Official Unity Experimental HDRP DXR

Not to say I sleep I add to my surface system HDRP StackLit (great quality):

 

#2

 

auzaiffe can you provide correct setting for Global Illumination from Background light sources (Gradient Sky or Physical Sky) which do not gives issue with reflections? I really stuck with this and it seems it not working properly for me....

 

*Recently updated from 2021.1f1 to 2021.2a12 - wow, editor performance 50-100% faster in complex scenes with ray tracing. Impressive!*

 

...and finally Specularity can be disable for each light separately!

 

Looks like latest alpha (12) is the best DXR version so far. Super Reflector option for spot/IES lights - gives a lot more realism for light power physical behavior .

 

Do you had have some problems with recursive rendering and raytraced reflections.
I get total bright orange spots in all alphas?
Somehow the volume overides need layers set they are gone from my project a long time ago.

I checked all my prefabs and geometrys in project. The volume overiddes need a layer whos is not in my project anymore. Tried everything i could imagine. for hours.

 

Latest Alpha is definitely best DXR version of Unity right now (loved new DoF engine!)

 

Also improvement speed render! (I get like 30 fps in 940 pix resolution)

 

When i upgrade my DXR scene to
2021.2.a12

my HDRP Lits (mainly all transparent materials) look like



i have to switch to any other shader than back to HDRP Lit to get the full options like



Does anyone has an idea why and how to solve for all materials?
Tried also to upgrade "HDRP Material to latest HDRP option" which doesnt help in this case.

 

Rendering is fine for me, no orange spots - I can recommend to check it out with fresh new project, old one can hold some settings that didn't fits with new alpha improvements & changes in code.

About layers - well, it's like that since forever: placing object on a layer outside of standard set and later moving this object to the project that didn't have this layer will cause tricky behavior (as far as I can remember this object will be moved to "Default" layer but only till you give a name one of the empty layers - object will instantly move on this layer again without any notice, it keeps number of previously assigned layer somewhere in its *.meta file and returning to it as this layer receives any kind of name (matching original or not)). My suggestion is to give a distinct names to all layers with empty name field (like "ERROR 01", "ERROR 02") that will makes them active again and check out assets that causing troubles - they're will be on one of those "ERROR" layers I guess, only after that you can safely remove them to correct layers (like to 'Default') and this time it will work fine and won't be switched/ignored.

Hope this helps (probably this problem has some tools to correct all this automatically, but I didn't dig it much).

 

https://developer.nvidia.com/blog/nvidia-dlss-natively-supported-in-unity-2021-2 - so, DLSS is scheduled to come with release version of Unity 2021.2. Hell yeah!

 

Thanks for the detailed help and info.

There is this great tool where you can transfer all your layers to others
https://github.com/YondernautsGames/LayerManager

I tried this and it works in general.
But it cannot handle layers in prefabs like described in the github issues of the project.


So meantime i found out there seems to be no way to transfer geometrys to layers project wide when you use prefabs in a clean way.
When you work with prefabs there seems to be a big problem.

Like i said the old layers don t exis anymore project wide but they need to be set in volume overides to render these.
I had to go back with my project to unity dxr experimental 2 years ago before e i introduced these layers.
So all between work in between versions is lost and unfixable. There are hundreds of complex prefabs i my project with complex layer settings.

To make it clear, even by selectiing objects manually and trying to transfer them to new layers is not possible at all.
Even by manually reimport, unpack, repack the prefabs and by trying to transfer layers manually.
They stick to the layer once set and are not moveable anymore. Unity UI displays they belong to the new layer i transfered these but internally they still belong to the old layers.

The ui says they belong to the new transfered layer. But they are not. They seem stick internally to the "zombie" layer.

All project between version up to todays 2020.1.x are not fixable anymore.
At least i found no way up to now and this generates an absolut showstopper to use layers and prefabs.

So using prefabs and layers is not recommended and possible in Unity because you generate Zombie Layers there you never get back ore are transferable over time?

