archived-shaders

[cobalt totem]

I'm rendering using a custom material, I'm guessing I need a shader that uses transparency

 [SerializeField] private Material _rmat;
...
private void OnRenderImage(RenderTexture source, RenderTexture destination)
    {
        source.filterMode = FilterMode.Point;
        Graphics.Blit(source, destination, _rmat);
    }

Right now I'm using the `Unlit -> Texture' shader, I'm guessing that's the wrong one to use

[regal stag]

You may be able to adjust the Render Queue (or Sorting Priority) on the shader/materials

[jolly hatch]

Perfect thank you
The material sorting priority was accidentally set to 50 while I was setting some shader values

[lunar valley]

you can do it inside a post processing shader: cs if(length(col.xyz) == 0) { col.a = 0; }

[cobalt totem]

Sorry for the stupid question, I've written shaders in hlsl but I'm not sure how to create a shader that can be added to the post processing stack?

[lunar valley]

I usually write my post processing shaders with an image effect shader.

[bronze cove]

How would I combine these 2 nodes so the brown dirt part gets on top of the base texture?

[regal stag]

I'd put the texture RGBA into the Base port on that Blend node, the black/white mask at the bottom into the Opacity and use the Overwrite mode.
(Overwrite mode would also be the same calculation as a Lerp node, if you prefer that)

[rapid galleon]

Made some progress. Despite the right includes, instance id seemed to be returning 0. Eventually figured out almost all instancing logic is locked behind UNITY_INSTANCING_ENABLED which, oddly, isn't true at the same time as UNITY_PROCEDURAL_INSTANCING_ENABLED. Eventually just wrote a custom expression to read the instancing id:

// Standard behaviour is to only return unity_InstanceID for UNITY_INSTANCING_ENABLED.
// Caveat: You'd think otherwise, but just because UNITY_PROCEDURAL_INSTANCING_ENABLED is true, doesn't mean UNITY_INSTANCING_ENABLED is.
// In fact,UnityInstancing.hlsl makes these mutually exclusive.
#if defined(UNITY_INSTANCING_ENABLED) || defined(UNITY_PROCEDURAL_INSTANCING_ENABLED)
    return unity_InstanceID;
#endif

return 0;

[bronze cove]

Hmm I just tried that but then the black/white texture at the bottom loses the brown color

[cobalt totem]

@lunar valley For some reason I can overwrite the black with red, but changing the alpha doesn't do anything:

Shader "Unlit/DownSampCutout"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
    }
    SubShader
    {
        Tags { "RenderType"="Transparent" }
        LOD 100

        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float2 uv : TEXCOORD0;
                float4 vertex : SV_POSITION;
            };

            sampler2D _MainTex;
            float4 _MainTex_ST;

            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
                return o;
            }

            fixed4 frag (v2f i) : SV_Target
            {
                // sample the texture
                float4 col = tex2D(_MainTex, i.uv);

                if (length(col.xyz) < 0.01) {
                    col.r = 1;
                    col.a = 0.2;
                }
                
                return col;
            }
            ENDCG
        }
    }
}

[regal stag]

Is that something specific to Amplify that it requires UNITY_INSTANCING_ENABLED? Seems like an oversight, but if a custom expression works instead that's good.

[regal stag]

Can you show how you've connected them? It shouldn't lose the brown colour if that's the value of the colour property

[rapid galleon]

Yeah, not sure either. It could be there was a (IMO sensible) assumption that one would be always be a subset of the other.

Anywho, thanks for the help!

[lunar valley]

how and where are you then displaying the texture?

[regal stag]

For a shader to be transparent, it needs to specify a Blend mode. https://docs.unity3d.com/Manual/SL-Blend.html
Typically Blend SrcAlpha OneMinusSrcAlpha.
However I don't know if it'll work for a shader intended for a blit, if that's how you're drawing it

[hidden kindle]

Hi all, Unity beginner here. Is it possible to use opaque and transparent rendering in the same shader? I'm trying to design a shader that makes peeled areas of an apple completely transparent

[regal stag]

If the plan is to have parts opaque and completely transparent, then you may not need transparency. Alpha clipping (also called cutout/cutoff) could work (discards pixels if their alpha is below a certain threshold)

[hidden kindle]

Oh interesting, this sounds exactly like what i need!

I'll look into this, thank you 🙂

[rapid galleon]

Or if the surface of the apple is the same in peeled and unpeeled state (i.e. no bites), you might get away with lerping between two textures and you might avoid transparency or alpha clipping entirely? Depends a bit on the use case.

[regal stag]

Yep that also makes sense, assuming you can find a way to determine the peeled state in the shader. e.g. editing vertex colours on mesh, or painting on a render texture using model uvs / cylindrical projection.

[flat swift]

hello, i need help, i'm looking for a node in shadergraph that makes black switch to white (not fraction), and i can't find it's name... help me please

[regal stag]

If by black you mean a value of 0, then the One Minus node (or Invert Colors) would give you a result of white.

[flat swift]

arf, no i don't know how to explain it, it's like the fraction node with time, but it swiches to white very sharply, and i want it to switch to it very smoothly

[regal stag]

Like a Triangle Wave or Sine? (though they are -1 to 1, not 0 to 1 so may additionally need remapping)

[flat swift]

YES ITS SINE

thanks a lot!!!!!!

[smoky vale]

alright

[bronze cove]

For some reason the white mask (which is now red on the right side) lacks so much detail in comparison to the left node (original white mask)?

[cobalt totem]

Awesome that did the trick, now I'm just trying to figure out how to cut out the transparency without making it look terrible

[regal stag]

Set the Mode to Overwrite, not Multiply.
That should replace the white parts of the mask with the color_Layer0.

[bronze cove]

Whoops my bad-

But still looks kinda weird :/

[rapid galleon]

Hit my head too often one this one: sine waves normally go from -1 to 1. Make sure to use absolute values if you just want a smooth back and forth between black and white :p

[cobalt totem]

I can clip specific colours but then the colouring goes weird

[regal stag]

imo you should try to make the render texture itself contain alpha values rather than black. Where does the black come from, perhaps camera clear colour? Or from the shader drawing this cloud/fog?

[cobalt totem]

This is how I'm rendering to a texture:

public class HoloLens : MonoBehaviour
{
    private RenderTexture m_volumeRenderingTexture = null;
    [SerializeField] private Material _rmat;

    private void OnEnable()
    {
        m_volumeRenderingTexture = new RenderTexture((int)(Camera.main.pixelWidth * .5), (int)(Camera.main.pixelHeight * .5), 24, RenderTextureFormat.ARGB32);
        Camera camera = GetComponent<Camera>();
        camera.targetTexture = m_volumeRenderingTexture;
 
    }

    private void OnPreRender()
    {
        Camera camera = GetComponent<Camera>();
        camera.targetTexture = m_volumeRenderingTexture;
    }

    private void OnRenderImage(RenderTexture source, RenderTexture destination)
    {
        source.filterMode = FilterMode.Trilinear;
        Graphics.Blit(source, destination, _rmat);
    }

    private void OnPostRender()
    {
        Camera camera = GetComponent<Camera>();
        camera.targetTexture = null;
       //  Graphics.Blit(m_volumeRenderingTexture, null as RenderTexture, _rmat);
    }
}

Where _rmat is rendered using the shader I just made

[regal stag]

What is the colour property set to? I assume it's currently set to a red colour. Should be able to change it under the node settings while that property is selected

[cobalt totem]

(Also, I can set a colour like red to clip out, however it looks like this:)

Nice soft edges, but isn't the right colour

[bronze cove]

Yup it's currently red

[regal stag]

It might also be that the values in the mask aren't high enough. (1 should mean it'll be completely red, but the result here seems like partial transparency)
Maybe try multiplying the mask by a value (e.g. 2) then Saturate (to clamp between 0 and 1), before connecting to Opacity.

[regal stag]

What's the background source/colour on the camera set to?

[cobalt totem]

I have it set to red currently

[bronze cove]

The mask then comes out pixelated :/

[cobalt totem]

If I set the transparency on the camera clear colour, it changes the transparency of the entire image

(This is it set to white with some transparency for example)

[regal stag]

Is this still with the shader editing the values? I'd comment out this section for now

// sample the texture
float4 col = tex2D(_MainTex, i.uv);
//if (length(col.xyz) < 0.01) {
//      col.r = 1;
//      col.a = 0.2;
//}
return col;

[cobalt totem]

Yeah I've commented that out, and set the blend mode to alpha

Blend SrcAlpha OneMinusSrcAlpha

The camera renders to a temporary render texture, then it's upsampled back to screen size, background colour is set by the camera

[regal stag]

Then maybe you need to adjust how that mask is calculated. With this overwrite blend setup it should be completely red if the Opacity equals 1.

[regal stag]

I think this would suggest that the shader/material used to render the cloud isn't using transparency/blending correctly

[cobalt totem]

I think the shader I'm using is set to Premultiply

Hmm, changing it to alpha didn't make any difference

If I don’t use a render texture then transparency works, but then I can’t rescale it

[snow forge]

Is there a node in the HDRP shader graph that will allow you to blur an image?

[amber saffron]

Not really.
The closest you can do is to use the SampleLOD node and lower the lod level to have a lower resolution (kind of "blured") image

[snow forge]

Hmm. Okeydoke, thanks.

[bronze cove]

Hmm how would I combine all these 4 nodes?

[forest mason]

Hi guys, how can I make this an island (with erosion value) while keeping blue noise (sea) outside the island?

[snow forge]

Radial gradient on the alpha channel maybe? ((Very much guessing, still getting my head around The shader graph stuff))

[forest mason]

Still not working ^^ (maybe I'm doing it wrong)

[snow forge]

@bronze cove Blend Nodes? Using the b/w mask image you've got on there plugged into the blend opacity?

@forest mason gimme a sec.

I don't think you need the multiply, just plug the gradient straight into the W channel on your vector 4 node?

[forest mason]

Same result

[snow forge]

Hmm.......Not sure tbh, in my head that should work. But like I said, new to shader graph stuff.

try.....adding a solid colour (blue of your water), and then add a blend node, green&blue in the first input, solid blue in the second and then add in the radial gradiant into the Opacity (might need the first two inputs reveresed.

@forest mason

[forest mason]

Ok let my try

[regal stag]

Adjusting the w/a component isn't going to do anything as the Base Color is a Vector3, which ignores that component.
I believe you'd want to Multiply the output of the One Minus and the noise, (perhaps even with some additional remapping), before putting it through the Sample Gradient.

[mossy crest]

hi, can someone confirm if urp decals doesn't work on mobiles (android/ios)?

[forest mason]

That's better

[snow forge]

Yaaay, progress. I helped. lol.

If you want a sharper edge, just tighten up the gradient?

[forest mason]

(I'm on the good way ^^)

[snow forge]

Don't know it exists as a node, but if it does, maybe some distortion on the gradient to 'roughen' up the edges?

[regal stag]

You'd chain together Blend(overwrite) or Lerp nodes, similar to before. With Opacity as the black/white mask or alpha channel.

[bronze cove]

Thank you I'll try that!

[bronze cove]

Maybe try to add some noise also to it? Just an idea

[bronze cove]

Thank you!

[forest mason]

Yes that's what I'll try

How can I replace the noise color ? ^^

Without using Sample graient I mean

My attempts :

[regal stag]

Put the noise into the T port on the Lerp instead, set A and B to colours

[bronze cove]

Cant you just do this?

[forest mason]

(and what is that?? 🤣 )

[bronze cove]

Or am I wrong

[forest mason]

You are right! Thank you!

[cosmic prairie]

the graph has worms in it! 😱

[forest mason]

Yep it's my new companion now!

[cosmic prairie]

Does it help with coding?

[forest mason]

Not so much...^^

[forest mason]

Another solution without gradient and simplier

[forest mason]

Maybe it can help someone:

SubGraph to add sea to islan

Subgraph to create island

Final

[frigid galleon]

hiring shader artist, where would be an appropriate channel to post?

[cobalt totem]

I'm really really really close to getting the desired effect now! I just need to share a depth buffer between two cameras. It works like this: Camera 1 renders to the screen (colour and depth), Camera 2 needs to render to the screen with its own colour target, but using the depth from Camera 1

I don't know whether I should set Camera 1 to have Camera 2's render texture as a target for the depth buffer

Or, set Camera 2 to use the depth buffer from Camera 1

Using camera.setTargetBuffers()

[spare ermine]

I don't believe unity has a job section, but the discord servers gdn and gdl are good for that

[raven frigate]

Need some insight here. A good shader to make something look its pulsating/moving. Its for the identity disk.

[tacit parcel]

any example video?

