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"

Can UE4 produce text effects?

I want to simulate a vintage long persistence phosphor VDU. I can do it in flash and in unity but want to know if it is possible using unreal engine 4. I don't know enough about it to know where to start. Can UE4 do text effects? can I draw lines on the HUD? Any help appreciated.

Product Version: Not Selected
more ▼

asked Apr 21 '15 at 04:32 PM in Using UE4

avatar image

16 1 2 3

avatar image RyanB STAFF Apr 21 '15 at 04:37 PM

Sorry I am not sure what a "long persistence phosphor VDU" or even just VDU is.

Drawing lines should be doable using the Draw Line function in blueprint.

By "text effects" do you mean things like outer glow and shadow? There is no premade material to do it but that stuff should all be pretty easy to set up since our font materials are already using distance fields. Once I know if thats what you meant I can show you an example.

avatar image Rainsmith Apr 21 '15 at 08:10 PM

LOL. A VDU is what we called monotors back in the olden days = Visual Display Unit.... The old terminals had phosphors which lasted a while to give filter out flicker because of the low resfreh rate; HF electronics was quite unrelable on those days...

Heres an example. Tremendous thanks for your prompt response.


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

1 answer: sort voted first

Ah cool, I do remember that fading text from old 386s now that you mention it :)

There is no automated system for doing that but everything there looks doable. You would have to build some blueprint macros that handle things like "erase" which would internally set the color to much darker and fade it even darker until eventually deleting the text.

In terms of getting those pixellated fonts, you need to make a new font material. I decided to take a quick stab at it for fun. I just create a "TextRender" actor, found the material and duplicated it and changed it to translucent and did the following stuff:

alt text

Then by changing "sharpness" and "Wavyness" you can get a bunch of different looks:

alt text alt text alt text

For the third one I also added a Y-axis scan line that combines with the Z one: alt text

(I used worldposition but screenposition could be used too)

Of course these pixels aren't really centering within the correct part of each font letter, if you want to solve that problem you most likely need to create a new font which gets a bit out of my expertise. Should be possible to get pretty close though with tweaking and maybe blurring the font a bit to use more of the combined shader created shapes.

fontexample1.jpg (87.6 kB)
font1.jpg (34.8 kB)
font2.jpg (38.9 kB)
font3.jpg (33.0 kB)
worldy.jpg (47.1 kB)
more ▼

answered Apr 21 '15 at 08:31 PM

avatar image

2.1k 56 24 118

avatar image Rainsmith Apr 21 '15 at 08:37 PM

I am bowled over... I am a complete newbie to UE, but i wont be by this time next week... Thank you kindly for this advice.

(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