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"

odd lightmaps after building lights

Hello, When I build lights I always get this bright spots, I tried many different lightmaps set up, but I always get them. Any idea on what could it be?

Thanks :)

alt text

![alt text][2]

Product Version: UE 4.19
more ▼

asked Apr 20 '18 at 11:14 AM in Using UE4

avatar image

97 15 21 24

avatar image engelmanna Apr 20 '18 at 03:49 PM

I have a few questions:

  1. Do you have your lightmap UV set to the correct UV index?

  2. What is the size of your lightmap? The padding between the UV island in question and edge could cause bleeding from other lightmaps

  3. Does the issue still occur if you use auto-generated lightmaps?

avatar image davi211 Apr 20 '18 at 04:15 PM
  1. yes, it is at the right index.

  2. at the moment is 1024, I had similar thought and I tried to move things around and far from the edge and it did not make a difference.

  3. yes, it does

At the moment I fixed by extruding an edge at the bottom of the wall and making a 90-degree angle, which made the issue disappear. However, no other wall has this issue so I have no clue why this would. Really annoying as I spent so much time trying different things. But I guess a couple of extra faces won't kill performance ^^

avatar image engelmanna Apr 20 '18 at 05:13 PM

what quality level are you baking on? could the dots be some sort of light bleed? instead of extruding extra faces, you could either try and extend the existing face down so it penetrates the floor, or try uping the bake quality and see if that fixes it.

avatar image davi211 Apr 21 '18 at 08:01 AM

No is not light bleed I made sure of that, I tried all the best quality for the lighting changing world setting. I tried also to penetrate the geometry end make sure no light was coming from down or behind, but it did not work. Whatever I do to increase the quality it just makes those spots more defined.

(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