meager pelican
But you're using URP. That's not well documented. You should probably use Shader Graph rather than writing the shader yourself.
However there's overlap with
https://docs.unity3d.com/Manual/SL-Reference.html
But that's not the same thing, that's the standard pipeline. (Are you sure you're using URP?)
Pastebin code
fair sleet
I'm so confused...
URP doesn't support Depth + Normal Textures
yet
This built-in render feature uses them
meager pelican
IDK
odd dagger
I tried using shader graph but I wasn't able to do additive blending with it. I heard there was a way to access the code but it wouldn't let me
I forget what error it gave
And yeah I am using URP because I made an attempt at shader graph but then stopped because of above
meager pelican
Pastebin code
regal stag
I'm so confused...
URP doesn't support Depth + Normal Textures
Yeah, it does support a normals texture using the DepthNormals shader pass. The "Not supported" in that list is likely just left over from previous versions before SSAO was implemented.
odd dagger
meager pelican
@odd dagger
Get rid of the "{}" on line 6
Add line 34
float4 _Color;
fair sleet
Yeah, it does support a normals texture using the DepthNormals shader pass. The ...
oh it does?
I was just looking in the render feature code because I wanted to make my own pass for making DepthNormals. This should save me quite a bit of time
Your Blit render feature and tutorials are awesome btw 
odd dagger
Did that. This error still persists
meager pelican
IDK.
That doesn't look like a URP shader to me.
meager pelican
You should be able to get shader graph working.
odd dagger
But from what I remember there was no way to get additive blending on shader graph
But iirc someone on here told me some time back during another problem that you could include additive blending by accessing the code of the Sprite Lit Master node
regal stag
oh it does?
I was just looking in the render feature code because I wanted to ma...
Yeah, should be _CameraNormalsTexture, it requires a renderer feature (well ScriptableRenderPass to call ConfigureInput(ScriptableRenderPassInput.Normal);) for it to be created. The SSAO feature is one that already does that.
It only contains objects if their shader contains a DepthNormals pass though. I think only Lit shaders include this so anything unlit (including Unlit Shader Graphs) won't appear in the texture, (and so, for example, won't contribute to SSAO). I've also used this before to render unlit objects into the texture after it's created : https://gist.github.com/Cyanilux/be5a796cf6ddb20f20a586b94be93f2b (but that won't work for shaders if they need alpha clipping or vertex displacement).
fair sleet
I see
I think I won't use the unlit shader in my project so I should be fine but if I do use it I could make my own DepthNormals pass by overriding every material and rendering
Thanks for the help!
odd dagger
Right this is the error I come across when I try to access generated code from the Sprite Lit master
meager pelican
My other sandbox has an old version of unity/SG/URP. I have to make a new project, so give it a few minutes.
@odd daggerI forgot to ask if you were 3D or 2D project
And what version you're using on what unity
meager pelican
OK, I just made the wrong one. lol So I won't be able to tell the diff.
Will take a bit.
Yeah, it doesn't look like transparent blend modes are available for sprites.
And even for plain lit:
No subtract. Although you might be able to add negative color values.
The other thing is that last I knew the SceneColor node didn't work in 2D. @regal stag might know more, if it has been fixed or not.
But otherwise you could blend manually if you can get hold of the back buffer.
regal stag
Haven't used 2D renderer in a while but I think Scene Color is still not supported. It is a bit annoying that blend modes can't be changed for sprites
meager pelican
In standard it would be easier.
But in URP, you'll probably want to sick with the Shader Graph, and thus, not right now I guess.
grand jolt
@meager pelican bug report submitted
I hope that the problem stops haunting me soon ;-;
meager pelican
I'm exuding optimism as I type!
hearty wasp
Hey guys! I'm trying to make this mask-based sun for my skybox UVs, and it kiiiiinda works? 😅
Here's with a test texture so it's more clear what's going on
I think I basically just need a way to project the texture and keep it as in tact as possible, I tried a few different things already - right now it's based off Cyan's skybox uv method
which is this
yeah, if anyone has any ideas or can point me in the right direction, I'm open for suggestions!
lean lotus
is there a way in a compute shader to have each thread of a compute shader able to increment a global counter that I can then get out of the shader?
meager pelican
is there a way in a compute shader to have each thread of a compute shader able ...
Yes it is called atomics/locking. But beware, since all cores share a program counter (current instruction address), if most but not all of them are trying to increment at once is going to slow things down, as I understand it.
https://stackoverflow.com/questions/65233108/interlockedadd-hlsl-potential-optimization
lean lotus
ok thx
exotic garden
These two variables should never be different values right? I'm getting different behaviour depending on which one I use. I can swap out the return _rangeIncrement * i using rangeIncrement with no underscore and my shader messes up. Why would these two be different.
NUM_COLORS is a #define NUM_COLORS 5 which is assigned at compile time so that shouldn't be a problem.
The local float works fine, but I would like to use this value elsewhere. But the global float isn't being assigned the value, it has the value of 0
meager pelican
IDK.
But you could try static const float ....
if that doesn't work you can use a macro #define instead. Wrap it in some parens and let it substitute it into the expression.
meager pelican
@lean lotus Forgot to mention "groupshared" modifier.
https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-variable-syntax
lean lotus
ok
lean lotus
I remember looking at those, ill have to look again cuz the main thing I took away was them storing the scene data in global memory, but mines too large
misty flame
How do I add custom nodes for shader graph that are .cs written in c#? I just assumed I'd put them in my project but searching for the node when I press space or dragging the actual file in doesn't work.
This is the one I'm trying to get https://github.com/hwaet/shadergraphnodes
meager pelican
This is the one I'm trying to get https://github.com/hwaet/shadergraphnodes
Well, it will still have to be HLSL, but there could be a custom node API to make them. I mean, for graph functionality. But the code they generate would be HLSL.
IIRC they used to have a C# interface but IDK if it is still active. (doesn't look like it)
https://docs.unity3d.com/Packages/com.unity.shadergraph@5.7/manual/Custom-Nodes-With-CodeFunctionNode.html
They do have custom function nodes:
https://docs.unity3d.com/Packages/com.unity.shadergraph@11.0/manual/Custom-Function-Node.html
sleek mural
Is it possible to create a shader using the Shader Graph that works inside a Canvas? I am specifically using Screen Space - Overlay. Every shader that I try to add to an UI component that I created using the Shader Graph makes the component disappear on play.
blissful lynx
anyone have any experience by chance rendering motion vectors using MRT?
or even just having a motion vector pass that is using forward instead of deferred rendering, and without having to also have a depth pass?
alpine blaze
I'm trying to fix a shader so that it successfully compiles a GLSL version (so that i can use the unity editor on linux). Keep getting errors along the lines of GLSL link error: error: tessellation evaluation shader output 'ds_PID0' specifies no interpolation qualifier, but geometry shader input specifies flat interpolation qualifier
the struct carrying information between the domain shader (read, tessellation evaulation shader) and the geometry shader looks like this: ```c
struct DS_OUT {
// discrete vertex ID used to color the output, starting from the beacon (targetPos)
uint pid : PID; // GeometryShaderに実行用の一意連続なIDを発行する
// note: w is -1 or -2 on error
float4 centerPos : POSITION;
float4 quad_normal : QUAD_NORMAL;
};
(pid seems to be the field it is currently complaining about)domain shader is defined as: ```c
[domain("isoline")]
DS_OUT mainDS(CONSTANT_HS_OUT In, float2 uv : SV_DomainLocation) {
// <snip>
}
geometry shader is defined as: ```c
[maxvertexcount(14)]
void mainGS(line DS_OUT input[2], inout TriangleStream<GS_OUT> outStream) {
// <snip>
}
I'm not sure where you're going with this. But I'm intrigued and so I thought I'd ramble:
As I'm sure you already know, Unity has motion vectors in standard and HDRP. URP is in the works now. But you'll likely want to use their methodology as it is integrated into the engine, IIUC. So they "cull" on the C++ side those objects that don't have settings activated for motion vect (you get camera motion at those locations).
As for depth buffer writes, generally if you write the depth buffer, you write the motion vector. But if you don't, you don't. Think transparent objects (window) and a car flying by on the road outside. You don't want the window's motion vector, you want the car's motion vector. But they have an option already integrated that let's you write motion vectors for transparent (at least they do in HDRP) if you wish to.
You want to do it in the same pass? Using MRT? Trying to save draw calls? Is that what I'm reading? So you'd pass two transforms in and use MRT to write the per-object motion vectors? I think you're fighting the engine if you do that. You may end up having to roll your own motion vector system and completely bypass theirs. But I think you could do it with two transforms, but I haven't tried it. You'd have to update the objects at the end of the pass to move the current transforms to the previous transforms, then let the game have at them again to get the new ones updated. Then add a camera motion pass at the end to fill in the gaps and/or update the object motions allowing for camera motion too.
Interesting. But I'd stick with their system if I could. Better engine integration. URP is in the works.
The other thing is that I think the engine is set to use multiple passes for certain things simply because all target platforms don't necessarily support MRT. I suppose it's often easier just to do separate passes and get greatest compatibility rather than having a multi-pass and an MRT-pass version of everything. And of course there's rendering method where with things like deferred you want a depth pre-pass (and g-buffer) for other reasons.
That's all just me rambling/discussing.
What's discord for, eh?
meager pelican
Is it possible to create a shader using the Shader Graph that works inside a Can...
meager pelican
Anyone know about this error?
Shader error in 'TheShaderName': this variable dependent on potentially varying data: MyIntVar at kernel CSMain at blahblah.compute(80) (on d3d11)
What I'm doing is
// Things we'll stuff into group shared memory (defined global scope at top of shader)
groupshared float4x4 GS_localToWorldMatrix;
groupshared float4x4 GS_worldToLocalMatrix;
....later....
if (threadID == 0) {
GS_localToWorldMatrix = meshObject.localToWorldMatrix;
GS_worldToLocalMatrix = meshObject.worldToLocalMatrix;
}
GroupMemoryBarrierWithGroupSync();
<loop uses GS_localToWOrldMatrix, etc. for calcs....>
But everything above that point blows out as a dependency that it thinks might be "unstable" and it won't compile. Anyone know a reason. I know it thinks it will be varying, and it will, but it will be group-consistent as needed. Does it track all dependencies and somehow I have to be able to use this memory for calcing a result.
Is there something about groupshared that I can only set it once or some weird thing? What the heck?
Never Mind. Found a way. Only needed GroupMemoryBarrier()
whole socket
Anyone knows how to fix this error? Shader error in 'x': maximum ps_4_0 sampler register index (16) exceeded at line 180 (on d3d11)
Not an expert on how shaders work
developer of the specific asset said something probably took away a texture sample
but I've never worked with shaders before
meager pelican
Anyone knows how to fix this error? Shader error in 'x': maximum ps_4_0 sampler ...
pastel pilot
Hey guys! looking for some help. I am trying to animate my trees using shaders and I got it to work after 3 days of working on it..... but the issue is they only move while my character is moving, if my character is standing still, so are my trees. Some help?
this is the code I am using on my wind zone - https://paste.ofcode.org/3b5A5W56dR6VMtD8htqyzmN
I am using an HDRP pipeline if that makes a difference
twilit geyser
Hi guys 🙂 How can I find out what shader model my hardware supports? I have written a shader that requires Shader Model 4.0 as a minimum and now I'm trying to find out if that's available on Samsung Galaxy S7, but I can't find any info.
