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"

Issue with 'Light function' on transparent material (GIFs included!)

I am using a 'light function' with my sun (a point light) to create cloud shadows across my landscape. It simply consists of a cloudy looking noise texture that pans slowly. It works great except for when it falls on an object with a transparent material. Here's a GIF:alt text

On both the clouds and water planes in my environment, the light function seems to stretch weirdly over the mesh, causing this visible 'striping effect' as the light function pans across. The striping moves/jitters as the camera pans, too. However, the problem disappears/resolves when I get close enough to the object, and returns to what it should look like (a cloud texture passing over the object). This GIF shows what it looks like as I get closer (AKA what it SHOULD look like):

alt text

Unfortunately, changing the Fade Distance value seems to have no effect on transparent materials. The light function is always present on transparency and only resolves at this seemingly arbitrary distance. PLEASE HELP! Any ideas/suggestions are greatly appreciated.

Product Version: UE 4.15
incorrect.gif (228.6 kB)
correct.gif (220.0 kB)
more ▼

asked Feb 27 '17 at 09:38 PM in Rendering

avatar image

13 4 8

(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