Unity 5: Bloom causes artifacts on Terrain

Question

I recently started polishing one of my levels, and among others I played around with Bloom. I really like what it adds to the visuals, but I have a weird issue, that I've been struggling with for a couple of days. Whenever the terrain is in view white spots appear, and flickers around as I move the camera. When the camera is still, the spots are still as well. These spot vary in intensity, it almost seems like they're like a "shine" or flare or something. I've pointed out a few of the spots on this image:

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I am currently using deferred lighting, and if I change to forward rendered, the problem goes away, but I would prefer to be able to use deferred lighting.

I've tried both gamma and linear color space, with the same results.
If I remove or disable the bloom image effect (I've tried with both Bloom, and Bloom(Optimized), the problem goes away, but that is not an acceptable solution either.
If I disable the directional light in my scene (The only light source currently), it get's dark, and the problem also goes away, which have me thinking that this is in fact some kind of shine, rather than a bug.
Disabling shadows, does not fix the issue either.

At this point I am not really sure what to do.

If anyone out there have any ideas or solutions I'd really appreciate it. I've tried searching for an answer (a lot), but the closest I come is people having issues with terrain trees, and that seems to have been a Unity 5 Beta issue- So if you have an idea, I'd really like to hear it.

Thanks for your time.

Answer 1

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Answer by Afassolas · Jun 05, 2015 at 09:12 AM

These flickers are caused by the Bloom script you are using. Objects with high brightness increase the bloom and create flares. You need to play with the flare settings of the bloom script. Try Bloom intensity 0.4 bloom threshold 0.3, flare Threshold 0.4

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NasarethMekuri · Jun 07, 2015 at 10:50 AM 0

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Thanks for your reply.

I was suspecting it was something like it. I have already been playing around with the settings. I've been working on a compromise of reducing the intensity and simply making my grass texture darker. I'll keep playing around with it, at least now I know I'm working in the right area!

Thanks for your answer :-)

Answer 2

Answer by Ony · Aug 26, 2015 at 09:38 PM

There's a script at the very bottom of **this post** that will help with the issue. It worked for me. :)

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Unity 5: Bloom causes artifacts on Terrain

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