archived-hdrp

[rocky crest]

I did switch back to URP because I thought it was a pipeline issue but it was my fault

[dry turtle]

it's PCSS

Change Angular Diameter in the Sun light

or set the directional shadows filtering quality on medium

[errant quail]

Thanks

[long scarab]

you should also check shadow cascades in your volume override.

[earnest herald]

Hey, all. I’ve been having an incredibly annoying issue where whenever I turn around in my scene there’s an immense lag spike.

In the Unity profiler, I found that Gfx.WaitForPresentOnGfxThread would have a very high runtime whenever this’d happen, indicating that my program is GPU bound.

However, when I tried to profile this again with Nsight to see what could specifically be causing the lag, it showed results indicating that the lag is being caused by what looks like seemingly nothing. Nsight Systems was also giving weird results and saying that the lag comes from the CPU rather than the GPU for some unknown reason.

Have any of you encountered anything like this before? Attached are some screenshots from my profiling data

[earnest herald]

Another thing of note is that, on the render thread, the “self” time on the render loop itself is incredibly high. Would be lifesaving if any of you guys know why this could happen

[hollow tangle]

I'm a performance optimization nerd, but still new to Unity/Game Dev as of July this year. That being said, your 2 best friends here are the Rendering Debugger and the Frame Debugger.

Rendering Debugger, I would try disabling settings on the Main Camera one-by-one and see what the impact is.

When you turn around, is it turning to any specific part of your scene or just turning anywhere?

[eternal laurel]

What does the gpu profiler in Unity say?

[south girder]

Do you have VSync enabled?
I mean it shouldn't cause 140ms spikes.. but just checking

[earnest herald]

Hey all, thanks for the prompt responses. Will give an update shortly

[earnest herald]

Fiddling around with my VSync settings hasn’t resulted in anything, unfortunately.

[earnest herald]

I tried to toggle many of the options here but it hasn’t seemed to have done anything. What’s weird is that disabling all of the object types from the debugger does nothing but disabling the GameObjects does make a difference. I imagine this’d normally suggest that I’m CPU-bound, but what’s weird is that Unity keeps pointing to the GPU

[earnest herald]

I have a pretty dense spot on the map I go to in order to recreate this issue and just look in any direction. Relative to other areas that don’t currently lag like this, the triangle count is quite low (approx. 10m) but there are a lot of unique meshes with relatively high vertex counts and a lot of textures used. Not sure if these would be contributing factors, especially since these should all be batched

[earnest herald]

Here are the GPU results. They’re weird, I see no reason why these methods would lag any more than they normally would when I turn around (based on what I currently know about how Unity works)

[eternal laurel]

Hmm QuadTree is the terrain rendering

If you turn off the terrain does the lag spike disappear?

[earnest herald]

That’s true, but I do still get the issue even when I disable the terrain

[eternal laurel]

What spikes then ?

[earnest herald]

In the editor it just says that it’s the editor loop itself that’s causing the spike, but I’d have to check what it is during a build. Will get back to you about that in a minute

[eternal laurel]

Oh I get random spikes in editor all the time I only profile builds at this point. Unless the perf problem is consistent.

That depth prepass is also very interesting I wonder what it’s rendering

[earnest herald]

What’s also weird is that all of this profiling information doesn’t line up with Nsight, which claimed that all of the processing time during the spikes was spent doing nothing and that the GPU ran all of the rendering code as normal as soon as the spikes were finished

[eternal laurel]

Profile a build

Or turn off the scene view

Editor needs to render both

Might be that

[earnest herald]

Profiled the build and got this, would either be the depth prepass or the GBuffer taking up the most time during the spikes

[eternal laurel]

Hmmm and it happens just by turning? Not turning towards a specific area ?

[earnest herald]

It happens when turning in almost any direction in a specific part of the map. The only characteristic thing about the location is that it has a lot of unique, high vertex count meshes. But, the total triangle count isn’t very high.

[hollow tangle]

My naive approach would be to experiment with disabling a small number of items in this area to see if it’s related to a specific game object or set of game objects.

Is there a separate volume in this area with different overrides?

[earnest herald]

Tried to disable certain sets of objects already, but none in particular seemed to be causing all of the lag. There are no volumes active either besides a global one, and turning all of the overrides also didn’t help

[hollow tangle]

So is it just when you're turning in this area? What if you are facing the area and not moving?

[tacit fox]

this footage is from #1180330435151147028 all credits to him it looks really good

how can i get my volumetric lights to be this strong

you could taste those light rays

best ive managed is this

you can see them but theyre pretty subtle

[dry turtle]

Local Fog Volume

[earnest herald]

@eternal laurel @hollow tangle @south girder Thanks for the help, all 🙏 Turns out it was an issue with having a lot of vertex buffer uploads in one go. If you guys know any way that could be reduced aside from reducing vertex counts, that'd be amazing.

[marble surge]

hey, is it possible to add emission to volumetric fog custom shaders used on a Local Volumetric Fog component in HDRP? Their fragment only has Base Color and Alpha but we want to add some subtle illumination to the fog so its always visible, even when you are outside of its bounds and there is no directional light.

[scarlet hull]

No, as the fog buffer only contains a color and density (alpha) value.
The "emissiveness" of the fog is made by a light, so if you want to you can add a simple point light with no shadows in your fog volume.
You could also fake the emissive fog with a purely custom shader (on a regular mesh).

[marble surge]

Thanks for your reply 🙏
I suppose we can't use light layers for local volumetric fog right? We'd only want the point light to affect it and nothing else.

Using a purely custom shader on a regular mesh is a nice idea but we do have a directional light that moves on a day cycle and adds rays to the fog that we'd want to keep. Also, we use a custom material to add noise and wind to the fog.

[scarlet hull]

Yes it should work, with the light in a layer that has no object.

[marble surge]

I don't see a setting on a Local Volumetric Fog component for rendering layer. I also realised this will probably cause the same issue we were trying to avoid in the first place - having only the fog above ground "emissive" and not underground.

[scarlet hull]

Yes, it doesn't have a rendering layer setting as it writes to the camera fog buffer, like I said, it is not directly affected by lights.
But if you set a light to a layer where no other objects are affected, the lights should only light the fog.

[forest oar]

Nice! thanks for sharing 😄 But actually that is the demo scene from my package in the Unity asset store named: Mossy Cedrus Forest.

I also have a video in my Youtube channel where you can see all the process: https://www.youtube.com/watch?v=eYHExphd-Wk

[tacit fox]

do you make your own vegetation or do you buy/ user other peoples

i want to try make some trees that dont look shit so i can have my volumetric lighting looking absolutely delectable

[forest oar]

As a publisher in the Unity asset Store I need to create everything from scratch, Textures, models, etc.

here is a project in Artstation with the objects that I scanned for the package: https://www.artstation.com/artwork/8bdxNm
it took me around 9 months to finish this

[tacit fox]

i dont want to be that guy but i dont have the budget to buy assets

do you know any good places i can learn to do this?

[forest oar]

I need to create everything from scratch because I must have all rights to sell the assets

Artstation just made the Learning site free for all : https://www.artstation.com/learning
Here you can find some nice tutorials about Speedtree. That could be a good start.

[tacit fox]

thanks man i really apreciate it

[forest oar]

when Artstation was acquired by Epic Games they decided to make all of this information available for free, but also you can be found tutorials about Zbrush, substance and many more.

[forest oar]

For sure!

[dim arch]

I have realized that adding an extra camera shown on a rendertexture is a big performance penalty, and I am now wondering what else I should do. I know that you can disable some custom render passes, but from what I've seen, it still heavily impacts performance to simply have another camera w/ rendertexture to the scene.
I'm using it for some world space UI stuff. Perhaps I should change it all to use World Space Canvas's instead? But I don't see how I'd be able to have effects on those, like flickering scanlines or static noise. (Trying to mimic a static-y CRT screen, for example), since you can only add shaders per UI element. Maybe a transparent UI element layered on top of everything, that adds the shader stuff?
How do games do this in HDRP? I couldn't find any solutions or recommended approaches on google, so i'm pretty frustrated

[shrewd moon]

An example might help get an idea what you're doing

[dim arch]

Mostly just UI Canvas's that are viewed with a camera, where the camera is then applied to a rendertexture in order to apply shaders to the whole thing (the rendertexture shaders)

[dry turtle]

When I bake lighting I only get baked shadows, but no realtime shadows. I'm using Shadowmask mode and mixed directional light. What could it be?

[smoky sapphire]

Hey so i got my HDRP Lit material set up, but the detail map is not showing up no matter what. I tried it with a couple of textures and nothing works.

[stoic sand]

Do you happen to also have a Mask map applied to the material?

[stoic sand]

could always render that camera at a lower FPS

is that camera literall only rendering Canvases? You are certain its not rendering fog or other geometry by accident?

[smoky sapphire]

Yeah

[stoic sand]

Does it work without the mask?

I think there might be a bug in hdrp where usign a mask cancels out the detail

[dim arch]

Tried lowering the framerate, but its not exactly ideal if it can be replaced with a WorldSpace Canvas (they don't even seem to be impacting FPS at all so far, not sure how they work under the hood though)
And yeah my cameras are only rendering UI layers

[dry turtle]

@shrewd moon sorry, but I think you know what to do

[shrewd moon]

I check the lighting channel first ^^
You would need the Distance Shadowmask rather than Shadowmask

[dry turtle]

I use Distance Shadowmask

[shrewd moon]

Then the most likely explanation seems that your shadow distance is too low
The shadows under the character's shoes look like screenspace/contact shadows to me

Not actual shadowcasting visible in the scene at all

[dry turtle]

it's around 300 meters. And yeah, these shadows are contact

but I need shadowmap

[shrewd moon]

Well, for whatever reason there are no shadows

[dry turtle]

any ideas?

[shrewd moon]

In theory Distance Shadowmask* uses realtime shadows up to shadow distance, and falls back to baked shadows beyond it

[dry turtle]

it was this option

now it works

[shrewd moon]

Technically I think that setting shouldn't interfere with shadows in this way at all
And what I'm seeing here looks like shadowmasked shadows, not distance shadowmasked shadows

But if you're happy with it that's what counts

[dry turtle]

yep, I want baked shadows to blend with real-time shadows

[dawn sorrel]

Is it true that hdrp can blend between shadow cascades?

[mortal forge]

What exactly do you mean by blend? It does IIRC perform a basic interpolation between them, but it doesn't guarantee a perfectly smooth transition

[dawn sorrel]

im targeting pc only and my shadows on urp are awful im wondering if porting to hdrp would help

[mortal forge]

Do you have a screenshot? Shadows on URP shouldn't be awful by default

[dawn sorrel]

Shadows cost me either 200fps or flicker like mad and have low resolution.

[mortal forge]

Good looking fully realtime shadows will always be expensive. The only 'real' benefit HDRP offers which from memory URP doesn't (but it may do now, worth checking) is to use cached shadow maps, which gives the ability to mark objects as static shadow casters, which makes them render their shadowmap into a cache once, and not every frame.

If you don't already, look into creating shadow-only LODs - they help performance for high poly model shadows by quite a lot.

[shrewd moon]

Yes
Customizable border fade for each cascade that's smoothed temporally

HDRP is unlikely to help with your performance problems though

[dawn sorrel]

Shadow only LODS will cost additional drawcalls. Is there any way i can debug if this is going to help me or not

[shrewd moon]

I don't think it'd be another draw call
The meshes used for shadow casting are only rendered in the shadow pass, whether they use the same renderers or not

URP and HDRP shrug off draw calls anyway thanks to SRP batching

But it doesn't affect shadow rendering one way or another

[dawn sorrel]

Okay it does help me. I gained lot of FPS after replacing lod shadows with cubes (100+). thanks for pointing me in the right direction @mortal forge, @shrewd moon
Now i have to somehow make shadow lod meshes

[eternal laurel]

Thats called shadow proxies

[lyric plover]

how do i fix this, the lighting is ass in some places, even after i baked the lighting it's still black

[stoic sand]

are those supposed to be geometry? looks like they either arent marked static or somehow the UV's got flipped around

[shrewd moon]

Or they might lack normals
Hard to guess

[lyric plover]

the bed is one object only and doesn't have any normals flipped, the ceilling is just probuilder cube

[lime hearth]

tried to replicate the atmosphere of do androids dream of electric sheep

[lyric plover]

found out on the bed it was the normal map problem but idk why, it's happened before where the light wouldn't be visible on normals maps that were 1, and as i'm writing this i realised that none of my normal maps texture types are set to normal map..... it kind of works now but the ceilling is still black

[nova apex]

good or bad ?

