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(1 edit)

Thank you for responding. Many plugin developers seem to move on after making a plugin and don't respond to questions.

When I added the material instance to the retainer box, the widget would not appear on screen. Admittedly, I'm not experienced in post processing effects and didn't think about adding "RenderTarget" to the Texture Parameter. However that didn't solve the issue I have.

Which engine version are you using? I'm using 4.27, and I don't see some of the options you have in the images. Could that be the issue?

Just to weed out any potential project-specific variables, I started a new 4.27 project with the third person template. I added a basic widget with an image in a retainer box, similar to how you showed in your example. However, with the material instance in the Effect Material and RenderTarget in Texture Parameter, the widget just fails to show. However when I revert the retainer box options to default, the widget is fine. 

In case it mattered, I tried it with and without the RetroResolution actor in the level to apply the post processing.

Have you run into this issue before? Do you know how to solve it? If it's complicated, I can do a Discord call. I'd be happy to donate some money if it ends up working fine.


Unfortunately Itch.io is not letting me post a reply with images. It keeps telling me there's an issue with the server.

So i tried it in 4.27 and ran into some issues myself so its not something you did wrong. It seems i made some updates and forgot upload them.

In 4.27 the screen background is totally black in my case. hopefully this is what is cause your problems cause its an easy fix.

Btw it seems that in 4.27 it doesn’t show the effect in the editor? I have to run the game to see it. In the newer versions of the engine it shows in editor (those pics i posted were from 5.4)

Open up MUI_ScalelineBase (its in “Materials/PostProcess/”) Set Blend mode to “AlphaComposite” image.png

Then connect the Alpha from the “RenderTarget” node to the Material’s Opacity image.png image.png

If this doesn’t fix it for you then we can do the discord call and sort it out Also i made a new 4.27 project to test it out. you can download it for a closer look

It's now more apparent that we're using different versions of the plugin.  I must have downloaded an earlier version than you're showing me. 
The material you're referencing is only titled "PP_ScalelineBase" and the blueprint looks different. It has no "Render Target" parameter that I can see.
This is what the same area of the blueprint looks like for me.