Official Unity Experimental HDRP DXR

Would this work with the RTX 2060 mobile version of the laptop Lenovo Legion Y540(releasing soon)?

 

I finally was able to download it using LFS for the GIT and all that. But now Unity crashes when I try to go to the game tab or run it. It did also crash while it was trying to compile scripts and such, forcing me to reset the whole computer as it just froze for more than 10 minutes.

Already spent like 4-5 hours I think trying to get this far, so I think I will give up for now and wait for this to be a bit more stable.

 

OMG this is just insane. Look how gorgeous this shot is!

 

It's a real life picture.

 

That was the conclusion I immediately reached when I first saw it. I wonder for how many years more it will still be possible to spot the difference so readily, the future will be a tad confusing when it comes to reality vs fake.

 

@SebLagarde

Hi. Will these DXR features work with meshes rendered with DrawMeshInstanced and DrawMeshInstancedIndirect or is there some extra step to add these instances to the DXR hierarchy?

I guess frustrum culling on manually drawn instances with the API should be disabled in order to have meshes behind the camera also to reflect from.

Lennart

 

Hi Seb,

Any ETA or temporary workaround for making test builds?
Thanks for everything so far.





Edit

Found another way to record in full screen, so nevermind.

 

@SebLagarde with the latest Nvidia drivers, it now runs on my GTX 1080 without any issues which is cool, but like others my CPU usage is through the roof, in the profiler there seems to be thread locking causing a delay, are there weird threading issues with ray tracing, and is there anyway to lower the CPU overhead right now?

 

Does DXR HDRP tracing support non RTX GPUs i have gtx 970 ??!!

 

The latest Nvidia driver added support for non-RTX cards for DXR, however, this only applies to Pascal cards as far as I'm aware (so the 1000 series).

 

Thank u so I should upgrade my graphic card

 

It works on my GTX 1080! Thank you!
Of cause it is slow - 5-10 FPS in full screen but it very nice anyway.

 

Hi,SebLagarde.I have already downloaded the new released version.But still get this problem
https://github.com/Unity-Technologies/Unity-Experimental-DXR/issues/9

You mention that Multi GPU is not support yet.I use the rtx2080-maxq laptop and it has two gpus(another is Intel(R)UHD Graphics 630).Will it be affected?I keep an eye on RTX and want to do some experiment but always not success.Do u have a specific date that rtx will be integrated in the stable Unity version?Looking foward to use it

 

Here you go.

 

some useful infos

https://www.techpowerup.com/254528/...dxr-support-to-many-geforce-gtx-gpus#comments



Does anyone has an idea if the performance cost is mostly additive between this four? or could the e.g share BVH Search.

For now i am happy with baking AO and GI and only using DXR Shadows and Reflections.

 

This looks interesting, I'm following this!

 

How can we write our own Raytrace functions so we can implement custom rendering?

 

Bug report - ray tracing stops working if there is a mesh in the scene with more than one material on it, console spammed by this error:

Code (CSharp):

1. IndexOutOfRangeException: Index was outside the bounds of the array.
2. UnityEngine.Experimental.Rendering.HDPipeline.HDRaytracingManager.BuildSubSceneStructure (UnityEngine.Experimental.Rendering.HDPipeline.HDRaytracingManager+HDRayTracingSubScene& subScene) (at SRP/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Raytracing/HDRaytracingManager.cs:544)
3. UnityEngine.Experimental.Rendering.HDPipeline.HDRaytracingManager.CheckSubScenes () (at SRP/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Raytracing/HDRaytracingManager.cs:199)
4. UnityEngine.Experimental.Rendering.HDPipeline.HDRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, UnityEngine.Camera[] cameras) (at SRP/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/HDRenderPipeline.cs:977)
5. UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera[] cameras) (at C:/buildslave/unity/build/Runtime/Export/RenderPipeline/RenderPipeline.cs:43)
6. UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, UnityEngine.Camera[] cameras, System.IntPtr loopPtr, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at C:/buildslave/unity/build/Runtime/Export/RenderPipeline/RenderPipelineManager.cs:55)
7. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
8.  
9.  

 

Looking very nice! Over 60fps on my 1070 too. Looking forward to standalone working.

 

How do you guys make a perfect chrome material(mirror like)? I tried using HDRPLit with a opaque setting but ray tracing is not allow, maybe I turn off some other settings that wont let me do ray tracing(everything is turn on with the RayTracing Environment setting).

Basically I'm trying to make a reflection material and get reflections showing on that object.

 

Turning up the smoothness should give you mirror-like reflections.

 

I think there was a small bug in the code. Take a look at this github commit for a fix, which may or may not have anything to do with the issue you experienced. I've not yet tried transplanting this to the version that comes with the experimental Unity editor, but its only a small change:

https://github.com/Unity-Technologi...mmit/1423ac0f1e4a4eba651644999d5e97d9c346cad6

 

Had a quick chance to try applying that fix to project version of HDRP. Seems to work (gets rid of console error message when selecting RayTracing for an opaque material). Didnt have any time to actually do anything with it though.