I spend only 30 minute for this

[lime hearth]

Incredible for 30 minutes

[nova apex]

really ?

[nova apex]

To be honest, I'm new to this and I'm glad to hear this. 🙂

[pale sigil]

I've imported the Unity Manufacturing Plant into Unity 6.0
It looks great except for the workers and robot arms. They glow! I think it's related to the reflection probe.

Is there a recommended solution to fix this, without breaking the rest of the scene's rendering?

[hollow tangle]

Find the Global Volume. Turn off HDRI Sky.

[pale sigil]

That did it! Thank you.

[silk flicker]

anyone know why some areas are so dark in my hdrp scene

[pale sigil]

I load a remote Mp4 video from a remote URL. This works in 2022 Unity Built-in renderer.

In Unity 6 HDRP, an encoding error is thrown:
Color primaries 0 is unknown or unsupported by WindowsMediaFoundation. Falling back to default may result in color shift.

With a remote video source, is there a way to correct this at runtime in Unity 6.0 HDRP?

Windows 11, Standalone, Unity 6 same result with DX11 and DX12.
Used this ffmpeg command to add a profile to my remote video, but no effect. Audio is heard but no video:
ffmpeg -i input.mp4 -color_primaries bt709 -color_trc bt709 -colorspace bt709 -color_range pc -vcodec libx264 -profile:v baseline output.mp4

[errant quail]

Hi guys sorry to be a pain, but i have a question. I have a scene, as shown, with 16 lights 8 baked, and 8 realtime, ive had to do this as when i use the player in the game, it doesnt get lit by my baked lighting so i use real time aswell as the baked as baked looks a lot nicer, however this drastically reduces my frame rate, is there any way around this? I would ideally want to keep the baked lighting aswell.

[pale sigil]

Hi, are you using light probes? It should be possible to use all baked lights with probes 'painting' your player with light. The non-moving objects should be set to 'static'.
Here's an example of how much light probes can do the work instead of realtime lights. I use light probes throughout, except on the stage lights.
https://youtu.be/JyYSM4XRfHo?si=bsjvQRUsxngvG1ZZ

[errant quail]

Ahh ok I will have a look into them

Makes sense

Thank you

[lyric plover]

does anyone know how to get the ceilling to receive the light from the area light and not from the outside directional light?

[shrewd moon]

No kind of light illuminates surfaces that are facing away from it, at least not without some variety of bounce/indirect lighting
Why would you place the light above the ceiling anyway?

Your simplest solution is to use a point light instead, and move the light into the room

[lyric plover]

wouldn't a point light create a bad looking white points on the ceilling?

[shrewd moon]

Potentially, but you have to use each type of light in a way that makes sense for that type anyhow

[lyric plover]

i mean it looks kind of weird now, somewhat like a low budget game made with built in renderer

[shrewd moon]

I don't know what kind of lighting you are expecting exactly
It may be better to try to emulate a specific kind of lamp, than to throw stuff at the wall to see what sticks

[lyric plover]

hmm imma try some things out, thanks

[shrewd moon]

The lights have a lot of settings to tweak, and HDRP has many different varieties of lighting
But using them with specific intentions and goals is important to get a good result

[lyric plover]

👍

[eternal laurel]

Welcome to the wonderful world of interior lighting. https://docs.unity3d.com/2019.3/Documentation/uploads/ExpertGuides/Create_High-Quality_Light_Fixtures_in_Unity.pdf

https://ieslibrary.com/

[lyric plover]

thanks

[wise pawn]

So...when do they plan to fix this preview bug? It has been in Unity almost a year...When you have static lighting sky enabled it makes the preview windows unusable...all is white...when you turn it off all is ok. I already reported the bug, they responded that they know about it and after a half a year its still there. This is just embarrassing...

[dry turtle]

true

[hollow tangle]

I haven't seen this myself. How exactly do you reproduce it?

[wise pawn]

For example creating a new hdrp project on recent versions of unity does this... Or enabling hdrp and enabling static lighting sky and changing it to physically based sky in lighting tab... (which is done by default if you create new hdrp project)

[hollow tangle]

What preview are you looking at? I don't think I see that in any of my projects and some have physically based sky.

[wise pawn]

Any preview of any asset... The preview that shows up when you click on one of your prefabs for example

Are you using recently released unity?

2022 or version 6?

[hollow tangle]

Yes, .26

6000.0.26f1

[wise pawn]

why are some of us affected with this bug

I even tried uninstalling everything, just basic new version of unity, create new project, selected hdrp preset = preview bug...

Currently there are 2 versions of unity 2022 being offered as recommended for some reason, the newer one has this bug and the older doesn't... It seems like they know they broke something so they offer these 2 versions, but that's just my conspiracy theory lol

[hollow tangle]

So are you saying it only affects 2022 or you see this in 6 as well?

[wise pawn]

Both are affected

[hollow tangle]

Ok. Can't say I've seen it so far

[wise pawn]

Did you enable static lighting sky in lighting tab?

[hollow tangle]

Yes

So what specific preview doesn't work? I click where exactly

[wise pawn]

You can see this bug even on the default unity material...it happens on every model/material that can show up in the preview window...Its frustrating, because you need to turn off static lighting sky for it to work properly, but there is a chance you will forget to turn it back on when generating lighting and the generated lighting will be incorrect and it will waste your time...Also it only happens when the directional light intensity is set higher. If the directional light intensity is very low, the preview displays objects correctly.

[hollow tangle]

That would be super annoying. Glad I haven’t encountered this yet.

[wise pawn]

I thought that everyone would have this bug, because I saw some people having it as well, but it seemed really weird to me that almost no one was talking about it...But now it looks like this bug happens only on some hardware...i have RTX3080

[primal stratus]

Trying out HDRP for the first time in Unity 6 and the empty example is just crashing to the desktop

whats the requirements to run it? I've ensured my GPU is up to date

[scarlet hull]

A bit fussy but : https://unity.com/how-to/getting-started-with-hdrp

HRDP is currently compatible with the following target platforms:

Windows and Windows Store, with DirectX 11 or DirectX 12 and Shader Model 5.0
Modern consoles (minimum Sony PlayStation 4 or Microsoft Xbox One)
MacOS (minimum version 10.13) using Metal graphics
Linux and Windows platforms with Vulkan

What are your specs ?

[primal stratus]

AMD Ryzen 5 3600 6-Core Processor 3.60 GHz
16.0 GB RAM
RTX4060
Windows 10 22H2

[scarlet hull]

Shoud def work.
Maybe check the logs if there is valuable infos ?

Or, randomly, delete the library folder of the project 🤷‍♂️

[primal stratus]

Dont know whats changed but its no longer crashing out

i've lowered the graphics settings to performat and now it seems more stable

i think it might be my CPU

[hollow tangle]

There are some known issues with DX12 and Unity 6 HDRP and some unknown factor. I experience it on my laptop, but not my dev workstation. Support was unable to specify the root cause, but the solution I found was to disable DX12 as soon as I start a project. Otherwise the editor crashes in the first few minutes. Check your editor log.

[primal stratus]

were would i find that setting? Found it

I'm getting expected performance from empty scenes but it crashed again when changing my quality level in the project settings.

re-opening the project and running the scene doesnt result in a crash

it's very odd

i made sure that Unity isnt being limited in the NVIDA control panel

[primal stratus]

crashed again when just changing the settings

[scarlet hull]

Could you share the crash log, and maybe also the editor log files ?

[scarlet hull]

Isn't there a xxx.log file ? this json is not easy to read 😅

[hollow tangle]

Project Settings > Player > Graphics APIs for Windows. This may not be your specific issue. Definitely check the editor log first. "C:\Users<yourname>\AppData\Local\Unity\Editor\Editor.log" after a crash.

[primal stratus]

sorry i dont have a file that has .log

\AppData\Local\Temp\Unity\Editor\Crashes

Would anything frm here be useful?

[jaunty saddle]

Hi! I'm working on UI and I have a problem with colors. I create every sprites as a white and apply a color in Unity. But the color in GameMode looks different. To compare that, I was create a image in color #161311 (on the left) and this looks good but when I put the same color on white sprite, looks bad.
Anyone have idea what is wrong?

I'm working in HDRP in version 2022.3.21f1

This is the things what I'm tried:

• change RenderMode in Canvas
• change Space Color to Gamma (default I have Linear)
• turn off every PostProcess and Volumes
• unchecked sRGB (Color Texture) in Import Settings
• change Unity version to 2023

I also upload screenshots of what it looks like

[pale sigil]

I have an idea. Two of them. Depending on the mood, I suggest:
A. A window off-screen that is an area light the size of the window, with window frames in front to cast shadows. Ensure Baked Global Illumination is on and Indirect is selected. The walls and furniture should be set to static.

2. Add table lights and maybe colourful 'intelligent' lights around the space, and do a baked GI. Lights should have an offscreen source or onscreen sources to look complete.

[junior grotto]

hey in unity 6 i have a problem that when i bake the lighting the blue like fog appears? i dont really know here's the screenshot with baked lighting and without

i dont want that because it makes every texture blue (look at the floor)

[dry turtle]

this is the sky reflection

place the reflection probe in the box and bake it

[junior grotto]

i have a reflection probe in the box

[dry turtle]

are you sure it's baked

can you show the cubemap preview

[junior grotto]

yeah gimme a sec

[junior grotto]

yeah it is

in the cubemap it looks fine

[gentle moat]

Hi, im unity beginenr and i have an issue with my details (like grass and flower) in unity hdrp in game it look like this and idk what it is can you help pls!

[primal stratus]

Just an FYI encase anyone else asks about the same issue.

I pushed all the crash logs and dumps into GPT and asked it to give me trouble shooting steps. Most of it was garbage but it did point out

this ->> HDWizard.Window.cs Attempt to access invalid address

I made a FRESH install of my GPU drivers and the engine nows seems to be pretty stable

i've even stress tested with 4k and tones of lighting

edit - @scarlet hull thanks for the help also

[smoky sapphire]

Shouldnt this show me my scene?

[smoky sapphire]

nvm fixed it

[long wagon]

!warn 1004878391083806751 You've been told multiple times to use #1180170818983051344 to post devlogs.

[hoary star]

b0gd5nch1k has been warned.

[jaunty dune]

Hey, I'm struggling a bit to figure out how to properly sort two-sided grass meshes for the terrain in HDRP. This is the same mesh with two different materials on seen from two different sides. A is how I expected it to look, while B is the issue. I assume this has something to do with lighting. I included the material settings

[terse flicker]

Hi, I was wondering if there's a way to overlay a reference image onto a camera like in this video?
https://www.youtube.com/watch?v=u1kdFzJRzmo

Essentially all I want to do is to have it so the camera in the scene has an image overlayed over the top with transparency so I can match up perspectives when blocking out things to the concept art I have. If you want an example from Unreal Engine, I can pull up one of my projects from it and show.

[minor depot]

It's definitely possible to write a simple custom pass to do that, but unfortunately it's not a built in feature.

What render pipeline are you using?

[eternal laurel]

You can use the storyboard feature of cinemachine for this. Or you know just slap a image on a screen space canvas.

[terse flicker]

Yeh I just chucked a image on a screen space canvas lol. It was the easiest way to do it. Honestly didn't even consider Ui being a way to do it due to UE5 being a postprocess thing for it

[terse flicker]

All good, I got it working. Thanks for the reply though

[outer geyser]

You can't use transparency for objects like that and get proper depth testing, set the surface type to Opaque.

[jaunty dune]

Ah, that makes sense! Thanks a ton 🙏

[mortal forge]

How does everyone manage changing HDRP settings at runtime? Seems less-than-straightforward

[scarlet hull]

For some things you need to change the quality level.
For other, you can do it by enabling/disabling things in the frame settings of the camera.

