How to make LPV/GI work in 4.14?

Development Rendering
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1

Hi,

I have some serious problems getting the Light Propagation Volumes to work in 4.14.

What I did:

  • inserted the r.LightPropagationVolume=1 in the ConsoleVariables.ini
  • created a map with a directional light
  • checked the “Dynamic Indirect Lighting” box of said light
  • set up an unbound Post Process Volume

I tried to play around with the settings in both the directional light and the post process volume; none of which had any effect on the result: The shadows remain deep black, no form of GI going on. When I check on “Show > Visualize > Light Propagation Volume” the editor definitely shows some kind of cube and some numbers, which also correspond with the settings I’m doing in my light and the pp volume.

Right now I’m a bit out of ideas on what’s going on here. I’d be absolutely great if someone could give me a hint at what I’m doing wrong.

Best regards!

118296-lpv01.jpg
118296-lpv01.jpg1928×1048 307 KB

2

[Update:]

I tried the exact same setup in 4.12, and there it works perfectly fine.

3

It might not make a difference but I use r.lightpropagationvolume=1. Notice the absence of camel case…all lower. I’m not sure if that even matters or not but its worth a shot.