ARFoundation now supports LWRP 4.8.0-preview

[ROBYER1]

@n1ghtbird

Hi all,
having a strange problem with rendering shadows in my scene. I have tried adjusting LWRP settings but with no luck. Maybe you might be able to suggest a solution.

Here is a iOS device screenshot, and editor screenshot as to how it should look.

It looks almost like the shadows have been inverted.

The problem persists with and without PostProcessing activated.

These are the shadow settings in LWRP Asset:

• Shadow distance 250
• 4 Cascades
• Depth Bias 1
• Normal Bias 1

I also tried:

• varying the depth bias.
• disabling and enabling MSAA in the LWRP settings. (HDR and MSAA are off on the camera)

There is a single directional light in the scene, and I tried varying light estimation on and off.

My Setup:
MacOS
Unity 2018.3.0f2
ARFoundation 1.0.0.preview.22
ARKit XR Plugin 1.0.0-preview.23
Lightweight RP 4.9.0-preview

This is a very common mistake people make, be sure to check your per-platform quality settings (the green ticked box is the default for your platform.

[n1ghtbird]

@ROBYER1_1

This is a very common mistake people make, be sure to check your per-platform quality settings (the green ticked box is the default for your platform.

Thanks for the suggestion @ROBYER1_1 . I have tried changing quality settings to the High, and Very High as default for mobile, but this hasn’t made a difference unfortunately. Also tried changing the shadow resolution settings as well but that didn’t work either.

UPDATE: I created a clean LWRP project and imported the ARFoundation Sample with LWRP Support. Using the sample scene I managed resolve this. Thanks for your help.

[real2u]

WhatsApp Video 2019 02 11 at 20 32 38

Hi there,

We have this happening on our project and we can´t understand the reason.

This is our scriptableRP file

We are not scaling the model, we are only scaling the ARSessionOrigin as taught in other topics.
This is not related to the camera clipping plane, since we can still see the building. It looks very similar to vanishing realtime shadows, however part of the texture disappear as well and we have changed the shadow distance multiple times.

Has anyone been using LWRP and found this issue as well?

This is a VERY big model, maybe that´s the reason? Is there a magic number we can increase to stop this from happening?

UPDATE

WhatsApp Video 2019 02 11 at 21 59 00

This the SampleLWRPScene from ARFoundation now supports LWRP 4.8.0-preview

To replicate the error we set ARSessionOrigin scale to 667,667,667 and the Cube scale to 600,50,300 (to replicate the size of or building). Everything is baked, we can increase shadow distance and nothing happens

UPDATE2
To fix the issue, we just decreased the model size by 10 so this way the smaller size was closer to the camera, since we didn´t need to scale ARSessionOrigin that much.

Thank you in advance guys

[newguy123]

@real2u

Has anyone been using LWRP and found this issue as well?

This is a VERY big model, maybe that´s the reason? Is there a magic number we can increase to stop this from happening?

UPDATE2
To fix the issue, we just decreased the model size by 10 so this way the smaller size was closer to the camera, since we didn´t need to scale ARSessionOrigin that much.

Thank you in advance guys

I’ve had the same experience with my model of 400meter by 350meter. Scaling the model is not an option as I will also have particles in there.

I couldnt solve it so I had to switch back to standard pipeline

[ROBYER1]

@n1ghtbird

Thanks for the suggestion @ROBYER1 . I have tried changing quality settings to the High, and Very High as default for mobile, but this hasn’t made a difference unfortunately. Also tried changing the shadow resolution settings as well but that didn’t work either.

UPDATE: I created a clean LWRP project and imported the ARFoundation Sample with LWRP Support. Using the sample scene I managed resolve this. Thanks for your help.

Drats, was hoping that was a quick fix - I’m keeping an eye on the SRP stuff as I’d actually like to use it on a project sometime soon when it’s as robust as the standard pipeline

[mdunk]

@n1ghtbird

Thanks for the suggestion @ROBYER1_1 . I have tried changing quality settings to the High, and Very High as default for mobile, but this hasn’t made a difference unfortunately. Also tried changing the shadow resolution settings as well but that didn’t work either.

UPDATE: I created a clean LWRP project and imported the ARFoundation Sample with LWRP Support. Using the sample scene I managed resolve this. Thanks for your help.

