k

[silver tendon]

If I wanna do toon shading where do I start?

[dreamy pewter]

it work how stupid im XDD i was thinking complicated XDD its a good way to make a mask thank you ❤️ ❤️ ❤️

[digital hamlet]

You're welcome fellow gamedev 👍

[dreamy pewter]

here is the result i already have an image effect the maskes colors and now i added a sprite maske as a circle sprite its working good

[digital hamlet]

wow nice

Love the gameboy palette

[dreamy pewter]

thank you !! ❤️ 😋

[digital hamlet]

is it normal that it doesn't follow the player fully, like it stops when you get to the side ?

[dreamy pewter]

yeah im suck at AI so hhhh still cant find a solution for the enemy to avoid the walls or some kind of pathfinding i never tried pathfinding and all the tutorial i saw dosent suit my needs they all make like strategy style pathfinding

[digital hamlet]

oh no, I meant the circle

[digital hamlet]

i dont want to me the one always giving tutorials but this time it's a brackey's one: https://www.youtube.com/watch?v=jvtFUfJ6CP8

[dreamy pewter]

oh yeah! the sircle i dont know how to i tryed to make the pos_x and pos_y of the sircle in the image effect script to be the same as the player position but still it dosent display on the screen even when i try /screen.whidth and /screen.hight

[digital hamlet]

you can make it a child of the player object

so that it follows him everywhere he goes

• you get less code

[dreamy pewter]

no sicle mask is in the image effect script is not and object its a texture2d

so even if i made the sprite mask as a child i still need to make the colored circle mask in the image effect script follow the player

[digital hamlet]

can't you just make a child sprite with the sprite mask component ?

oh I see, you need it to color the stuff around into orange

yep

[dreamy pewter]

yeah 😛

hhhhhhhhhhhh

what a mess hhhhh

[digital hamlet]

@dreamy pewter can you send me a photo of your hierarchy with the player and the circle mask ?

[dreamy pewter]

the problem here is not in the sprite mask i can make it follow the player

the problem is the circle mask position i the image effect script need to be in the same position as the player and inside the screen

[digital hamlet]

how are you using mask_x_pos ?

you want to have it relative to the player and always inside the screen right ?

[dreamy pewter]

yeah

but it dosent display inside the screen

[digital hamlet]

you should try this:

maskXpos = (playerPos.x - (cameraPos.x - screen.width/2))/screen.width

maskYpos = (playerPos.y - (cameraPos.s - screen.height/2))/screen.height

[dreamy pewter]

its works !!! thank u ❤️ ❤️