To to set Recursive Rendering Layer i have to add 15 old layer names who are not existing anymore to render all my transparent objects the right way.

Adding new stuff to the project with layers set become impossible becuase you crossfire will the old existing ones you cannot transfer anymore.

The problem is up to hundred of hours to set layers correctly is lost and not correctable in future Unity versions anymore? For me it seems to be a century bug.) Hope i am completly wrong here.

 

Been working on some experimental pieces recently. These are in order of most recent first, but all using full DXR (GI, Reflection, AO, Shadows etc):

 

@auzaiffe I noticed that a lot of noise has been introduced for moving objects compared to before, and my first guess is that this was introduced in PR #3343. Is there any way we can get some control over (or an option to completely disable) the velocity threshold?

Before (december 2020)



After (april 2021)



RTGI/RTAO was acceptable for moving objects before but has now become unusable.

I will try to locally revert the PR for now but it's quite difficult because of recent API/naming changes.

Edit
Same applies for the RTSS PR, I will try to locally revert this also until a better solution is available.

Edit 2



When the car is moving, disabling the RTGI denoiser produces less noise than having the denoiser enabled.

 

Would it be possible to define a max number of frames used for temporal (denoiser) accumulation to find a good working balance instead of a boolean?

Edit
Speed rejection would probably be the best option here. (and have the number of frames depend on the velocity?)

 

I see that CTAA plugin appear with new version and HDRP support!
Is somebody has this plugn to confirm is working in DXR system?
https://assetstore.unity.com/packag...ematic-temporal-anti-aliasing-189645#releases

 

never mind I just bought it because is 50% off now as starter new plugin v3!
Setup looks incredible Simple: add to post process volume
Works in latest alpha. Will try post some tests soon!

 

...Also MadGoat has plan to back develop his plugin (limited Unity versions) Lets keep cross finger for his decision!
With both plugins: CTAA and SSAA we will have full solution in rendering!

 

This is what I got so far (zoom x2).
CTAA soft:


CTAA sharp:

 

Some renders in FullHD:

 

Seems to be working quite well, thanks for information )

 

Lex4art is not big deal in quality for static images ...actually for me as off line render system it has low impact for quality but blur effect on edges gives better quality in low resolution when TAA from Unity is activated. Of course I prefer SSAA as still images AA solution.
I need test it more (CTAA looks promise) and also I want check what happen when I activate MadGoat.
Activating CTAA now I do not see practically any impact on speed render! so If I will add SSAA MadGoat as low quality it can be best solution.
Will back with more info about it

 

Bough 5$ assets pack with construction site stuff and mixed it with my old assets for new main menu design in Buildmark beta 3 - nice! But porting all those items to work with my runtime material replacement pipeline/texture density 1m per tile ... it will be a challenge:


Also new look & feel for Play mode lobby (but performance is meh, need to tweak (probably shadows samples/sun diameter too high)):

 

Lex4art cool job! I follow you project since beginning ...its really developing nicely!

 

I have a question. I'm wondering if the raytraced AO effect is visible on semitransparent materials. Or maybe it works similar to standard SSAO which is not visible on them?

Thanks.

 

I am proud to share my first HDRP raytracing screenshot with you!

RTX 3070, 1080p,

 

...

 

Absolutely stunning @wm-VR , hope to see more of your work here.

A feature I would love to see is the ability to use HDRI lighting when creating games with DXR in performance mode. Currently the HDRI does not contribute to the first bounce which makes all of the lighting render black.

Performance mode (1 bounce)



Quality mode (2 bounces)



- If this is actually unintended, let me know and I will set up a sample project and report it as a bug.
- If this is intended and not possible, it would be nice to add a second bounce option to performance mode, since it is faster, and has a half resolution option, compared to the quality mode which is not suitable for game use.

Thanks!

 

Understood, that will do the trick for now.

I seem to be running into some inconsistent behaviour when combining realtime ray tracing with reflection/ambient probes. I've been toggling my probes on/off (both in the scene and lighting panel), clearing and baking and now it's rendering the correct result, but my settings are exactly the same as before. It's a bit hard to reproduce and submit a bug report.