FWIW we’re having what looks like this same problem as well. Wildly guessing, but seems like the geometry somehow gets inverted or otherwise incorrectly projected for shadow generation on IOS - haven’t tried android. I think we’re also seeing a variant of the problem in the vanilla sample off the git. Curious to know if anyone else has run into this.

Engine vs IOS:

Test scene:

[Blarp]

arfoundation + lwr is making my camera quality EXTREMELY grainy. In vuforia with lwr it looks perfect, but once i swap it with arfoundation, it looks terrible.

The 3d models look fine, its just the phone camera

Any advice? My quality settings are set to max

[Blarp]

arfoundation and LWR seems to have a very grainy camera feed. I was thinking it was because i didnt have the cameraoptions script attached to anything, so there was no autofocus happening.

When I add, the camera feed goes black. Most likely due to the LWR support using a special ar camera background texture to make this possible and autofocus not playing nice with it.

[virtualHCIT]

How do we get shadows on transparent planes (shadow matte) to work with LWRP and AR Foundation?

[n1ghtbird]

@virtualHCIT

How do we get shadows on transparent planes (shadow matte) to work with LWRP and AR Foundation?

If Im not mistaken this feature has not yet been implemented in the framework, but someone please correct me if I am wrong. Have a look at this discussion and proposed solution:
https://discussions.unity.com/t/580609

[eco_bach]

Great news! Does this automatically mean support for latest ARCore and ARKit?
The reason I ask is that in the Feature comparison and roadmap chart,
while LWRP 3.30 is indicated as being supported in ARFoundation, both ARCore and ARKit are listed as ‘in development’.

Additionally, what would be really useful in troubleshooting is a master list with all the project level changes and differences between a ‘regular’ ARFoundation project using nonscriptable Render pipeline with Standard Shader and the newer LWRP.

[brgishy]

Hi @jimmya , thanks so much for the LWRP AR Foundation sample. I’ve been wanting to add LWRP to my AR project for a while now, so I’m pretty stoked.

I am running into a bug with it though and I’m not sure how to fix it. I’m curious if anyone else in the forums has run into this bug as well. I’ve attached a simple unity project that demonstrates the bug (arfoundation-lwrp-multiple-cameras.7z).

In my project I have a camera that’s only job is to render the UI. I set the Culling Mask to UI and the Clear Flags to Depth Only.

When I open the SimpleAR scene, remove the LWRP Asset from the Graphics settings and then build and run on my device, everything works great. I can see my text at the top of the screen and see the camera feed.

But, When I open the SampleLWRPScene scene, hook up the LWRP Asset file in Graphics settings and make a build. When I run it on my android device I do see my text, but instead of seeing the camera feed I only get a blue screen (the same color as my UI camera’s clearing color).

Anyone have any ideas of the best way to fix this?

Thanks in advance,

Brian

4374517–396670–arfoundation-lwrp-multiple-cameras.7z (867 KB)

[phili_maas]

I really hope there is an update coming soon for latest unity, lwrp and arkit/core.
Arkit tracking and lwrp works in latest 2019 but I also don’t get the camera feed and don’t know how to fix. Although for people understanding the renderpipline it shouldn’t be to hard to adapt the lwrp support branch to the latest lwrp version?!

[xvart]

@jimmya is there a timeline for non-preview Lightweight RP integration the AR Foundation?

[jinC_H]

just simple cant create custom render assets!

Assets>Create>XR>LWRPBackgroundRendererAsse does not exist

[jinC_H]

@jinC_H

just simple cant create custom render assets!

Assets>Create>XR>LWRPBackgroundRendererAsse does not exist

just for the record, Assets>Create does exist! the rest are not

[Blarp]

Anyone have a working update of this in the new arfound & LWR in 2019?: https://github.com/Unity-Technologies/arfoundation-samples/tree/lwrp_support/Assets/LWRPSupport

[edee1337]

@Blarp

Anyone have a working update of this in the new arfound & LWR in 2019?: https://github.com/Unity-Technologies/arfoundation-samples/tree/lwrp_support/Assets/LWRPSupport

I’m looking for help with this as well

[fotalik]

Today i migrate my project from 2018.3 to 2019.1 and LWRP with Shadergraph packages updated to 5.7.2 version automatically, and scripts from https://github.com/Unity-Technologies/arfoundation-samples/tree/lwrp_support/Assets/LWRPSupport no longer supported)

[winstonmso]

i can’t get anything to work on the UNity 2019.1, Ar samples just loads black screen when deployed to Phone. Has anyone here made it work with the latest LWRP?