[raven frigate]

I tried to put a gif but it would not let me put it here

[lunar valley]

I usually let each camera have their own depth and color buffer, except if the two cameras render the exact same thing but then i don't know why you need to cameras. If I need the depth buffer from the other camera, then I simply reference it and pass it over to the shader normally

[forest mason]

Hi guys! Anyone has an idea how to get a float from a noise? (I'm looking for a way to get a random float without using "Random Range")

[lunar valley]

If you google you will find a lot of functions for getting a number in hlsl

[snow forge]

I think you'd need to sample a random point on the noise? But I have no idea how to do that in ShaderGraph. 😕

[forest mason]

Sorry, I'm new to shader graph, I don't know what is hsl ^^

[snow forge]

hlsl is the 'original' shader format iirc

[lunar valley]

oh, hlsl is a shader language

[forest mason]

Yep that was my first idea but I don't know neither

[lunar valley]

time to learn them then

[forest mason]

Ho ok I got it. But I'm using Shader Graph to avoid writing shader code 😋

[snow forge]

The way I usually get a random number is set the seed to the current system time (that way it's always different when the code is run), and if the number needs to be very random (yes I know that sounds weird), set the range to something massive. (0-1000000)

[forest mason]

Thank you for the suggestion. The point is I don't really want to get a true random point. I want to get the height variation value from a single point in a gradient noise

(by height value I mean white value)

[snow forge]

Aaaah, okay. Gimme a sec, there's an idea in my head.

[forest mason]

(For a perlin noise, it would be the same as PerlinNoise(float x, float y);)

[snow forge]

Still learning myself, so this might be completely wrong. Vector2 (for your point location)-> Noise node (UVinput) -> should output a solid greyscale colour?

Not sure how you're generating your noise, but this is what I just threw together.

[forest mason]

Yep that works!

Thank you 🙂

[snow forge]

No probs 🙂

As frustrating as I'm finding ShaderGraph, this is kinda fun. lol.

[forest mason]

Haha yep^^

[snow forge]

So, I'm trying to come up with a Terrain Shader for kind've a specific use as I have yet to see the functionality I want in any of the terrain system available (I might be wrong, but I'm not forking out the money if they end up being useless. lol.)

But, I've applied my material to the terrain but getting this notice and can't for the life of me find where this option is.

Could anyone point me in the right direction please? 🙂

[lunar valley]

is the islandmaterial from a custom shader?

[snow forge]

Yeah.

[lunar valley]

is it shader graf?

[snow forge]

Yep.

[lunar valley]

https://forum.unity.com/threads/terrain-custom-shader-graph.1172447/

[lunar valley]

this should help

[snow forge]

Yeah I already read through that one. Doesn't really help tbh. And if completely honest, I really don't want to have to spend the time learning both hlsl AND Shadergraph just for this. 😕 It's okay, I can live with it. lol.

[lucid wave]

Hello, I am looking for some help with materials and shader properties. I'll try to make it short and to the point:

I have modified a default TextMeshPro shader to duplicate its text so it creates the illusion of having an outline. For setting the outline color, I have added an _Outline property.
This shader also has a _ColorArray property that based on the red value of the vertex color, it will output one specific color of the _ColorArray. The same should happen with the _Outline property.

Basically, I would like to make the _ColorArray global for all of the instances of a specific material, and _Outline should be defined in the Editor and is set per object.

I have a PaletteManager that iterates through all of the "shared" materials and correctly sets their _ColorArray. However, I believe that if I want a material to have an individual _Outline property, I need to make an instance for it, and therefore updating the shared material doesn't change anything in the instance.

Is this correct? Is there a way to apply some kind of "inheritance" where an instance of a material inherits properties from a base material, and then modifies some other for each instance?

I'm on 2020.3, if that's relevant!

[sick knot]

How do you combine shaders? I'm trying to put a CGProgram from one shader into another shader. I did it by inserting CGPROGRAM into the other shader's Pass, like below. Is this not a valid structure? Would I need to put it into a separate Pass code, or something?

SubShader
{
Tags { "RenderPipeline" = "UniversalPipeline" "RenderType" = "Transparent" "Queue" = "Transparent" }

    Pass
    {    
        Name "ForwardLit"
        Tags { "LightMode"="UniversalForward" }

        Blend SrcAlpha OneMinusSrcAlpha, One OneMinusSrcAlpha
        ZWrite [_ZWrite]
        Cull [_Cull]            
        ZTest LEqual

        HLSLPROGRAM
        `blahblahlotsofcodehere`
        ENDHLSL

        `i put CGPROGRAM here like this:`
        CGPROGRAM
        `blahblahlotsofcodehere`
        ENDCG
        }
}

CustomEditor "SW2.MaterialUI"
Fallback "Hidden/InternalErrorShader"    

}

To show actual code, I'm trying to put this shader https://pastebin.com/k900b95Z into this shader https://pastebin.com/fWSTRhR2 . The first shader is a water shader I like. The second shader is from a tutorial that adds a ripple effect to water.

[haughty moat]

I'm not sure that CGPROGRAM and HLSLPROGRAM can coexist in the same shader (and if they can, it should be in different pass, with different renderpipeline tags). CGPROGRAM/HLSLPROGRAM are I think the same, but one is for built in renderpipeline, the other for SRPs. Depends what you want to "combine".
Edit: I checked the links. you can't really assemble shaders like that, they are not as modular as OO classes. You can MAYBE extend one of the shader with the features you want from the other one if you know enough hlsl.

[sick knot]

Ahh okay, figures it wouldn't be too simple. Thank you for the insight!

[haughty moat]

I came for a question to this channel initially. Anyone using Rider knows if there is a way to get autocompletion in hlsl to run inside ifdef blocks referring to multicompile keywords (Rider seems to assume that all keywords are disabled by default)?
edit: like this, for multi compile keywords: https://github.com/JetBrains/resharper-unity/wiki/Switching-code-analysis-context-for-hlsl-cginc-files-in-Rider

[vague wolf]

Hi!
I'm trying to use these lines in webgl but they have no effect. The chrome console does not report any warnings. In editor they work fine. Any suggestion? Thank you

        Graphics.Blit(renderTexture, textureSupport, mMaterial);
        Graphics.Blit(textureSupport, renderTexture, mMaterial);

[celest flame]

hey not sure if i should be asking this here or in the URP section but are there any good resources for working with URP 2D Shaders? or am i fine just learning with the 3d materials to get started? both use shaderlab+hlsl so they would be similar in that respect at least but i think 3d shaders would be working with verts while the 2d shaders are working with sprites

[urban iris]

I have an "overlay" blend mode shader that is based on photoshops formula. It works as expected when project is in in gamma color space, but when in linear it doesn't look like it's able to go brighter than the texture.

Here is the overlay blending part:

float4 texColor = tex;
float4 vertColor = i.color;
float greyColor = (texColor.r + texColor.g + texColor.b) / 3;
float4 finalColor = texColor * i.color;
                
if(greyColor > 0.5)
  finalColor.rgb = (1 -( 1 - 2 * (vertColor.rgb - 0.5)) * (1 - texColor.rgb)) ;
else 
  finalColor.rgb = ((2 * vertColor.rgb) * texColor.rgb);
    
surfaceData.albedo = finalColor.rgb;

Anyone know if there's something that could be done? I'm guessing linear won't "over expose" when blending in that way?

[lunar valley]

Hm, if you are working in high dynamic range you need to convert it to a low dynamic range using ToneMapping if the image is being "overexposed"

[urban iris]

It's seems that the opposite is happening. I'm adding the vertex color (sprite) and if gray is over 0.5 it should make brighter - but it doesn't get brighter in linear.

[lunar valley]

why do you want to work in linear space anyway, gamma is usually the one to go

[urban iris]

Isn't it the other way around? Either way, that was a decision made by the team.

[lunar valley]

no I don't think so, unity is in gamma space by default for instance

[urban iris]

I think linear is default for URP
From the manual:
"While a linear workflow ensures more precise rendering, sometimes you may want a gamma workflow (for example, on some platforms the hardware only supports the gamma format)."

[lunar valley]

¯_(ツ)_/¯

[swift loom]

Can I check if a buffer is null or not in HLSL? Or do I have to set a variable that indicates that the buffer is allocated

[young rampart]

Does unity cache the values of keywords and global values and only update them if they changed, or should I check internally it's different before setting them?

[warped yarrow]

so I'm trying to do some custom pass stuff on my secondary camera. It's lower resolution than the main camera which is causing it be scaled weirdly, I've tried to scale it around a bit but its still a bit stretched/offset. Any ideas why?

    float4 _Scale;
    float4 SampleBuffer(float4 color);
    float xOffset;
    float yOffset;
    float xScale;
    float yScale;
    float2 textureResolution;
    float2 handleScale;
           
    
    float4 FullScreenPass(Varyings varyings) : SV_Target
    {
        UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(varyings);

        PositionInputs posInput = GetPositionInput(varyings.positionCS.xy, _ScreenSize.zw, 0, UNITY_MATRIX_I_VP, UNITY_MATRIX_V);
        
        textureResolution.x = _ScreenSize.z / xScale;
        textureResolution.y = _ScreenSize.w / yScale;
        handleScale.x = _RTHandleScale.x * xScale / yScale;
        handleScale.y = _RTHandleScale.y * yScale / xScale;
        float2 uv = posInput.positionNDC.xy * _RTHandleScale.zw;
        uv /= float2(xScale, yScale);
        //uv.y = _RTHandleScale.y - uv.y;

        // Load the camera color buffer at the mip 0 if we're not at the before rendering injection point
        float4 color =  float4(CustomPassSampleCameraColor(uv, 0), 0);
        if(varyings.positionCS.x > xOffset && varyings.positionCS.x < 1 / _ScreenSize.z - xOffset)
        {
            if(varyings.positionCS.y > yOffset && varyings.positionCS.y < 1 / _ScreenSize.w - yOffset)
            {
                color.rgb *= 0.125f;
                color.a = 1;
            }
        }
        return SampleBuffer(color);
    }

update: removing the * RT_HandleScale.zw and uv /= float2(xScale, yScale); bits somehow made it work? should that have happened?

[honest bison]

Any good tutorials on DrawMeshInstancedIndirect and shadergraph URP?

[regal stag]

It's not really a full tutorial but I do have an example here : https://www.cyanilux.com/faq/#sg-drawmeshinstancedindirect

[honest bison]

Any idea why my GPU fan comes on whenever I draw instances in game mode, while in editor it never does?

[shadow locust]

You should limit your framerate

if you have unlimited framerate it will draw frames as fast as physically possible

if your game is GPU-Bound that means your GPU will go to 100% utilization

in the editor there's a ton of CPU overhead for the editor itself so the GPU gets a rest

[honest bison]

I have managed to pass through a TRS matrix, but now working on the color.

Appreciate Cyan's link.

[sick pulsar]

is it possible to make a shader that colors the edges of whatever it's material is attached to

[lunar valley]

like an outline?

[sly forum]

Hello, can someone tell me if is too hard add an cull "off script" to a shader? I have been trying to figure out but my knowledge of scripting is almost nothing, if someone can help me please.

[lunar valley]

in hlsl you just add: Cull Off and you are good to go where is the problem?

[lunar valley]

in shader graf under shader properties or something you can set the culling to front back and off

[valid elk]

After switching from Android to Windows I get this when building my project, happens only in build. Any idea? It's a default plane

[meager pelican]

There's not enough info to answer your question.

[valid elk]

I'm doing a PC/Android VR project, switched from Android to Windows platform and when I tried building I got this. It's an URP project. Idk what else can I add?

[meager pelican]

Well, since you're in a shader section of discord, maybe tell us what shader is on that plane? Show shader.

Also VR info is new, so that may lead you to some answers from someone.

Maybe show us the whole screen so we know the context of the plane?
Is there a post-processing thing going on (is that a full screen quad, or just some plane in the scene somewhere?)

[valid elk]

default plane, so standard lit shader, supposed to be gray

[valid elk]

tried with and without post-processing on the camera, doesn't change a thing apparently

also this is the full screen, it's just a plane in an empty scene

it does that with any material I apply, the colour just changes a bit but the pattern is the same

does it on other objects also, not just the plane

[valid elk]

forgot to precise that I don't have the issue in VR build

[sly forum]

I tried putting on but It doesn't work, I guess I putted in the wrong place, as I said my knowledge of programming / scripts it's almost nothing, I'm sorry, I hope you can help me.