[mortal forge]

Thanks, guess that's the route I'll go down. Was hoping to keep everything static and not require any (or, barely any) GO or component refs but not the end of the world

[frail tendon]

So I have a custom raytracing renderer that uses mainly compute shaders for the rendering, and it works great in play mode, but in scene view it’s just… weird
The view is constantly skewed and I don’t know why
My best guess was something to do with the cameras projection matrix(since I use that to generate rays), but I still couldn’t figure out a fix
Does anyone know what’s happening and/or how I can fix it?
Image is an example, tbe white shape you see is the plane rendered, and the outline is where it should be
If I make the scene view window tall enough though, it becomes correct which is extra weird

[minor depot]

Where do you get the camera matrices? That definitely seems wrong. I have a similar compute based raytracer that works fine in scene view.

[lime hearth]

dlss ultra performance looks better than native high taa lol

[mortal forge]

Wild guess, something to do with HDRP's camera-relative world transform

[frail tendon]

I tried Camera.current, I tried ctx.hdCamera.camera, same thing for both

[frail tendon]

yeah....

[dry turtle]

do you test it in the editor

[outer geyser]

@frail tendon are you passing the camera matrix from a script? I had a problem with doing camera based things in compute cause no matter what I tried the camera position updated very slowly in the editor. Almost like Unity tried to conserve power and cached the command buffers instead of invoking the update callbacks on the render pipeline and editor scripts every frame.

[frail tendon]

Ahhh yeah

[tight stump]

Can someone please explain to me where I input my bump map, displacement map and roughness map in the HDRP/Lit material? Im losing my mind. The diffuse/normal works, but I just cant get the other maps to work properly. I’ve baked all the textures in blender. Im very new to unity, but very comfortable in blender

[hollow tangle]

HDRP Lit uses a channel packed texture called a Mask Map. https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@17.0/manual/Mask-Map-and-Detail-Map.html?q=Mask map

You need to set a Displacement Mode to expose the settings to use a displacement map

[tight stump]

Thank you! But what does a detail mask and smoothness translate to in normal 3D terms? Is that bump and roughness?

[hollow tangle]

Smoothness is inverse roughness

[tight stump]

So the roughness map needs to inverted?

[hollow tangle]

Never used detail map/mask before

[hollow tangle]

Yeah. I use Simple Bake in blender. They have an HDRP preset for their PBR bakes. This does the channel packing

[tight stump]

Gotcha, I use simplebake as well, ill try that

[tight stump]

How do I get the simplebake HDRP preset?

[tight stump]

Huh. I dont have that

[tight stump]

Did you download the preset from somewhere?

[hollow tangle]

Nope, it came with it. Are you on teh latest?

[tight stump]

Wierd. Yeah im using 1.7.8

[hollow tangle]

Check: C:\Users**<your user name>**\AppData\Roaming\Blender Foundation\Blender\data\SimpleBake

I know he had some recent issues with conflicting add-ons. He may have blown up the presets as I can see the rest of mine are missing. Regardless, here's what you need to set I believe.

[tight stump]

Thank you!

[tight stump]

If I make a map inside of blender with all kinds of assets and then import the map as an fbx into unity. Do I really have to re-bake all the assets texture maps to work with chanel packing? And then afterwards re-connect all the textures to all the different objects? (Im using HDRP/Lit). This seems insane

[outer carbon]

@lime hearth Use #1180170818983051344 to showcase your work.

[lime hearth]

Thought it was allowed to do this here, I had already did once. Sorry

[mortal forge]

Any gotchas that might be causing culling in the HDRP render loop to be completely tanking CPU-side performance? 15ms profiling a proper standalone build, and have seen this quite consistently despite trying a bunch of settings tweaks.

[onyx lark]

Try setting your terrain's position to [0,0,0]. Does the blur go away?

I had this problem in an older version of Unity. Motion blur was completely wrong if the terrain was moved away from the origin

I don't believe it happens anymore for me

[onyx lark]

Do you have a huge number of objects in the scene? It's spending all of its time on culling.

[mortal forge]

Markedly less objects than I have had in other scenes I built using BIRP and Unity 5 back in the day with very high performance, so my answer to that would be no.

[onyx lark]

I'm curious about what's going on in OnWillRender

That's a Unity message that gets sent right before an object gets rendered

[mortal forge]

It's looping through every tree and setting a wind shader value from the looks of it

[onyx lark]

It's only a fraction of the total time, but overhead could be making up the rest of the time

[onyx lark]

I thought that you just used a single global property to do tree wind, huh

[mortal forge]

So did I 😅 but that's what the callstack says

[onyx lark]

If you do it per-tree, that'll add up really fast

Are you using a custom tree system?

[mortal forge]

Yeah all of that is 100% Unity-side terrain code so where I am leaning towards is the usual "I'll have to rewrite the terrain system a bit to manually handle trees and grass"

Nope - very standard

[gilded warren]

Hi I have some issues with skybox in HDRP

I want to use night skybox

[gentle moat]

yeah it does thank you so much !!!!

[gilded warren]

With night light

Moon light

But it is not working

Is there any link about night scene in hdrp

Tutorial?

[eternal laurel]

https://github.com/Unity-Technologies/FontainebleauDemo it’s a older code but it checks out.

[frail tendon]

In HDRP, is there a way for me to automate switching the current render path to deferred from a script?

[shrewd moon]

I expect the same way you'd do it in URP, since you already have a method for that

[scarlet hull]

The "base" way is to change the quality level (and so, the current render pipeline asset)

What you can do however, is to set you render pipeline asset to lit shader mode to "both", and in you camera, use a custom frame setting where you can choose forward or deferred.

[onyx lark]

Yep! That's how I did it at one point

(I was letting a friend test if Forward vs. Deferred had any performance impacts on their machine (it didn't))

this also massively inflated my build size

[unreal heron]

Why is my vegetation unlit on a part of the map like this, same tree , when placed on left looks normal, but looks odd and unlit on the right side.

*There is no special area volumes in scene

[crisp spear]

Hi. I'm having a bit of a problem with lights and the underwater effect. I have to pretty much put the intensity to float max limit to make it work.

Which is bad as it makes objects closer to the light blinding bright

Is there a way to increase the range to make it work like the first picture without increase the intensity by a lot?

Tried setting up tonemapping to ACES and Neutral, still didn't work.

Not being affected by the volumetric fog also does nothing

[scarlet hull]

That's just how light works. If in addition to that spot light you have the sun (directional) light affecting the scene, you indeed need a very high intensity on the spot to make it outshine the sun.
And the lights follow a square attenuation rule : every time the distance doubles, the intensity is divided by 4. That's why when the light seems "ok" at distance, it is very bright when close to the object.
Usually, automatic exposure can take care of this, lowering the overall brightness, so try to tweak auto exposure.

If it is still not enough, you could alway implement a script that casts a ray in front of the light, and changes the intensity based on distance.

[crisp spear]

When messing with automatic exposure, it also dims the spot light?

[scarlet hull]

It dims the whole screen.

[crisp spear]

Yeah, so it doesn't help much. I think I'll try the script.

Taking out the direction light does improve a bit

Don't need to use the float max limit

But it is still so annoying that there isn't simply an option to increase range without dimming the light

[scarlet hull]

You can use the "lux at distance" unit.

[crisp spear]

ty for the suggestions

[scarlet hull]

But it will still do the same thing : to has the same illumination at double the distance, it needs to quadruple the emitting intensity.

[crisp spear]

It is better

[rose vault]

What's the problem with my custom render pass setup?

No it's not the render mode. I changed my HDRP rendering path to forward and the warnings disappeared but it looks the same.

So my player, which is what the custom render passes are for, is too bright and shiny, like he is not illuminated in the same scene. Also, he is somewhat transparent, so you can see some objects behind him.

I copied these settings from an article giving advice on how to solve clipping in HDRP but it doesn't work fully for me. Hopefully it's just a setting change.

Thanks.

[crisp spear]

Found the perfect IES profile

[scarlet hull]

For the error, could it be that the current active render pipeline is not set to forward ?
For the brightnesst, I'm unsure, could you post a screenshot ?
And for the transparency .... is it that you are seen the AO through the objects ?

[rose vault]

well I changed it to forward and there doesn't seem to be a difference

here is a short clip

[scarlet hull]

But "which one" ? You might have multiple render pipeline assets in your project, as it is possible to assign one to each quality level, that overrides the default one.

[rose vault]

high quality, as it's the only one I use for now

here is a short clip

you can see:
a) my hand is too bright, it's supposed to be black
b) you can see shadows moving while the hand is rotating

[rose vault]

if it was AO, I would assume it wouldn't happen if I change injection to after post process

it happens at all injection points

the first one that triggers the bright model is before pre refraction

before that, it seems like the color is rendered properly

[scarlet hull]

No, as AO is not a post process in HDRP.

You can try to disable SSAO to compare.

You could try to :
Split the custom pass in two :

1. injection "after depth and normal", would be your current first custom pass that always overwrites depth
2. injection "after opaque and sky", would be your second pass that actually draws the object.

The first one would overwrite the depth buffer before AO calculation, so should properly get rid of the AO ghosting.

[rose vault]

Thank you, I will attempt that

Do I need both custom passes for both volumes

For always and less equal?

I do have ssao so it could be that

[scarlet hull]

No, 1st pass in 1st volume, 2nd pass in 2nd volume

Oh, 1rst pass could also probably use the "depth only" shader pass

[rose vault]

Thank you

I will try

[crisp spear]

Eh, I give up. It is either too bright or not enough.

Remy, you mentioned the ray approach, but is it even possible?

Because what about when this happens?

I.e the light hits one object close and another far away

or multiple objects in the light's cone

I think I found a good solution. For a tps, the flashlight can't be too narrow. Make it wide enough and it looks way better.

[rose vault]

I am also working on an underwater game with a flashlight and it looks fine on my end

I can check the settings when I get home

Though mine is at nighttime and it's completely dark, maybe that's why I have bo issues

But I can still check

[crisp spear]

Yeah, I got some things working, but still would love to see your setup.

[scarlet hull]

You can maybe cast multiple rays in a cone shape and do some average ?

[onyx lark]

Perhaps you need to adjust your tonemapping

If your light is looking too bright in some contexts and too dark in others, you may need to change what "bright" and "dark" are (:

but yes -- as Remy said, that's just how light works!

I've actually had the opposite problem in a built-in RP context -- my flashlight looks way too bright at a distance compared to how it looks up-close

[rose vault]

Well that got rid of the shadows, but clipping is back, the thing I am doing this to avoid

seems like it's not rendering after the terrain with these settings

wait that shouldn't be the case. ''After opaque and sky'' for drawing IS the right injection point

maybe it's one of my settings

First one is after opaque depth and normal

[sacred veldt]

someone knows why on unity 6 when material has type Subsurface Scattering its just black?

hands

upgrading from unity 2021

[south girder]

Does the material have a "diffusion profile" property and is it assigned?

[sacred veldt]

yea it is assigned

[crisp spear]

Ok, but why is no fog giving me a better fog effect than with, well, fog?

This is with fog off:

This is with fog on

Unless I'm going crazy and seeing stuff

[south girder]

Are you sure theres no other volume with fog enabled?

Or if its enabled in the default settings (I think thats a thing)

[crisp spear]

I ended up using fog

Just used a higher value for the volumetric effect in the spot light

But it's weird nonetheless

[crisp spear]

I am using two boxes, but the underwater box has a higher priority

[south girder]

If you just disable the fog in the higher priority volume then it will use the fog of the lower priority volume

If it has one

I wish all volume effects had this "Enable" toggle so you can keep the override active but the effect disabled... So that lower prio volumes don't turn it on

[crisp spear]

Interesting

Thank you

[crisp spear]

Is there a way to brighten just one object/material?

Got some good ambient going on, but as you can see, the "model" (I know I don't have one yet, but hear me out) gets obscured too

So you can only see the sillouete

(nvm the quality of the screenshot, film grain is causing it)

I could try to brighten up the whole scene

but would like to know if there are options

Nvm, found it by randomly trying different overrides: "indirect light controller"

Also forgot I could use light layers... huh, HDRP is really powerful.

