Disable Bloom on Item Outline

Development Rendering
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1

Hi,

I have a post-process material that draws an outline around items but I also have a little bloom enabled in the post-process volume.

2

The problem is that the bloom makes the outline very bold and bright. Is there any way to prevent the bloom from doing that to the outline?

1

Thanks. :blush:

2

Hey @VelikyPanda!

There are ways to exempt something from a post process effect by using a custom depth pass, that might be the knowledge bridge to get you where you need to go!

Here’s a thread where a few separate options were laid out!

3

Thanks :man_bowing: Unfortunately, that tutorial was of no help to me because it excludes the whole object from the post-process volume. I need to exclude the outline in my post-process material.

4

I don’t think there’s a way to differentiate.

The way I’ve usually seen it done is the outline be a post-process volume all to itself.
What if you have two, one with bloom and no outline, and one without bloom and yes outline, and toggle the layers active and inactive? Would that theoretically work?

5

That wouldn’t work as I would have to turn off the bloom in the entire scene for as long as the outline is on. :pensive:

6

What I mean is disable it for a specific actor. Something like:

Line trace-> out hit actor->
IsPickup?True-> Out hit actor: bloom post-process exempt == True && outline post-process exempt == false

Then again, if you play around with the numbers on your outline material you may be able to just make it dimmer WITHOUT the bloom so the bloom brings it to a normal brightness (Don’t know why I didn’t think of that first :laughing: ).