This is where I putted

[lunar valley]

it needs to be in the subshader, not in the pass

same with the tags, put them out of the pass

[regal stag]

That's not correct. LightMode tags are supposed to be in pass. There are different tags for both.
https://docs.unity3d.com/2020.1/Documentation/Manual/SL-SubShaderTags.html
https://docs.unity3d.com/2020.1/Documentation/Manual/SL-PassTags.html

As for Cull, it might also work in SubShader but usually goes in each Pass. So this should work. If it isn't, then perhaps there's a different pass or shader being used.

[lunar valley]

hm, my bad

the cull works in the subshader as well tho

I sinserely apologize

[chilly robin]

I'm trying to work on an eye parallax refraction in shader graph and I'm running into an issue

The refraction doesn't seem to be starting from the center of the UV. It's offset a bit and I can't figure out why.

The custom function is using the refraction method found here

[cobalt totem]

I'm using some HLSL code within my shadergraph shader, however it returns this error:

Shader error in 'Shader Graphs/NGTornadoDebris': 'tex2D': cannot implicitly convert from 'Texture2D<float4>' to 'struct UnityTexture2D' at Assets/CustomAssemblies/NextGenRayMarching/ngmarchdebris.hlsl(142) (on d3d11)

Here is the problem line of code:
float nonlin_depth = tex2D(_CameraDepthTexture, sPos).r;

How can I sample _CameraDepthTexture within my HLSL code attached to my Shader Graph node?

[lunar valley]

is sPos your uv's?

[cobalt totem]

sPos is from the Screen Position node

I've managed to rewrite it like this, but now nothing renders:

float nonlin_depth = SAMPLE_TEXTURE2D(_LastCameraDepthTexture, sampler_LastCameraDepthTexture, sPos);
depth = LinearEyeDepth(nonlin_depth) * length(rayDirection);

[lunar valley]

well uvs start from the bottom left corner (or top left?) at least not from the center so that might be why

[chilly robin]

But it's not happening from there either. It's just a slight vertical offset

[lunar valley]

this is how you usually sample depth, if you want it from 0 to 1 cs float depth = SAMPLE_DEPTH_TEXTURE(_CameraDepth, i.uv); float ZerOneDepth = Linear01Depth(depth);

[cobalt totem]

My code is using a custom HLSL function so I don't have the frag() function to access i.uv

[lunar valley]

well you need some kind of uv's to sample a texture

[lunar valley]

this effect should be from the middle of the eye?

[chilly robin]

Yes. It should give a parallax depth effect.

[lunar valley]

I wouldn't really know, have you tried offsetting it back with just a value

[chilly robin]

Yeah, but they've all ended in failure haha. I feel like I'm missing something simple but I can't figure it out.

[lunar valley]

btw. I think that eye looks really sweat tho

[lunar valley]

Maybe you could send me your code and not just the guide?

[cobalt totem]

I've changed the input for sPos to be a geometry UV node instead of the screen position node, the depth buffer appears to be getting read, but there's some sort of weird offset

[lunar valley]

not sure what you mean by that

[cobalt totem]

The trees and buildings etc are properly excluded from the rendering, but in the wrong place:

It's half way up the funnel, instead of at the bottom where the overlap actually is

[chilly robin]

@lunar valley Thanks for trying to help. I gave up on my approach and decided to just go with a standard parallax method. I might revisit this again sometime but I think it's good for now.

[lunar valley]

I think this looks super sweet

[swift loom]

Am I doing something wrong here? This is just a snippet but I'm trying to update this buffer every frame.

        computeObjDataNArray = computeObjDataBuffer.BeginWrite<ComputeObjData>(0, LoT_ObjectList.Count);
        computeObjDataBufferCount = 0;

        for (int i = 0; i < LoT_ObjectList.Count; i++)
        {
            if (LoT_ObjectList[i].objData.visionType > 0)
            {
                computeObjDataNArray[i] = new ComputeObjData
                                                (
                                                    LoT_ObjectList[i].flooredPosition * 100f,
                                                    LoT_ObjectList[i].currentBuildingNr,
                                                    LoT_ObjectList[i].behindBuildingNr,
                                                    LoT_ObjectList[i].currentRoomID
                                                );
                computeObjDataBufferCount++;
            }
        }

        computeObjDataBuffer.EndWrite<ComputeObjData>(computeObjDataBufferCount);
        cShader.SetBuffer(0, "_ComputeObjData", computeObjDataBuffer);
        cShader.SetInt("_ComputeObjDataBufferCount", computeObjDataBufferCount);

But it just will not update after the first batch of data is sent

this is set before the dispatch

being set in the main thread too

My structs, left c# right hlsl

Should I not have it set to subupdates? I thought that was the right mode. Dynamic?

[granite grotto]

Hello everyone, I'm new to the discord.

[sly forum]

Welcome HB

[granite grotto]

Thanks!

[lunar valley]

Welcome my man

[granite grotto]

I'm just a 3d Artist. I know nothing about writing shaders. I want to know if there is a Layered Lit shader for Unity 2019.4 standard Render pipeline. My employer are not willing to change render pipelines because our project folder is so big.

I need to create a layered mask on the ground texture but I'm locked out of shader graph.

[lunar valley]

you can always use hlsl instead of shader graf

[granite grotto]

Any ideas please? Thanks a lot.

[strong bear]

bruh help

[granite grotto]

Is that shader matching the correct render pipeline?

[granite grotto]

I have no idea how to write shaders

[lunar valley]

you just said you are doing it with shader graf usually

right?

[lunar valley]

also it is possible to have shader graf in the built in render pipeline

[granite grotto]

No, because it doesn't work in 2019.4 standard render pipeline.

[lunar valley]

oh yeah right old version I mean if you cant use shader graf then you will need to use hlsl for writting shaders

[granite grotto]

Its only works for HRP, URP, and SRP

[strong bear]

how to to fix

?

[lunar valley]

check the shader the material is using

or show it to me with a screenshot

[lunar valley]

the shader is probably not made for your render pipeline, but you can convert your materials under that tab-> Window > Rendering > Render Pipeline Converter

[lunar valley]

yeah might not be in there because it is using a custom shader

if you can't code shaders you are probably screwed

[strong bear]

is not working

[lunar valley]

I noticed

[granite grotto]

I don't know how to write shaders. My tech artist wants me to find one online and bring it in.

[lunar valley]

then thats what you should do

[lunar valley]

never used that tool tho so I am not so familiar with it

[grizzled bolt]

@strong bear if your tree assets are from an asset pack, check if they have a version that's compatible with your render pipeline

[lunar valley]

if it is not compatible you will need to find one that works for yours or change the shader so that it works with your pipeline

[lunar valley]

could you check in the asset store if it is even compatible with your pipeline ^^

[granite grotto]

I'm trying to find one but having difficulty. I wanted to know if anyone knew of what that they possibly used in their projects before.

[strong bear]

https://assetstore.unity.com/packages/3d/environments/fantasy-landscape-103573

[lunar valley]

Oh, I am sorry I can't help you with that, I usually like to make the shaders myself

[granite grotto]

I will look into it. The default terrain has layers but that's too heavy for what we are trying to do so I need a material that I can mask on a custom ground mesh using high fidelity textures.

That can be used with the standard render pipeline

[grizzled bolt]

The assets are old and there's no compatibility specified, so that strongly implies no SRP compatibility like URP or HDRP
You're on an SRP since you have the pipeline converter window, which can only convert non-custom shaders between pipelines

[granite grotto]

Only terrain layered materials there.

[kind spear]

Is it possible to add a custom pass to unity shader graph in URP ?

[swift loom]

Nah I cannot figure out how to update my structured buffer. I've tried using buffer.SetData on an immutable structuredbuffer and on a dynamic buffer and it doesn't seem to update at all, while a SubUpdate buffer with .BeginWrite only seems to update once... idk what's going on.

[swift loom]

I tried changing the struct to not contain a Vector3 in case that was messing it up as well but nothing. Int's shouldn't be a problem ??

Tried setting it to a RWStructuredBuffer too didnt help

I think I fixed it somehow?? It works but not sure how

Maybe my stride was too LOW making it not work but giving no error??

[fervent garnet]

Hi all, I'm trying to use the Scene Depth Node in with a 2d renderer, I enabled the depth/stencil buffer option in the renderer but I still just get a gray value from the node
What could I be missing?

[cobalt totem]

Sorry this has probably been asked loads, but I have a float3 which is a vector in world space, and I need to convert it to object space (actually texture space, so bottom left corner is (0,0,0)

float3 samplingPos = mul(unity_WorldToObject, rayOrigin);

Doesn't seem to do what I had hoped

[regal stag]

For transforming positions, you'd need to do mul(unity_WorldToObject, float4(rayOrigin.xyz, 1)). It's important that the w component is 1 so that the translation part of the matrix is used during the matrix multiplication.

That said, object space is also not necessarily the same thing as "texture space". Would depend on the mesh.

[cobalt totem]

It's just a cube, I've tried adding 0.5 to the resulting coordinates but I still can't get anything to render

It was working with shader graph's TransformWorldToObject() function, but now that I'm not using shader graph I have to do the conversion myself

It looks like they used UNITY_MATRIX_I_M, but it isn't defined for me for some reason

I've tried this: float3 samplingPos = mul(unity_WorldToObject, float4(rayOrigin.xyz, 1)).xyz + float3(0.5, 0.5, 0.5); but I think I may have made a mistake somewhere else

[wanton grove]

How do I read the result of a CustomRenderTexture into a Texture2D asynchronously? Whenever I try and use AsyncGPUReadback I'm getting gpu errors and I don't know why.

[cobalt totem]

Oh 🤦‍♂️ I've mismatched a whole bunch of variable names so they're all defaulting to 0

I'll fix it tomorrow I need to sleep

[inner hare]

Hey guys, I'm new to shaders and not sure what I'm doing wrong. This is supposed to be a simple shader that scrolls my texture.

I set it up (I think) the same as the guy in the video(https://www.youtube.com/watch?v=sL2o82VTxcM). Did I miss a step? Anything stand out to anyone? I did set my main texture in MainTex already.

[karmic hatch]

try putting it through a fraction node just before the sample texture?

[inner hare]

That definitely did something -- but is the problem with my texture or something? It all still comes up with these solid colored boxes, despite me putting in my texture

Here's the texture Im using

[karmic hatch]

apparently in the display, it ignores alpha, so if your entire texture is just white with different alpha, then it's fine

[regal stag]

Previews in nodes do not show transparency, only the rgb data which in this case is white.
But the Main Preview window (as well as scene/game view) will work if you connect the A output to the Alpha port in the fragment block.

[regal stag]

It should also work without the Fraction node, if you set the Wrap Mode to Repeat under the texture import settings

[inner hare]

Okay, I do have it as repeat so Ill take out the fraction node!

Here's what happens now, with alpha connected -- if I did it right -- same thing.

This is the tiled texture im trying to scroll

[karmic hatch]

Wrap mode here is clamp

As Cyan said if you switch it to Wrap it should loop properly

[inner hare]

oh crap, i have no idea how that got switched back

Thanks! that worked out well 🙂

I'm wondering now, is there a node that can be used to give these waves a little wiggle? I'm trying to play around with Gradient Noise, for example, but no matter where I hook it up, it really distorts the waves to the point that theyre incomprehensible. Maybe I should have it move over a normal map or something?

I'm trying to replicate this 🙂 https://www.youtube.com/watch?v=-V_Nfs5kKLM

[inner hare]

Okay, I can't figure this out haha. The closest I got was adding the value of a position node and the previous chain to cause some distortion effect. Doesn't seem to tile properly anymore, though. Do I need another texture just for the distortion? A bit confused here. I tried watching the first few Unity Learn tutorials (which is where I got the position node idea from) but it doesn't seem to agree with me.

[lunar valley]

what exactly are you trying to do, create the caustics or displace the vertecies of the mesh for waves?

[inner hare]

I think I'm just trying to displace the vertices. I don't even really need it to offset, just some kind of 'wavyness', like in the youtube video (I'd have multiple layers to replicate it more closely)

Sorry it's my first day with shaders so it's actually hard for me to explain

Oh wait, I think I am trying to create caustics. I just looked up what that means lol.

[digital gust]

Oh you want the light on the ground? Did I get you right there? 😄

[inner hare]

Yes! I do haha. Wow I'm getting a lot more google results now that I know this word hahaha.

[lunar valley]

you see just gotta know what to look for

[inner hare]

Exactly haha. This will help so much. I spent probably 2 hours trying to look for "2D Water Distortion Shader" and any variation of that 😂 😇

[digital gust]

Let us know what you found out. I would just do a shader with two textures above moving in the speed of the waves above, but there might be something more precise in terms of lighting

[inner hare]

Will do! And great tip, that might very well be what I end up doing :).

