Limited support
This feature is only present in Momentum Mod and Portal 2: Community Edition.

Troubleshooting

This is a list of currently known issues and some troubleshooting tips for any issues with volumetric lighting.

"The volumetrics don't show up!"

  • Make sure you have Volumetric Light Mode set to Dynamic Only or Enable Volumetrics enabled.

  • Make sure Volumetric Density or Volumetric Intensityis not 0.

  • Make sure the light is actually working and/or visible.

"The volumetrics are too intense!"

  • Seems like the Volumetric Density KeyValue is set too high. The value of 1.0 makes the volumetric ray completely opaque, so make sure it is set to something around 0.1 for more realistic results.

"The volumetrics for a light source are everywhere, even behind walls!"

  • Volumetric lighting is shadow dependant, you need to make sure the Shadowed flag is checked when making shadowed volumetrics. If the flag is enabled but volumetrics are still leaking, then you might have too many dynamic shadows updating at once. See clustered troubleshooting page for more information related to the issue.

"My volumetrics are broken and corrupt!"

  • Certain AMD GPU models are known to have trouble running the clustered renderer, and since volumetrics are shadow dependant, this issue relates to them as well. If you experience this, let us know what GPU brand/model, operating system and other hardware specs you're using. Clustered lights may also act weird when running the game on Linux under DXVK, however the circumstances in which they break should not be possible in production.

If you have any issues that are not addressed in this article, make sure to report it to us on the Strata issue tracker.