Sometimes the probe contribution seems to turn overexposed with only the ambient probe enabled, sometimes it all turns black (like in my previous post), and right now it seems to be correct.

 

I've created a boilerplate project ready to test HDRP + DXR + DLSS. (PR #3484)
All you need to do is clone the project, load it in 2021.2.0a17, open Scenes/samplescene and hit play.

https://github.com/m0nsky/hdrp_dxr_dlss

The project will run at 3840x2160 (using DLSS Balanced) by default and has the following options enabled:

- Ray traced global illumination
- Ray traced reflections
- Ray traced ambient occlusion
- Ray traced shadows

You can disable/change DLSS settings by clicking on the Main Camera and opening the Rendering tab.



Performance metrics on my RTX 3080
Native : 35 fps (baseline)
DLSS Maximum Quality : 61 fps (1.74x)
DLSS Balanced : 73 fps (2.06x)
DLSS Maximum Performance : 87 fps (2.49x)

There also seems to be a great improvement in motion (in terms of blur) when DLSS is enabled compared to TAA.
I've also noticed the heavier you make use of ray tracing, the more performance increase you'll get from DLSS.

2 bounces RTGI + 2 bounces RTR @ 3840x2160
Native : 17 fps (baseline)
DLSS Maximum Quality : 35 fps (2.06x)
DLSS Balanced : 43 fps (2.53x)
DLSS Maximum Performance : 54 fps (3.17x)

Currently the only issue I've found is that the framerate will significantly drop upon enabling physically based DOF, it does not play well with DLSS in it's current state.

 

How did you add DLSS inside your project? I see you have some custom packages.



And the Unity 2021.2 log talks about NVIDIA native package but I can't find it.

 

wow. Thanks for the project.
Very impressive.

think Ultra Performance should be = Ultra Quality.)

 

Thanks! Now we talk about
We will test

 

This what I got:
Max Quality:


Balanced:



Max Performance:

 

Ah....forgot: no DLSS

 

How is dx12 performance these days? Whats the hit if RTX is turned off vs sticking with dx11?

 

DXR trough dx12 is next generation, DX11 die slowly as old technology. Everything goes to real time computation: games, architecture.
For me as off line architecture render designer is REVOLUTION: getting 5000+ times faster rendering than standard CPU rendering.....

 

DiD some tests with MadGoat Soft Filter.
DLSS max performance:


DLSS + MadGoat soft filer (no upscaling):


DLSS off, no Anti-Aliasing at all:

 

First fast DLSS test.... on a RTX 2080 (Laptop)

Unity 2021.2.0a17
2560x1440

Ray traced global illumination
- Ray traced reflections
- Ray traced ambient occlusion
- Ray traced shadows

TAA

everything fine. in movement too.




Unity 2021.2.0a17
2560x1440

Ray traced global illumination
- Ray traced reflections
- Ray traced ambient occlusion
- Ray traced shadows

DLSS Maximum Quality

In the orange squares i get a during camera movement a flicker dico par exellence on the chrome an glass parts and the the edges in general are very jaggy.

Most visible during camera movement or gemoetry movement (opening door).
The quality against TAA is much worse in movement for high detailed geometry.

For now i don t get the point of DLSS.
Is it to run an 2560x1440 optimized scene on 3840x2160 upscaled with less quality?
Is TAA in addition possible in future implementations?




This screeshot shows better the quality during movement.

 

Thanks for the test.
Is the Mad Goat Soft Filter working good during movement and
did you try CTAA V3 HDRP on DXR scenes?
Liked it in BuiltIn RP and gave me some cinematique quality with slower camera aimations.

 

keeponshading where from I can get this interior car scene for testing?

 

keeponshading did not yet have time to test CTAA V3....soon will check!

 

I ported the scene from Unity DXR Experimental to actual version and use it as DXR test scene. Unfortunately the scene is not public available.