[grizzled bolt]

You most likely don't want to offset vertices if you're in 2D space because sprites and tilemaps use them very specific ways
If you want to distort a texture with shaders, you would add a value (or a texture) to the initial texture's UV coordinates
To let the distortion happen in all directions the distortion texture should be in -1 to 1 range (rather than 0 to 1 like textures usually) and contain different information on the two relevant color channels

If you want light caustics specifically, those are usually rendered additively below the water surface on a different sprite with an additive material or on the ground material

[inner hare]

Okay, I'll have to take a different approach. Yeah, I'm just trying to mimic the effect of light down on the ground to give the illusion that things are underwater here.

My approach has been to try to 'underlay' a gradient noise node which moves at a constant rate under the water texture. No dice so far.

I'll have to try some of your suggestions here -- would you say trying to render additively like you said would be the appropriate approach?

[grizzled bolt]

Additive blending will give the appearance of projected light, which light caustics are
If you want the water surface to be visible too then that should probably be alpha blended transparent, or opaque especially if there's foam

But it's an artistic choice to go either way

[inner hare]

It's actually just a 2d plane I'm trying to render it on, no foam, no water. Just the light (no edges or anything). I think you've given me a pretty good direction to go for tomorrow 🙂 Thanks again haha

[forest mason]

Hi guys, I am looking for some advice concerning heightmap generation with Shader Graph.
A color in Shader Grap is represented by a float from 0 to 1 for each channel (rgba), corresponding to the range 0-255 (if I'm not wrong).
That means I can only create 255 height levels. What can I do to have a better height resolution?
I've tried to use the three channels (rgb) to combine them. For example, I use the blue channel for sea height variation, the green channel for land height variation and the red channel for mountains height variation.
Am I doing right?
But in this case, I have another problem. Since I want to generate islands heightmap, how can I make the blue channel (sea) not taken into account when the green channel (land) is set, but while keeping the gradient between blue and green channel (beaches)? In other terms, is there a way to apply an outline gradient to my island shape?
I don't know if it's clear for you, tell me and I'll clarify.
Thanks!

[lunar valley]

usually for caustics people scrowl two textures and blend them between them

[inner hare]

Yeah, it looks alright when it's a pool of water, but since it's my entire play area it kind of causes motion sickness if it's scrolling and not distorting 🤢

[digital gust]

you got 255 levels for each color

256 rather said, so times 3 is your resolution if you stick to rgba

oh yeah, you could also use Alpha as another factor if you need 😄

[forest mason]

Yep so I'm right using all channels 🙂 👍🏻

[lunar valley]

the blending between the texure causes the distortion, if you just move them and then not properly blend them together but lets say just add them then they won't distort

[forest mason]

But the real problem is the overlying levels

[inner hare]

Oh no I mean I want them to distort. Scrolling is the quick way to do it, but like I said it causes motion sickness since you have no steady frame of reference

[digital gust]

So you want to distort the texture with like the good ol photoshop wiggle filter

[inner hare]

At this point I'm trying to get it to be one, tiled texture of the wave lights that doesn't move (no scrolling) aside from the gradient underlay

[digital gust]

https://portamedia.studio/quick-tip-simple-uv-distortion-in-unity-shader-graph/

take that 😄

[inner hare]

oh hello

Too bad the download 502's! time to build this by hand

[lunar valley]

with this it is also moving the texture to distort it

[lunar valley]

I just think you do not understand what I mean

[inner hare]

Maybe I don't haha. I'm going to re-read, then.

[digital gust]

Ah yeah, he might be thinking, blending is the visual additive blending. what @lunar valley means is, you lerp between texture one and two, so visually its morphing from state A to state B, which are your textures. Did I get that correct?

[lunar valley]

yes I did not mean to just add the textures together

[digital gust]

But in the shadergraph they are using only one texture and distort the UVs, as far as I can see

[inner hare]

Oh okay I totally misunderstood, my bad.

[digital gust]

There is no texture blending in the example I posted, or I am missing it 😄

[lunar valley]

I am on my phone and I can't really see the nodes

[lunar valley]

you are right but he is still moving the noise which distorts the uv

to create the distortion effect

jesus these nodes are tiny on my phone

[inner hare]

Mm yeah I kind of see it in the visual example, that might cause issues for players.

[digital gust]

That might be a question if intensity and movementspeed tho

[inner hare]

soooo close https://gyazo.com/41836ec02ab6c4a63924c32603056619.mp4

It works, just need to figure out how to get this to effect the entire thing and not just individual tiles

[digital gust]

That is just a question of uv tiling 🙂

[inner hare]

And I will learn about THAT tomorrow 😂. I feel like everyone's first day with shaders is a big day.

How lucky am I that I have 2 or 3 people stepping in a 4 am, solving this in 30 minutes when I've been at this for 6 hours. Honestly thank you guys so much hahaha

[digital gust]

Global Communication making it possible 😄 its 11am here 😄

[lunar valley]

its 1p.m. right now

where I am

[inner hare]

Well I wont ping you when I'm up struggling again at 4 am YOUR time, promise hahaha

[lunar valley]

hehe

[inner hare]

You two are beasts, have a great night 👌

And you too spazi

[snow forge]

Mornin' all.

Soooo, playing around with something new today in URP ShaderGraph. I'm following along with a tutorial to make a 'shockwave' type effect but almost immediately have come across an issue.

I've matched everything the guy has done perfectly, but getting a different 'behaviour' than what's on the tutorial.

In the image attached the SmoothStep output has a hard edge, where the tutorial is showing a soft/feather edge, and I'm a bit baffled as to why it's different. 😕

Would anybody have any ideas?

And just for comparison, screengrab of the tutorial I'm following for the same step.

[lunar valley]

his face is covering some nodes

[snow forge]

Yeah I know, so bloody annoying, gimme a sec.

He keeps moving his cam window. lol.

[lunar valley]

he multiplied with .1 at the first node you only with one but that will almost definitelly not change anything

[snow forge]

Yeah, that just slows down the effect. He only changed it to 0.1 for a few seconds in the vid.

[lunar valley]

yeah..

[lunar valley]

not really sure.. have you tried lerp instead of smoothdamp?

[snow forge]

I shall give that a go. Baffled as to why mine is behaving differently tbh. Although having said that, with the frequency in which Unity changes things I'm not surprised. lol.

[lunar valley]

tbh. these nodes should not have changed and probably will behave the same

[snow forge]

Yeah that's what I figured. Just very confusing. lol.

[forest mason]

Hi again. I have a shader graph that gives me this. How can I adjust the gradient outlining the shape? Like a blur effect.

Expected result:

(I made this blur effect in paint.NET)

[amber saffron]

There is no easy way to blur only with shadergraph.
But here are multiple hints :

• Use Texture Sample LOD to sample a lower resolution of the texture, resulting in a "blurrier" effect
• Sample multiple times with UV offset and do an average. But larger the blur, the more samples required
• Use an already blured version of the texture and contrast it in the graph to have a "not blured" version.

[lunar valley]

https://youtu.be/c30uBsyMnNY

[lunar valley]

Little blur shader tut

[forest mason]

TY for the suggestion. I wonder if it's possible to achieve this with a custom function node

[forest mason]

TY I'll try this

[amber saffron]

Yes it is, in particular for the multi sample method

[lunar valley]

O can recomend writing it in hlsl tho, because of things like for loops

[forest mason]

That said, I'm not familiar with HLSL ^^.

[lunar valley]

well you can also do it in shader graf it will be just a lot of copy and pasting nodes

basically with the method of that tutorial the more nodes the more samples the more blur

[forest mason]

Ok thank you, I'll try after work

[cobalt totem]

This is weird, not sure what I've done here:

The image is what I want, but it's being drawn on each face of the cube, instead of inside the volume

Key bits of code:

 struct appdata
 {
       float4 vertex : POSITION;
       float2 uv : TEXCOORD0;
};

struct v2f
{
     float2 uv : TEXCOORD0;
     float4 vertex : SV_POSITION;
     float3 viewVector : TEXCOORD1;
};

 v2f vert (appdata v)
{
     v2f o;
     o.vertex = UnityObjectToClipPos(v.vertex);
     o.uv = v.uv;
     float3 viewVector = mul(unity_CameraInvProjection, float4(v.uv * 2 - 1, 0, -1));
     o.viewVector = mul(unity_CameraToWorld, float4(viewVector, 0));
     return o;
}

Cull Off ZWrite Off ZTest Always
Blend SrcAlpha OneMinusSrcAlpha
Tags { "RenderType" = "Transparent" }

[amber saffron]

What is happening in the fragment shader ?

[cobalt totem]

I can send the full code in a few minutes, but in short it does volumetric ray marching and returns density and opacity values in the RGBA channels

[amber saffron]

That's what I was suspecting from the message, but the image shows otherwise ^^

[cobalt totem]

What’s rendered to the surface looks correct, it just should be inside the cube

If I move the camera inside the cube I can move through the individual tornadoes

[digital gust]

You know how shaders and UVs and stuff work, right?

There is no mesh "inside" your cube. The mesh consists of the 6 individual faces

You can of course make a shader react to screenspace position and camera, but not sure that is actually what you putting on the faces then right now

[cobalt totem]

I had it working with shader graph, but I was using so few of the features I’m attempting to translate it to a regular shader

[digital gust]

Cant you export a "default" shader to base on your shadergraph code? Just curious

[lunar valley]

what about you show us your fragment part

[cobalt totem]

Will do, just on my phone right now, I’ll be back at my computer in a couple of minutes

[karmic hatch]

looks like the size property defines the thickness of the shockwave, and by default float properties are set to zero. Look in the graph inspector for the property and change the default value to e.g. 0.1 and see if that changes anything

[lunar valley]

ok I am on my phone right now so I didn't take that good of a look on it, but I can see that you are trying to do some sort of rayCube intersection shader

is this correct?

[cobalt totem]

Yes, I also need the minimum and maximum bounds, which for now I’m passing in manually to test

I’m calculating the bounds as: position +/- (scale * 0.5)

[lunar valley]

I am confused are you using an actual cube gameObject for this, usually these kinds of shaders are being done with an image effect shader/post proccessing

And also are you making some clouds ?

[lunar valley]

I am gonna take a proper look at it once I get home, looking on that chunk of code on my phone is just pain

[cobalt totem]

Yes I'm just rendering to a cube, it all worked fine with shader graph, there must be something subtly different about the world/object space conversions now that I'm using a regular shader

Also yes I'm rendering clouds, specifically in this case a tornado, but the "material" is the same

[cobalt totem]

Thank you, I'll let you know if I fix it beforehand 🙂

[regal stag]

If this is being drawn to a cube mesh I'm a little confused at why the viewVector is based on uv coords like this.

float3 viewVector = mul(unity_CameraInvProjection, float4(v.uv * 2 - 1, 0, -1));
o.viewVector = mul(unity_CameraToWorld, float4(viewVector, 0));

I think this would only make sense if rendering to a fullscreen quad / blit?
For a mesh in the scene, I imagine you'd want a vector from the vertex position to camera. That would be :

o.viewVector = (_WorldSpaceCameraPos - mul(unity_ObjectToWorld, float4(v.vertex.xyz, 1)).xyz);

(or perhaps negated, depends which direction you need to raymarch in)

With the samplingPos, that should also use float4(rayOrigin.xyz, 1) if it's a position, as mentioned yesterday : #archived-shaders message
Though, I imagine it may also be more performant to move your calculations to object space if you don't need the world ones. Then you don't need to do WorldToObject matrix multiplications in the loop.

Possible there's other problems but those are the ones I've noticed

[cosmic prairie]

I did recommend the idea of loops in shader graph at Unite 2022, hope that's on their roadmaps somewhere 😄

[cobalt totem]

Aha!

Thank you! I just need to check the other calculations that are being done

@lunar valley Cyan helped me out and it looks like I'm making good progress, just thought I would let you know to save you some time! 🙂

[lunar valley]

ah nice, just got home, good to know, if you need anything just ask

[lunar valley]

yes when using grafics.Blit or rendering for the entire screen this is how you can get the viewDirection, I like doing that it's quite nice

[sick knot]

Hi, am shaber newb. how can a Color selector be added to this shader? https://pastebin.com/raw/cDNPCVVw I've tried a few things but Unity isn't happy

[lunar valley]

you want to have a Color property?

is that what you are asking?

[sick knot]

Yes, just something to add a Color picker within unity that works. I can get a color picker to show up, but it doesn't actually change the material color. so i'm doing it wrong

[lunar valley]

       _Color("SomeColor", Color) = (1, 1, 1, 1)```

and then in the pass do this:

float4 _Color;

[lunar valley]

done you have a color you can use

[regal stag]

There's an example here which should be useful too : https://docs.unity3d.com/Manual/SL-VertexFragmentShaderExamples.html#:~:text=Even simpler single color shader

[sick knot]

Finally working, thank you.