Are mobile devices using something completely different on a technical level and my shader would not work in the first place?
twilit geyser
Thanks, I will try that!
grand jolt
I need a flashing or lighting shader like lighting storm
queen spoke
Hello Krato did you thought about using Shader Graph for that ?
misty flame
Can you no longer use C# to make custom shader graph nodes?
Is hlsl the only thing you can do now?
meager pelican
Shader graph needs the HLSL anyway....they just changed the features to be from a custom node instead of a C# created node. IDK why.
grand jolt
Idk im new to this
sterile plaza
Hey! Do any of you know how to approach something like this? Where my player could fall through this manhole, walk through a door you name it - and where the part sticking out on the other side wouldn't be visible? I'm guessing something with alpha masks, but i don't really know
I figured that i might need to have two seperate sprites that shows behind my player and in front of my player, creating the illusion of the player entering the hole, but i dont know how i would make the part sticking out be invisible
queen spoke
@grand jolt You have this tutorial where Brakey is making the monkey glow by time.
Making a very short time and adding a random/hooked to your lightstorms would do this kind of flashing lightstorm effect you want.
https://youtu.be/Ar9eIn4z6XE
Hope this helps.
keen sparrow
Heya everyone,
I have a shader that I use to get a constant effect on a UI Image. When I place the UI-prefab in my scene and start the shader weorks properly. However, if I instantiate the UI-prefab from script at run time the shader doesn't work properly. It seems to do its thing for a single frame and then freeze.
Does anyone know what causes this and how to solve it? Thanks in advance.
tardy sage
Is there a way to unpack subgraphs (like prefabs) into their constituent parts?
toxic flume
How can I add intersection lines to blue zone/ death zone like in pubg or cod mobile efficiently
Depth map + stencil buffer?
ivory rover
I wanted to have 4 UV coordinate channels so I thought maybe I could just bring in all the channels, make an array with them all and index it with an int so I can change it with a script or something
but then unity was all like
I have narrowed it down to the indexing of the array because I can use a constant UVMaps[0] but not UVMaps[UVIndex]
this is the shader for people who dont want to download it
Shader "Game/Track/VariationShader" {
Properties{
_MainTex("Texture", 2D) = "white" {}
}
SubShader{
Tags {
"RenderType"="Transparent"
"Queue"="Transparent+50"
}
Pass {
Cull Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
struct InputData {
float4 vertex : POSITION;
float4 uva : TEXCOORD0;
float4 uvb : TEXCOORD1;
float4 uvc : TEXCOORD2;
float4 uvd : TEXCOORD3;
};
struct v2f {
float4 vertex : SV_POSITION;
float2 uv : TEXCOORD0;
};
sampler2D _MainTex; float4 _MainTex_ST;
int UVIndex = 0;
v2f vert(InputData i) {
v2f o;
o.vertex = UnityObjectToClipPos(i.vertex);
float4 uvmaps[4] = { i.uva, i.uvb, i.uvc, i.uvd };
o.uv = TRANSFORM_TEX(uvmaps[UVIndex].xy, _MainTex);
return o;
}
fixed4 frag(v2f i) : SV_Target {
return tex2D(_MainTex, i.uv);
}
ENDCG
}
}
}
is there something im missing here? I dont believe I can convert it to what it is asking for
junior crow
When you use normal maps to make a 2d sprite appear 3d, is there away to also have it render shadows on the sprite?
Like if Mario was lit from above, his cap should cast a shadow on his face. Is there a way to do that without going all-out 3d?
white cypress
Like if Mario was lit from above, his cap should cast a shadow on his face. Is t...
thats pretty much what normal maps do already, they provide 3d lighting information on a 2d image
junior crow
thats pretty much what normal maps do already, they provide 3d lighting informat...
Right, but they only light based on the normal value at each pixel. In the example with Mario's cap, his face would be be flat so the normal map would light it normally, without taking the cap's shadow into account.
Maybe a better example: a character holding an umbrella. If lit from above, I want the umbrella to cast a shadow on the character holding it
white cypress
right, and the pixel's normal value is the only real lighting information you can have on an image. I suppose you may be able to do it if you made the cap a separate sprite and made it cast shadows
junior crow
I think what I want to do is create a 3d model for each sprite, apply the lighting to the 3d model, and then apply that lighting to a flat sprite
Just not sure how to go about that, or where to get started
junior crow
right, and the pixel's normal value is the only real lighting information you ca...
With a separate sprite, the shadow it casts would be 2d, so that doesn't really work
white cypress
I think what I want to do is create a 3d model for each sprite, apply the lighti...
in this case you could just apply the shadows and hide the 3d model in game
junior crow
in this case you could just apply the shadows and hide the 3d model in game
I don't see how that would work? I should clarify this is in an FPS game with billboard sprites
I have an unlit pixel art sprite and a 3d model that matches that sprite. Want to apply lighting to the 3d model, take that lighting, make it flat and apply it to the pixel art sprite.
white cypress
i mean creating models for the items you want to cast shadows, not the whole sprite
junior crow
I mean if I want the shadows to appear accurately on the character, I may as well model the whole thing
white cypress
exactly lol
anyway i don't think there's a real way to map 3d shadows on a sprite other than normal maps, your best bet is to modify the normal map enough that you can fake shadow casting
junior crow
anyway i don't think there's a real way to map 3d shadows on a sprite other than...
It's possible to modify a normal map to do that?
white cypress
maybe? its how you get lighting information on a sprite, so I assume there's some way to modify it to an extent that you can cast shadows. this is all conjecture of course
junior crow
Maybe some kind of double normal map, where 1 map gives the normal angle of each pixel, and another map gives the distance each pixel extrudes from a flat plane
white cypress
and probably a custom shader thrown in
white cypress
holy hell that link
junior crow
lol
I think there must be some way to do it with height maps
It's all going over my head rn though
white cypress
I think there must be some way to do it with height maps
meager pelican
this is the shader for people who dont want to download it
```cs
Shader "Game/Tr...
You're trying to assign four float4's to one float4. And usually uv's are float2 (they're float x and y coordinates for texture mapping) but can be used for anything (it's a 2 vector float).
What are you trying to do? None of that makes sense (no offense intended, but I can't figure out how to help).
ivory rover
You're trying to assign four float4's to one float4. And usually uv's are float...
I fixed it with this, I had A track model where each of the UV channels held a different track UV where I could switch it out depending on the track with the UVIndex
Shader "Game/Track/VariationShader" {
Properties{
_MainTex("Texture", 2D) = "white" {}
}
SubShader{
Tags {
"RenderType"="Transparent"
"Queue"="Transparent+50"
}
Pass {
Cull Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_instancing
#include "UnityCG.cginc"
struct InputData {
float4 vertex : POSITION;
float2 uva : TEXCOORD0;
float2 uvb : TEXCOORD1;
float2 uvc : TEXCOORD2;
float2 uvd : TEXCOORD3;
UNITY_VERTEX_INPUT_INSTANCE_ID
};
struct v2f {
float4 vertex : SV_POSITION;
float2 uv : TEXCOORD0;
UNITY_VERTEX_INPUT_INSTANCE_ID
};
sampler2D _MainTex; float4 _MainTex_ST;
UNITY_INSTANCING_BUFFER_START(properties)
UNITY_DEFINE_INSTANCED_PROP(int, UVIndex)
UNITY_INSTANCING_BUFFER_END(properties)
v2f vert(InputData i) {
v2f o;
UNITY_SETUP_INSTANCE_ID(i);
UNITY_TRANSFER_INSTANCE_ID(i, o);
int _UVIndex = UNITY_ACCESS_INSTANCED_PROP(properties, UVIndex);
float2 uv = float2(0.0, 0.0);
o.vertex = UnityObjectToClipPos(i.vertex);
float2 UVMaps[4] = { i.uva, i.uvb, i.uvc, i.uvd };
for (int i=0;i<4;i++)uv+=UVMaps[i]*(_UVIndex==i);
o.uv = TRANSFORM_TEX(uv, _MainTex);
return o;
}
fixed4 frag(v2f i) : SV_Target {
return tex2D(_MainTex, i.uv);
}
ENDCG
}
}
}
but thank you for the help, if this looks dumb (which it probably does) still then feel free to recomend the last thing I was trying to implement
meager pelican
Well that's pretty clever. Will probably work.
But since you assign things and hard code loop counts and such, you can just do:
float2 uv = 0; // or float4 or whatever type you want that matches the others
uv += (_UVIndex == 0) ? i.uva: 0;
uv += (_UVIndex == 1) ? i.uvb: 0;
uv += (_UVIndex == 2) ? i.uvc: 0;
uv += (_UVIndex == 3) ? i.uvd: 0;```
I haven't tried that, but it looks sound.
so you won't need the for loop and you won't need a different variable for UVMaps...@ivory rover
Or a switch()
ivory rover
but now there is an if statement, isnt that like the worst thing you could do for a graphics card since it has to wait for that execution and they arent optimized for it?
just like you would favour a 3x3 rotation matrix for rotation in a shader and multiply it across instead of doing element by element with the same deriving math
@meager pelican
meager pelican
Any conditional is an "if statement".
So your multiply above where you say *(_UVIndex==i) is a check/conditional that returns a true/false just like the ternary operator does.
And it's a good bet that the compiler will look at your loop, with the hard-coded <4 in it, and unroll that into 4 statements as an optimization.
Basically if you're selecting like that, you're selecting. A switch would be an "if" too. But it's not that bad. It's not like you have two huge code blocks where all sides are executing on all cores. It's just ternary operations.
ivory rover
well I mean I had if(_UVIndex & i) before since the and operation is a bit less heavy? (dont quote me on that but doing the operation is less complex than)
sub x, i
cmp x 0
bne somelabel
somelabel:
but then it gave me some weird things after 1, and I just went whatever
basically the first thought process was just to bring in all the UV maps
float2 uv0 : TEXCOORD0;
float2 uv1 : TEXCOORD1;
...
``` then make it an array then index it on the _UVIndexbut then unity gave me GLSL compilation errors and as much as I would have loved to do this in GLSL, I dont think you can do that
meager pelican
You need the data per vertex, since UV's correspond to verts. So letting the engine figure all that out the way you've got the input structure is good.
But all that extra variable creation is probably overkill. IDK, you could benchmark it. IDK why you got an error with the index use after the assignments to the array.
ivory rover
If I was to do it like the other shaders in my game, I would have made a tool to bake the UVs into arrays then make a material property block to send that to all the instances (global) then send the index (instanced local)
all the animation is done on the GPU in this game so overkill is kinda meh, but that is because Im going to have a lot of the same thing on the screen
StructuredBuffer<int> PassInfo;
StructuredBuffer<int> PassBnds;
StructuredBuffer<float3> PassData;
v2f vert(InputData i) {
v2f o;
UNITY_SETUP_INSTANCE_ID(i);
UNITY_TRANSFER_INSTANCE_ID(i, o);
#if AnimationEnable
int MeshOffset = PassInfo[0];
float UnityTime = mul(_Time.y / _AnimTime, _AnimSpeed);
int FrameIndex = (int)mul(frac(UnityTime), mul(_AnimFPS,_AnimTime));
int kindex = PassBnds[FrameIndex];
float fpos = InverseLerp(PassInfo[kindex+1],PassInfo[kindex+2],FrameIndex);
float3 ThisDisp = PassData[(MeshOffset * (kindex)) + i.id];
float3 NextDisp = PassData[(MeshOffset * (kindex+1)) + i.id];
i.vertex.xyz += lerp(ThisDisp, NextDisp, fpos);
#endif
o.vertex = UnityObjectToClipPos(i.vertex);
o.uv = TRANSFORM_TEX(i.uv, _MainTex);
return o;
}
``` something Like this for animationI could make a tool that makes a mesh, then binds it to all the UVs and send it with the same methods but UV maps seemed a little less... time consuming...
meager pelican
Yeah, you could. But what's actually happening "under the hood" is that unity is already doing that for you. So when your vertex shader is called, it's grabbing those 4 values and assigning them to the structure. Sure, it's not an array. It's mapping that structure to the memory. But it manages it somehow.