[crisp spear]

What is the equivalent of setting the environment lighting source to color in HDRP?

[onyx lark]

use a Gradient Sky where all of the gradient colors are the same

e.g.

I dunno if there's a simpler way than that

[pale sonnet]

Hey all, any Idea on how to fix this?

[onyx lark]

Are you trying to switch a project to using the HDRP?

It looks like you've installed the package, but haven't configured anything in the project settings yet

[pale sonnet]

Yeah that's exactly what I did

[pale sonnet]

I didn't realize you had to switch the entire project over. Is this actually the case?

I'm just trying to enable alpha clipping and the video I'm following uses the HDRP node setup to do it

If there's a simpler way then I'm all ears

[onyx lark]

You...probably aren't intending to completely switch render pipelines, in that case

Did you originally have this material set to use the "Standard" shader?

[pale sonnet]

Yes

I clicked the little dropdown to swap it to HDRP/Lit

[onyx lark]

If you want alpha clipping, just switch to Cutout

i presume you found a video about how to get an alpha-tested shader while using the HDRP

[eternal laurel]

Switching to hdrp to enable alpha clip is exactly like shooting a fly with a 120mm anti-tank howitzer

[onyx lark]

we got the fly

Each render pipeline has its own shaders

[pale sonnet]

I did that earlier and it did nothing I'm afraid

[onyx lark]

well, you also need to use a texture that has areas of low alpha

[onyx lark]

Cutout will skip any pixels with a low enough alpha value

[pale sonnet]

I'm trying to cutout the black

and I've set the threshold to min and max and nothing changes

[onyx lark]

If the texture has an alpha of 1 in every pixel, then nothing will happen

[pale sonnet]

Yes all the black areas have alphas of 0

atleast I believe this to be the case

[onyx lark]

Show me the importer settings for this texture

You can also make sure there's an alpha channel by looking at the preview window with the texture selected

click on the "A" to view the alpha channel

[pale sonnet]

I'm braindead

I just found the solution

thank you so much

[onyx lark]

what did you change?

[pale sonnet]

I didnt have this set to input texture alpha

[onyx lark]

ah, that'll do it

[pale sonnet]

Thanks so much again mate

[onyx lark]

You also might want to turn on "Alpha Is Transparency". This will make Unity fill in the transparent areas with the nearest color

Otherwise, you can get weird artifacts when it samples the texture at a low resolution

the fully-transparent pixels can still have color data in them, and that color data might look weird when it gets blended in

It also makes the preview look correct :p

checked on the left, unchecked on the right

[pale sonnet]

Thank you

Also while I have you here, if you dont mind me asking, is the process the same for making a semi-transparent glass texture see through?

[onyx lark]

No, you don't want to use Cutout there.

Cutout means that every pixel either:

• Renders 100% opaquely
• Gets skipped

You will want the Transparent rendering mode.

[pale sonnet]

I created a transparent material but now its a bit too transparent

Here's the intended grime and murkiness I'm going for

[pale sonnet]

Thank you for the breakdown btw

extremely helpful for future reference

[onyx lark]

That just needs a higher alpha value.

[pale sonnet]

Is that in this menu?

[onyx lark]

you could increase the alpha on the base color -- it's only about half right now

Beyond that, you'd need to increase the alpha on the texture itself

Also, you probably don't want a smoothness of 1 -- this will make the surface perfectly reflective everywhere

Ideally, you would have the grimy spots have a lower smoothness

[pale sonnet]

Ah thank you so much!

It looks great now

Really appreciate the help mate

[onyx lark]

no prob (:

if you have other questions, ask them over in...

hm, where would you put general rendering questions for the built-in RP

[pale sonnet]

no clue dawg

maybe shaders for general questions?

but whatever

thanks again!!

[crisp spear]

It doesn't work the same :/

[onyx lark]

how so?

[rocky latch]

Having an issue where shadow maps will sometimes randomly take 18ms on the GPU. Any ideas?

It’s back to normal the next frame

[echo pine]

Is there any way to make Unity wait for all path tracing samples to complete without affecting deltatime

I don't want to show progress of rendering samples to a player

[primal wren]

Path Tracing is awesome in CGI environments. I used image sequences in editor (not in runtime) to capture animations of camera and rigged characters frame by frame. Tedious work but end results are awesome.

[mortal forge]

What DoF are you using there?

[primal wren]

DoF?

[primal wren]

Oh you mean Depth Of Field. The depth of field was just an effect in filmora.

It’s called diamond blur

[vital locust]

anyone know whats up with my ssr?

[eternal laurel]

Ok I'm stumped. The exposure is set to a fixed 4.5. The lights is at 10k lumens. Yet it is super dark. Anyone got any ideas ?

[hollow tangle]

No other volumes?

[eternal laurel]

Nope the active volume according to the render debug is the correct one

no blending going on either

[scarlet hull]

Shadow issue ?

Does it do the same if set to punctual, without shadows ?

[eternal laurel]

Shadows have nothing to do with it I would say. This particular light is set to render shadows on Demand and the shadow atlast was cleared. I just wanted to get the emission right first.

you are suggesting everything is in a giant shadow somehow ?

There are numerous lights in the scene all ranging from 10k to 30k lumens

[scarlet hull]

I had in mind that the light was somehow blocked, so if it has shadows enabled it isn't actually lighting the scene.

[eternal laurel]

First one is the scene with -1 exposure second one is with 4.5. I would expect that the lights with the values I mentioned would be enough for 4.5 but they are not. I'm either having a setting messing with me or I do not understand exposure at all.

[scarlet hull]

Can you show the exposure settings ?

[scarlet hull]

But it's not only the spotlight, right, the other ones also are not "powerfull" enough ?

To be sure, also override the compensation with 0.

[eternal laurel]

I already tried that comp was 0 in the volume value in the rendering debugger. None of the light are "powerfull" enugh

this is with the exposure at 4.5 and the intensity to 3000000 lumen

Now correct me if I am wrong but this is about 23 times more powerfull than the Earts sun

[scarlet hull]

Well, the sun isn't mesured in lumen I think 😄

[eternal laurel]

lumen lux tomato potato 😄

[scarlet hull]

(Or, it could technically, but I don't want to do the maths)

But yes, it is a very high value 🤔

[eternal laurel]

The reflection probe for example looks okey to me

[scarlet hull]

Do you think you could share the scene (in pm), because I don't know where to start to look at here, having it on hands would help.

[eternal laurel]

sure I can

[scarlet hull]

That probe has an exposure of 0 displayed here, maybe you should try that ?

[eternal laurel]

try what setting the fixed exposure to 0 ?

[scarlet hull]

yes

[eternal laurel]

well that obviously brightens things up

if I set it to -1 it starts looking like how I want

[eternal laurel]

the question is why does it have to be that low

I'm confused thats just for the preview on the probe is does not affect baking or anything

[scarlet hull]

It's the probe preview, yes, but that value is the exposure compensation of the preview.
If you look at an outdoor probe with pbr sky lighting in day it would display full white with that value.

[eternal laurel]

I still do not understand why my scene requires a 3 million lumen light to shine on it with a exposure of 4.5, a value that would typically be used for indoors/interiors

[scarlet hull]

Mi neither, that's why I asked if you could send it 😅

[eternal laurel]

Ah you want me to send the scene over. I thought you wanted me to share the screen or somethign hah. Hmm separating the scene from the whole project would be rather difficult.

[onyx lark]

Does this behavior persist in a new scene?

[onyx lark]

It feels like you have a post-processing effect that's doing an exposure adjustment. But you said you don't see any other profiles in the...rendering debugger?

I'd be looking at the Light Explorer

The rendering debugger does let you see the computed values for every volume component, but I don't think it lists all of the active volumes

[hollow tangle]

It actually does. Volume > Camera > Component shows the configuration of an override by default, srp asset and volumes with the result

[onyx lark]

Ah, it does show you every profile that's affecting the volume component

I named mine very boring things like "Scene Style Profile" and "Exposure Volume Profile" and mistook them for something built-in, haha

[river coral]

i have no clue if this is the right channel to ask, or even what im asking is the correct name

i want to port this texture painted terrain i did in blender, i used an rgb mask and a shader to display into unity, i cant find anything about doing this on a custom mesh other than using a tool called "polybrush", it feels awfully clunky and would prefer to work in blender and just port it over anyway

if rgb mask is the incorrect term im referring to the same effect unitys terrain texture paint uses

im hoping there is a similar option in unity like what i did in blender by using a mask with rgb values representing different textures and materials

[scarlet hull]

Polybrush is a tool to paint the mesh vertices color, while the paint tool in blender paints textures.
And in general, the texture has a higher definition than the vertices.

You could just export the mesh from blender, with the "terrain mask" map, and recreate the same node setup in unity with shadergraph to have similar mapping.

If you want to use Unity's terrain tool tough, you still can. You need to export a .raw heightmap, the mask, and load it on a terrain object.

[river coral]

i will try recreating the shader node, and id like to use unitys terrain but theres a few reasons i cant for my purpose

[river coral]

does hdrp not support metallic image maps?

[peak finch]

it still does but the format is different

in unity standard the format (BIRP) is
RGB = Metallic
A = Smoothness

in HDRP it still supports it but its mapped in the texture differently

and the name is different to reflect that, mask map

[river coral]

aaaaaa darn

can i just color grade this image into red? would that work

[peak finch]

if your trying to map only the metallic sure

[river coral]

yea i only need metallic

thank u thank u

[peak finch]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@13.1/manual/Mask-Map-and-Detail-Map.html

more details here for the record

[eternal laurel]

It’s not color grading. The metallic is packed into the red channel of the mask texture.

[frank gull]

anyone have any tips on making the ray traced reflections match the shading of the object? these brighter areas should be darker

[dawn sorrel]

im extremely new to unity and im trying to learn everything by myself but i dont know how to slow down the time node. how do i do it?

[hollow tangle]

Should post in the Shaders channel. My guess would be plug it in to a multiply node and multiply by something like 0.2

[dawn sorrel]

my bad. also thanks

[dry turtle]

Hey. How do I modify the camera frame settings through the code? I tried this, but nothing happens

public void SetBloom(int bloomBarValue)
{
    _frameSettings.SetEnabled(FrameSettingsField.Bloom, false);
    
    data.bloomQuality = bloomBarValue;
    
    Save();
}

The function itself works

[meager hinge]

Got this error when I opened a HDRP project, reinstalled the packages and got the same errors. Is there any way to fix this error? Or will it not affect anything?

[rocky latch]

I'd assume RTGI is broken but other than that shouldn't cause any issues

[grand ledge]

i everyone i got a question, i have a car with a particle system on the wheels that emits smoke when the car is drifting but when the smoke hits the camera, the worlds brightness is going down but if i move the camara away from the smoke, it goes back to normal.
Another thing i noticed is, in scene view, when i look down, the world is much brighter but when i start to look up everything is getting darker
How can i fix this

[south girder]

Sounds like you have the Exposure post processing effect with mode set to Automatic

This is "eye adaptation", it changes the exposure based on the image brightness

So either tweak that or use fixed exposure

For the smoke you could use a shader that fades the alpha out when closer to the camera. This way it's not as distracting

[grand ledge]

Thanks i will try it out

[hollow umbra]

Can anybody give me some advice?

How can make more horrorrrrrr

[eternal laurel]

Does anyone have any idea on my issue described here ? https://discussions.unity.com/t/confusion-about-how-to-use-hdcachedshadowmanager/1568872

[eternal laurel]

Horror is a feeling, not something that can be quantized and measured. Horror is what I think lies behind the door, not how it sounds or opens.

[hollow umbra]

oh thx

[gilded warren]

Hi I am using HDRP. My anti aliases option is not showing. My pixels are not correct any other option to make them correct. Or show my anti aliases button

[eternal laurel]

MSAA option is in the pipeline asset while the other AA’s like temporal are on the camera

[gilded warren]

okay I will try this

[scarlet hull]

I think you didn't take the best approach here.
Instead of forcing the lights in and out, I would :

1. For ach light in the list
2. Check if it registered in the cached shadow atlas (so, trust the auto atlasing that prioritizes lights by distance)
3. If it is, request shadowmap rendering.

