Official Water System for the High Definition Render Pipeline

I still want the underwater effect to be active outside the window when camera is inside. Is the underwater effect just a fog, that can somehow be accessed from script? It would be nice to know what the plans are for the underwater feature, if you are allowed to share that information.

 

Since currently the underwater are just linear fog you can calculate that on the window shader and disable the underwater rendering from the ocean when entering the building to avoid double fog, not sure about the underwater water surface though may @auzaiffe have a tips for that part.

 

What do you mean by "terrain system v2.0"? Is Unity planning to work on a new terrain system?

 

It has been already stated few years ago that they are working on it.

 

Oh, okay. Thank you for all the support and hard work, I can't wait to use this new feature ^ ^

 

@auzaiffe since you guys are working on the underwater renderpass, any chance we can get somekind of "inject/render objects inside underwater only" basically to render meshes/objects to only exist inside underwater pass/buffer, this could be usefull to render effect which only occured underwater easiest example might be bubbles/ or underwater foam particles?

 

This seems really interesting and looks really cool!

I'm exited for what's to come with this project!

Also I wonder how you implemented the caustics as I've heard they are really hard to render.


Good luck with this project!

 

I notice there's a couple water related nodes in shadergraph, can they be used on normal HDRP shadergraph? could be usefull to fetch water height or velocity inside shaders to drive wetness property or White water splash with VFXgraph

 

@auzaiffe What can we expect from shoreline effects? Is that going to be just plain part of water close to terrain with foam effect, or something more advanced?
Also would be great to know what performance hit we can also expect, many water solutions in asset store are quite heavy

 

The water is ideal for a pool. But how can I add caustics to the gameobject, ie the raccoon? And any info about when the water deformation will be coming for us?

 

Add-on to above, here's a vid. It's better for explanation. water scene starts at 01:28:

What this lacks is volume and depth. I mean, the raccoon should be distinguished from the water. Maybe with foam or maybe with caustics. When the camera goes below the surface, then the area above the water is already filled with water. Not a good design, I hope that changes. The water line should be bold. Ripples and water interaction are needed. And please give us Water VFX (bubbles, splashes, etc including sound)

 

I do not think you should be seeing caustics on the racoon (or any object) when it is at the surface,

Watch after one minute

Watch after 30 seconds

 

Holy crap that raccoon looks so good, is that using the new Hair rendering?
Sorry for bit out of topic.

Edit : oh it's using custom hair system, super cool.

 

What an awesome reference, thank you! Yeah, I guess the problem will resolve itself once there's ripples in.

 

W

We need water physics!!!

Looove racoon pool time!

 

can we also get access to water displacement vector, heightmap, and normal map textures outside of water shader graph?

 

I know this is for much in the future and perfectly reasonable if you cannot yet see or discuss that far ahead.

Still, for the River Component is there any specific idea or scope of use for handling either fed data like DEM/cloud points or vector information, to aid with flow direction and even placement?

 

Are there any examples for custom water materials? I assume we need to create a water shadergraph, but it would be helpful to see an example graph. (btw. since 2022.2, the packages content isn't shown in the project view, that was always very helpful as a reference, any way to get that back again?)

 

Thanks Chap, appreciate the input!

 

Is it planned for the underwater effect to get darker the deeper you go (set value of course) to simulate actual oceans in how light is non-existent the deeper you go. If there's a way to do this I hadn't found a way to do that yet.

EDIT - One other question, is it possible to have boat rotate based on the waves? Not seeing an option for that inside WaterSearchResult or Parameters. Wasn't sure if there was something else that exists to do this.

 

How can i use https://github.com/Unity-Technologies/Graphics this repository water?
I want make fluid water in the box...
I use 2022.1.10f1 unity version HDRP
Please somebody help me

 

You need to upgrade your unity version, it's available in 2022.2 beta, and will be there after release

 

Oh...
Is there any other way but to upgrade?

 

I expect system changes could be complex. But you can sometimes patch features into previous versions, it can be a nightmare to manage though, and I definitely wouldn't recommend it for production unless you absolutely need it and know what you're doing.

 

Hi, just wanted to submit a bug. when using a fullscreen custom pass, water stops rendering. My injection point is correct (i think) since all other transparents are still rendered.

