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"

Lightmap problem after reopen project

alt text alt text

Lightmap problem after reopen project. Rendering lightmap> save scene> close program>open again> bad lightmap?!?!

Product Version: UE 4.12
conference.jpg (1.2 MB)
screen problem.jpg (88.4 kB)
more ▼

asked Aug 11 '16 at 01:22 PM in Rendering

avatar image

1 1 3 6

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

1 answer: sort voted first

With the information provided, this is not enough to proceed.

This really only looks like it could be one of the following:

  • Low lightmap resolution

  • Poor UV Lightmap layout: UV islands get too low of a resolution, even with a large lightmap

  • Shading differences between actors with static indirect lighting, which is a limitation of the current implementation of lightmass.

To continue investigation the following information is needed::

  • Needs to be reproducible. Are you able to reproduce this in a blank project or only with your level/project/assets?

  • Screenshot of Lightmap Density View (ViewMode > Optimizations > Lightmap Density)

  • Screenshot of UV Layout of the most offending assets like the curved desks

  • Specific light settings used

Thank you!


more ▼

answered Aug 11 '16 at 03:13 PM

avatar image

Tim Hobson ♦♦ STAFF
48.8k 888 103 878

avatar image marfuse Aug 19 '16 at 01:24 PM

alt text

error_01.jpg (48.8 kB)
error_02.jpg (365.6 kB)
avatar image Tim Hobson ♦♦ STAFF Aug 23 '16 at 06:54 PM

If you provide the other information I requested I'll have much more to work from and offer some suggestions.

(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