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How can I edit Post Process Blendables on Mouse over?

I'm trying to highlight a static mesh when the mouse cursor is hovering over it (Same effect used in L4D for picking up ammo, guns etc), but I cant seem to change the post process volumes settings via BP. Here's an example of the blueprint I'm using so far:

alt text

I've also tried variations from all of the following links/questions and none of them have worked yet: https://answers.unrealengine.com/questions/169173/how-do-i-set-post-processes-in-bp-on-key-input.html https://answers.unrealengine.com/questions/17819/blueprint-postprocess.html https://answers.unrealengine.com/questions/10091/unable-to-change-global-postprocess-settings-at-ru.html https://answers.unrealengine.com/questions/195161/blendable-array-after-modification.html https://answers.unrealengine.com/questions/49266/select-object.html https://answers.unrealengine.com/questions/84425/how-to-toggle-post-process.html

Is it possible to highlight an object on mouse over in UE4 yet? If so, how can I have it highlight the object on mouse over, then remove the highlight once the mouse cursor is no longer hovering over the static mesh?

Thanks in advanced!

Product Version: UE 4.8
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asked Aug 15 '15 at 03:57 PM in Rendering

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I could not find find any information about it also and I needed it badly for interactive objects in Top Down point-and-click game. I finally did it like this. If there is any other more efficient or flexible in further work way please let me know :)


Be sure you have "Enable Mouse Over Events" checked in your Controller Blueprint


You need material. You can get one from Content Example. It's called "M_Highlight" https://www.youtube.com/watch?v=j8gjvKyaQuU

I had ERROR in node you can see in screenshot. Just select this node and change it Scene Texture Id from Scene Color to PostProcessInput() and Save. I also changed it color to be more "juicy"

3) Find in your scene Outliner Post Process Volume. If you dont have one, make one :) and add in Settings -> Blendables the material you just "made" :)

4) Then I simply added this nodes to object blueprint (one i need to be outlined/interactive on mose over)

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answered Dec 12 '15 at 09:03 PM

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avatar image a1ter Dec 12 '15 at 09:14 PM

Variable "Highlight" in Variables on last screen is not important. You dont need to create it, I just removed it (trash from earlier attempt :) )

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