So you will only refresh cached shadows on lights that are affecting the view, and the request rendering should automatically also refresh it in the atlas.

[eternal laurel]

"Check if it registered in the cached shadow atlas (so, trust the auto atlasing that prioritizes lights by distance)" Wait thats what I am manually doing in my code...

[scarlet hull]

What I see is that you are force removing all the lights, and fore adding them again.

[eternal laurel]

Well that is more for editor tooling so artista can refresh their shadows based on where in the scene they are

This is the actual runtime logic of my light manager

        {
            Transform t = lightTransforms[i];
            HDAdditionalLightData d = lightData[i];

            float distance = Vector3.Distance(t.position, cam.position);
            float dot = Vector3.Dot((t.position - cam.position), cam.forward);

            if(distance > d.shadowFadeDistance && dot < 0) // Light becomes a eviction candidate
            {
              //  Debug.Log($"Distance to light:{t.name} is:{distance}");
                if (!_evictionCandidates.Contains(d))
                {
                    _evictionCandidates.Push(d);
                }
            }
            else if(distance <= d.shadowFadeDistance && dot >= 0) //  We want to potentially render this light if it is off. 
            {

                if (!_activeLights.Contains(d)) // Light is not in atlast or rendered at least once
                {
                    if (!shadowManager.WouldFitInAtlas(d)) // We do not have spare room so we evict one light
                    {
                        if (_evictionCandidates.Count > 0)
                        {
                            HDAdditionalLightData de = _evictionCandidates.Pop();
                            _activeLights.Remove(de);
                            Debug.Log($"Evicting:{de.gameObject.name}",de.gameObject);
                            shadowManager.ForceEvictLight(de);
                            shadowManager.ForceRegisterLight(d);
                            Debug.Log($"Requesting shadows for:{d.gameObject.name}", d.gameObject);
                            d.RequestShadowMapRendering();
                            _activeLights.Add(d);

                        }
                    }
                }
            }
        }```

[scarlet hull]

I had the LightHasBeenPlacedInAtlas(HDAdditionalLightData) in mind.

[eternal laurel]

But if I just call RequestShadowMapRendering() on all lights that would re-render the static shadow maps as well right ?

I want to potentially only render static shadows once, not every frame the light is close

[scarlet hull]

I'm pretty sure you shouldn't have to wory about forcing the CachedShadowManager yourself, just managing the call to the lights shadow request should be enough 🤔

[eternal laurel]

does the CachedShadowManager remove far lights by itself ?

[scarlet hull]

IIRC, yes. Like the normal shadow manager and atlas, it's just a "secondary" atlas.

[eternal laurel]

let me try that real quick

[scarlet hull]

(Hopping I'm not wrong 😅 )

[eternal laurel]

you mean as simple as this for (int i = 0; i < lightTransforms.Length; i++) { HDAdditionalLightData d = lightData[i]; if (shadowManager.LightHasBeenPlacedInAtlas(d)) { Debug.Log($"Requesting shadows for:{d.gameObject.name}", d.gameObject); d.RequestShadowMapRendering(); } right ? Just making sure we are on the same page

[scarlet hull]

Yes

[eternal laurel]

So this does not change the lights that get requested as move trough the level

it just re-renders the first 16 lights that fit into the atlas every frame

RenderShadows also increased so I guess it re-renders the static shadows when you do RequestShadowMapRendering() but that is expected

I do know from my previous debugging that LightHasBeenPlacedInAtlas returns true even if I force evict the light

At this point Im thinking it would be easier to just enable disable the lights and have their shadows set to OnEnable

With perserveShadowAtlasSpot or what ever it was set to false

I think the system was designed more for that

But the question on how to manage the shadows for the artists remains

Changing the type at runtime feels wrong

[eternal laurel]

Ah you actually need to disable the light data object not just the light 🤣

But this works like I intended in the first place

[unborn forge]

I’m getting a lot of flickering on my trees in hdrp and also weird tearing if I move the camera to fast and I don’t know what’s causing it

I don’t usually have this type of issue with trees or screen tearing in urp

[quasi bay]

has anyone faced an issue similar to this before? these are assets in HDRP that are downloaded from an addressable bundle. they keep flickering and flashing.

[scarlet hull]

Not related to asset bundles but : are you using an orthographic camera here ? It is not supported by HDRP.

[quasi bay]

well it still happens with Orthographic and Perspective. and the visual bug doesn't happen when the asset is imported directly , only when its downloaded as an asset bundle

anyway the issue is solved now, i was using Unity 2022.3.13 , i upgraded to Unity 2022.3.54 and it fixed the issue.

[wet bloom]

hey im pretty new to unity and i cant seem to get reflections to work does anyone know a fix?

[eternal laurel]

Would anyone know why the shadow rendering is broken up like this ? What causes the draw procedural to run ? Or is this just per light and there is nothing to be done ?

[keen tulip]

hello, im a beginner. can anyone help me to import hdrp asset to my hdrp project? im struggling to implement procedural fire 😃

[eternal laurel]

So I have this custom pass https://pastebin.com/C7UkfvmJ Problem is that it seems to break the use of CullingGroup that we use to cull our environment vfx. I've narrowed down the culprit to setting the culling params here protected override void AggregateCullingParameters(ref ScriptableCullingParameters cullingParameters, HDCamera hdCamera) => cullingParameters.cullingMask |= (uint)foregroundMask.value; It seems that because of this the static geometry is no longer considered by the culling group.

[eternal laurel]

So I managed to fix it by doing
ctx.hdCamera.camera.TryGetCullingParameters(out var cullingParams);
cullingParams.cullingMask |= (uint)foregroundMask.value;
ctx.cullingResults = ctx.renderContext.Cull(ref cullingParams);
in the pass execute but now I'm not sure if I'm not re-rendering the whole scene. Looking at the frame debugger seems to say no. but this adds like 1ms to the custom pass in order to do the culling

[eternal laurel]

Yeah I did not fix it

[mortal forge]

Why is your firstperson camera doing any culling at all? Can you not just disable culling completely/shouldn't it only be rendering the first person layer or first person renderers?

[eternal laurel]

It's not doing any culling

how ever the custom pass performs culling because it targets the main game camera, and when the custom pass renders the culling params of the main camera get fudged

resulting in the CullingGroupSendEvents sending a event that says the objects are visible

[mortal forge]

I'm a bit out of the loop when it comes to HDRP camera stacking APIs/methods but for instance, why do you need this:
ctx.cullingResults = ctx.renderContext.Cull(ref cullingParams);

[eternal laurel]

if we dont pass in the cull results nothing gets renderer because the culling mask is essentialy empty

ok so I 'm just fucking around and guessing at this point but doing ``` protected override void AggregateCullingParameters(ref ScriptableCullingParameters cullingParameters, HDCamera hdCamera)
{
hdCamera.camera.TryGetCullingParameters(out cullingParameters);

    cullingParameters.cullingMask |= (uint)foregroundMask.value;
}
    ``` seems to have fixed the CullingGroup issue while not increasing the cost of the custom pass

why do I need to essentially copy over the main cams params when the method was called AggregateCullingParameters is beyong me

[errant quail]

Should I avoid 'overlapping UV's' and how should i do this if I should - blender

[onyx lark]

Are you seeing this warning on a mesh renderer? That's a lightmapping problem.

You can have unity automatically generate valid lightmaps for you, given a minimum scale and a minimum lightmap resolution

https://docs.unity3d.com/Manual/LightingGiUvs-Reference.html

[errant quail]

Thanks, I've tried to let unity generate lightmaps for me but it just loads infinitely, and then crashed so I wasn't sure, but this will help

I must of done something wrong

[onyx lark]

Note that this isn't lightmap generation

This is a problem with the UV map that's going to be used for lightmapping

The problem happens when there's not enough padding between different parts of the lightmap, causing two different UV islands to use the same pixel

[errant quail]

Ah ok

[onyx lark]

I let Unity generate most of my lightmaps; in that case, you just need to configure this stuff properly

[errant quail]

Ok il give this a go thanks

[torn locust]

Hi, I have a question about using HDRP in a scenario like the one in the picture, where I'm trying to "light" planets in a solar system. The idea is that there is a sun that acts as an omnidirectional light source. However, with a point light it just won't work even at moderate distances (like within 100 units), even with range attenuation turned off.

For now, I am using unlit shaders and calculating lighting on my own, and it works fine. The problem is that if you zoom close enough, the game is supposed to bring you in a "planet mode" where a HDRP lit shader "takes over" (so a directional light is activated and far away planets are turned invisible). However, there are some discrepancies between my custom unlit lighting and HDRP's lighting model which are noticeable when the materials are switched through LODs (without considering different volume and exposure profiles).

I was thinking about faking a omni-directional light by having several directional lights each one following one of the planets currently visible. I think that even if one zooms very far out, there would never be more than a dozen planets on screen (moons would only be visible when fully zoomed on a planet).

Alternatively, I would need some way to "cross-dissolve" the two materials in some way. However, the LOD's crossfade is unsuitable for this because the transition happens when one is very close and the dithering is too much noticeable.

Has anyone looked at a situation like this?

[scarlet hull]

The point light approach should work, but you'd need "stupidly" high intensity values if you are doing stuff at a big scale. Note that it might be easier to use the "lux at distance" unit to tweak it.

Or like you said you could use multiple spot lights in box mode (basically, constrained directionals).

Finally, for the transition, maybe doing a custom approach would be enough, like setting the far-away planet material to transparent and lowering the opacity.

[frank gull]

Hello, does anyone know why I am having trouble with transparent SSR?

I enabled all transparent ssr settings to no avail.

I am testing with a lit shader.

Ray tracing and ssr work on opaque surfaces but after i enabled all the settings for transparent ssr, I still do not receive reflections on transparent surfaces

[worn vault]

does anyone know how to fix this, before I change stuff and ruin my project

[frank gull]

you need to enable it inthe project settings. search reflection and the checkbox should pop up

[frank gull]

#archived-hdrp message I figured it out

[hollow tangle]

Was there a competing setting for SSR Transparency somewhere odd?

[frank gull]

Basically

I feel like im in the cockpit in a presidential airforce one airline when tweaking settings in unity

theres a bunch of switches just to get the transparent reflections to work. what a mess, took hours to figure out

[frank gull]

is there a way to see the rt reflections from reflections on reflections?

[dry turtle]

Increase the bounce count

[frank gull]

i set samples and bounce count to max

and that did not change anything other than lower fps

[stoic sand]

might i suggest adding more light? Often times horror is about making hte player feel safe at certain points and then taking it away.
Look at the Game Alien:Isolation. It has lots of bounce lighting and soft gradients. Rarely is the game pitch black but its still damn terrifying

[hollow tangle]

There’s a demo that Unity’s former lead lighting tech artist did that showed this if I recall.

Edit: found it. https://youtu.be/ad9f_nKU0ZA?t=1020&si=dCow1d2HONuK5rmn

If you haven’t seen it you’re in for a treat

[hollow umbra]

Oh ur really smart

I'll try that thx!

[mortal furnace]

One question
Can I create an scene in a project 2D using the package "Render HD" and export the scene in a project HDRP?

[hollow umbra]

How about creating HDRP project and make 2D in HDRP

Anyway u can

Just change Render pipeline

[mortal furnace]

In other words, I have an project HDRP and I want create an game in 2D, but i don't know if is better create an project 2D using the package Render HD or create the game since the project HDRP

[hollow umbra]

Do create hdrp project

Actually both good

[frank gull]

The documention says there is a lens flare volume overide. But after following the instructions. To no suprise, its not there....

I am just trying to change the flare from bloom... Anyone got any tips?

[hollow umbra]

That's really strong lol

https://youtu.be/D9PDDOl6KS4?si=e_NZ2SNmaBEU_Rih

How about whatch this vid?

[frank gull]

I'll give it a shot but I am looking to change the flare from bloom, not the directional light

[hollow tangle]

Is it enabled? Project Settings > HDRP > Post-Processing > Lens Flares > Screen Space Lens Flare.

[frank gull]

i dont have all those option

[hollow tangle]

This is my ray tracing profile. Came out of the box like this in a new project.