I'll bet those 4 ternary operations will run really fast anyway. It's up to you. But unity has several UV sets already available. But be careful that you know that UV set #2 is for lightmaps and such. Other sets might be reserved too.
ivory rover
lol what lightmaps
I mean the difference of the ternary is probably going to be small compared to the time it takes to allocate for the array then do a for loop to add and multiply
if there was a way to send the full TEXCOORD array I would
since that would make more sense; sometimes I hate heavily managed things for this reason
small hinge
I have an image that has RGB values stored in the same place as transparent alpha. but unity seems to be corrupting the rgb values of those pixels in particular, not sure what could be doing it. either the nodes im using in shadergraph (sample tex 2D) or the import settings for the image.
actually i think its the import settings, because i recal this happening while i was using a non shadergraph shader
hm, I fixed it by just choosing to ignore the alpha in the import settings.. but I still want to be able to access the alpha :/
ivory rover
you could split the alpha of the image into another image and use that along with the RGB
stark canopy
It looks like setting Double Buffered to true on a CustomRenderTexture asset with a shader makes it stop working on WebGL. Anyone else notice this?
dusky cobalt
Hey all, got a bit of a WTF Shadergraph issue:
I have a pretty simple dissolve shader, with an extra fresnel on top to provide some fake lighting.
Thing is, for some reason, if I set the color to certain values, the entire effect just stops working?
Anyone got any ideas as to what the heck's going on here?
dusky cobalt
Got it... I must have forgotten to remove that add node attached to dissolve amount when I was messing with it before.
removing the add node fixed the issue.
pastel pilot
Hey guys can I get some help with this? I got some trees being animated with a wind zone by using a shader graph.... but as you can see in the video, the wind is heavily affected by player movement, whenever I’m moving the wind is far more intense.... any ideas?
hearty wasp
Hey guys can I get some help with this? I got some trees being animated with a w...
taking a guess here, but I think you might be basing your wind's position off view instead of world or object space
pastel pilot
I used the Basic Wind shader from Unity’s Fontainebleau
And found this related to player position
Do you think could be something here?
hearty wasp
I'm unsure, I've opened that demo before and they've some very complicated stuff going on
maybe someone else with a more advanced understanding of wind shaders can help you out, I've not done much with wind shaders myself yet sadly, sorry!
pastel pilot
No worries man thanks ))
grand jolt
is it possible
to make shaders use specific submesh position?
instead of mesh position
marble thunder
Hmm is there a tag to hide tiling and offsets for normal maps?
I am aware of the [NoScaleOffset] that I can use for other maps, but I can't have [NoScaleOffset][Normal} at the same time?
Tried [NoScaleOffsetNormal] and it didn't seems to do the trick 😦
[NoScaleOffsetNormal]_NormalA ("A Normal", 2D) = "bump" {}
[NoScaleOffsetNormal]_NormalB ("B Normal", 2D) = "bump" {}
It doesn't seem to have a documentation for NoScaleOffsetNormal, https://docs.unity3d.com/ScriptReference/MaterialProperty.PropFlags.html 😦
regal stag
I am aware of the `[NoScaleOffset]` that I can use for other maps, but I can't h...
Are you sure you can't have both at the same time? Seems to work fine for me
marble thunder
Are you sure you can't have both at the same time? Seems to work fine for me
I'll try... Must be doing something weird and odd about it.
Ok that works...
acoustic jolt
Hi, I'm new, does anyone know how I can put the textures here?
marble thunder
AssetBundle Browser under Window.
marble thunder
Are you sure you can't have both at the same time? Seems to work fine for me
my VSCode makes it weird and confusing with the color syntax...
regal stag
Mine does something similar, the extension probably doesn't take multiple flags into account properly.
acoustic jolt
AssetBundle Browser under Window.
I want to create a game and put the textures there
marble thunder
Mine does something similar, the extension probably doesn't take multiple flags ...
It's weird, normally they would be attribute tags. They should be able to stack on top of each other nicely.... either way thanks!
marble thunder
I want to create a game and put the textures there
Did you check the AssetBundle Browser window?
acoustic jolt
Did you check the AssetBundle Browser window?
I don't want to change the textures I want to make my own sharedassets0.assets
pastel pilot
I’m bout to delete it 😆😅🙃😒😔😢😭
pastel pilot
😦
acoustic jolt
tame topaz
@acoustic jolt This is an English only Discord.
acoustic jolt
<@!830273926126501910> This is an English only Discord.
Sorry
grand jolt
i have one issue, i want to combine meshes to save cpu and gpu usage
i heard its good to do it with objs that have same material
now heres the thing, its custom shader and it doesnt work this way
meager pelican
i heard its good to do it with objs that have same material
OK, what pipeline are you using?
grand jolt
builtin
meager pelican
Good
Firstly, just combining objects isn't always a good idea. I mean, unity's batching system will do that for you if they have the same materials, so you don't have to do it yourself. You CAN do it, but you should do it in clumps. So as not to make too large of a group, since the whole group gets submitted to the GPU even if only one pixel is showing.
grand jolt
yeah the shader is quite complex i think its better to search for optimizations else where
meager pelican
OK
Do you have several instances of these types of complex-shaded objects?
Have you seen GPU Instancing?
Does the shader support instancing?
grand jolt
i have highly comprresed textures only, and of small size, i also have gpu instancing everywhere
but my cpu cant stand this many
mesh renderers i believe
is it advised to combine only instances that are close to each other or can they be far too
gpu instancing cant help me any more tbh
cause the issue is with cpu
meager pelican
If you combine, say, 25 objects. And then 5 of them are on the screen and 20 are behind you, the CPU still has to process and send all the triangles for that combined mesh, so all 25 worth of data to the GPU.
Another thing you might want to research is LOD (level of detail) so you have fewer triangles on the screen at farther distances. And simpler meshes.
But I have no idea what you're doing on the CPU side that is causing this.
IDK what to tell you if you're CPU bound, shader tricks won't help much. And if you're already instancing, you won't need to combine meshes, theoretically.
You could look into the DOTS system, but it's still experimental and not recommended for prime-time yet. They use that with lots of on-screen pieces like in their demo. And it's a CPU-side thing (mostly if not all).
rustic jewel
Hii, so I downloaded a custom Skybox from the Unity Asset Store and now I got bloom enabled in my Season but it the Sun from the Custom Sky Box is extremly bright and I just want to remove it or dim the light from it. How can I do that?
loud remnant
The base map texture cuts off depending on the camera angle. Anyone knows why?
It's the regular URP/Lit shader
frigid pond
Hmm does anyone know how Unity sets the depth texture in built in render pipeline post processing stack v2? (I should specify that I'm using the deferred rendering path, not forward)
toxic flume
How can I add intersection lines to blue zone/ death zone like in pubg or cod mobile efficiently
Depth map + stencil buffer?
fathom temple
In HDRP, can hide pixels on objects between my character and the camera? Like with stencils? I've been trying to figure out to do this all today, but I can't seem to find much. Picture is what I'd like to do in HDRP
slim skiff
I'm trying to rotate and translate an object in a shader. I'm calculating both offsets then adding them together, but it seems like as I apply the rotation, the translation disappears. I can't get both to happen at once. What am I missing?
Graph:
knotty juniper
In HDRP, can hide pixels on objects between my character and the camera? Like wi...
maybe with a costume pass , that would render the mask
then you can use that texture in the rendering of your objects
fathom temple
maybe with a costume pass , that would render the mask
then you can use that tex...
Yeah, I looked into that. I'm also new with custom passes, but I think I almost got something figured out lol
knotty juniper
I'm trying to rotate and translate an object in a shader. I'm calculating both o...
mmm wired it works in my test case
slim skiff
mmm wired it works in my test case
i changed the axis and i think it is working, but it looks like it doesn't because...I'm not sure. Maybe the rotation is changing the translation direction as it rotates such that i can't tell it's moving or something
let me compare to what you have and test with a cube though, that's a good idea
slim skiff
yeah, i think it actually is working but it looks wrong, so I have to figure out why 😅
if i am rotating around a center pivot while i move to the side, it makes an arc
i guess my question at this point is...do those affect each other? like if i rotate 45 degrees then move 'left', is left now rotated 45 degrees, or is left still relative to the mesh's position?
i think i was expecting the latter, but what's happening is the former?
knotty juniper
hope you get it working 🙂
tacit parcel
The base map texture cuts off depending on the camera angle. Anyone knows why?
Looks like mip mapping, try disabling mipmap or change it from box to kaiser
loud remnant
@tacit parcel I changed from bilinear to trilinear and that did the job, thanks for the help though
amber gust
Hey ! I don't know if this is the right chan. I just bough a 3D model online, with texture, and I have no idea how to set material on the model in Unity. Can you help me with this ?
The pack give me this
shadow locust
Hey ! I don't know if this is the right chan. I just bough a 3D model online, wi...
You create a material
Then drag each of those textures into the various slots in the material
then assign the material to the renderer on the model
Depending on the shader you use for the material, you may or may not be able to use all of those textures
(for example some shaders may not support a "roughness" map)
waxen wind
Hi guys I'm wondering is it possible to use non URP shaders in a URP project? https://github.com/UnityTechnologies/Test_ShaderGraphBlog/blob/master/Assets/ProCore/Polybrush/Shader/z_TriPlanarBlend.shader
How hard would it be to convert this to something URP-compatible?
waxen wind
I finally figured out how to do Triplanar Vertex Blend in shader graph 🥳
mental bone
So quick question what vs plugins do you guys use for shader work ?
tidal harness
hello people i have a question ... to use Shader Graph in Unity 2020.3 do we have to change the project to URP?
mental bone
Or HDRP as far as I know shadergraph support for buildin pipe is comming but its not out yet
tidal harness
we cant use the shader graph on SRP?
tame topaz
we cant use the shader graph on SRP?
Nope, it doesn't work with the legacy built-in pipeline.
mental bone
Yet
tidal harness
thank you guys , another thing if you dont mind ... can someone point me to a good tutorial to make sword slash or trail , its been a week i m watching videos i cant find one that shows me the process from start to end ... =/
thank you very much ^^
tame topaz
Yet
Have they actually confirmed this? Considering they're moving away from the old renderer.
mental bone
Have they actually confirmed this? Considering they're moving away from the old ...
Well the graphics repo has several pull request that are doing work in this area and are aproved. Latest one was a doc change stating shader graph supports all 3 pipes
tame topaz
Oh okay, that's interesting.
mental bone
with the news about the X-Pipeline and this I think we are moving towards one super merged pipeline and our lives will be spent compiling shader variants
thick chasm
https://youtu.be/SOK3Ias5Nk0?t=139
I am new to shading, how do I use the shader graph made here so my world actually bends?
