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"

Weird time issue

So I made a normal world position offset for some wind stuff and i get this problem. In the normal viewport it's all shaky and weird, but when I play it's all smooth.

Very weird stuff, please look at the clips and maybe some of you knows a solution.




The Function

Product Version: UE 4.10
more ▼

asked Apr 18 '16 at 02:59 PM in Bug Reports

avatar image

46 1 6

avatar image AndrewHurley Apr 19 '16 at 09:10 PM

Hey jensH,

Have you modified any of the 'Framerate' settings within the Settings > General Settings > Framerate menu?

There are some known and reported issues with WPO (World Position Offset) causing some flickering when applied to landscapes, which could be affecting your issue.

I will run some tests using your set up to verify the report.


Andrew Hurley

avatar image jensH Apr 20 '16 at 08:12 AM

Thanks for checking it out. Where can I find the 'Framerate' setting, can't seem to find them.

avatar image AndrewHurley Apr 21 '16 at 07:10 PM

Go to Settings > Project Settings > General Settings > Framerate

alt text

avatar image jensH Apr 22 '16 at 09:53 AM

Settings These are my settings. I messed around with it but I couldn't get a goot result. It would be weird either way right? I'm working with a time based offset, so framerate wouldn't do anything right? I'm not sure anymore.

avatar image AndrewHurley Apr 22 '16 at 02:20 PM

Yeah, it more than likely is not the cause of your issue, but I wanted to see just in case you modified those settings. I will create a test asset using your wind noise implementation to see if I can reproduce your results.


Andrew Hurley

avatar image jensH Apr 22 '16 at 09:13 PM

Thanks for the help so far, really appreciate it man.

avatar image AndrewHurley Apr 25 '16 at 01:37 PM

You are welcome. Would you mind providing me with a screenshot of the rest of your material editor graph to make sure I am not missing other inputs or nodes. I am also taking a guess that the outcome in the initial image is getting plugged into the normal input of the material in question?


Andrew Hurley

avatar image jensH Apr 25 '16 at 01:55 PM

the wind noise is a material function because it's used in most of the foliage materials. Wind noise

and it's connected like this in the material itself. wpo

the lerp goes strayed in to the wpo. I hope that's enough and otherwise let me know and I will provide more.

I also noticed that it's sometimes jitters less prevalent then other times. I don't know what's going on, it's pretty weird. The clip is from a heavier moment, it's not always as big of a difference.

ow yeah, this is the noise texture I'm using. It's nothing special noise64

noise64.jpg (20.3 kB)
avatar image AndrewHurley Apr 27 '16 at 07:31 PM

Could you provide me with a simple project with this material function and material so I can make sure I am not missing anything. I want to make sure our test cases are identical so I can reproduce the issue you are reporting.

With that said, I do appreciate the screenshots and the additional information I requested.


Andrew Hurley

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

1 answer: sort voted first

Hi, I'm not having the problem anymore. I don't know what I did but it's gone. If it comes up again I'll let you know. Do you still want the project?

more ▼

answered Apr 28 '16 at 09:10 AM

avatar image

46 1 6

avatar image AndrewHurley Apr 28 '16 at 03:40 PM

That is quite interesting that it vanished! I am glad it is resolved in any case. If you do in fact get the issue to occur again, send me the project via a private message on the forums and we can investigate further.


Andrew Hurley

(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