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"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

Emissive static lighting breaks with no "static shadow".

When using an emissive object as a lightsource for baked-lighting:

If the object is set to not cast a static shadow, it's light is not baked. In the screenshot provided, both cubes have the same material; the difference being that the cube on the right has the option "static shadow" unchecked. Not sure where to go from here.

alt text

Product Version: UE 4.18
capture1.jpg (185.9 kB)
more ▼

asked Dec 07 '17 at 04:11 PM in Bug Reports

avatar image

11 1 4

avatar image Jon X ♦♦ STAFF Dec 07 '17 at 08:34 PM

Thank you for your report. We will begin investigation into this issue as soon as possible. If we are unable to reproduce the problem, or need more information, we will follow up with some additional questions for you. Otherwise, we will post an ‘Answer’ once the issue has been logged in our bug database or we have a solution for it.

avatar image kippernicus Dec 07 '17 at 08:37 PM

Thank you Jon. I did discover that enabling "Shadow Indirect Only" on the light-casting object does seem to fix this issue. Not sure how it correlates with disabling static shadows, but it could be used as a work-around for some cases.

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

1 answer: sort voted first

Hi kippernicus, I was able to reproduce this issue in UE versions 4.15, 4.16, 4.17, and 4.18. After consulting with a lighting expert, it appears that this is not actually a bug with the engine, but is working as intended.

more ▼

answered Dec 13 '17 at 10:11 PM

avatar image

Jon X ♦♦ STAFF
810 3 4 6

avatar image kippernicus Dec 20 '17 at 07:03 PM

Thank you for the update. Can you confirm that enabling "Shadow Indirect Only" on the light-casting object is the proper solution for this issue?

avatar image Jon X ♦♦ STAFF Jan 22 '18 at 04:23 PM

Yes, that is correct.

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