What do I need to apply it to?
white cypress
https://youtu.be/SOK3Ias5Nk0?t=139
I am new to shading, how do I use the shader ...
why don't you download the project and look?
grand jolt
Hi everyone, so, I recenlty added outline to my game, as a renderer feature
They are rendered as a post processing effect
I also used Brackey's dissolve shader tutorial to make a dissolve effect, but this causes the outlines to dissapear:
Is there any way to prevent this?
Also, here's the shader for the dissolve effect:
regal stag
I also used Brackey's dissolve shader tutorial to make a dissolve effect, but th...
I assume you're using a renderer feature with an override material to draw the normals texture (e.g. like the one provided in https://alexanderameye.github.io/outlineshader.html). This method cannot support shaders that use things like vertex displacement or alpha clipping (like in this dissolve effect) as the override material doesn't include them (and even if it did, the properties do not carry over). You could probably change it to Transparent surface mode, but then you'll see outlines through it instead which may not be what you want.
Since it looks like you're in v10, URP contains a method for creating a _CameraNormalsTexture without relying on an additional render feature. Instead of override material each shader includes a DepthNormals pass (which can support alpha clip). You can ask URP to generate the normals texture using this pass. It only works for Lit shaders and Lit Graphs though. Unlit ones do not have the pass, (I have used an additional feature in the past to render the unlit ones manually https://gist.github.com/Cyanilux/be5a796cf6ddb20f20a586b94be93f2b, but it's the same idea as the override material so they still won't support alpha clip. At least lit ones do though).
You will still need the feature to blit the outline material to the screen, which can also call ConfigureInput(ScriptableRenderPassInput.Normal); in the setup before EnqueuePass to request URP to create the normals texture. I've got a blit feature that can do that if you don't want to edit your current one. https://github.com/Cyanilux/URP_BlitRenderFeature
grand jolt
So I have to add your blit feature instead of the one I already use?
Hope I understood everything right, I don't know much about shaders though
I followed a tutorial for an outline effect, since I had no idea how to do it on my own
regal stag
So I have to add your blit feature instead of the one I already use?
You can use your current blit one if you'd like to, but you'd need to add the ConfigureInput(ScriptableRenderPassInput.Normal); for URP to create the _CameraNormalsTexture.
If you used alexander's tutorial you'll also need to change the shader as they used the reference _CameraDepthNormalsTexture instead.
grand jolt
Lol, added your blit script and it works perfectly
Haven't tested with the dissolve effect though
But as you said
Small chances to work with such effects
Or is it possible and I am just dumb?
regal stag
If you tick the Requires Depth Normals on the blit script, and use _CameraNormalsTexture in the outline shader, it should work with the dissolve effect too (for Lit graphs at least)
steel notch
Hey so I'm struggling a bit with trying to get Emission maps working. This is my current Shader graph.
And this is the result
for some reason the entire flower is getting bright
as opposed to just the bulb
regal stag
Are you using a secondary texture on the sprite to pass the emission texture in? If so, is it using the same reference on the property as set in the Node Settings tab. (Ideally the texture's mode should also be Black, so it defaults to black when no texture is assigned. I assume it's white atm, which is why the whole thing is affected)
If you aren't using textures based on the sprite, just make sure the texture is assigned on the material I guess.
steel notch
Are you using a secondary texture on the sprite to pass the emission texture in?...
Yes the sprite has a secondary texture set.
Kinda getting used to shaders atm, so sorry if I ask some dumb questions.
Was that second sentence a question?
regal stag
Yea, the texture properties need to have specific references to obtain the textures from the sprite. _MainTex being the main one which you might have already set, but have you set the emission one to use the same reference as your secondary texture set?
(referring to the "Reference" field in the Node Settings tab of the Graph Inspector window, when the property is selected)
steel notch
Yea, the texture properties need to have specific references to obtain the textu...
Here's what I got
regal stag
Hmm it should work then afaik
steel notch
I just dont see why the whole thing is lighting up
regal stag
What colour is set on the Sprite Renderer? Is it white or pink?
steel notch
its white
problem is when I mess with the HDR, the color of the whole thing changes
not just the bulb
misty flame
How is information in normal maps stored?
I get how they work and that they change how light reflects to make it look like there's a lot of complicated geometry without actually having it
but when you sample texture 2d it and get an rgba, does it just fill up the rgb? Is it a normalized vector3 that tells unity what direction light will be reflective from? Or is it a vector2?
knotty juniper
The RGB colour values are used to store the X,Y,Z direction of the vector, with Z being “up” (contrary to Unity’s usual convention of using Y as “up”).
so only two off the color channels are realy used
misty flame
So z is just 1 always? What do you mean by z is up?
regal stag
How is information in normal maps stored?
The docs page here might have some info : https://docs.unity3d.com/Manual/StandardShaderMaterialParameterNormalMap.html.
The texture is stored in a 0-1 range, but normals are -1 to 1 so after sampling the values are remapped (typically using the UnpackNormal function, For SRPs can see them here : https://github.com/Unity-Technologies/Graphics/blob/master/com.unity.render-pipelines.core/ShaderLibrary/Packing.hlsl). I believe most use the UnpackNormalmapRGorAG function which basically ends up reconstructing the Z axis so the blue stored in the texture is ignored.
The result is in "tangent space" though (relative to the surface, following the uvs), and needs to be transformed into world space for lighting calculations. This is handled by constructing a matrix using the mesh tangent (x axis), bi-tangent (y axis) and normal vectors (z axis). e.g.
half3x3 tangentToWorld = half3x3(tangentWS.xyz, bitangent.xyz, normalWS.xyz);
normalWS = TransformTangentToWorld(normalTS, tangentToWorld);
In Shader Graph most of this is handled behind the scenes, you just need to select Normal mode on the sample node and connect it to the Tangent space Normal port.
misty flame
Ohh ok so basically it's able to be only a vector2 because it's in tangentspace and tangentspace is just relative to the triangle's surface so it only needs two coordinates
like relative to the geometry normal
loud remnant
How can I achieve a more accurate mirror effect? This is a standart metallic shader with smoothness set to 1
I use a reflection probe for the reflections on the shader
The reflection probe method causes the environment to look a lot closer in the mirror
knotty juniper
you will need a planar reflection if you want to have "perfect" reflections
mental bone
Hey Im going to ask again. What visual stidio plugin/s do you guys use to make writing hlsl and unity shaders easier?
tranquil cipher
hi all, may i ask what cause the mesh have this weird rim light ? the problem appear both in scene ( custom shader with very basic fresnel effect with power=10 ) and in preview panel which using unity's default shader so i think the problem lie in the mesh itself, not the shader.
i checked the dress, recalculate normal for it, and checked the facing, all no issue, i don't understand why the upper dress and the bottom have very different rim light effect
and also, both bottom and upper are in a same mesh not seperated
tranquil cipher
Okay i found the problem caused by normal, using weighted normal modifier in blender fixed it
timid minnow
Anything obvious I'm missing as to why this shader works in URP but not HDRP?
It's meant to dither the object the material is assigned to when the camera gets too close
There aren't any issues with how it renders in HDRP, it just doesn't do any of the dithering (playing with the alpha/alpha clip threshold manually didn't appear to improve things)
Hrmm, there don't appear to be any tutorials that explore this effect in HDRP. Is it simply not possible?
regal stag
Anything obvious I'm missing as to why this shader works in URP but not HDRP?
I don't use HDRP a lot, but I'm aware that World positions in HDRP are camera-relative. Should be able to just do Position node (World) -> Length node instead of Distance.
Or use Absolute World space, that way the same graph should work in both.
timid minnow
I don't use HDRP a lot, but I'm aware that World positions in HDRP are camera-re...
You're an absolute legend! That fixed it! (also I had to turn alpha clipping on for each material's inspector)
mental bone
im still looking for a plugin that gives IntelliSense for hlsl and srp stuf
meager pelican
im still looking for a plugin that gives IntelliSense for hlsl and srp stuf
https://marketplace.visualstudio.com/items?itemName=TimGJones.HLSLToolsforVisualStudio&ssr=false#overview
That's one option, YMMV. But instead of posting here, you could just google it.
IDK what ones are better than others, it's largely personal opinion. And frankly I hate the colors in this one, have to edit them.
Others use Jetbrains Rider or VS Code editors. Rider is experimental right now
https://www.jetbrains.com/help/rider/Unreal_Engine__HLSL_Shaders.html
That took me 5 minutes to google.
None of them are shaderlab specific that I know of though.
mental bone
https://marketplace.visualstudio.com/items?itemName=TimGJones.HLSLToolsforVisual...
yeah I've been googling the same things for a while now. I was hoping someone here had a hidden gem so to speak.
mystic plank
yeah I've been googling the same things for a while now. I was hoping someone he...
I m trying to export a eevee object form blender to unity, but the object still without the shader why?
mental bone
do you mean without the material ? You cant exactly export a blender material to unity afik
mystic plank
do you mean without the material ? You cant exactly export a blender material to...
look
I have those balss with a shader toon
but when I export it as FBX or .blend file to uniy its appear gray
without shaders and nothing and the base material is kinda gray too so what happend
desert orbit
@mystic plank You already got the answer in another channel you cross posted in.
mystic plank
<@!773338400492748810> You already got the answer in another channel you cross p...
where
btw look
I xported just one to test
and look the blue material is withe
tame topaz
Shaders are not exported. You have to recreate in Unity.
meager pelican
yeah I've been googling the same things for a while now. I was hoping someone he...
I understand, but none of us have a magic answer that I know of. Sorry.
mystic plank
Shaders are not exported. You have to recreate in Unity.
:OOOOOOOOO
dude I spend all this time making this in blender :'u
tame topaz
Yep
mystic plank
this shader toon how can I make it on uniy so
tame topaz
You can take the approach and redo it in Unity's shader graph.
The concepts are usually transferable.
mystic plank
btw so if I have an Anime Character in blneder and and I want to make it looks like one of Genshin impact but in unity, so I have export the FBX with base color and put the shader toon in unity to make it look like an anime ?
tame topaz
Yes, and that's exactly what Genshin does. This is just how the workflow works.
mystic plank
You can take the approach and redo it in Unity's shader graph.
I can transfer the shader from blender ?
tame topaz
No, as I said already, you have to recreate it.
mystic plank
Yes, and that's exactly what Genshin does. This is just how the workflow works.
dude really thanks for explain me that I was kinda lost ;'v
mystic plank
No, as I said already, you have to recreate it.
ohu so let me see a tutorial sjsajs
mystic plank
btw look
can I use this base material exported from blender called blue in this picture and use it to remake the shader in unity?
I mean should I make a new material or I can use this as well
tame topaz
Everything from scratch. New shader, new material that uses that new shader.
mystic plank
nice so I only will take from blender the FBX nothing more
mystic plank
Everything from scratch. New shader, new material that uses that new shader.
for animations are the same?
and VFX made in blender like a fire ball
tame topaz
Animations will be imported. VFX, no.
mystic plank
Animations will be imported. VFX, no.
ohh I have to make the fireball in unity too
knotty juniper
you may be able to bake out texture sheets from blender that you can use in the unity particle system
tame topaz
It's a combination. You make any mesh, figure out any masks etc. And then import them into Unity and put it together.
mystic plank
you may be able to bake out texture sheets from blender that you can use in the ...
so I can export an asset for blender with a bake texture and unity will import correctly?
mystic plank
It's a combination. You make any mesh, figure out any masks etc. And then import...