[cobalt totem]

Okay so it turns out one of the assets I'm using has downsampled depth textures, potentially saving a ton of work

uniform UNITY_DECLARE_SCREENSPACE_TEXTURE(_CameraDepthTextureEighth);

That is in an external include file, I've included it using #include "../../../ExternalAssemblies/WeatherMaker/Prefab/Shaders/WeatherMakerCoreShaderInclude.cginc"

But how do I now access the texture?

The result so far BTW

[lunar valley]

why do you want a compressed depth texture

[cobalt totem]

I'm rendering the tornado at 1/8th resolution, it drops rendering times from 30ms to about 7

[lunar valley]

makes sense, I mean usually if you include something with cginc you can just straightup use the functions and all of the stuff that is inside it

[cobalt totem]

So I should just be able to do SAMPLE_DEPTH_TEXTURE(_cameraDepthTextureEighth, i.uv)?

[lunar valley]

maybe.. I mean I haven't seen the include file, is this _cameraDepthTextureEighth from the cginc?

[cobalt totem]

Yeah, I’m just not sure if I need to prefix it or something to reference the texture

[lunar valley]

why don't you just try it out first

[cobalt totem]

I've just given it a go but get an undeclared identifier error

I've added the declaration UNITY_DECLARE_DEPTH_TEXTURE(_CameraDepthTextureEighth); to get rid of the error, but it doesn't look like it's having any effect, one issue may be that I'm sampling with i.uv but I need a screen space coordinate instead

[solar musk]

is it possible to open this .shader file? visual studio doesn't recognize it

[solar musk]

never mind i got it

[cobalt totem]

I think I've got it working! 60fps at full HD resolution, previously it was only 20!

Now I just need to find a way to smooth out that aliasing from the depth buffer

[sly forum]

Still doesnt work, is easy to make rendering shapes of shadow independently from main geometry? Because i tried the cull script and it didnt work idk why

[regal stag]

You didn't clarify you wanted shadows to be double-sided in your original question. That should be possible by setting the Cast Shadows option on the MeshRenderer component to Two-Sided.

[sly forum]

oh yes my bad, i did not explain very well, probably it will sounds stupid, my knowledge its nothing but i want to ask, isnt there any way to add an script for cast shadows to two-sided? without using that option

[regal stag]

Eh, using that option is the simplest way. But if that's not available for some reason, then adding Cull Off to the pass labelled with "LightMode"="ShadowCaster" would probably work. (If the shader doesn't contain one, it's inheriting the one in the Fallback, so you'd need to copy the pass from there)
Or manually change the model so it has duplicate faces with flipped normals.

[sly forum]

I did work, thank you very much sir.

[lunar valley]

hm I am sure there is a way to get that, I just do not know it out of my mind. Maybe cyan knows something

[regal stag]

To get a screen position you can use float4 screenPos = ComputeScreenPos(clipPos); (where clipPos is the value you get out of the UnityObjectToClipPos.. probably stored in o.vertex?
Handle that in vertex shader, pass to fragment then use screenPos.xy / screenPos.w instead of the uv.

[cobalt totem]

That’s exactly what I did, worked like a charm! 😊

[lunar valley]

awesome

[lunar valley]

btw. did you now manage to get the compressed texture?

[cobalt totem]

I did, however I’ve opted to use _LastCameraDepthTexture since that results in less aliasing around the tornado

[lunar valley]

whats wrong with _CameraDepthTex.. ?

Also, LastCameraDepth texture is kinda a bit unreliable, I tend to not use it

[cobalt totem]

I only render the tornado on one camera, so there’s no other scene objects if I use _CameraDepthTexture

[lunar valley]

you render the tornado with a second cam?

[cobalt totem]

Yeah, it lets me downsample only the tornado and then upsample again

Or put better, render at 1/4, 1/8th resolution and upsample

[lunar valley]

aight

[cobalt totem]

Unless there’s a way to do the same on a single camera? I’m guessing that wouldn’t be as easy though

[snow forge]

I'm having a weird brain thing (it's late and it's been a very long day. lol.).

How do I get vertex height in HDRP Shadergraph?

[karmic hatch]

y component of world space vertex position?

[regal stag]

Position node would give you the vertex/interpolated positions. Split to get G/Y axis

[snow forge]

Thaaat's the one. Thanks. lol.

[regal stag]

Whether that's the "height" depends on the space, whether the object is rotated, etc.
Can use world space but then you may want to subtract the objects origin too (position from Object node)

[snow forge]

I'm doing it for a terrain just had a weird brain block. lol.

[honest bison]

How would I get started designing a compute shader to perform lods and culling on instances?

[cursive jewel]

Guys I made a shader using shader graph.. its working fine in editor.. but when I build for android its turning purple...
While building console is showing like this.

[violet urchin]

Im trying to create ground on my simple game. Is there any shader or texture setting which allows me to randomly mirror/not mirror my texture ? With U mirror and V repeat it still looks a bit repetitious.

[cosmic prairie]

is it pixel art / low res texture?

[violet urchin]

not sure, medium res 238px x 238px

[cosmic prairie]

then it probably won't look good mirrored, check this instead https://blog.unity.com/technology/procedural-stochastic-texturing-in-unity

otherwise you could round up the texture coordinates, sample a noise map with 2 channels, and sample like: texcoord.x = texcoord.x * noise.x -texcoord.x * (1 - noise.x)

do that with the y aswell

if you need further details let me know

[violet urchin]

This looks insane, gonna try to set it up asap, thanks a lot.

[lunar valley]

what people usually do is they randomly rotate each tile of the texture and blend them together seamlessly

[violet urchin]

gonna try that aswell thanks

[cosmic prairie]

how do you blend them? Do you layer multiple?

[lunar valley]

no, I think you understand me wrong basically the uvs get all a random rotation

https://youtu.be/EB61JuxGTbE

and then we smooth out the edges so that there is no hard edge between the tilles but instead blends between the rotated tiles

[cosmic prairie]

Ah, I see, ty!

[ionic brook]

[Question]
Does anyone have an Idea how i could render the same object differently in two cameras? Eg. in one camera the object is lit by directional light and in the other camera the object does not get lit up by directional light?

[lunar valley]

I mean you can just have a copy of the objects which only renders to the second camera and doesn't accept any light

[snow forge]

@lunar valley I found that channel last night and dear lord I love that guy. lol.

[snow forge]

Is it possible to colour a mesh based on the grey values of a B&W image instead of using the height of vertices?

[lunar valley]

Whats a B&M image am I stupid?

[snow forge]

Black and White 🙂

[lunar valley]

oh

[lunar valley]

what do you mean, I do not really understand the question?

[snow forge]

I've got a heightmap that I'm using that I exported out of Gaea, and have a PNG version of it to, and was just wondering if/how I'd go about using that to drive the different texture layers.

For example, from a height (gotten from the image) of 0 to 0.2, there would be sand, from 0.2 to 0.4 would be soil etc. etc.

[lunar valley]

well yeah you can check if the color of the texture is smaller than 0.2 for example if yes output a yellow color or something

[snow forge]

Right okay. Been trying for a while but appear to be getting nowhere. lol. (using HDRP shader graph btw). I know I need to 'normalise' the values coming out of the 'split' node, and from what I know the saturate node does that. Is that correct?

[lunar valley]

the saturate node clamps the value between zero and one it does not normalize it, thats something different

[snow forge]

Ah okay, but yeah I need the value coming out of the sample node to be between 0 and 1, so that makes sense 🙂

[lunar valley]

if you sample a texture the colors from that texture are allready gonna be between zero and one

[snow forge]

ah okay

[violet urchin]

Are those nodes downloadable&importable ?

[lunar valley]

I do not know, maybe

[lunar valley]

with nodes you mean the final shader?

[violet urchin]

yes, im having a hard time setting it up while going through all videos

[lunar valley]

Yeah well, not that I know of

[fervent garnet]

Hi all, searching for a way to mask out all of intersection with the mask, that is get a result will all of the intersections and not just cut them out like multiply would leave, cant think of anything

[rigid sandal]

Could anyone help me fix this issue?

[fervent garnet]

So in this case I want to keep all of the noise blobs that intersect the triangle

[rigid sandal]

the error occurs here

[shadow locust]

I mean you wrote i >= 4 but you never declared i

so what would you expect other than an error?

[rigid sandal]

dunno

im new into this stuff

[shadow locust]

you can't use variables that don't exist

[rigid sandal]

okay, thanks

[amber saffron]

Using multiply or minimum would show the blobs "inside" the triangle.

But you can't filter the "full blobs that touches the triangle" without complex behaviours like fill algorithms

[iron rain]

Hi, i have A 2D shader but i don't know how i can output the Final processed texture for now i use that but don't work

[hearty obsidian]

Q for you all, I'm rendering my enemies line of sight. The LoS(line of sight) is a procedural mesh which I'm rendering with a default unlit transparent material. The current behaviour is that when enemies are in proximity of one another, multiple LoS renderers are drawn on top of one another and I'll get varying opacity.

Now my desired behaviour would be that all LoS are rendered as one and the opacity is the same, regardless of whether or not multiple LoS are rendered on top of one another.

How can I accomplish this? (Below is SS of current state, varying opacity of the LoS)

[errant bay]

Hello Guys, I have a problem. My texture have shapes with this thickness but in Shader graph Sample Texture 2D note see this much bigger. Could u help me? Additionaly I'm sending a screenshot of importing settings.

[amber saffron]

Either you need to render them as opaque in a dedicated render texture and composite with the game, or you can render them directly opaque with the blended color value.

[amber saffron]

This should just do it, what is the issue that "it don't work" ?

[amber saffron]

You need to also use the alpha channel, shadergraph preview doesn't display the alpha

[iron rain]

i have the pink output

and not that test image

[amber saffron]

And in the scene/game view ?

[amber saffron]

Any compilation error in the console ? Did you save the shadergraph ?

[hearty obsidian]

How would I accomplish the latter? Transparent render queue but render as opaque? Would that allow me to sample the opaque texture with the same value for all line of sights rendered?

[iron rain]

howdo we save

[amber saffron]

Top left corner of the shadergraph window

[amber saffron]

Just regular opaque, but with a solid color that matches what you want

[amber saffron]

Else, indeed there is an other option : transparent object but with alpha to 1, and blend yourself with the scene color

[iron rain]

No compilation error still is the same

[amber saffron]

Have you set URP as your render pipeline (or the renderpipeline that your shadergraph is targeting) ?

[iron rain]

how do i do that

[hearty obsidian]

@amber saffron worked like a charm, thank you

[amber saffron]

Please : https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@12.1/manual/InstallURPIntoAProject.html

[amber saffron]

Please do some effort and read the page, everything is in there.
You need a "RenderPipelineAsset" to assign in this field.

[snow forge]

Okay, so this is now driving me absolutely insane.

In my head, the simple node setup I have SHOULD create a gradient-ish surface texture on the terrain (going from red to blue). But it's coming out solid red.

Been staring at this graph for so long I have no doubt I'm missing something really bloody obvious. Anyone have any ideas?

[iron rain]

my bad sorry i got to fast

Thank you !

[amber saffron]

iirc, the terrain doesn't have UVs, everyting is done using the vertex positions

If it's a unity terrain

[snow forge]

If I plug the texture I'm trying to use to drive the colouring directly into the Albedo, it fits perfectly.

[amber saffron]

And the texture is B&W, right ?

[snow forge]

Yeah.

[amber saffron]

Aaand, on the material, the two color properties are set correctly (not two reds) ?

[snow forge]

lol. So I just tried plugging a position node instead of the texture aaaaand....

Yeah, one blue, one red.

[amber saffron]

What happens, if you, let say, use UV.X as input for the lerp ?

[snow forge]

1 sec

[amber saffron]

Ok, so, clearly UVs are correct. But no blue ?

[snow forge]

yeah, 1 sec.

Okay, plugged the UV Y in.....and the 'node' preview works fine.

[amber saffron]

But not in the scene ?

[amber saffron]

This makes me just think that the blue color property is actually set to black on the material.

[snow forge]

Oooookay. Stupid Unity. For some reason the colour wasn't changing to blue (I'd edit it, but it'd revert back to black. lol.)

Yaaaaay

[amber saffron]

Changing on the graph won't update on the material once it was created, as the graph is the "default" value and the material overrides it.

[snow forge]

Oh no, I meant in the inspector of the material. It just kept reverting to black. lol.