 

I use 2022.2 beta, activated water in HDRP settings, added a plane with Surface water where i added a material with shader graph/Water shader in the Surface water component but when press play there is no water
If i open with shader graph the Water shader appears as pink

 

Water shader seems broken?

 

Some nice water for VR using Unreal

https://80.lv/articles/realistic-ue5-powered-water-shader-for-vr-updated/

For the videos
https://twitter.com/Khena_B/status/1563819250413879297
https://twitter.com/Khena_B/status/1563417088370569218
https://twitter.com/Khena_B/status/1561649294695960576



Lovely, and realistic surface tension displayed.
https://twitter.com/Khena_B/status/1560803240740020225

 

Is there be a way to seed the ocean? I'm using Photon Fusion, which uses client-predicted/rollback multiplayer. The ocean needs to be able to be "rolled back" and resimulated deterministically. If I could seed it with a tick integer it would be _perfect_ for my game.

 

Is it possible to remove/reduce the visible repetition when the camera is high above but also have good looking waves at sea level?

EDIT: Looks like the version in 2022.2.0b8 has changed and greatly improved with the infinite geometry type.

Great work guys!

 

Will there be a feature in the future to blend multiple waters? from a calm pond to a rapid river.

Also, would it be possible in the future to create a waterfall with this system?

 

Do we have any new features or major improvements for the water feature?
It feels like progress is slowing down and the team is working on details.
Which gives the impression of "wrapping up".

This is the progress of ONE guy working on his water feature.

Apart from the shader, which offers rich over and underwater features, he has added separate underwater plant physics (I suppose a variation of wind) for seaweed, Kelp etc.

https://twitter.com/i/status/1577943153159639042

at the same time he is making an underwater VR controller which allows the user to push or grab objects underwater providing thrust to move around in a realistic manner.

https://twitter.com/i/status/1576034096555646976

 

Apart from the good looking water line I dont see how the rest is connected the scope of a water system. I mean if you want to make SubnauticaVR you will have to write some systems yourself.

 

Hi, will there come an integration with the spline tool now that its finished? Similar to RAM or other river solutions? I think the workflow to create lakes or rivers would benefit greatly from that.

Also just tested it in unity 2023 , looks great so far!

 

I'm really looking forward to that fix. May I know when it will land?

 

We're just starting to play around with the water system, and i had a question about the artist UX. Currently it seems like we can add a custom material, but a lot of properties that affect visuals are tweaked in the component itself, and not in the Material.

This is not like how the rest of Unity works, e.g. the color of an object is described in the Material, not in the Renderer. Is there any way to extract these visual parameters to a Material?

 

Cant really seem to find much documentation on the water system, i tried searching in the HDRP package docs but nothing comes up.

 

Are there any plans for foam on geometry intersecting with the water? It looks very off without any.
Something like this:

 

Hi all,
How can I create a script that handles buoyancy with the water system? Is there any way to access the height information of the water surface?

Any explanation would be highly appreciated.

 

https://forum.unity.com/threads/wat...n-render-pipeline.1203751/page-3#post-8142818

 

Thank you so much for the reply, @Reanimate_L

It looks like some methods and properties have been renamed from the WaterSurface class. I made the errors go away, but unfortunately, now the script doesn't work as expected . my cube (has no rigidbody) does not fall down or stick to the water surface. Any consideration plz. <3

here is my new code:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Rendering.HighDefinition;
3.  
4. public class WaterInteractor : MonoBehaviour
5. {
6.     public WaterSurface targetSurface = null;
7.     public int numIterations = 8;
8.     public float error = 0.01f;
9.  
10.     // Internal search params
11.     WaterSearchParameters searchParameters = new WaterSearchParameters();
12.     WaterSearchResult searchResult = new WaterSearchResult();
13.  
14.     void Update()
15.     {
16.  
17.         if (targetSurface != null)
18.         {
19.             // Build the search parameters
20.             searchParameters.startPositionWS = searchResult.candidateLocationWS;
21.             searchParameters.targetPositionWS = gameObject.transform.position;
22.             searchParameters.error = error;
23.             searchParameters.maxIterations = numIterations;
24.  
25.             // Do the search
26.             if (targetSurface.ProjectPointOnWaterSurface(searchParameters, out searchResult))
27.             {
28.                 gameObject.transform.position = new Vector3(gameObject.transform.position.x, searchResult.candidateLocationWS.y, gameObject.transform.position.z);
29.             }
30.         }
31.     }
32. }