I make the mesh of the fireball and then I put the vfx in unity right?
knotty juniper
thats more a manual process i was talking about
https://blog.unity.com/technology/free-vfx-image-sequences-flipbooks
mystic plank
thats more a manual process i was talking about
https://blog.unity.com/technolog...
ohh thanks
tame topaz
There's many ways to do anything. Figure out what you're wanting to do and break it down into the steps to recreate.
mystic plank
okay so much thanksss
I have an other problem but is fir the Physics channel
haha
I mean how I make this in unity
spark crystal
how can I tweak the 'reflectiveness' of a material with shader graph? this is how my character looks under the sun
and this is how I want it to look instead
toxic flume
The best efficient way to have intersection lines (objects) is to use depth map?
I want it for the whole scene
android devices
brittle owl
how do i do custom lighting in hdrp?
just trying to get the main light direction and shadows
soft harness
so I have this code that generates a little cone around the light, but there's a bit of a problem, it doesn't exactly work with shadows. I tried multiplying the alpha with the atten, but that doesn't work
grand jolt
Does anyone knows a method to sample a cubemap that takes an origin and a direction instead of a direction only?
I know this may sound odd, since the cubemap has no physical size
But that could be an emulated size
lean grove
Hello, I'm looking to do an effect like Doom Eternal glory kill highlight
It looks like it is a material that overlays the enemy materials and it's activated when the enemy is close to dead
How can I do that? Having a material overlaying a render that already has it's materials
for context:
Or should I just add this logic to ALL shaders/materials?
junior iris
Or should I just add this logic to ALL shaders/materials?
You can add more than 1 Material per MeshRenderer
meager pelican
Or just swap the material on the object in C# side
lean grove
But ideally I just want it to overlay
meager pelican
You can set a material every frame.
lean grove
adding one material will create an overlay?
meager pelican
Sure. They're drawn in order. Mat0, Mat1...
But if you do that, you basically render the mesh twice. Generally not a great idea.
So make a shader for no-effect. And then make a shader WITH the effect, and pass the same textures so you have the base colors. At least that's one option.
Generally with shaders, your goal should be to draw each pixel ONCE and only once. That's an ideal, not a reality. But still...
Or just pass the option to use or not-use to the shader, and turn the effect on/off. And then you don't have to swap anything, just set the effect "switch" on or off.
lean grove
Got it
But this would mean I have to duplicate all the marerials / shaders that I have
right?
vocal narwhal
If you're using a render pipeline you can also make a draw objects pass that will apply a material to something on a specific render layer at a specific point in the rendering process
All without writing any code
meager pelican
There is no one answer, only many possibilities. So think about it.
The wall behind the demon probably doesn't need that shader effect. But most all demons probably do.
lean grove
Exactly 👍
meager pelican
And you could make the effect a sub-graph if you're in SRP land.
Or an include in standard.
lean grove
Need to explore subgraphs. That’s probably the path I’ll take.
Can I use subgraphs on non shader graph shaders?
meager pelican
Nah
lean grove
Hmm
I think the extra material will be the viable way as a solo dev 😂
If my mesh has multiple submeshes, how can I add one material to overlay all submeshes?
junior iris
If my mesh has multiple submeshes, how can I add one material to overlay all sub...
It's a 1-to-1 relation meaning you'll have to do it to each one.
Ideally in this case you'd store all your submeshes in an array or similar and then go through it.
meager pelican
Do a simple test case. Take a model, add a 2nd material to each mesh that does some kind of blend/overlay with an input color. Make sure it works throughout your workflow (animation, skinning...).
The thing is that that 2nd materiel won't know much about the first material if it's 2 separate materials. It depends on what you want to achieve.
@lean grove
left stump
i wanna commission someone to change a shader from a color RGBA to a Texture
anyone interested?
vocal narwhal
i wanna commission someone to change a shader from a color RGBA to a Texture
There is no job posting here. Only on the forums: #💻┃unity-talk message
left stump
Thx
warped pike
Hey, I am trying to use the cubemap shader (6 faces) to render skybox in HDRP, I used this:
https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@7.2/manual/Creating-a-Custom-Sky.html
In order to customize the skybox, but when I try to use this shader:
https://github.com/TwoTailsGames/Unity-Built-in-Shaders/blob/master/DefaultResourcesExtra/Skybox.shader
(And of course cleaning the errors / warnings if there is any, *even tried outputting red color for everything)
But there the result is just a black skybox, plus, the renderer doesn't clear the buffer, so the rendered objects seems to be not cleared and leaving a trail
Is there something I am missing in order to achieve this kind of effect? It seems like HDRP broke the shader I made for the skybox
vocal narwhal
Are you trying to use the built-in skybox shader for HDRP? I'm not sure I understand how the second shader is relevant
if you want a different shader you'll need to port the logic to the HDRP sky shader example they provide in the custom sky example, something that's HDRP-ready
meager fable
do i get this error because of i am not using lts version ?
or is there something to fix this
warped pike
@vocal narwhal I needed a shader that render 6 faces of the cubemap, the second link is the shader that used to do that (in URP and standard), and it worked fine, now it doesn't (probably because as you said, the shader needs to be HDRP-ready), the problem is that I am not sure how to convert it to be working with HDRP
vocal narwhal
<@!332468003151282176> I needed a shader that render 6 faces of the cubemap, the...
Is there a reason you're not just using the HDRI Sky volume component?
warped pike
@vocal narwhal Actually yes, I am writing to the depth buffer + use the alpha there
and I am rendering sprites in the same shader pass
(Those needed to be rendered that way)
vocal narwhal
The sky shader in the "Creating a custom sky" takes a cubemap, is there an issue with modifying that shader?
warped pike
@vocal narwhal I am trying to achieve this right now, will update
vocal narwhal
I cannot be of more help, but if you do have issues, #archived-hdrp tends to also be a good place to go for pipeline specific shader issues, as long as not crossposting it can be good to try there instead.
charred wing
Ok you're giving almost no context, and technically that is a statement not a question
Where is the shader from? etc.
warped pike
Hey, I had a shader with 6 passes in standard/URP, which each pass is assigned a face for a cubemap, which somehow Unity does automatically, in HDRP, it doesn't seem to be happening, AND the only pass that get's called is the second one, every other pass is ignored, any idea why?
grand jolt
guys I would like to use unity's shader graph but I don't think it's available for the standard built-in render pipeline, is there any way I could use shader graph?
fathom temple
pool
paper oar
guys I need help - see question here : #archived-hdrp message
tame topaz
@paper oar Don't crosspost please. If someone can help, they will.
fathom temple
what?
I'm so sorry, lol I probably accidentally typed that when trying to google stuff, did not mean to type that here 😆
white cypress
guys I would like to use unity's shader graph but I don't think it's available f...
No, sorry
Upgrade to srp or dont use shader graph
shadow locust
guys I would like to use unity's shader graph but I don't think it's available f...
Another option is to use an asset such as this https://assetstore.unity.com/packages/tools/visual-scripting/amplify-shader-editor-68570?gclid=Cj0KCQjw78yFBhCZARIsAOxgSx2FhK3wEZGpW0rcJc_NceW_4aPClUKdkWWIBF3ddU0a3Mp8bfkirBsaApbTEALw_wcB
Costs $$$ though
grand jolt
I'm so sorry, lol I probably accidentally typed that when trying to google stuff...
oh lol
grand jolt
Costs $$$ though
im broke af rn
grand jolt
Upgrade to srp or dont use shader graph
I guess
but I have one more question
I'm pretty sure shader graph supports HDRP, i tried switiching to HDRP and my game went from 200 - 400 fps to 60 - 90 fps and my gpu was starting to heat up
Im using an rtx 2070 super btw
Why is HDRP taking so much performance? and is there any solution?
quiet flume
Hey all. I am trying to figure out what I would need to do to achieve this effect. Essentially I want to make a cube or a plane that's transparent and anything inside/behind the cube would be dimmed a little bit based on some slider value. Is this some kind of stencil shader? What modules should I be looking into for the shader graph to achieve this?
meager pelican
"inside" is logically different than "behind", so you should pick one. But...
Stencil works for "behind", in a post-processing type of thing. Could be custom render pass, I think.
Inside is a volume calculation, so that's different. Like if green grass behind the cube is not dimmed by the top of the cube, even if nothing is inside it. You could do that too but you have to compute the worldspace coordinates of the pixel, and see if it is in the bounding box.
subtle garnet
hi, can someone please help me on something? im porting a shader from unity to GLSL and thres a special operator that im not really used to
drifting lance
``` (*color* is a half3)
that ">" in the end is doing what to *colors*? isnt ">" suposed to a comparisson operator?? what i can switch it to?It is a comparison. That code doesn't seem to be a good way to do it, IMO.
But that expression (color < 0.5) is a boolean expression, and would return 0 or 1 (false or true). And then the result of the lerp would return either C_u or c_d, it's not really lerping.
Better to use an expression like:
half3 final = (half3) (color > 0.5) ? c_d : c_u;
I haven't tried that and the cast may be weird.
subtle garnet
ahhh ok, tysm helped a lot
meager pelican
The question is "Is lerp faster than the ternary?" considering both have to evaluate the expression anyway.
I suspect it is not. YMMV though.
subtle garnet
yeah its a bit confusing... i substituted it with a + before and it seemed to work fine too so yeah
quiet flume
"inside" is logically different than "behind", so you should pick one. But...
S...
so I think for the sake of simplicity I would lean more towards behind. just because all I care about is any game objects (Not the skybox) are tinted.
shadow locust
Why is HDRP taking so much performance? and is there any solution?
It's really pretty
It will run faster in a build.
meager pelican
so I think for the sake of simplicity I would lean more towards behind. just bec...
Oh, then you'll want to do it before the skybox or filter that out with a distance check somehow.
But yeah, if you stencil the box, then you can "just" darken the pixels or do whatever with a stencil-aware pass kind of like a post-processing for opaques. Not sure off top of my head how to insert that pass, but you could do it with things like command buffers or maybe URP has a setup in its render features that will do it, maybe full screen.
Like "After rendering opaques" and as a full-screen-quad:
meager pelican
What's a vector3.zero normalized?
oh, wait.
Saw the parens.
lol
There's no need to subtract the zero vector. It's like saying 42 - 0. That's just 42.
They're hardcoded zeros though. OK, place holder
So the 0,0,0 represents the center of your planet. And the point coming in is the terrain's point (well, vertex point).
So that gives you, for each vertex, a "normal" that is relative to the sphere. I guess. So it's a set of spherical-normals for the 3 verts. Then you want to figure out what the "steepness" is.
But regardless of the planet being spherical, you should have a normalized lighting of the triangle itself. Relative to the light.
So some self-shading would work. I would think. And that's an Normal dot Light-Dir type of calc for the triangle.
Sphere or not.
OK, but a triangle is a triangle. Maybe I'm not catching what you're doing. Is your lighting 360 degrees?
So it's directional.
So a triangle is a triangle.
Shaded relative to that.
So for the 3 points, you can calc the normal, or you already have it.
Sec
Well, you can interpolate them. Or you can calc a flat normal for the triangle from the 3 verts.