[frank gull]

not for me 😦

2022.3

[hollow tangle]

Mind you, this is using the 6000.0.31f1 with the sample template

[frank gull]

i may have to update. does 6 still have problems with ray tracing?

[hollow tangle]

I'm about to find out. Because of your screenshots and a couple videos I saw yesterday I decided I'm gonna start playing with RT starting this morning.

[frank gull]

its nice. very performant on a 3080, too

[hollow tangle]

Strongly suggest you use the latest Unity 6 with the HDRP Sample template. It includes an interactive tutorial mode

In case there's anything you need more details on. Not specific to RT

[frank gull]

i see

I been learning as i go

Exteremley impressed with the capabilities of HDRP lately

[timid ibex]

Hi everyone. I've been trying to figure out why I can't get the data from a RenderTexture with high precision. It worked well with URP but ever since I've updated the project to HDRP, I'm unable to extract data into a texture with the precision I need. Both the Texture2D and RenderTexture are set to RFloat, but I can't get it to work. Anyone has a clue of what may be happening?

[mortal forge]

How are you trying to get the data?

[timid ibex]

like so:
` RenderTexture renderTexture = new RenderTexture(textureSize, textureSize, 0, RenderTextureFormat.RFloat)
{
enableRandomWrite = false,
filterMode = FilterMode.Point,
wrapMode = TextureWrapMode.Clamp
};

RenderTexture.active = renderTexture;
renderTexture.Create();

// Force the camera to render with current settings.
cameraRegion.allowHDR = false;
cameraRegion.allowMSAA = false;
cameraRegion.targetTexture = renderTexture;
cameraRegion.Render();

// Read the RenderTexture into a Texture2D.
textureMain = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.RFloat, false);
textureMain.ReadPixels(new Rect(0, 0, renderTexture.width, renderTexture.height), 0, 0);

textureMain.Apply();

// Collect raw data.
textureLocalData = textureMain.GetRawTextureData<float>();`

I've looked into the shader graph schematics itself, and HDRP's settings but I can't find anything relevant. I honestly don't know where to look at this point.

[frank gull]

I wouldnt be surprised if it has to do with a conflicting setting. Like my issue earlier I had to toggle a bunch of settings just to get one feature to work

Is there anything I can do to improve the ighting on raytraced reflections? I want them to look more natural in terms of color. Playing with the native settings does not help.... Any ideas?

Some of these bright areas only occur at glancing angles

[narrow cloud]

my water is not showing up why?

[frank gull]

im using hdrp but im sure it applies to other pipelines

[narrow cloud]

done that

[stuck dust]

where can you find Common.hlsl?

[dry turtle]

maybe your Water Rendering post process effect is disabled

find it and set the state to Enabled

[narrow cloud]

nevermind

[dawn sorrel]

Doing a fully 2D game in HDRP seems like a massive waste of resources and convenience

[frank gull]

I couldn't get ray tracing to work when I first updated so I went back to unity 2022. I'm sure it's not issues only for you though.

Realtime hdrp in 2022 can't complain. I've fixed all my artifacts. Don't see a reason to update now

Yeah you should probably wait for an LTS patch

Oh I didn't know they already made it

Well hopefully they fix it all. I don't want to deal with issues I didn't create

Honestly, a lot of things can be fixed with the right combination of settings

It's how I overcame most of my issues with lighting, materials, and post processing.

Well, as far as artifacts go, I fixed them

[dawn sorrel]

Of course, but there are internal bugs that you cant do much about, and thats my biggest problem with that version currently

[frank gull]

My only issue now is with TAA where there is motion ghosting

I'd get too annoyed to deal with their own mess, it's their job to fix

[dawn sorrel]

Yeah, I mean its free after all so I cant complain too much

[frank gull]

Yeah free is free. For something that has the easiest workflow out of all other engines it's still the best for new comers

In content creation

[dawn sorrel]

It definitely has the best, most optimised workflow

new comer or not, its still a major flex for an engine to have very good workflows

[forest oar]

Scene practice made in Unity 6 😄

[mortal furnace]

Why when I import a sprite (Background), I have this result in my scene?

[shrewd moon]

What "result" is that exactly?

[mortal furnace]

The light

It's rare

[torpid elm]

how long did this take to build 😵‍💫 i assume those textures are massive

[dawn sorrel]

Its probably exposure, you can change exposure to be fixed so that it stays consistent

[mortal furnace]

How?

[dawn sorrel]

In your volume settings profile

[mortal furnace]

Ok

[shrewd moon]

I have no clue what that means

[mortal furnace]

Te volumen?

[mortal furnace]

Well idk

I don't understand

[shrewd moon]

It'd be easier if you used clear language to explain what you expect
Looks like you should swap to fixed exposure as 0974 showed
You'll probably face more issues if you're trying to use HDRP for sprite graphics though, it's not really designed or intended for it

[mortal furnace]

Thanks very much

[forest oar]

this scene, like 2 days. Creating all the assets (Textures, models, scans) like 1 year

[onyx lark]

Automatic exposure means that the camera adjusts to the light level of the scene

If you have things in your scene that don't react to light at all (e.g. a SpriteRenderer), this produces very weird behavior

The brightness doesn't change as the exposure is increased

so it keeps going higher and higher

[mortal furnace]

Thanks

[shrewd moon]

@bronze hatch I couldn't find any concrete info or numbers in the documentation, but the way it usually works is that you can have a lot of lights and only when too many ranges are bundled up on screen they start getting culled by tile like this

That's almost 500 lights affecting the floor of the room at once

[hollow umbra]

how can i fix this bug

using System;
using UnityEngine;
using UnityEngine.InputSystem;

public class PlayerMovementSc : MonoBehaviour
{
    public float MoveSpeed;
    private float X;
    private float Y;
    private Vector2 Inputvec;
    private Vector3 MoveVec;
    public float mouseSpeed = 1;
    Rigidbody rigid;

    private void Awake()
    {
        rigid = GetComponent<Rigidbody>();
        Application.targetFrameRate = 60;
    }
    
    private void FixedUpdate()
    {
        rigid.linearVelocity = MoveVec * MoveSpeed * Time.fixedDeltaTime;
    }

    private void Update()
    {
        Vector2 mouseVec = Mouse.current.delta.ReadValue() * Time.deltaTime * mouseSpeed * 50;
        X = Mathf.Clamp(X - mouseVec.y,-80,80);
        Y += mouseVec.x;
        transform.GetChild(0).transform.localRotation = Quaternion.Euler(X,0,0);
        transform.localRotation = Quaternion.Euler(0,Y,0);

        MoveVec = transform.right * Inputvec.x + transform.forward * Inputvec.y;
    }


    private void OnMove(InputValue value)
    {
        Inputvec = value.Get<Vector2>();
    }
}

my code

and collision

[true zealot]

Not sure what this has to do with HDRP

But it looks like you're not applying any gravity?

Also https://unity.huh.how/mouse-input-and-deltatime

[hollow umbra]

HDRP project XD

[hollow umbra]

thx!

[shrewd moon]

HDRP is only related to graphics rendering features, so questions about code or physics are better suited for their respective channels

[hollow umbra]

oh sry

[bronze hatch]

That great to know, thank you for the showcase!

[slim totem]

Hay, does anyone have any clue how to implement MSAA using the RenderPass/SubPass system in a custom SRP?

[quartz turret]

switching a project to HDRP with the instructions on the Unity website but the HDRP Wizard remains greyed out even if I restart Unity and PC with HDRP assets created and applied in the project, any way around this?

would prefer not to set up a whole new project

[mortal forge]

How do I set HDRP's volumetric fog to not use reprojection by script?

[peak sluice]

hello, I tried adding subsurface scattering to candles yesterday to my project, today when I opened it the candles were pink for some reason (there's nothing remotely pink in any of their textures). A unrelated light somewhere in the scene also started flickering both in and out of play mode, and got this warning in the console, the number on the right shows no sign of stopping, but almost all of my lights in the scene are baked. could someone help me out or explain whats happening? 🥲

[shrewd moon]

The wrong color likely means they're lacking a diffusion profile required for SSS

The warning seems to say you've got too many shadows and should increase the limit if you want more

Realtime/mixed light shadows are rendered as realtime even if lighting is baked, and count up towards the shadow rendering limits
Subsurface scattering cannot really be baked to my knowledge, because it's an effect that changes by camera perspective

If you want to bake them you'd rather give your candles an emission map that approximates the subsurface scattering, disable their shadow casting and instead add light cookies to the lights that emulate the shadow of the candle itself as well as light passing through it
https://pydonzallaz.wordpress.com/wp-content/uploads/2019/02/create-high-quality-light-fixtures-in-unity.pdf

The technique works just as well for realtime, baked and mixed type lights

[south girder]

Seems to be .denoisingMode on the Fog volume component

[peak sluice]

ohh thats a good tip! thank you so much

[naive dawn]

How the flip do i convert something like this into hdrp material shaders? https://assetstore.unity.com/packages/3d/environments/urban/ountry-house-125731 When i switch to hdrp/lit all the materials lose their textures and i have to manually assign them again which takes forever.

[hollow tangle]

I’d write a conversion script depending on what kind of textures are available and how many materials there are.

[naive dawn]

thanks ill give it a try

[long scarab]

there is a conversion tool built into HDRP already; just mark the materials and do "Edit/Rendering/Materials/Convert Selected MAterials ...."

assuming it's built-in in the original material

[naive dawn]

i tried that but it didnt work, just made chatgpt write a conversion script l ol

[indigo pivot]

Hi - I didn't know where to ask about this, so as I'm using HDRP I'll ask here.
I've been on a journey creating a mesh deformer to look like thick mud. (using compute shaders and shader-graph).
The issue I'm facing seems to be due to mesh triangulation. then a character moves top left to bottom right (or vis versa) you can see the mesh grid. However, in every other direction it is great.
I've been hunting for a answer to this and it seems move complicated then i first thought. It seems i need to have a script that modifies the mesh at runtime (https://docs.unity3d.com/ScriptReference/Mesh.html).

I'm just hoping there is a better option that I'm not aware of.
Other things I've tried:
increase mesh resolution - drops frame rate.
turning on tessellation on in shader-graph - seems to do nothing.

[open tree]

Happy new year

[minor tusk]

Hi,
I wanted to render a camera on top of another camera (I wanted to have 1st person weapons to have different fov and not go through objects)
the thing is, doing so with having 2 cameras and the 1st person camera background to none only works for the color and vector buffer and depth buffer does not get masked out.
So my question is how can I mask it out?

Here it is with it using the half bottom of the screen with color and alpha of 0

and here is the same scene with bg type none, as you can see the depth and vector does not goes through so I need a way to mask it out.

[neon hound]

Hey, sorry. But I have a problem with my unity project.
for some reason it keeps giving me this error and I'm not sure how to solve it. I would be very glad about every help <3
My issue is the following console error:
error CS2015: 'D:\Users\User\Desktop\VRC Creator\Projects\Backups\Locus\Library/PackageCache/com.unity.render-pipelines.high-definition@14.0.10/Runtime/Material/TerrainLit/TerrainLitAPI.cs' is a binary file instead of a text file error CS2015: 'D:\Users\User\Desktop\VRC Creator\Projects\Backups\Locus\Library/PackageCache/com.unity.render-pipelines.high-definition@14.0.10/Runtime/Material/Unlit/Unlit.cs' is a binary file instead of a text file

I already tried deleteing the Libary folder and restarting Unity. I also tried reinstalling all packages. Nothing seemed to work

[onyx lark]

What do those files actually look like?

[mortal forge]

Does anyone know what this job actually is? Been consistently seeing it

[hollow tangle]

Looks like CPU-based culling. Do you have a lot of objects in your scene?

[mortal forge]

Nope. On build it goes away, but I still want to solve it because it makes play mode in editor basically useless at 8fps.

[hoary star]

Posting code

📃 Large Code Blocks

Use links to services like:
https://paste.mod.gg/, https://hastebin.skyra.pw/, https://paste.ofcode.org/, https://paste.myst.rs/, https://scriptbin.xyz/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[grand ledge]

Hey there, i am not sure what is wrong with my cars wheels. When the cars wheels are spinning fast, there seems to be some flickering happening, i am not sure how to fix this

[scarlet hull]

"Flickering" ?
My wild guess is that it is related to motion blur, and is a common issue with fast spinning objects.

