Bug [Oculus] Unlit shadergraph shader jitter when Application Spacewarp is enbaled.

There is a bug with Application SpaceWarp, where unlit shaders created with shadergraph jitter with AppSW. I've set up a project according to instructions from https://developer.oculus.com/documentation/unity/unity-asw/ and used packages from https://github.com/Oculus-VR/Unity-Graphics/tree/2021.2/oculus-app-spacewarp. All shaders work correctly (both built-in URP and lit shadergraph), except the unlit shadergraph shader. This seems to be caused by motion vectors not being calculated correctly. It happens both in 2021.2 and 2021.3. Is there going to be a fix for this?

 

I'm not sure if motion vectors is possible with unlit. The problem might be there. Maybe make a custom lit shader with the same visuals if unlit if possible?

 

Why would motion vectors not be possible on this type of shader? Is there a technical reason for this?
Also I'm using the unlit shader because I'm doing my own lighting calculations.

Is there an option to use a lit shader without utilizing the unity's built-in lighting? It would be applied on top of my lighting, so the default behavior is not an option.

 

If you use custom shaders maybe edit in motion vector support yourself. The oculus guide has a bit on how to add this

 

The issue is that I'm using shadergraph to create my shaders and I'm not aware of any way of adding custom code except editing the generated shader code, which is a bit tedious to do every time I make a change (and tbh the generated code is a bit too complicated for me, I know only the basics).

 

Use Nukadelic's ASW Sample project, and move your assets over to it.

https://github.com/nukadelic/unity-application-spacewarp

It's a big job, but the perf boost is worth it. all your shadergraph shaders will move in just fine, and include the motion vectors.