That is float3 normal = normalize(cross(v1 - v0, v2 - v0));
where v1-3 are float3's in HLSL (or Vector3 in C#)
Try just plugging the mesh's vert normal straight into the normal in the vertex stack. Does that not work? (would be smoothed shared normals I think, depending on how recalc normals worked. Maybe it would end up flat. Not sure, may depend on if you shared verts in the model or didn't).
toxic falcon
can you set a shaders albedo to a scriptable object data point and it changes each frame?
meager pelican
can you set a shaders albedo to a scriptable object data point and it changes ea...
IDK what you mean. You can get data from an SO (it's a data container) using a C# script, and then have the script set a value on a material for a shader to use.
But that's not really a shader issue, in and of itself.
Try general code if that's what you're after (I'm not sure). Shaders have color properties
sinful veldt
anyone know why i cant update deprecated shader?
grand jolt
It will run faster in a build.
not much of a difference, plus it takes 3 minutes to bake 4 lights
my gpu is running at 100% usage
grand jolt
not much of a difference, plus it takes 3 minutes to bake 4 lights
before it took like 5 seconds to bake lights
mental bone
Dont know about the bake times but you should use the profiler and frame debugger to see what is going on.
toxic flume
The best efficient way to have intersection lines (objects) is to use depth map?
I want it for the whole scene
android devices
modest fern
Hey got a question - I recently came across this PR on the unity Github. It is supposed to add Shader graph support to the default render pipeline. Does anyone know if this will be merged in a point release or a major release?
vocal narwhal
Nobody knows anything
modest fern
There is no spoon
vocal narwhal
Shadergraph is a package, so you would presume a major release of it. Whether they've had to modify the engine that much for this, maybe someone else knows
modest fern
Got it 🙂
grand jolt
Dont know about the bake times but you should use the profiler and frame debugge...
i still can't figure out what's wrong
turbid hamlet
question, how do I import these shaders into my project? - https://github.com/Kodrin/URP-PSX
or is there a better way to get ps1 graphics with urp?
proud anvil
when you define certain properties in a shader (the Shaderlab part), what exactly is the function of the curly braces after the initialization?
Example:
_ExampleName ("Texture2D display name", 2D) = "red" {}```
You'd think this would say but it doesn't https://docs.unity3d.com/2020.1/Documentation/Manual/SL-Properties.html
I'm trying to really _understand_ ShaderLab, but the documentation doesn't feel completeI actually figured this out from some legacy documentation. It's an options object that can contain some options about textures
meager pelican
It's the default value if left blank.
It has to be initialized to something, so you specify what that is.
The braces are due to it being a texture object, I guess.
That works for other texture-type objects, such as a cubemape too.
That's distinct from other things, like vector, which uses (1,2,3) notation.
Or simply a float 1.01
So you'll see things like _ExampleName ("Example vector", Vector) = (.25, .5, .5, 1)
You'd think that the "red" would go inside the braces but it doesn't.
bitter forge
Whats the correct syntax for returning a fixed sized array in hlsl? (I tried googling)
I'm trying to return float3 fv[4];
float3[4] function( complains
low lichen
Whats the correct syntax for returning a fixed sized array in hlsl? (I tried goo...
In GLSL? Do you mean HLSL/CG?
float3 would be vec3 in GLSL
@bitter forge It's not possible to return an array from a function in HLSL. Best you can do is an out parameter:
void function(out float3 array[4])
{
array = ...
}
Correct hlsl, thats my mistake.
bitter forge
<@!400614682714439681> It's not possible to return an array from a function in H...
Thanks i also finally came across a similar answer here https://stackoverflow.com/questions/40691285/return-my-struct-as-an-array-in-c-opengl
meager pelican
Generally, a return value of a struct is used for MRT's.
IIUC
Why would you want to return multiple values outside of MRT's?
What you'd usually do is store data in a texture or some such. Set a structured buffer's value.
Remember this stuff is bound to hardware stages. Outputs end up in render textures/GPU buffers.
low lichen
Generally, a return value of a struct is used for MRT's.
They could be talking about a regular function, rather than the vert/frag functions
sinful veldt
why my shader node wont update?
silver moat
Hello there. I am using HDRP and I would like to triplanar-ly project a grid from within a shader, but the triplanar node seems to only allow a texture for an input, which I don't have. Is there any workaround to turn the output of a node into a texture-like node, or a better way of creating a triplanar projection?
Basically I've got this, which I would like to apply triplanarly.
molten violet
Does anyone have an idea on why my preview differs from the editor and game?****
autumn girder
Do you guys think it's possible to make a "Field of view/line of sight" effect in 2D using only shaders?
autumn girder
Oh, that's the tutorial I followed for my project. It works perfectly.... Except that since it uses a URP forward renderer instead of the 2D one, I can't use lights in the scene. Which is why I asked if it would be possible to do it using only simple shaders, so that I don't need to use the forward renderer.
I have searched the web everywhere I could think of and got no closer to a solution
autumn girder
Sorry I saw all of this now, but thank you so much for sharing your knowledge! This is a huge help!
merry garden
Getting started with shader graph 2020 version 10 and doin some tests to try it out
trying to follow along with online tutorials but most of them involve a step connecting a node to their master's albedo input
However, theyre using older versions with PBR master
and the newer versions (iirc) got rid of PBR and merged it into lit
basically Im trying to find the albedo input and have no idea where to look lol
regal stag
Albedo is Base Color
merry garden
Gotcha, that was what I was thinkin
thanks!
honestly, the switch over to the newer version has left a lot of tutorials Ive been using extremely hard to read since lingo and terminology has changed/options have switched places, etc.
simple jolt
Does someone here know how to go about applying a 2d texture to a raymarched shape?
simple jolt
@grand jolt I'm relatively new to all this, do you know of any links that could further help me with what u described?
merry garden
workin more with the shadergraphs and tutorials are asking to call upon a main light node, which does not exist in newer versions
how would you call that in newer versions?
regal stag
workin more with the shadergraphs and tutorials are asking to call upon a main l...
Main Light hasn't ever been a built-in node afaik so the tutorial might be using custom nodes. The newer method is using the Custom Function node. I have a few custom functions / subgraphs for custom lighting stuff here : https://github.com/Cyanilux/URP_ShaderGraphCustomLighting
merry garden
Main Light hasn't ever been a built-in node afaik so the tutorial might be using...
Appreciate the assistance! Will look here
I can send a pic of what theyre using for reference brb
merry garden
Main Light hasn't ever been a built-in node afaik so the tutorial might be using...
checked the comments, he did use a custom node lol
thanks for pointing it out, wouldve kept lookin for it if not for u
simple jolt
Thank you very much
prime pasture
Hey, anyone tried writing to SV_Depth with HDRP? I tried using it and it doesn't seem to work for me, any idea why? (used ZWrite On).
I tried setting constant values to it but it doesn't seem to make any effect
meager pelican
Hey, anyone tried writing to `SV_Depth` with HDRP? I tried using it and it doesn...
Well, uh, IDK what are you doing? How are you "trying to write to it"? In the vertex stage or even at the frag stage, the pixel z value? (Frag? Yikes! Holy pipeline crusher, Batman!)
prime pasture
@meager pelican Sorry for not giving more info:
I have 3D plane facing the camera (blocking the view), behind it are some objects, I want the objects to be visible on some parts of the plane (controlled by the shader)
What I have tried is outputting from the fragment shader, SV_Depth values of 0-1 (and higher and lower) to see the results, but the result still is the same no matter the value
FragOut frag(Varyings input) : SV_Target
{
// ...
output.depth = 0.0; // 1.0;
return output;
}
Something like that.
meager pelican
It shouldn't be a void return.
prime pasture
ops, just a mockup
meager pelican
But you don't want to alter the z value to do what you want....I don't think.
Maybe think about it as "what shows through the semi-transparent plane". You can draw the plane in the transparent pass even if the pixels are opaque. But I don't know what you're really doing (yet). Somehow you may need a stencil to tell if a pixel should "show" or not.
prime pasture
The plane has a texture, which is used as a background, I want some parts of the texture to be visually in front of other gameobjects
I used it in URP and it worked great
prime pasture
Oh, didn't think of that
meager pelican
Doesn't matter. I don't think you want to alter the z-value, just to "see" it.
How do you tell one type from another?
prime pasture
Actually I don't need to, I only have 1 background and it has its own shader, the others use the built-in shaders
meager pelican
But somehow, you decide to alter the z-value or not, right?
prime pasture
right
meager pelican
Well, how do you decide that? Is it an attribute of the object?
Can you use a stencil instead?
Then just clip the pixel on the plane if the stencil is set.
That let's you do an "early stencil" test. Won't even run the frag().
prime pasture
I'll test that out thanks!
distant sleet
Ahhh god alright so
Im trying to make a raytracer and later a raymarcher in HLSL and C#
So for that I would like to pass gameobjects into the compute shader to compute their intersections and draw them
Currently I have game objects with a script with all of their parameters
I was able to easily pass the radii of spheres from C# to HLSL but Im struggling with the positions
Ideally it should be an array of float3s with a variable length
So what I have is a list of all the gameobjects in the C# code
and I would like to pass all their positions (x,y,z) from C# to HLSL
I also want to be able to add spheres to the scene
What would be the best way to approach them?
grand jolt
Hey, does anyone have an overrender shade that doesn't overlap itself? i can't seem to find one anywhere
distant sleet
I give up on making the number of spheres changeable
Its gonna be 50, but I still cant figure out how to send all the positions as an array fo float3s to the compute shader
Do I just do List<float[]>.toArray()?
meager pelican
@distant sleetCheck out Structured Buffers and SetBuffer().
distant sleet
Ill check it out, I saw it and didnt know itd apply to this
Thanks
Still tryna figure out how to push float3s
meager pelican
Also see http://three-eyed-games.com/2018/05/03/gpu-ray-tracing-in-unity-part-1/
And he'll get to uploading meshes later. Then you can invent your own part 4.
Or see http://raytracey.blogspot.com/2016/01/gpu-path-tracing-tutorial-3-take-your.html
distant sleet
I saw the first one
Its what Im following lmao
Before I tackle raymarching
Didnt see him passing in GameObjects in part 1
lemme see 3
meager pelican
He does it, and has an "IntersectTriangle" routine, but it's brute-force for all tris in the scene.
distant sleet
Ahh I see
Ill tackle it later
for now Im just doing an array of 50
But is there a way to just pass float3s? Because I'd rather stick with that
For now atleast
meager pelican
In the end, a structuredBuffer is just a block of memory. IT can be read-only or read-write. You could see if you can find a way to pass a CBUFFER (constant buffer) and benchmark if it is any faster. But IDK.
distant sleet
I see, yeah thats waht I understood
Ill try that lor raymarching definetly as efficiency is needed
meager pelican
The nice thing about SB's is that they're not fixed size at compile time.
So you don't have to hard-code things like "50"
distant sleet
Oh i figured out float3s btw
So Ive linked all the spheres to gameobjects whcih is nice
but buffers are better for raymarching
But for some reason only 1 sphere is working, Ill figure it out
meager pelican
It all depends on what you're doing. If you describe the whole scene mathematically, like with SDF's, that's different than shipping up geometry and intersecting it. But the nice thing is that spheres are "easy". I implement them in a special sphere buffer and then use editor gizmos to draw them on the unity side in the scene. So they're always perfect SDF type spheres.
But the rest is usually mesh geometry.
distant sleet
Yeah with raymarching I can add a lot more meshes
so Im using only mathematical expressions, not triangles
meager pelican
Have at it, and have fun! 🙂
distant sleet
Thanks!
