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"

Building lighting is slow

After migrating a project from version 4.19 to 4.20, build lighting has become really slow. To be more specific, with version 4.19 lighting calculation went from 0% to 1% after a minute or so, but after moving to version 4.20, the same scene takes 15 minutes or more to go from 0% to 1%. Speed seems to be ok that, i.e. moving from 1% - 100% seems to take the same time in both versions but I've only checked the times on a preview quality level. Upgrading the whole project to 4.20, or just migrating the level I'm working on from 4.19 to a new empty 4.20 project, has the same result. I haven't tried building everything back from scratch to check the results,as it would be too time consuming. Does anyone have any suggestions please?

Product Version: UE 4.20
more ▼

asked Nov 06 '18 at 10:41 AM in Rendering

avatar image

1 1

(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