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"

How can I add an image sequence to a light function?

I have a looping image sequence that I want to apply to a spotlight.

I want to project the image sequence animation like a film or video projector would but using a spotlight

I have tried creating a spritesheet of the animation and using that with a flipbook and then connecting that to a light function material.

I am getting the following errors. Error [SM5] Light function materials must be opaque. Error [SM5] Function FlipBook: (Node TextureSample) MipBias is only supported in the pixel shader

Any help greatly appreciated -Thanks!


Product Version: UE 4.16
more ▼

asked Nov 04 '17 at 09:54 PM in Using UE4

avatar image

13 1 2

avatar image rogrobin Nov 11 '17 at 03:19 PM

Bumping this in case anyone can help..?

avatar image ColdSteel48 Nov 11 '17 at 03:56 PM

Show us your material and a light function.

avatar image Mako2003 Jan 17 '18 at 07:53 PM

Would love to get a response too i cant figure it out... Anyway here are some pics: https://i.imgur.com/trNNXVC.png https://i.imgur.com/KV5p0YJ.png https://i.imgur.com/3xTSTTH.png https://i.imgur.com/wd1lmG8.png

I have tried making it a separate material function and then calling it into the actual material but after i put the output to emmisive color the material function just shows the small error message https://i.imgur.com/z67ZRY9.png

Any help is appreciated.

PS:sorry for bad english

avatar image Daniel Mø Dec 23 '18 at 03:47 AM

The Flipbook node has a pin "Use Mip Bias ..." which defaults to true. Use a bool to make it false and it works

(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