Ive managed fractals and raymarching before
In native java
this time I hope I can get it realtime
distant sleet
I am still confused about the SetFloats function
it states :
" This means that the the array elements must be aligned on float4; for example, float4 data requires no padding, float3 data needs one float padding for each element, float2 data needs two floats, and so on."
What does float3 data needs one float padding for each element mean?
indigo frost
so i have a general newbie question about meshes
and i'm not entirely sure if this is the right channel for this... but i figured i might as well ask...
Basically, so far i have the knowledge from watching and reading tutorials online that everything is rendered in triangles ~ polygons basically.
So it was only recently that i noticed that almost every ( if not every) mesh has X amount more triangle than vertices?
How is that possible, when we know that a triangle requires 3 vertices, but in this case, there are many more triangles than vertices, even for a simple plane mesh?
regal stag
and i'm not entirely sure if this is the right channel for this... but i figured...
Neighbouring triangles can share vertices
sinful veldt
how can i stop my objects changing color when i change skybox color? does it has something to do with the skybox shader?
indigo frost
Neighbouring triangles can share vertices
That makes sense, but my original thought was that there is extra vertices to accommodate the fact that there need to be more information for the normal vectors of the faces
I'm not sure how to works, i'll probably have to check it out.
regal stag
That makes sense, but my original thought was that there is extra vertices to ac...
That is correct, if normals (as well as uvs or vertex colors) do not match there may be more vertices in the same position. A plane all has the same normals though so can easily share the same vertices.
For more 3D models, the vertex count will change when imported into unity depending if the model is "flat" or "smooth" shaded. Smooth meaning the normals are averaged for all connecting faces/tris so can share.
regal stag
how can i stop my objects changing color when i change skybox color? does it has...
Check the Lighting window. Ambient lighting might be using the skybox as it's source
spare wedge
Hi, it seems like when I create a material with the hdrp/lit shader I have an option that I can control called based uv mapping that I can change to planar, I've created a shader (with shadergraph btw) and I would like to have the same option is there a way to do this ? thx for your answer
regal stag
Hi, it seems like when I create a material with the hdrp/lit shader I have an op...
For planar mappings you can use the Position node (probably Absolute World space). Split and take two of the axis into a Vector2 node (which ones depends on the axis wanted. R/X and B/Z would project from the Y axis for example).
Can then use that in nodes with a UV input, like Sample Texture 2D. If you want to control it from the inspector you'd probably need to use a branch or keywords to switch between them.
spare wedge
For planar mappings you can use the `Position` node (probably Absolute World spa...
ok i'll try it
it worked thx
meager pelican
I am still confused about the SetFloats function
Padding is just extra filler to meet a required size. D3D/HLSL specs demand a size of float4 multiples for the ComputeBuffer.SetFloats() function to set the data in the buffer.
So use a float4. Better yet, instead of unused padding, pack some other data in there. You can also have a struct with 4 floats in it. Or 2 float2's or whatever, but keep it at 4 x float boundary sizes.
silver moat
Hello there. I was wondering if there was any way to implement a "supersampling" effect when making a procedurally generated shader without a texture.
I can't quite wrap my head around as to how to do so...
low lichen
For each pixel, divide it and do the calculations on the divisions and then average them together?
meager pelican
Off the top of my head, since it is computationally generated ?mesh? (you don't generate a shader) or ?texture? you can sample pixel offsets. Imagine that you're sampling at pixel centers now. So integer-pixel-location.xy + (.5, .5), you could also sample at, say, So integer-pixel-location.xy + (.25, .75), and +(0, .25) and + (.25, 0)....
paper oar
can someone help? #🤯┃augmented-reality message
meager pelican
@paper oarIDK much about AR but I can tell you you'll want to get the camera feed (probably via API) and then use the AR toolkit to blend your shader over that. Not blend that over the shader. At least I think. I'm sure someone will chime in. May take a bit.
little fossil
hi anyone knows how to write simple sprite 2d shader i just want to swap colors, sprite itself will be white and i just want to change color like it sarts full red then becomes more and more blue in example picture its going just down but like for me direction is not even locked it can be any direction just to look nice.
Something that i can feed just colors and it will swap to next and next ...
paper oar
the thing is - there is no ar tolkit on that platform
meager pelican
So you're screwed.
paper oar
@meager pelican there is only camera - thing of that plarform as a webgl
you have video
but you need to manually blend in the Unity camera
into it
meager pelican
If you can get the render texture, you can overlay on top of that with a camera. Or manually with a blit-combine. But AR toolkits do magic things with issues like worldspace depth from photos.
@little fossilWhat pipeline (I know you're going to say URP, I can almost feel it coming, lol)
little fossil
i dont even know waht URP is but am using Unity2018, prefebly some shader that will work on mobile
paper oar
what I have right now = 2 camera setup - one camera purely for streaming with renderteture and it sees on the far back - a renderer of the webcam - it works as you've desribed - the problem is - my render is too far away an when object shold sit on the surface - it is not sitting in properly
@meager pelican
meager pelican
"sitting" comes from the AR toolkit that you don't have.
I think. Not an AR expert.
Maybe someone else will know. 🙂
meager pelican
i dont even know waht URP is but am using Unity2018, prefebly some shader that w...
OK, so standard pipeline, in 2D mode? OK, sec.
little fossil
yep 2d for sprite
meager pelican
Note that sprite colors usually come from vertex colors.
But you look like you want to override that anyway.
You can get the built-in shaders for your version of unity here:
https://unity3d.com/get-unity/download/archive
little fossil
that answer for me right, ok will check ty :)
silver moat
Off the top of my head, since it is computationally generated ?mesh? (you don't ...
The shader I am working on generates lines in a truchet pattern, and I would like them to not look so much like sharp pixels when looked at from far away
little fossil
@meager pelican you gived me link for downloading unity??
meager pelican
So you want to do your own anti-aliasing.
So "jitter" it and average the results.
silver moat
Yes, I was wondering if I could do such math within the fragment shader itself
meager pelican
You do it now, right?
silver moat
I do it now? I don't get what you are asking but, yes I do have the shader made. But when I look at some object with a material using said shader from far away, it looks... well, like how you would look at something with 0 mip-maps, a mess to the eyes
What I am using thus far to generate the pattern is the UV that comes with the object, which for the moment are cubes/cuboids even though I want to try projecting it from above later
I keep searching for how to implement antialiasing on a fragment shader but every example I have seen implies that I am using a texture
little fossil
hmm am kinda confused now
what shader i need to create, anyone know some tut about 2d shader for swaping colors
meager pelican
@silver moat I see. Yeah, you're probably dealing with anisotropic filtering issues too.
silver moat
Ok, to illustrate a bit further
This is the pattern my shader generates
When I look at it from far away, however, it stops looking so nice.
At least compared to, say, the floor, which comes from a textured material
meager pelican
Are you mapping that to anything round? Is it alway square?
To tell you the truth, you're better off generating that to a texture. Mapping the texture to a quad. And then letting the GPU deal with all that stuff...mips and anisotropic stuff...in silicon. It's built for that.
But YOU and your shader could still generate it.
That make sense?
silver moat
So what you're saying is... what I should do as a workaround is to output the shader into a texture, like a render texture, and then use that?
meager pelican
Yeah. It's not a workaround, it's a design feature. 😉
silver moat
That is indeed an option
meager pelican
But you can set the iso level on the texture filtering, and the mip levels.
And it will auto-magically work.
silver moat
I know, I know
If I don't manage to find the way I want to make it, I might try that in the end, then
I just wanted to try and make actual procedural textures without shader, like
meager pelican
It's a 1000 times faster in silicon.
It does all that stuff as part of the pipeline.
silver moat
I know somehow shadergraph has to enable it as output (I am writting my own fragment here, not shadergraph) because when I tried to do a grid, it applied filtering there
meager pelican
Screen space derivatives and stuff.
silver moat
Yeah but I don't understand how to apply those, is my issue
meager pelican
You can set sampler options.
silver moat
Sampler options?
meager pelican
In the sampler state. In SG
silver moat
I am not this well versed in shaders
Ah you mean Shadergraph
Yes, but thus far I have been NOT using Shadergraph
meager pelican
Yeah, or in the shader for vert/frag too.
silver moat
🤔
meager pelican
I'd have to look it up.
silver moat
And I'd have to go get dinner
Anyhow, I'll investigate further, thanks for the commentary
little fossil
hmm, can i now get help?
meager pelican
@little fossilWhat is the question? did you find their 2D sprite shader?
little fossil
no
@meager pelican there are standard shaders but duno how will it help me with my problem
i want to colorize white square betwin 2 colors
so i give my shader Red is your atm color move to blue like on img, ofc ower time
dont know how to split color a square
if i would know how to do that i can allwes change some variable to collor it full or half or change color
silver moat
Oh god
You're trying to do what the TF2 developers did for a color sprite
Which was featured in a video analyzing such code
You're probably asking to make an unlit shader, making it so that the fragment shader handles the input of the 2 colors and the angle
You can work it out using the UV of your square, if it will always be a square, and working from the coordinates then
The lower left corner would be 0 0 and the upper right 1 1, and so you can write your own fragment shader to multiply the texture you're sampling depending on the values of X and Y
meager pelican
Start with the standard sprite 2D shader. But in your own shader.
Then in the frag(), decide on the color based on the Y value, like Naxum just said. Or whatever you want to do. But you want to start with a sprite-shader base, basically.
silver moat
Quick and dirty example of what you might want to try is this, I think:
(the line where col is declared is to be ignored, it's what the template had)
little fossil
ok i think i know maybe what you all takling about :)
normal sable
Hey guys! I made this question some time ago and I couldn't find anywhere something that could help me. So, rephrasing the question, in URP how I can inject a shader pass to ALL scene materials with clip function in a custom dissolve effect. This is different to Render Objects feature, as it re-renders each object in the scene with the specified material.
grand jolt
Hi, anyone knows how I can apply a shader to a UI image so it's like an overlay to the Source Image and not replacement?
(using URP)
nvm figured out, duplicate the element, apply the shader with aplha
silver moat
@grand jolt alternatively, use only a material and no image. You can put the "image" texture (not sprite though, must be texture) into the material as a parameter.
grand jolt
<@456226577798135808> alternatively, use only a material and no image. You can p...
makes sense, but since these are UI elements, I would need to have multiple materials this way
I think its better to keep 1 mat and simply dupe the images
grand jolt
yeah
silver moat
Sounds rough, good luck with it
grand jolt
silver moat
Oh I see what you mean
grand jolt
🙂
grand jolt
@silver moat this is what I was aiming for. Thanks for trying to help. Much appreciated.
silver moat
Pretty neat
meager pelican
The normal is the pixel location relative to the center. So take one world-space location and subtract the other, depending what direction you want the vector to point. (Inside or outside). Normalize it.
float3 theNormal = normalize(WSCenter - WSPixelLocation);
Or the other way around.
vagrant fossil
Hello
I need help with a shader which I need to be self-illuminated and there is no way to make it self-illuminated.
meager pelican
None of that is what I said. Nor what you asked about before.
You asked for a normal. I repeat:
The normal is the pixel location relative to the center. So take one world-space location and subtract the other, depending what direction you want the vector to point. (Inside or outside). Normalize it.
float3 theNormal = normalize(WSCenter - WSPixelLocation);
Or the other way around.
rare charm
I know almost exactly nothing about shaders so bear with me. I have a UI Panel that I want to use as a filter so everything I see through it is black/white. But I can put stuff between it and the camera and it won't be black/white. Kind of like looking through a monochrome window. Is that the right way to do it and what do I do to make a shader that accomplishes it?