(Relates to the post #12 earlier in this thread, where type had to be set to transparent to make it work)

 

You could add the Measured Material Library Asset to the project and drag all materials over to DXR office scene by opening both scenes.
There are a lots of amazing materials like glas, car paint, leather, chrome..... to get started.

https://assetstore.unity.com/packages/2d/textures-materials/unity-measured-materials-library-138814

 

Did a quick test

 

Nice work! I'm fairly new to Unity and this being a early alpha isn't a good combo for trying to create a interior archviz Also the editor performance kind of drop for some unknown reason making difficult to nagivate around.

I was trying to recreate my UE4.22 DXR archviz scene in Unity. Lighting with a HDRI through the door was kinda tough in Unity(probably due to a lack of knowledge on my part), not the setup but the controls, increasing the skylight a ton didn't increase the light going thru the door..

 

You could have a look on Archviz Vol 6. There is an HDRP 4.6 version on request which uses Bakery. The scene bakes around 30 min to this quality

https://assetstore.unity.com/packages/3d/environments/urban/archvizpro-interior-vol-6-120489

and needs now big fakery. Only environment IBL.
Enabling here the Raytracing Reflections and Shadows will improve quality further.

 

I think the current version has some bugs, or they just happen on my PC. Like I can't switch the baked GI method while I am in DX12 because the editor would keep crashing. And with baked GI, some mixed lights simply disappeared. So the only thing I can use at the moment is the realtime GI. Custom LUT also doesn't work even the file format is correct. For Archviz usage I think the older version with HDRP is better for production at the moment.

 

This is an older version of HDRP, it just has support for raytracing. If you just want to use HDRP then I would reccomend using one of the released versions. 2019.1 f1 or 2019.2b11 are the two versions you can use that supports an up to date version of HDRP. You can find those here - https://unity3d.com/unity/beta/2019.1

 

I tried 2019.2a9 with 6.6 preview from github, the GI seems fine. Wondering if it is a bug of this DXR preview build

 

For the DXR my editor also crashes if I try to bake lightmaps. Since it's an experimental build for DXR I don't worry about it since it's fine in the other release versions of the editor.

Also in 2019.2, you get the Optix Denoiser or Intel's Open Image Denoiser for GPU lightmapping so that should also help you out with bake time.

 

+1 lightmapping crash
And build error:

Windows player support installed here:

 

yes it works with GTX 1080 ti. but there is no endless mirror effect.

 

AydinDeveloper

will you please tell me what vram usage you have on that scene or other simple ones ?

 

gtx 1080ti, 1080p resolution, only dxr reflection. The above scene is between 120 and 300 fps.

 

The statistics FPS counter isn't really reliable. You can enable the HDRP FPS counter in the debug menu by pressing

Ctrl + Backspace then press End or Page Down (this seems to vary for different PC. On my laptop it's page down and Desktop its End)

When you see the FPS counter and Frame Time use Shift to pin them to the screen and arrow keys to navigate the menu. That FPS and frame time will be more accurate than the Statistics window

Looks like this

 

Trying this scene out on my new RTX Titan and I am getting tons of errors. Continuous errors for "Platform does not support Raytracing Shaders" Not sure where to start on this one, anyone else seen this?

 

Check your windows version, must be 1809 (or developer mode in 1803) and make sure you are using the correct Unity version

 

AydinDeveloper

i was talking about video memory, how much video memory that scene uses ?

 

This ray trace rendering is great for sure!

But as much more I see images of the ray trace environments as more boring it becomes. What is so interesting so see anything that looks like the real world?! Anytime everyone will use this stuff and every game will look the same and everyone can popup some real looking environment 3d viz in some minutes.

So bigger companies build large open environments with a story behind. Nearly every pc and consol game since 2015 can be approached over 1000m. Unity has so much great new and nice stuff beforehand, but acting inside of a broom chamber floating 7 digits precision area, shaders and transforms, vector math, 32bit serialization. Should I list some more?

The responsible developers and visionaries seem to be completely losing sight of their solid technical achievements, but delight in visuals, activate money and manpower for a demo crew and other art stuff technics, and then tan themselves in the sun of glory.

 

True, but this also gives artists more room to breathe as working with lighting and environments would be much easier and more realistic. Artists and developers would still do their thing but the looks will be more enhanced, hower artist should not rely on good rendering to make their stuff look good or hide their bad skills behind it.

 

Will the shader compile bug in Win10 post oct 2018 build be fixed in the next preview build? The current solution here is to install an extra Windows to try the DXR build

 

really "FPS counter really not reliable.". Thanks for the Ctrl + Backspace method. 1080ti, 1080p only the performance of the dxr reflection is fine. If we consider it to be the first version, it will work much more optimized in the future. The skinned mesh does not support the renderer and the performance is dramatically decreasing according to the complexity of the scene. ssr does not lose performance depending on how many objects are on the scene. dxr reflection can not be calculated like ssr?

Translated by google translate.