[glacial fossil]

The flickering could also be referring to the lack of motion blur which would just make the different wheel rotations quickly flash on the screen. Regardless some sort of motion blur shader might help on that. The default motion blur doesn't work well for fast spinning objects so custom shader like these might be useful https://discussions.unity.com/t/spinning-ball-motion-blur/784611/2 https://discussions.unity.com/t/hdrp-wheel-motion-vector/812408

[quartz turret]

Error in Graph at Assets/Samples/Core RP Library/Common/Materials/Shaders/SamplesCrossLit.shadergraph on line 1: Parse error: syntax error, unexpected $end, expecting TOK_SHADER (in console after restart)
I don't know a thing about shaders. This is the default shader for my HDRP project. If I delete it, everything goes pink, regardles of what material is applied to it. But probably ten times a day I have to force kill and restart unity because it gets stuck on this asset. I left it overnight once and it was still stuck, it never completes. Is there something I can do about it or is it just some weird bug with the latest editor versions?

[grand ledge]

Ya this is what I meant, I’ll check it out thanks for the help!

[onyx lark]

That error means that the file is completely empty.

[quartz turret]

it only shows up sometimes after it fails. if I go open the shader graph now there's lots of stuff in it.

[onyx lark]

this would be the actual generated shader

i believe it generates shader code, then compiles that

[feral wraith]

Hey yall having some issues with the unity normals. I have managed to fix a lot but there are still small artifacts like this behind/ above the ear, is this an issue with the normal maps. Or with my lighting settings. It should not be anything with flipped values because the rest of the face looks alright

[wet gate]

hello!
not sure if my project is using urp or hdrp
but my team member added an hdri to the sky (as cubemap) but the buildings in it look huge
any scaling attempts or searches have only led to lowering its resolution, not actually scaling it down.
anyone knows how to scale it?

[long scarab]

scaling won't be possible, as it fills the full view; means, scaling would in that case lead to only parts of the view being filled by the HDRI. So you need to find a better fitting HDRI.

[long scarab]

there are some settings in the importer that have effect on normals; so you can choose to not import normals, but let Unity recalculate normals, and you can in that case give a threshold for smoothness of normals

[keen canyon]

hello, i'm having some trouble setting up a swimming and diving system in hdrp water

i've tried a few different solutions but haven't found the right one yet

what's the best way to approach this?

i want the player to move with the waves and dive when looking below the water surface

[cold matrix]

Made With Unity 6

[lament plaza]

I'm a beginner and this may be a dumb question but I used Volume component to make a procedural sky with Sun disk but I'm unable to see any change in the background of the Scene unlike the tutorial I'm following
I'm using Unity 6

Also another thing is I have that warning but Fog > Vlumetrics is enable

[true zealot]

you have the environment disabled

[lament plaza]

Thank you very much

[pure forge]

Hello, I'm throwing this bottle into the sea in the hope that someone can help me.
I have a little problem in my scene.
I'm trying to make an environment in HDRP for my exam and I don't know why but my foliage doesn't want to appear in my game view. I tried to change the LOD, disable it, changing it in the project settings but nothing work so I hope someone could help resolve this problem. I also search on the internet if someone had the same problem but I didn't food anything that was working :/
And also, if you have any advice on how I could improve, I will be glad to take it :)
(Hope you have a nice day)

[onyx lark]

How is the foliage being rendered? Is it part of a terrain?

Does it appear when you get closer?

[pure forge]

No, I paint it using a prefab painter tool
And yes but only in my scene view. My game view don't move because I need to render only one image

[onyx lark]

Okay, so what does this prefab look like?

(And it'd still be useful to know if the grass does appear when you get close, even if you aren't planning to move)

[pure forge]

I would like to but I don't even know how to move my game view :/ (I'm new on this software)

[onyx lark]

Look for the main camera object in the scene view and move it

[pure forge]

It's the same for all my foliage

[onyx lark]

the LOD Group component is enabled here, and it's going to turn off the renderer entirely when the foliage is too far away

One quick solution would be to change the LOD bias

[pure forge]

It's appear in my game view when it's close to the camera

[onyx lark]

LOD works based on how big something is on the screen

The LOD bias is like a multiplier for that size-on-screen

Look at the frame settings on your camera. You can override the "LOD Bias Mode" to "Fixed", then set a bias factor

The names might be different for you -- I see this on my camera

I'm not sure whether a large bias means stuff disappears sooner or later, so try both 10 and 0.1 :p

[pure forge]

I can find this in the project settings?

[onyx lark]

No. Look at the inspector for your camera.

[pure forge]

I don't have this settings in my camera
My overdrive are "Projection, Rendering, Environnement, Output"

[onyx lark]

Screenshot the entire inspector

Ah, actually

Unfold the "Rendering" section

[onyx lark]

hm..what version of unity is this?

that looks like 6

but you have a very different looking inspector

[pure forge]

Unity 6 (6000.0.7.f1)

[onyx lark]

ooh, I get it

tick "Custom Frame Settings"

that'll reveal the massive pile of options

[pure forge]

Yes

But I can't change the LOD Bias like you

[onyx lark]

You have to change the LOD Bias Mode

"From Quality Settings" means that it'll just use whatever's in your project settings

we want to override it for this camera

[onyx lark]

Try matching what I have here

[pure forge]

I changed it like you but it only worked for my trees

[onyx lark]

You might need an even larger value to make the grass appear

a huge number like a million should make everything show up

[pure forge]

Okay I thinks it show up but my image is so pixelized that we don't see anything x)

But thanks you for the tips :)

[fluid merlin]

Is it just me, or did the emissive visuals change somewhat in Unity 6?

[mortal forge]

Anyone run into massive culling calls on Unity 6 related to point lights?

[eternal laurel]

Yep a few moving point lights caused massive culling spikes for us.

But it was related to shadow culling not this specific profiler marker

[mortal forge]

Yeah looks like it was shadow culling. Annoying

[lone verge]

Just opened up the HDRP sample template and performance is horrendous, can barely move the camera. My hardware shouldnt be an issue, ryzen 7 3700x, 6750xt, 16gb ram, also seems like unity isnt taking up much resources in task manager. any idea whats going wrong?

huh closed unity hub and that helped a lot

[opal mica]

Hello! The Highlight effect in the HDRP Fullscreen Samples causes both my scene view and game view to randomly flicker to complete blackness every other second or so. The only way I can fix it (without disabling the custom pass) is to put the injection point to After post-processing, although I need it to be before. Does anyone know what that's about?

[eternal laurel]

In all honesty the range on the point lights was pretty big since our environment is generally oversized. So reducing that helped eliminate the spikes

[jagged raven]

anyone used high quality line rendering? cant see what it does

@lone verge i have to keep rebooting for unity6 to run smooth

[long scarab]

it's typically used to render hair, as thin strands of hair are producing lots of aliasing artifacts.

It's a bit complicated to set up, has heavy performance impact, and some bugs. But it can look very good.

you need to set it up in HDRP asset, on camera settings, in your volume, and in the used shader graph

[jagged raven]

great thanks! i dont need it then 🙂

damn unity is running fast finally, this is awesome

reflections seem nice in hdrp witout a reflection probe,

hows that ?

[scarlet hull]

Probably Screen Space Reflection by default.

[jagged raven]

yeh! its cool

[jagged raven]

is tere a setting to render when u go under the water?

oh yeh there is!

[jagged raven]

anyone notice a very obvious "jerk" when you change skybox or add new objects to a scene when using HDRP? i presume it is all the reflections etc setting up but its pretty noticable.

[scarlet hull]

Changing the skybox triggers the skay reflection and ambiant probe recalculation.
And adding object might trigger shader compilations if the new object shader (variant) hasn't been compiled and stored in cache already.

[jagged raven]

yeh its a shame.. if i turn on the sky once during init, and then off, i guess it doesnt cache anything still?

all my shaders are just hdrp lit etc

[scarlet hull]

No, the sky reflection/ambiant probes are cached and static, unless the sky changes.

[jagged raven]

yeh, i love swapping the sky haha, i think its less obvious in a build

[low thorn]

Why its so brightness?

[long scarab]

you need to use an exposure component in a local or global volume and set it correctly

[heavy nacelle]

Light is on the other side of this wall, why i am seeing it from here?

[shrewd moon]

Only shadow casting can occlude a light component from reflecting beyond walls

[indigo pivot]

Hey all. I hope some one has had this same issue and found a work around. Currently the MOVING volumetric clouds are only reflected in the material when the clouds are visible in the scene (or camera) view. [As seen in the attached video]
I am making a game with a top down camera and aim to have the reflected clouds appear on the surface.

I've tried:

• playing with lighting settings (switching to realtime/baking/turn on everything on then off)
• playing with camera settings (clipping/culling/occlusion.
• adding probes/disabling probes
• searching forums/ reading the unity docs

So far no luck! Any ideas?

Edit: OK, I found the realtime reflectons were actually managed by SSR (screen space reflections).
Next question is what is the best way to make the volumetric clods reflect on the ground material?

[shrewd moon]

You'll want a planar reflection probe if the surface is fully flat
Realtime reflection probe if it's not

[indigo pivot]

Unfortunately I can't seem to render the clouds in this, everything else reflects perfectly.

[shrewd moon]

I haven't tried those two together but it sounds unintuitive that it would not be able to do so
It could be a missed setting, or a bug

[indigo pivot]

from the docs: " By default, volumetric clouds are disabled on Planar Reflection Probes and realtime Reflection Probes because of the performance cost."
I'll find out how to reenable it and test its performance cost. THANKYOU!

[indigo pivot]

For anyone trying to find this in the future - on the probe -> right click the 3 dots -> advanced settings -> Custom Frame Settings -> Lighting -> Volumetric clouds.

[shrewd moon]

I really wonder how those concealed "advanced" settings came to be

[indigo pivot]

and not every component has them so its really hard to predict where these 'hidden' setting are...

[mortal forge]

Don't spose anyone else has ever run into this bug where GPU mesh skinning in HDRP (I think it's the GPU mesh skinning doing it) just completely borks out? 😄

[onyx lark]

I believe you can turn them all on from the project settings

[onyx lark]

it's very weird -- pretty much every instance is just one or two extra options

[jagged raven]

anyone know when dlss kicks in, is it when thigns go to slow or something?

[jagged raven]

looks cool, how did u move clouds?

oh dlss is always on if u turn it on, doesnt seem to do much but it zooms in

[indigo pivot]

In the local volume add volumetric clouds, then add wind speed. If this doesn't work, change the wind speed to custom and it should start working.

[idle compass]

is it possible to make dynamic ripples on a HDRP ocean surface ? Like having a ball jumps in the water and make a ripple like effect ? I ve seen some third party ocean asset that could do it but I would like to keep the hdrp built in ocean as I like the look better

[still sandal]

i think they have a sample of just that

with the pool

[eternal laurel]

The water samples have exactly that

[eternal laurel]

!code

[hoary star]

Posting code

📃 Large Code Blocks

Use links to services like:
https://paste.mod.gg/, https://hastebin.skyra.pw/, https://paste.ofcode.org/, https://paste.myst.rs/, https://scriptbin.xyz/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[eternal laurel]

Does anyone know why my fps weapon custom pass would double up the Color Buffer ? This is the codehttps://paste.mod.gg/tnocifkpqlhu/0 I do not see where and how it creates a dup color buffer

[idle compass]

thank you I'll dig into it 🙂

[lean cypress]

For a custom render pass, how can I tell if the Execute method is being called the last time for the frame? For example if there are several cameras, how can I tell if execute is called for the last camera?

[fluid merlin]

Got a speedtree shader that was made for unity HDRP 12.1+ but doesn't work in Unity 6, is there a speed tree shader download? Can't seem to find anything

[proven bridge]

Does anyone know how to fix this? The lines are above the road, but they disappear when the camera moves away. The same happens in both Scene and Play mode.