Taken me nearly all bloody day to get this far. lol. Thanks for the help though, really appreciated. 🙂

Well holy poop. I appear to be making progress. lol.

[idle jacinth]

Hey !
I remade the unity logo in GLSL : https://www.shadertoy.com/view/clfSD7

[snow forge]

lol....nice

[snow forge]

Uuuuh.....okay, well I appear to have broken something. lol.

Ah well, calling it a day for now, far too tired to carry on.

[karmic hatch]

looks like you might've lerped some colours together but didn't saturate the t variable so the colours go negative/otherwise outside their ranges

[lapis agate]

Hello, I'm trying to use shader graph for the first time and I can't figure out why it's not working. Please let me know if this is the correct place to ask questions like this or if they should be posted somewhere else. Thank you

I'm trying to get shadows working like in this video.
https://www.youtube.com/watch?v=d_OBjV7c1CY

I've installed URP, did the debug thing to enable shadows, downloaded the shader graph and put it in the game, created a material, and placed it on the player. I've tried this in a completely separate project too and it was the same issue. So I'm thinking maybe the video is outdated or I'm just completely missing something obvious

[rare charm]

Is it possible to have different shader variables assigned to each mesh? Say I have a shader with a field Foo, make a material, and assign that material to two separate objects. If I change Foo on one object it changes on both.

[meager pelican]

To clarify, you don't mean "different shader variables" you mean "different values for a variable" right?

OK, there's a couple of ways, but details vary a bit by pipeline. What pipeline are you using?

The easiest way is to make different material instances. So for material "MyMat" you'd have instances MyMat1 and MyMat2, and then you could assign different values for "foo" on each instance.
This gets unwieldy, though, if you need 100 or 1000 instances. So you'd want a different method. You'd want to research "Material Property blocks" in Unity's documentation. This is a GPU instancing method.

URP wants you to make different material instances, as it batches not by material instance but by shader.
BiRP on the other hand wants you to use one material instance and use MPB's.
MPB's may work in URP, but it would require hand-written shaders AFAIK.

[rare charm]

@meager pelican Yeah that's what I meant. I am using URP but I'll look into MPB's and see if they can be shoehorned into what I'm doing. I just don't want to have 100 materials that are different by one small value. Seems very unwieldy.

[snow forge]

Yep, the saturate node being missing was the issue.@karmic hatch Thanks for that. 🙂

[sick knot]

Hi, I have a question about shaders. For a shader whirlpool effect (like https://twitter.com/i/status/1131883139301859329), would it work to add whirlpools on a plane that already has its own water shader? I'm confused on whether or not you can just visually 'overlay' shaders in Unity... if that question makes sense. I'm already using a third-party water shader and it would be nice if a separate whirlpool shader magically allowed me to add whirlpools on top of the water shader i'm already using.

[scarlet pulsar]

Hi. I want to read vertex color and pass it into my custom function of light. BUT main problem i need that vertex color should be in int32 because im using bit operation in my custom function. Is there any solution how to use custom vertex attribute format in shader graph?

[lunar valley]

you cannot really combine shaders, if that is your question, well you can combine shaders in the sense of having seperate objects that use different materials with different shaders and then just put the objects on top of each other, but in your case you will have to do it in one shader

[meager pelican]

Yeah, and MPB's break URP batching, I think. @regal stag knows more, this issue comes up quite often and I can't keep track of the evolution of URP and Shader Graphs...IRL too busy...but we/unity have to come up with a solution that doesn't involve creating 1000 material instances.

Last I knew, Shader Graph doesn't support instancing of a variable except perhaps the BaseColor tining value.

[iron rain]

i wanna change the color per sprite how can i do it ?

[cosmic prairie]

in the sprite renderer's color I'd say

[regal stag]

As Carpe has mentioned, you want to use material instances in URP (with MeshRenderers/SkinnedMeshRenderers at least). MPBs will break the SRP batching compatibility.
Creating those materials in editor may be unwieldy but you can also create them at runtime by accessing Renderer.material (which creates a copy - just be sure to destroy it along with the object in OnDestroy). Should be able to find some tutorials that explain how to use it correctly.

[regal stag]

In most cases you'd need to combine the shaders manually. But there are potentially some tricks that could be used, e.g. :

• using the stencil buffer to cut out a circular portion of the water, and place a separate whirlpool object inside that.
• or could likely render the whirlpools as separate objects, straight after the water with ZTest Always so they still appear above the water plane.
  In these cases the whirlpool would probably be a circular mesh or a quad with alpha cutout (or transparency) rather than having water around it.

[regal stag]

I don't think it's possible to change what type the graph uses. But maybe you can use asint(VertexColor) in the custom function?

[scarlet pulsar]

anyway. reading Vertex Color im doing right using custom interpolator?

[regal stag]

The interpolator is set to Float so only passing the red channel through. I don't know if that's what you intended (so I can't say if it's correct or not)
But if you just use the Vertex Color node (-> Split -> into the custom function) shader graph will handle interpolating for you too. A custom interpolator is more useful when you need to move a calculation to the vertex stage.

[scarlet pulsar]

Okay, I just need pas vertex color (float4) as is into my custom function. Should i still use interpolator (with type float4) ?

[regal stag]

If you need float4/Vector4 in the custom function you can just connect the Vertex Color node directly to it, without using the custom interpolator.
But you'd also need to change the VertexColor input port on the Custom Function to Vector4 as that's also set to Float right now.

[iron rain]

i talk about color and replacedColor

[regal stag]

The message at the bottom suggests a MaterialPropertyBlock is being used (perhaps by the SpriteRenderer internally, idk? I don't do much 2D). If this screenshot was taken during play mode, might be able to change them in edit mode?

Otherwise if a MPB is being used then perhaps you can use a script to change those property values. Something like

public Color replacedColor1;
public Color color1;
public Color replacedColor2;
public Color color2;

void Start(){
    UpdateColors();
}
void OnValidate(){
    UpdateColors();
}

void UpdateColors(){
    MaterialPropertyBlock mpb;
    Renderer renderer = GetComponent<Renderer>();
    renderer.GetPropertyBlock(mpb);
    mpb.SetColor("_ReplacedColor1", replacedColor1);
    mpb.SetColor("_Color1", color1);
    mpb.SetColor("_ReplacedColor2", replacedColor2);
    mpb.SetColor("_Color2", color2);
    renderer.SetPropertyBlock(mpb);
}

Check property names match, it's the "Reference" field in shader graph under the Node Settings not the actual name.

Though you'd need to be careful as this may break the dynamic batching the sprites use (which would affect performance). Can check Frame Debugger.
To keep batching, could try enabling GPU Instancing on material, but may need to move your properties into an instancing buffer inside a custom function rather than using the blackboard. https://www.cyanilux.com/faq/#sg-gpu-instancing

[cobalt totem]

Sorry I know I'm asking a million questions on here, I am trying everything I can think of before asking. I have a parent camera and a child camera, where the child camera uses the depth texture of the parent camera. This works fine, but if I disable the parent camera or gameobject, then re-enable it, the child starts rendering over the parent and seems to ignore the depth texture

[iron rain]

its was not running

[cobalt totem]

Wait.. I just fixed it. I had both tagged as MainCamera, tagging just the parent as MainCamera seems to resolve the issue

Setting the child to Untagged did the trick

Really really happy about this! 😄

[cosmic prairie]

something made it use material property blocks

locate the script and change the values there

also why do people use replaceColor like it's some magical thing

a colormask would be way better for changing the crewmate color

[regal stag]

I imagine due to a lack of good tutorials, or at least ones that use Replace Color are more searchable/easier to find 🤔

[cosmic prairie]

I guess so... 🤔

[regal stag]

I know MinionsArt has a good one https://www.youtube.com/watch?v=4dAGUxvsD24

[cosmic prairie]

By the way, I doubt that it was the spriterenderer that reset the block, sprite color is stored in vertex color irc

I'll check on it to make sure when my laptop boots

[regal stag]

Typically it's vertex colour yeah, but in this case they're using custom color properties on the material, not the SpriteRenderer.color.

Though I think sprites can also use GPU Instancing, in which case it would be using an instanced property (_RendererColor?) rather than vertex colours, since the mesh needs to be the same for each instance

[cosmic prairie]

Okay, so I checked it, a PropertyBlock is used with the spriterenderer, but it does not override custom variables, so he should still be able to edit them

[valid island]

Hello, I was wondering if someone could point me in the right direction to creating a shader that would have a similar effect to this, where the edges of the surface would be a second texture

[cosmic prairie]

hmm, how would you define edge in your usecase?

[regal stag]

That's what I thought too, though it looks like the material is greyed out for them 🤷

[cosmic prairie]

(is it a change in steepness of the model, or something that you define manually?)

[regal stag]

Usually this would just be handled with UV mapping

(That assumes the ground is meshes, not unity's terrain though)

[valid island]

So there's no way of just doing it automatically with a shader?

The edge in my usecase is similar to this, on a mesh

[cosmic prairie]

You could do something similar, but the visual quality of it won't be as good as if you had defined them manually on the UV map from a texture

[valid island]

If it has to be done with uv mapping then that's fine, I just assumed it would be possible by doing some trickery with an outline or something

Yeah that's fine

It doesn't need to be great

Could you point me in the direction to accomplish that?

I'm not entirely sure what I'd use for it

[cosmic prairie]

I'll try to come up with something similar, gimme a few minutes

[regal stag]

In the past I've done some experiments to handle this kind of thing automatically.
Using normal vector to blend between textures. Can use triplanar mapping if no mesh uvs are available, but that is more expensive.
For the transition (grass edge), can combine normal with noise projected from above (sampled using worldPos.xz)
But manual uv mapping + texture would give you more freedom.

[valid island]

I see thank you

[cosmic prairie]

yeah that's the kind I wanted to make too, ofc you can still have different textures for the grass & stone

and it could use a bit of shadow when the grass transitions to stone

[dull hornet]

If i want to change the color value of Color_Skin how would I do that my current code is playerVisual.SetColor("Color_Skin", Color.red); but it doesn't work

[regal stag]

Yeah would be interesting to have that "shadow" use the same grass-transition but offset using the light direction maybe?

Perhaps even with a parallax effect to make it look less flat.
Though not sure if these would be possible with the method I used. Might need to play around with this 🤔

[regal stag]

You may need to check the shader code to see what the property is named. Possibly _Color_Skin instead?

[dull hornet]

it worked cheers

[wide quartz]

can someone help me please?
I want to have a rotated line from my texture 2D... like you see the red line that I drew?? I want to know how to make such a line..

[regal stag]

There's a Rotate node you can use on the Tiling And Offset (or UV node) output.
That would then go into the UV port on the Rounded Rectangle.

Though there's also other methods to draw a line like this, that may end up being cheaper. e.g. could try converting the sdSegment function from https://iquilezles.org/articles/distfunctions2d/ into hlsl or nodes (then step/smoothstep)

[wide quartz]

I tried using the rotatenode.. it didn't help at all

[regal stag]

How are you using it?

[wide quartz]

and I also tried to feed it into the UV and then into the rotate.. still no

[regal stag]

You need to do it in the other order. You rotate the coordinates that go into the UV port on the Rounded Rectangle.

[wide quartz]

OOOOOOOOH

THANK YOU

if I may ask another question how do I move it up... I am now trying to move it up

OK FIGURED

[regal stag]

The Offset input on the Tiling And Offset port should help with that. Or can use an Add node.

[wide quartz]

now I am seeing things differently

thank you @regal stag 😄 i am learning as i am doing things !

[cosmic prairie]

That's what I came up with @valid island

It's all triplanar tho and kindof expensive

[regal stag]

Nice 👍

[cosmic prairie]

But this is pretty much what you can achieve

[valid island]

Oh wow, thanks lol
I wasn't asking for someone to make it for me, but I appreciate it nonetheless

[valid island]

It looks really nice

[cosmic prairie]

I took it as a challenge 😄

It also uses 2 power nodes besides the triplanar sampling, could maybe use a lookup texture for that

[valid island]

It's impressiveeee

[cosmic prairie]

Meh, if someone has time to either manually create the transition or create a script that procedurally does it, it could look way better 😄 and a lot less computationally heavy

[snow forge]

You could (I think) add an LOD node to whatever you're using as a blending mask? Not perfect, but should let you blur the mask a bit (not looked at the graph so not sure how you're doing it)

[sinful magnet]

Hey guys, is there any way to automatically expose the values of a shader graph used in a VFX graph without creating those properties in the VFX graph itself?

[snow forge]

Would anyone have any idea what this error means? 😕

I've got a graph as a subgraph (to create a normal map from the normals of the seperate texture files). The albedo subgraph works fine. The Normals subgraph (seperate SubGraph with image type set as normal) craps out with this error when I attach it to the normal Input of the fragment shader.

