LWRP + Post Processing = Completely black viewport

Hi everyone,

I have a project I was working on on the Standard Renderer Pipeline. Today I thought I'd switch to LWRP because of ShaderGraph. Anyway, after switching the project over I found my entire viewport (scene view) is black. Like pitch black. I disabled the PP Layer component and it displayed properly (but without effects).

At first I thought perhaps because the PP profile had AO and I know LWRP doesn't support AO so I removed it along with Motion Blur. Still the same thing.

I am getting this error in the console:
RenderingCommandBuffer: invalid pass index 1 in DrawMesh


I tried using older version of PP (instead of 2.1.7, 2.1.6 or even 2.1.4) but didn't fix the issue. I am on 2018.4.1f1 (LTS. Any ideas what is going on?

Thanks.

 

Hi,

I needed to re-import the PP package after moving to LWRP:

• Reboot Unity
• Project > Packages > Right-click Post Processing folder > Reimport

Not sure if re-importing is always necessary (not mentioned in the current documentation), but other threads have reported the issue as well:
https://forum.unity.com/threads/lwrp-and-post-processing.668560/

 

Thanks for the suggestion. Unfortunately didn't fix it. Rebooting didn't work and switching versions (essentially a reimport I think) didn't work all of which I did after moving to LWRP.

Now typing this... could it be an issue with Cinemachine?

 

LWRP is officially supported on 2019.1, not sure about 2018.x. You could try using 2019.1, upgrade PP and whatever. You could make a new project, and add in all your major elements one by one to figure out what is breaking.

 

I finally got it fixed. Apparently, I needed to remove LWRP and reinstall it a couple of times until the PP recognized I am working with LWRP and locked non-LWRP features off. Removing once and reinstalling didn't work, so did it again and it just worked. Perhaps it is a bug in PackMan not updating the dependencies correctly.