[fluid merlin]

I've never been able to get any kind of answer or help on DLSS. I've tried turning it on/off, changing the resolution to 4k in the editor... nothing. I'll tell you what though, prior to Unity 6, turning it on would zoom the camera at an off aspect ratio for no reason. Somewhere in the forums someone said it was bug. Good luck though, if you find any answers let me know because I've been curious about it myself since it's supposed to be a performance boost for 4k allowing you run at a lower resolution. But yeah, I find it really hard to find any troubleshooting or subject matter expert on it for help. ref: https://discussions.unity.com/t/fixed-2021-2-12f1-viewport-not-scaling-with-dynamic-resolution-12-1-3-2021-2-8f1/868415

[hollow tangle]

You enable DLSS in your HDRP asset and then on your main camera. As long as you’re not CPU bound you can see close to 4x fps boost with almost no loss of visual quality. I have an indoor scene with thousands of game objects, 10s of millions of tris between 100-200 FPS at 4K.

Depends which DLSS profile you pick.

[fluid merlin]

Yup, I've followed the documentation to set it up, no dice. Even using the unity hdrp demo scene. I've tried all the quality settings, etc. It just doesn't seem to do anything.

Will it only work in build or is it supposed to work in the editor?

[gaunt stag]

just made my first HDRP project after using mostly URP for a good while. are there any major problems/differences i should know about before getting started?

[hollow tangle]

Editor. What RTX card do you have

[fluid merlin]

It's a 3080

[long scarab]

It's working fine in Editor (Play mode only). Needs to be enabled on Asset, and on Camera, and on camera you also need to set the quality level for DLSS.

[eternal laurel]

How do I change the render queue of a HDRP material ? I swear it was a thing in the material itself but I'm not seeing it in Unity 6

It’s not letting me change it even in debug view

well kinda dumb that I had to write a editor script to set this, but that got my gbuffer batches down from 28 to 5

[south girder]

I can't see that and I'm on 2021.3

On Lit materials or custom shader graph materials

[eternal laurel]

regular lit materials

god dammit unity reverts the change when I save the project

well what do I do now ?!

I need to set the render queue to ensure proper batching

I get so frustraded when Unity does not let me do things even when I know what I am doing

[south girder]

I don't know much about render order related stuff but is it related to this Rendering Pass setting?

[eternal laurel]

It is

But I want to custom order a few opaque materials

Since two have emission maps and 1 does not

By default all of them are on 2225

And this breaks srp batching

Putting them in order of 2023 2024 2025 results in like 3 batches

As it should be

But unity won’t let me

[fluid merlin]

Thanks, yeah, I do that, but there’s no change in performance on or off even if using Unity demo scenes on a new install. Unity 2021.3 would do this odd zoom on the camera if it was enabled. Unity 6 doesn’t do that, but whatever it’s supposed to be doing never seems to provide any performance boost for any scene I run.

I sort of gave up on it because Unity doesn’t seem to have anything to troubleshoot it, but now and again I’ll see someone mention it here or on the forums so I’ll ask about it again.

[long scarab]

maybe you have "force screen percentage" checked on your HDRP asset?

[fluid merlin]

I was going by this post on % setup:

https://discussions.unity.com/t/dlss-seems-to-be-nonfunctional/847270/10

I’ll check it out again, I’ll admit it’s a little confusing on what the right values should be

[eternal laurel]

hmm I'm having trouble with STP right now as well

enabling dynamic resolution on the hdrp asset seems to not render motion vectors any mroe

with force screen percentage it works

but not when dynamically adjusting the res

[eternal laurel]

ahh frame timing stats on dx12 seem to be way off

great

[jagged raven]

anyone know how to stop that black colour when things are too bright

can see it here on the white light on the building

[south girder]

Are you using a custom fullscreen shader? If yes, show that

Could be related to not clamping a value or using the wrong precision

[jagged raven]

ah yes

thanks

[steel current]

so I switched render pipelines...

turns out none of my shader graphs are compatible because of the custom lighting node I use

luckily I still have the original and this is just a copy

is there another custom lighting node I could use for hdrp or just like a line I could change to get the hlsl code to work with a custom function in hdrp?

[onyx lark]

what is this "Custom lighting node"?

[onyx lark]

that's very vague

[unborn forge]

It just grabs the main light direction, color and shadow mask stuff (different account)

[eternal laurel]

As fr as I can tell the new gpu occlusion does not work on skinned meshes even though they seem to render through the gpu driven path. Or am I doing something wrong ?

[eternal laurel]

Can someone explain to me why am I getting a 11.42ms wait on swap chain when my gpu time is 8ms and vsync is turned off in the settings anyway

[eternal laurel]

Ok so this is getting wierd. Running a dev build does not have vsync on until I alt-tab then it starts to use vsync

The release build seems to have vsync on by default

[cold matrix]

Hi friends, let me ask you a question, when I navigate the ready-made scene in unity time ghost, the grass is rendered in the whole terrain, but in my own projects, the grass is not rendered in my scene, is there a setting for the grass to be rendered in all of the large plots, just like in Time Ghost?

or a shader

[eternal laurel]

Welp time ghost does grass in a very specific very optimised way. So if you want dense good looking grass I suggest you look into how time ghost does it

[cold matrix]

I also asked the AI but he said he didn't know how to do it in time ghost.

[true zealot]

I don't know why a language model would know

https://youtu.be/BTM6_pU8RM8?si=voWMkU_0pdSDDCj8

[leaden oar]

After porting my project to HDRP my point lights dont work anymore, any ideas?

[lucid gate]

Your screen doesn't tell much, maybe check in the inspector if a light data got added

---

After making a build, the arm is pink and the fov of the fake camera is gone. I use a custom pass that fakes the equipment camera.
Now in the past i learned to add custom shaders to the always load shader list which i did. Otherwise this is a first timer. Any explanation or suggestion?
https://cdn.discordapp.com/attachments/1305919079600881744/1333105960725774396/image.png?ex=6797af2c&is=67965dac&hm=cb8e251f7ce3a5985636c3e4ce4735d4ef01590094d3ddbb789b0658c6190093&
https://cdn.discordapp.com/attachments/1305919079600881744/1333106230750875739/image.png?ex=6797af6d&is=67965ded&hm=5bdafd1274c0d11a18b5e9d4f353152d3ffe9fee41cdc8acf20636bcb5c8a7a3&

[leaden oar]

This is what the light looks like ingame

i have no idea whats wrong, no lights work at all

its just like a floating ghost orb or some shit

[fluid merlin]

I haven't looked at the TG demo in the editor yet, but in general terrain, there's a Detail Distance setting on the terrain on the last panel of the terrain (gear/mountain icon). I think default is like 80 or something, you have to ratchet up that number to whatever your culling distance is on the camera (ie 5000). However, be preparred for your fps to drop significantly. You can improve the performance quite a bit by using an asset to do GPU indirect instancing to draw the grass. You can tweak it for more performance by doing other things like removing shadows from LOD2+ on the grass, etc.

[hollow tangle]

What do you mean by port?

[scarlet hull]

HDRP uses physical light units with by default realistic light intensities for sun and punctual lights, and the sky.
But because the sun and sky (in day light) is so much more bright than any artificial light sources, they are hard to see in plain day. So if you want them to shine, you need to either lower the sun influence (fake reduce the sun intensity, or add clouds), or greatly increase the point light intensity.

[leaden oar]

Changing the render pipeline to HDRP and converting all the materials

Also even after removing the directional light completely the lights still dont work

[shrewd moon]

Lighting in HDRP is dependent on exposure, in volume profile override / default settings

Lighting from the environment is not just from the directional light, but ambient light as well

[leaden oar]

I tried everything, setting the point light intensity all the way up does nothing

No matter what i change it does not work

[scarlet hull]

The maximum value allowed by the range might not be enough in plain sunlight, you can enter a value that overshoots it in the intensity field.

[hollow tangle]

Does each light have the HD Additional Light Data script on it

[scarlet hull]

If HDRP is running and rendering, it's practically impossible for the lights to not have the additional data component.

[hollow tangle]

Ok. I wasn’t sure as he mentioned he changed the render pipeline to HDRP on an existing project

I’ve never done that before myself

[lucid gate]

Any suggestion for my problem?

“After making a build” excludes pretty much everything obvious,
Custom pass, injects the second camera into main render, standard hdrp lit shader.

I used custom pass before, and also made small post processing shaders and tested those in builds.

[onyx lark]

I would check that you're finding a shader at all (rather than getting null)

You might already be getting errors. I'd make a development build so that it's easy to see them

[lucid gate]

Debugging is one of the things I neglect a lot (never really done since using Unity), I will try that. There were no errors after build compiling. That was my last safety net so far lol.
Thanks for the answer.

[lone fox]

HDRP 14 here, how to get rid of the obvious dark point generated by the probe volume bake:

any magic setting to look for?

[shrewd moon]

Increasing the probe sample multiplier mainly

And making sure Sampling Noise is at 1

[lone fox]

Thank you for the quick reply, I will try these recommendations

[mossy yacht]

Hey guys I have a bit of a silly question and I'm sure there's a simple solution/answer/workaround to what I have.

Scene details:

• HDRP (with RTX features)
• HDRP Water (Ocean)
• Volume Profile (with Path Tracing)

When I go to enable Path Tracing, the HDRP water disappears completely. I'd understand if the shading was borked or it ignored the shading over the water, but it just vanishes. I've read this is due to MSAA but I can't find anywhere it's enabled. I've attached a .gif of what happens.

Unity version: Unity 6.1 Beta (6000.1.0b3)* <DX12>

As for what content is in the scene, I've literally created the outdoor HDRP scene and deleted the 'Geometry' folder from the scene, then added the HDRP Water asset and changed the volume profile to my own.

I'd appreciate some direction or ideas. I'd love to use this HDRP water asset for really nice visuals but I'm not sure why it vanishes when enabling Path Tracing.

[south girder]

Does anything change if you swap to a different rendering path?

Lit shader mode

In HDRP asset

[onyx lark]

Path Tracing doesn't support quite a few things https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/Ray-Tracing-Path-Tracing.html#limitations

It doesn't explicitly mention water, though

But it does smell like it wouldn't support water

no per-pixel displacement, derivative functions, or scene color nodes

[scarlet hull]

I did ask internally and it is a missing point in the doc, neither raytracing nor pathtracing supports water surfaces.

[mortal forge]

Anyone else seen this APV editor view error before? TargetParameterCountException: Number of parameters specified does not match the expected number.
U6.1b2

[steel current]

does the baked gi node work in shader graph for hdrp

I tried it and the texture was just black

[fluid merlin]

It only works for Lit, not for Unlit.

[prisma sleet]

Hello. Has anyone ever had this happen before with cutout shaders and HDRP?

Basically I have two flat planes here rendering sprites that both have a positional Y-axis value of 0, and I am getting visual z-fighting with the area that is supposed to be getting cut out

[onyx lark]

Kind of smells like the blend mode is wrong

or that it's not actually discarding pixels

one of the objects is showing colors from the other object's transparent pixels

[prisma sleet]

ok, so maybe a texture problem?

[onyx lark]

is this a custom shader?

[prisma sleet]

the ones in my GIFs are, but I also tested it with the default HDRP Lit shader and it behaves the same way

[prisma sleet]

Tested in a new HDRP project with default HDRP/Lit shader and it is also behaving this way

in URP it is not and is behaving as I'd expect

HDRP/Unlit seems fine

It's just the Lit shader that is doing it

[steel current]

why does my lightmap look so bright when its at 0 and it looks like how it is in the scene only when I set it all the way to -7

and how do I fix this exposure issue

[onyx lark]

That means that there's a lot of light in your scene!

Think about how much brighter it is outside on a sunny day than it is indoors with artificial lighting

There is nothing inherently wrong with this. You adjust the exposure on your camera to match the amount of light around you

[steel current]

when I go into regular shaded view the light looks normal

[onyx lark]

Right, because your camera is adjusting for that light level

like how your eyes adapt when you go outside

[steel current]

oh okay, I just had a shader that needed lower light levels for it to add baked lighting on top

[onyx lark]

Now, if this is meant to be a pretty dark indoor scene, then these light levels sound a bit funky

the HDRP uses physically accurate light units, rather than the very vague...unitless "intensity" you see elsewhere

What light sources are present in this scene?