The panel will always cover the whole camera, so I expect I'll start with a grab pass, but after that I'm lost.
meager pelican
What pipeline are you using?
rare charm
With pixel art I don't have to think about thi stuff lol
Whatever the default is, and if there isn't a default i don't know
but I'm happy to find out
meager pelican
So I assume standard pipeline. So, good, you can do that grabpass you were talking about.
To output the B/W color, there's a formula. I think there's a macro for it too.
But the code goes something like:
rare charm
Do I use a standard surface shader?
meager pelican
IDK off the top of my head for UI, probably something UI-ish.
You should research, because I'm going to bed. :p
rare charm
I made a few shaders ages ago in Blender but everything is much different than 10 years ago
meager pelican
Google it please, it will save me the effort. There will be links.
So find a UI shader.
Then:
Unless UI already gives you a background, but I don't remember that. I don't do too many UI shaders.
The formula is (looking, sec):
rare charm
wait I forgot shader graph is a thing
meager pelican
inline half Luminance(half3 rgb)
{
return dot(rgb, unity_ColorSpaceLuminance.rgb);
}
// Convert rgb to luminance
// with rgb in linear space with sRGB primaries and D65 white point
half LinearRgbToLuminance(half3 linearRgb)
{
return dot(linearRgb, half3(0.2126729f, 0.7151522f, 0.0721750f));
}
These are in UnityCG.cginc (may vary on your version).
Note that it is different for linear color space vs gamma space
Then do it with nodes if you use SRP/SG.
I think there might be a node for that already.
rotund flame
Hello all. I am working on a game using 2Dlights and 2d sprite lit and unlit shaders. When i cook the game for playstation 4 and test the game on the console, all my shaders appears as purple boxes, and i cant see the 2d lights either.`I added the 2Drenderer to my universalrender pipeline, but i don't know if i miss something. Someone has info about it?
clever saddle
Hey,I just started to learn shader,but I knocked into a problem on the first day
Why I click the plus button but it doesnt work?
vocal narwhal
ShaderGraph currently only functions with URP and HDRP, so you need to have either of those installed and configured in a project
Instructions for both are pinned to #archived-hdrp
indigo frost
Is it possibleto achive something like per face shading?
grand jolt
Greetings, I'm experimenting with the position node from shader graph and I'm not sure if this is intended but the texture that I want on my object is being tiled heavily, it's a large texture 2048 and also tried 4096 but both tile beyond my screen resolution which seems strange, appreciate the help
I tried all the different settings under the position node and World seems to behave somewhat like I expected aside from the tiling issue
hearty stump
@indigo frost you might want to start with a triplaner shader and expand on it.
It will require a lot of calculation from the vertex to fragment but if you are familiar with matrix calculation it will help you out.
Because for each face you will need to get the verts that's making that face and color it based on those verts
meager pelican
@grand joltYou don't usually feed position into the texture mapping routines, you feed the UV coordinates.
Try deleting the Position node and letting it default to UV0.
Then the tiling and offset variables will control...well...tiling and offset.
Position is the object's position in some-space. Such as world-space location in the game world.
Unless you're trying to map textures to worldspace.
grand jolt
@meager pelican Thanks for the reply, the reason I was going this direction is due to damage I want to project onto the surface, this needs to have the same section of image otherwise it looks really bad, previously I was able to mask using some python code but I've moved from metallic surface to fabric and the same approach isn't viable
Here is an illustration of what I'm trying to achieve and the result so far (I change the projection color a bit for example purpose)
meager pelican
Is it possibleto achive something like per face shading?
Yes. You mean like "flat" shading? Not per-pixel, but per face? Sure. Self-shading based on a flat normal.
Now ask me how to do flat normals. lol.
meager pelican
Here is an illustration of what I'm trying to achieve and the result so far (I c...
Man, You're confusing me. Do you want the thing tiled or not?
grand jolt
No I want to remove the tiling hehe
meager pelican
Did you try deleting the Position node?
grand jolt
Without it looks like this
indigo frost
Yes. You mean like "flat" shading? Not per-pixel, but per face? Sure. Self-s...
I did something of my own
grand jolt
Which is to be expected since now I have a large surface and small one each with the same texture
indigo frost
i did look it up and i landed on this little thing
but i'm not exactly sure the math behind it
meager pelican
Triangle normals from derivatives! Good. Cool. That'll work.
It's taking the DDX and DDY (change in x and y position) of the triangle, and doing a cross product and transform of them to build a normal vector relative to the pixel. Basically DDX and DDY come "for free" because the GPU tracks that stuff to figure out mip-mapping and stuff.
So it "knows" the adjacent pixel's results and the current pixel and can tell "the slope".
indigo frost
I still don't think i understand it just from this
Maybe something visual to help me paint the picture would be better
but that is besides the point here. we got it to work, even though i don't understand it fully, but it still doesn't really look like i want it to.
I know i am asking for a lot but, can you maybe give me a few pointers on how i can get my result to look like the thing i want?
This is mine:
and this is my goal:
meager pelican
Hmmm
The top one (yours)...I can see wrinkles in it. Is that due to the normals you calced?
The bottom one (goal)...is more like overlapping blended triangles.
Not really normals.
indigo frost
I'm not sure about the bottom one, i have no idea how it is achived
i just looked it up on google and decided it looked cool and i wanted to basically remake it for some UI stuff
i wanted it to feel alive so here is what i did
low lichen
@indigo frost Is this closer to what you want?
indigo frost
indigo frost
<@!286540460577652736> Is this closer to what you want?
I mean, i'll sattle
the mesh i made in blender
and did some random transform on the verts
Again, i'm new to shaders and this stuff in general
meager pelican
The goal-one is layered. If that's what you want.
meager pelican
Like that. IDK how they did it exactly. Maybe with 20 different examples we could figure it out.
But it doesn't matter.
You want something that you like the looks of ("Looks cool").
Do you want it to dynamically change based on lighting?
Like changes when it moves, or the light moves?
indigo frost
I'm not sure about lighting
it's not necesarry
it's main goal is to serve as a UI background
Basically either is fine
But mostly, yes. Something that has vertex displacement and looks dope
meager pelican
Is the texture available (not copyrighted?, or you don't care if it's not commercial project or you're just messing around?)
You could just use that texture as the background directly.
indigo frost
texture?
meager pelican
The pic you just posted (the goal pic).
indigo frost
There is no texture here....
meager pelican
That's a texture.
indigo frost
It's just a random google serach image
meager pelican
Yeah. texture. 😉
meager pelican
I mean, you can make a texture in a graphics editor and map it to your BG
It all depends. If you don't care about lighting...why modify verts and do calcs?
Do you want it to move or change?
indigo frost
I don't want it to be static
i want to "move"
not in x,y or z
but basically up and down, so the lighting on each face changes and so does the color accordingly
that was my approach
this
meager pelican
OK, so you DO care about lighting!
See the image @low lichenposted above?
indigo frost
mhm
meager pelican
OK.
indigo frost
Like i said
meager pelican
The first one you posted (goal) was layered.
This one you showed is moving.
Not layered.
indigo frost
i used lighting because i HAD to
not that i need it
i just had to use it to achive that effect
indigo frost
ok
meager pelican
Then we could theoretically add more layers on top. And blend
indigo frost
Mhm
meager pelican
So you want to do your vert displacement like you're doing, based on some displacement texture. And you're going to change the offsets of the displacement over time, scaled by some rate. Or recalc the displacement somehow.
Then you can use the lighting calc to get the lighting value per triangle.
indigo frost
Ok
meager pelican
I can't quite make out the displacement stuff in your graph. But generally you can multiply the displacement by some scalar value to give it a displacement-strength. You might want to add that so your "wrinkles" get higher.
indigo frost
Brb
meager pelican
A float.
indigo frost
Well but that would mean that they are static and not moving
meager pelican
Scale. Height.
The movement comes from tiling/offset...later.
Different from scaled height.
So add a variable that scales the height strength (the offsets). So it could be 1x for normal (what you have now) or 2x for twice as much, or .5 for half as much displacement.
indigo frost
So from what i am understand is that you want me to control the factor of how much each vertex is displaced
meager pelican
So you can see it. It's very faint right now.
indigo frost
If that is the case, i can just add a float multiplied by the vector3 i want to add to the vertex's position
like this?
I'm wrong, arent' i?
meager pelican
Not necessarily, depending on values you have. Usually, you displace a vert along the normal direction in cases like this. But the object's normal is "up" for you if you don't rotate the plane. Does that make sense?
So you're adding to the object-space Y value some scaled displacement from the Veroni texture.
indigo frost
well i only want to displace it in the objects Y dir
meager pelican
So it depends on what that vector3 comes in as on the left. If it is (0, 1, 0) you're gold.
indigo frost
Actually for whatever reason
i just noticed after you pointed it out, but it's (0,0,1)
And it looks as it should, but if i change it to (0,1,0)
it breaks
indigo frost
Anyway, yeah
meager pelican
But scale it. Did it make the wrinkles better? Higher?
indigo frost
it tried tweaking the displacement factor
it looks like am monster
shadows are kind of going all over the place
meager pelican
That's OK, we can see the polygons now at least.
So it scaled. 🙂
One step at a time.
indigo frost
i just want to point out that that was a displacement factor of 35
and this is of 1
meager pelican
Well the 1 is not too bad, but it doesn't look like the pic you posted the first time.
indigo frost
What i am trying to say is that besides the shadows, it's acutally not all that different ~ it's not what i expected
meager pelican
The first one was:
#archived-shaders message
indigo frost
Anyway yeah, back to 35 we go. The main problem that i see right now is that i am super dependant on the directional light tht i am using
if i tweak the angle just a bit
the difference shift in almost everything is immense
meager pelican
How could you not be?
But you could use a different light just for this if you want.
We'll check your lighting calc next.
indigo frost
How could you not be?
But you could use a different light just for this if you w...
By lighting calc you meant this right?
meager pelican
Sure? I mean, that's up to you. You're using a lit-graph, right?
indigo frost
For the shader? Yes
meager pelican
So it "knows" about that light.
Adds code in.
By itself. Behind the scenes. Ish.
meager pelican
Or you could just pass a direction vector and calc something yourself.
The thing is you may want your own light for this, in case you want it to change and "move" and not be the same as the scene lighting. IDK, up to you.
But in that case you'd want an unlit graph and decouple it from the scene lighting. IMO
indigo frost
So just for context
this is aimed to be a background for the main menu of a game
the camera is going to be looking at it and nothing more
when a level is loaded, this wont be there
meager pelican
OK. You might want to up the ambient light level in the lighting settings to make it smoothed out.
indigo frost
Hum
meager pelican
So to make it move, you need to add tiling and offset to your texture read of the voronoi vert texture. Probably based on time, or some other xy values you pass from C#.
indigo frost
No wait, it's already moving
i have that...
the vets arre moving up and down
Is this what your talking about, or am i missing something here
meager pelican
Yeah, fine, if it's moving it's moving.
I couldn't really read the "big" one it was too blurry.
For me
So if that's working, fine.
So are we closer now?
indigo frost
Yeah
I think everything is mostly done
i just need to figure out the lighting and make i layered
but i can't seem to put my finger on it... it looks kind of wrong if i do up the ambient light
meager pelican
I'd have like 3 different layers and some color tints.