[regal stag]

https://www.cyanilux.com/faq/#samplers

[snow forge]

Aaaah, interesting

Thanks 🙂

[turbid perch]

does anyone have an idea on how you might recreate the sokpop "joepie" shader (https://youtu.be/XatLA5SGgAs) in shadergraph? im currently just displacing the vertex posions on a timer, which kinda works for some meshes, but on cubes for example theres very visible seams where two faces split apart - as you can see in the video they dont seem to have this problem. heres a pastebin (https://pastebin.com/LZk9RHty) for the original script, which unfortunately doesnt work in URP

(skip to 1:40)

to clarify the unlit effect is of course super simple - im just running into problems with the wobble aspect of it

[vital lily]

How do i fix this? I'm going for a old school game with pointy graphics and i have dark terrain cuz the game occurs in the night,but i have this happening. How do i fix it?

I think this is a shader problem.

I have been trying for like what the past 2 hours trying to search for this but i cant get what exactly this is

[turbid perch]

its kinda hard to make out in the pics but does it look like that old windows error effect ( https://youtu.be/YnP94m5pwls )? where duplicates of what was just rendered keeps being made

[turbid perch]

.

[vital lily]

True,that's what came up in my head too.

[turbid perch]

can you take a pic of the material youre using as your skybox?

[vital lily]

Solid black

Solid color,watched a tutorial how to make dark environments

went to settings enivorment and bla bla

[turbid perch]

the material might not be set up properly to handle being a skybox - i would create a new material to test

specifically like this

you can also just drag the material onto the sky - no need to go into settings or anything lol

[regal stag]

If you're displacing vertices using noise you'd need to make sure the same coordinates are used when sampling. If it's based on mesh UVs for example those may be different for each face, (so sampling different areas of the noise, hence it splits apart)

In that original shader, you can see that they are using a Sine to handle the displacement.

v.vertex.x += sin(v.vertex.y * _YDiv + round(_Time.y * _TimeInfluence)) * _NormalOffset;
v.vertex.y += sin(v.vertex.x * _YDiv + round(_Time.y * _TimeInfluence)) * _NormalOffset;
v.vertex.z += sin(v.vertex.y * _YDiv + round(_Time.y * _TimeInfluence)) * _NormalOffset;

v.vertex here is the Position node in Object space. You'd need to Split and reconnect into a Vector3 or use a Swizzle node to reorder the components as "yxy" (or "grg")

[turbid perch]

oo thanks! that sounds very complicated and very interesting lol

ive only recently started to get into shadergraph and its honestly such a cool piece of tech

[vital lily]

Do i make it like normal material?

Or set it to skybox mobile

[turbid perch]

ill try put that together in shadergraph now!

again ty

[vital lily]

Do i change the camera?

[turbid perch]

idk - is it fixed?

[vital lily]

let me test

Its fixed,tysm dude

[turbid perch]

nice! im happy to be the one answering for once lol

[regal stag]

I imagine as a skybox wasn't assigned it was using the Background colour there instead, which has 0 alpha as shown by the black bar. Setting it to (0,0,0,1) should also fix it, but assigning a proper skybox is probably better 👍

[sullen fox]

I am completly lost on this shader. I am making a wave to a plane using sine waves. But my wavelenght is making the whole wave weird(see picture) It is only making a good result if i put 6.28 as the wavelenght value

amplitude set to 1 and wavelenght 10

Right i changed a value, in the sine wave node i changedes the x from 0.5 to a smaller number and that solved it but i dont understand why

[karmic hatch]

you want the separation between vertices in your mesh to be smaller than the wavelength/2, probably even smaller than the wavelength/4. If the separation is > wavelength/2, you get aliasing effects which basically just make it look identical to a wave with a (well-chosen) longer wavelength. If the separation is very close to the wavelength/2, neighbouring vertices will be in antiphase (so one will be up, the next will be down, and so on).

[meager pelican]

@rare charm This post ^^ that @regal stag put together might work for your issue if you have 1000 instances of a material that you'd need to create....you could instead use what Cyan is talking about here...GPU instancing working in URP with shader graph. If I read him right.

BUT...IDK about what properties you can and cannot use on the blackboard. I get that the instanced property would NOT be on the blackboard. But IDK about other material properties, I was unclear on that. I would assume that if they are the same properties across all the instances that use a material, that it would be OK, and that only the instanced-property need be in the "hacky" property block being forced into SG. And of course you'd need to use DrawProcedural or DrawProceduralIndirect.

BTW, @regal stag , nice blog post. 🙂

[rich seal]

Hey guys, i have some experience with scripting shaders in unreal, but was curious if i can just use my simple shader in unity as well, but i get this error now (works fine in unreal so i think the script is ok).

/* Simple Toon Outline Shader for Unity
 * made by [---], CC-0
*/

// Calculate the angle between Camera and VertexNormal with some additional properties to manipulate the masked range
if (step(StepCount, cos(2 * PI * Period * (dot(VertexNormal, normalize(CameraPosition - Position))))))
{
    // Add additional functionalities here

    return (OutlineColor);  // RBGA Color for the Outline
}
return (FillColor);```

I use URP Lit Shader Graph

[regal stag]

Custom functions can't use return, it instead uses output parameters. In this case you have a Float output named New, though I imagine you'd want to change this to a Vector4, perhaps named Out. You can then change the code to use Out = OutlineColor; and Out = FillColor;

[rich seal]

Ah okey thanks. I will change that.

[regal stag]

Also unsure if you'll be able to use if (step(StepCount, ...)) as steps returns a float, not a bool. Might be able to cast or use if (StepCount >= ...). Perhaps even specify [Flatten] before that so it doesn't create a branch.

[rich seal]

yea, looks like i have to make some little adjustments. Thank you for the informations, this definitely helps me.

[thorn rover]

anyone know where to find the "Property Sheet" ?

its making my shader appear pink instead of the effect i added to it

[dense flare]

can anyone help me with a water line shader i made in urp shader graph? And if possible dose anyone know anyother implementations of a waterline shader in urp?https://streamable.com/pw0gqx

this is the video i follwed
https://www.youtube.com/watch?v=4eTC-b0Lolk&t=2280s

[novel garden]

Can anyone tell me why i can do something like Cull [_Cull] in my shader to make culling mode a variable, but i cant do same with Lighting parameter?

[karmic hatch]

I remember someone ages ago asking something similar; draw the water effect where a point on the near plane is in the water. So take camera position, add* view direction times near plane distance, now check if that is below water level (based on the height) then go from there.

*Could very well be subtract; not good with signs.

[dense flare]

ok thank you!

[karmic hatch]

here

[dense flare]

THANK YOU

ive been trying to find ways to do this for like 3hours

[scarlet pulsar]

Does Shader graph has concept of executing on vertex shader or fragment like in classic approach? I have function which should execute in vertex shader and then pass data into fragment. Should i pass data through custom interpolator?

[lunar valley]

In shader graf you do not really pass things over from a vertex to a fragment shader, you have it all in one place anyway

[dense flare]

unfortunately it doesnt work

[dense flare]

it dose switch between the scene color and the fog color but it doesnt cutoff

is it because im using a blit feature?

[meager pelican]

Yes.
That's why there are two "stages" to shader graph. The Vertex inputs and the Fragment inputs. At least there are if you're using a fairly recent version.

Custom interpolators are used to pass values from vert to frag in shader graph (SG). SG will create a v2f type of structure internally. So some things like SV_Position and such are "automatic" as it can tell if it needs them from what you design. But if you need to pass a custom value from a calc in your vert() logic, that's where the custom interpolator comes in.

It's basically creating a member variable in the internal v2f that SG uses between vert and frag. Just make sure that the "connections" you make between nodes for your calc are all going in the vertex side so that "branch" of logic in the logic tree is in the vert() function and sets the value of the custom interpolator that you created in the vertex master stack. Don't try to drag frag() side stuff into the calc for that vertex() side stuff. Pretty sure SG enforces this and won't let you connect frag stuff to vert stuff. Also see limits and warnings here:
https://docs.unity3d.com/Packages/com.unity.shadergraph@13.1/manual/Custom-Interpolators.html
Note that some nodes aren't available on the vert side, but that probably won't be a problem for you as it sounds like you're converting existing working code that is designed for a vert() stage. Things that use ddx/ddy are not available in the vertex stage because rasterization hasn't been done yet. LOD levels and MIP maps come to mind, as well as the ddx/ddy functionality.

[dense flare]

ok i think i might need to use unity 2023 to make it work.

[karmic hatch]

I don't think so, you should be able to slightly modify what you already have and get it working

You already have something that cuts the water effect so it's only in the bottom half

So you just need to modify it so the position of the cutoff is slightly different

[dense flare]

yeah but it doesnt really change the clipping when i look up or down

[karmic hatch]

Can you post a pic of your current graph

[dense flare]

ok hold on

[dense flare]

here is the one that doesnt cutoff and just swithes colors

and this is the one that cutsoff but doesnt change when rotating the camera

[karmic hatch]

can you post a bigger image; i can't read the text

[dense flare]

oh sorry

[dense flare]

here

[karmic hatch]

thx

[dense flare]

so?

[karmic hatch]

i am opening up unity, will try to make something myself and hopefully it will work

[dense flare]

ok

[dense flare]

im also using the blit feature for urp btw

[karmic hatch]

Haven't used it before, I'm assuming the camera for that would be the same as the world camera so it should work the same

[dense flare]

i think

[dense flare]

this is the code if you dont have it

[karmic hatch]

this works and tracks where the water is cut off by the near plane; i think (except for swapping negate -> step (In) for step (Edge), which are equivalent if the other argument is 0), it is identical to before

[karmic hatch]

the clipping should follow the position of the water on the screen; where it gets cut off by the near plane

[dense flare]

huh? what you mean?

[karmic hatch]

the water is some plane, where it gets too close to the camera, it stops being rendered (where it intersects with the camera's near plane) and so the shader calculates which parts of the screen are below or above that intersection line

[dense flare]

Soo is it possible for this to wrok with waves?

Work*

[dense flare]

Also thanks

It works

But all i need now is for the clipping to follow with the waves

So i gotta digure that out

Figure*

[karmic hatch]

If you can calculate where the waves should be, yes. But that unfortunately sounds hard

[dense flare]

Its prolly harder for my case since im using gerstner waves in a for loop

[dense flare]

But cant i use the depth of my camera?

To like add

To the clipping

?

Or no

Cus like i saw it on the unreal engine tutorial

[karmic hatch]

Maybe, i'll see the tutorial

[dense flare]

this is the video i follwed
https://www.youtube.com/watch?v=4eTC-b0Lolk&t=2280s

[dense flare]

Its around the end

Like 40minsnin the video

[karmic hatch]

It looks like there they're using just a plane for the water, with no waves?

(aside from a normal map)

[dense flare]

But it does move

[karmic hatch]

They're scrolling normal maps across rather than doing any sort of vertex manipulation

[dense flare]

Its moving up and down tho

[dense flare]

You can see the final result in the end

[karmic hatch]

True; they could be using a vertex displacement of sine(time*frequency) and then copying that over to the cutoff part, or they could be moving the mesh with a script and having that script write to a water height property

But it doesn't look like it's position-dependent which is the part that would make it messy

[dense flare]

I mean it uses the scene depth for the up and down movement of the ocean

But idont know how well that will translate to shader graph

Im also not on my pc so i cant test it now

[still orbit]

Hey, can anyone here give me some pointers on something procedural? Basically just like the procedural rectangle node in shadergraph, but with a linear gradient out to UV edge. Either of the two outputs pictured are acceptable. Grid lines represent the width/height parameters (pictured would be 4,4).

Either shader graph or code examples are very much appreciated!

[regal stag]

IQs blog is the first place I go for procedural stuff like this : https://iquilezles.org/articles/distfunctions2d/
The box or rounded box could give you results like this, e.g.

[ionic brook]

but going so far as copying the whole scene seems quite bad for performance, storage and such things.

[still orbit]

Thanks mate. I figured out my exact use case from there 👍

[prime shale]

Preload shaders

[dense flare]

How do you make your waterline effect?

[still orbit]

Im going to assume you mean depth intersection?

