Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Lighting Fails to Build with LPV

I'm attempting to create a dynamic emissive material as per the directions listed: https://forums.unrealengine.com/development-discussion/rendering/6116-light-propagation-volume-now-works-with-emissive-material?6914-Light-Propagation-Volume-now-works-with-Emissive-Material!!=



  1. Add r.LightPropagationVolume=1 to my console variables .ini and restart.

  2. enable Emissive (Dynamic Area Light) in the material.

  3. Add a directional light, enable Dynamic Indirect lighting, set Dynamic Shadow Distance StationaryLight to 10, and set intensity to .004

  4. In World Settings, check Force No Precomputed Lighting.

  5. Add a post process volume and set to Infinite Extent (Unbound). LPV section is visible with parameters.

  6. Attempt to rebuild the lighting, and it fails.


Product Version: UE 4.18
more ▼

asked Dec 11 '17 at 11:09 PM in Rendering

avatar image

21 3 5 7

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

0 answers: sort voted first
Be the first one to answer this question
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question