[dense flare]

I guess yeah

[still orbit]

Basic example here
https://gist.github.com/andrewgotow/cebb2e9eb772ca9e79fec1c7699bfe88

LinearEyeDepth from the depth texture for the depth of the previous fragment. screenpos.z for the current drawing one

[dense flare]

I mean yes but also no

I dont knwo how to check if the camera is above or underwater in shadergraph

[dense flare]

Th waterline in mu case is screen space and idk if that could work and im also using shadergraph

[still orbit]

Ah okay, as in a semi submerged camera

[dense flare]

I know how to translate shader code to shader graph so it isnt a problem

[dense flare]

Yee

[dense flare]

Like half of the camera has underwater effect while the top part of the camera is nirmal

Normal*

Like how? https://twitter.com/Cyanilux/status/1603002248463876098?s=20&t=oI7bfYGxJh6jLlxrMm1Xhg

Cyan ✨ (@Cyanilux)

Not perfect, but wanted to have a go at a waterline effect to add to my latest stylised ocean shader~🌊
#TechnicallyAChallenge - Underwater
#unity3D #madewithunity #shaders

Likes

1163

Retweets

121

▶ Play video

Twitter · Dec 14, 2022, 12:21 PM

[dense flare]

Yeah! Do you know how?

[karmic hatch]

inigo quilez is an absolute god

[still orbit]

Ive never done it myself, but I would imagine you calculate the water in clip space in a post process

[dense flare]

I meannnnnnnn maybe?

[still orbit]

Ill let Cyan respond, Im just guessing and only responding because I misunderstood the question 🙂

[regal stag]

I used a similar technique to the one described in this twitter thread, https://twitter.com/_staggart_/status/1411339746828226561
In short, using a C# script to generate a subdivided plane at camera near(ish) plane, using shader that roughly matching the water displacement.
They render this to a separate small res buffer and use it for post-process, but I just render that mesh itself, with a shader that reconstructs world pos from depth buffer to add fog/caustics/etc.

Staggart Creations (@_staggart_)

Some background on how I'm rendering the water line, because it's almost arcane 🪄 #unity3d

The key goal is figuring out if a certain pixel on the screen is above, or below water. This in turn can be used to apply effects to a specific part of the screen.

Likes

832

Retweets

147

Twitter · Jul 3, 2021, 3:03 PM

[smoky flume]

I'm studying shaders more in depth.

1. Are projects mostly made with SRP nowadays or still built-in rendering pipeline?
2. If in SRP, do most people use the visual node graph tool or mainly just stick to the shader source files

[lunar valley]

yes

[karmic hatch]

that's pretty cool

[gusty horizon]

1. SRP - built-in is the oldest pipeline and AFAIK not receiving any more support
2. Whichever you prefer. Lots of people have success with ShaderGraph, others say its not worth learning

[cobalt totem]

I've tried using Graphics.Blit(source, destination, _customMat) but it just results in a solid colour being output?

public class CameraVHSToggle : MonoBehaviour
{
    public RenderTexture _VHSRT;
    private Camera cam;
    [SerializeField] private Material _VHSMat;

    private void Start()
    {
        OnEnable();
    }

    private void OnEnable()
    {
        if (cam == null)
            cam = GetComponent<Camera>();
    }

    private void OnPreRender()
    {
        cam.targetTexture = _VHSRT;
    }

    private void OnRenderImage(RenderTexture source, RenderTexture destination)
    {
        Graphics.Blit(source, destination, _VHSMat);
    }

    private void OnPostRender()
    {
        cam.targetTexture = null;
    }
}

_VHSMat uses a shadergraph shader

[regal stag]

You'll likely want to specify the pass index, as shadergraph will generate other passes than the main forward one. Try Graphics.Blit(source, destination, _VHSMat, 0);
I also assume this is Built-in RP as you're using OnRenderImage

[cobalt totem]

Thank you, I've given it a go but it looks like there are other issues, I'm going to rewrite my VHS effect shader as a "real" shader as well

[subtle cove]

Hey, does anybody know how to make a shader with a 2d texture as input, that simply project that texture on the material but is based on the camera direction, position, etc. (Like in Valorant)? (And if possible for URP?)

(So that no matter where the camera is or how it's rotated, the texture looks the same and like 3 dimensional)

[snow forge]

Bit of a random one, but is/has anyone had any trouble with the URP Lit shader recently?

All of a sudden when making a build it's started to crap out on me (this is the default URP lit shader, no changes etc.)

And afterwards the shader disappears from the list, restart Unity and URP is completely broken (Package cannot be found).

[thorn rover]

I literally just opened this why is i already pink dude how do i fix this

[static shore]

What sort of shader would I need to use to achieve the flat look that these environments have?

If it’s something other than shaders used to create this look, I’d love to know what

[subtle thicket]

At what point do you need to start being concerned about shader performance? In an otherwise pretty non-demanding game in which there could potentially be ~20 max instances of the shader running.

Asking because I'm doing the outline shader hack where you sample four copies of an animated sprite and translate them in all four directions to make an outline

[subtle thicket]

Hm well if I'm reading the profiler correctly, I guess shaders have very little impact on performance

[uneven fox]

It seems to me this shader is just using diffuse shading without normal maps, plus they probably used lightmaps. The easiest way to achieve that in Unity is to use builtin PBR shader and set all material roughness to 1. In URP, you can manually turn off specular hightlights, which would save you a few more instruction.

[uneven fox]

Samping typically impacts mobile gpus and integrated gpus

[subtle thicket]

Samping?

[uneven fox]

yes Sampling

It's probably not a big deal, just test your game on real device and see where it goes

[hollow wolf]

hi, did anyone know how to fix this (texture not seamless in cylinder and sphere)

nvm, i fix it (instead 2d text, i use triplanar instead)

[lone dagger]

There must be some irony in that compiling shaders for a build is run entirely on the CPU and its really slow

[median timber]

hey why is my thing purple whenever i make it fresh its purple but all the tutorials im following dont have this issure help?

[lone dagger]

Are you using URP?
if you are using HRDP or SRP the URP Shader graph will show pink instead of the correct oclor

[proven sail]

This is just a blank 'lit' shader that I just created, why is Unity messing with the geometry and the position?

[median timber]

yeah im using urp. is there any way to fix it or is it intended?

[lone dagger]

do any of your other non SG shaders have issues?

[median timber]

no

[lone dagger]

does the object have a weird scale or in a parent with a werid scale?

not sure then.
You clicked run and it shows pink? and this is a new project setup with URP?

[median timber]

oh my god it was in the stuff i deleted

:(

[proven sail]

Nope. Scale is 1 on every axis.

moving it around doesn't move the giant version either

it seems independent

[lone dagger]

is it a sprite?

[proven sail]

I've tried across several unity versions, reinstalled the shader graph several times, etc

no

[lone dagger]

so it is a mesh.
if you change meshes does this happen?

[proven sail]

similar/same issue no matter which mesh it's applied to

it's a shader thing

and any shader I make with the shader editor, even if it's just the default and I change nothing, throws a bunch of errors.

[lone dagger]

does the scaling issue also happen with default shaders?

it looks like there is some invalid transformation of the object's Matrix. Does it always stay at the origin point?

[proven sail]

nope

just shadergraph ones

[proven sail]

yep.

Never really worked with shaders before so I'm a bit lost here. Shadergraph hasn't had these issues before either.

[lone dagger]

is your Shadergraph shader touching the Vertex properties?
messing with those can cause matrix issues.

[proven sail]

nope

It's just the default Lit shadergraph with a texture in the base color slot

considering switching to Amplify

I've heard good things

[meager pelican]

Using SG in BiRP is kind of a "new" thing.
The errors/warnings you showed were related to instancing.
Try turning off GPU Instancing on the material, just a wild shot in the dark.
Also check the material in the inspector for other issues. Otherwise might be a bug in SG version.
If you switch the material to use the standard shader, does it fix the problem?

[proven sail]

I could use the standard material, but I want to add things like vertex displacement and subsurface scattering

so I needed something with a bit more customization

Amplify worked fine

[meager pelican]

I get that, it was just a debug action to test.

[proven sail]

I can check

[meager pelican]

Cool

[proven sail]

I'll switch it back

[meager pelican]

You've got alpha clipping now too. 🙂

[proven sail]

Indeed, I didn't get that far with the shader graph

just created a default shader and it started freaking out so I had to pause for a bit

[meager pelican]

lol

[proven sail]

I don't see an option for GPU instancing in the shader graph, where is that?

usually it's just on the material for the built-in unity ones

[meager pelican]

It's on the material, set in the inspector.

[proven sail]

maybe I'm missing something

but I aint seeing it

[meager pelican]

huh, OK. My bad I guess.
The shader has to support instancing for it to show up, so maybe BiRP generated with SG don't? IDK

Maybe that's why there's warnings.
Are you on the latest version of SG?

I use surface shaders in BiRP, not SG.

[proven sail]

yes

And I tried SRP and URP, both had the same issue

[meager pelican]

Wow. That shouldn't be. I'm at a loss.

PS URP is an SRP.

SRP isn't a thing in itself. It's a category.

Perhaps you mean HDRP?

I'm at a loss, I'd put that SG shader on a basic quad and see what it does.

[sick knot]

Hi, does anyone know how you'd use stencil buffers to hide everything above an intersection point? https://i.imgur.com/KwYAOig.gif Right now I have 2 planes intersecting, and I want the vertical plane to only render below the 'waves' of the horizontal plane.
or an alternative way to achieve the effect of creating color beneath a plane with moving waves? I've tried a few things but keep getting stuck.

[grizzled bolt]

There was a discussion about a similar thing yesterday in case you missed it
<#archived-shaders message>

[dense flare]

do you know how i could add a sin wave to the fog split thing you made for me yesterday?

[karmic hatch]

the height (or minus the height) goes into the other input in the Step node

[dense flare]

subtract the negate by a sine wave?

[karmic hatch]

in the step node, in the other input, put in e.g. (amplitude*sine(time*frequency))

[dense flare]

ohh ok

[dense flare]

ok nvm its just giving me epilepsy

[quaint coyote]

Hello everyone! Can someone guide me/refer links on some good reads about lighting in games? Something that describes if a lighting buffer is used and other computations?

[dense flare]

oh carp nvm i got it to work i just forgot to put the x value of screen position

[dense flare]

will you EVER.. make a break down for this?

if not its fine i just wanna ask

[dense flare]

can you help me please? whats going onnn! https://streamable.com/gd4di9

here is a better angle. https://streamable.com/8cmkh0

[karmic hatch]

need to add/remove a negate somewhere, looks like

[dense flare]

its still the same because thats what i did at first but somewhere else

[dense flare]

https://streamable.com/9kjjcc

[karmic hatch]

try swapping the inputs for the step

[dense flare]

?

[dense flare]

?

[karmic hatch]

try putting the property into the top slot and the thing from the add into the bottom slot; at 0:46 it looks almost there and you just need to flip which side the water is on i think

[dense flare]

.-.

[dense flare]

property as in the waves?

orrrr

the edge?

nvm

[karmic hatch]

Which part says how high the waves go?

[dense flare]

idk what you mean

[karmic hatch]

here your shader knows what height to go to

[dense flare]

the split node?

[karmic hatch]

however it calculates the height at some position

so in the shader when it was flat, it was just 0 in the other side of the step, now put your height [or perhaps minus the height] into that slot instead

[dense flare]

of the step node?

here is the code for the gerstner waves if its even relivant to the problem

@karmic hatch

[karmic hatch]

yes

[dense flare]

ok

it works

but

its flat

no more wavese

its broken if i negate the value

[karmic hatch]

in the version where it was flat, the Add node just before the Step has the position of the points on the near plane; calculate the height of the waves from that, and then plug that into the other side of the step

[dense flare]

this adds the waves but it still moves:(

[dense flare]

the heck is that?

[dense flare]

and how

[karmic hatch]

green is the wave height (plug in whatever wave height you want), blue is the color i've set it to; the output of the step is just 0 on one side and 1 on the other

[karmic hatch]

the quad has the shader applied, then i put two planes with a wave in their vertex shader. Where they're cut off is the near plane of the camera.

[dense flare]

soo basically i can use the quad instead of the blit feature?

[karmic hatch]

i'm sure the blit feature makes it more convenient to follow the camera and stuff; I'm just using a quad because it's a mockup for test purposes and i didn't want to set up anything complicated

[dense flare]

ok ok

it works on the blit feature

but

the waves change depending on the camera rotation

[karmic hatch]

depending on camera rotation the near plane could intersect with different parts of the waves

two images with the same camera position, just different angles

[dense flare]

yea thats my problem

[dense flare]

Ill still use the quad method instead for better accuracy for the waves

[dense flare]

Hey cyan! How do you get the cutoff to work with the waves? So it wont ahow the waves when your above the water.

[dense flare]

Oh wait what do you mean by render this to a separate small res buffer. Whats a small res buffer?

[sick knot]

if you ever figure this (seamless wavy waterline rendering) out can you do a tutorial lol. wondering the same, it's very difficult.