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I have a short space scene that I've included some camera shake on. Everything looks great, but the bloom effect I have on the sun shifts direction with the camera movement! Have attached a short gif that demonstrates the problem, first at normal speed, then frame by frame.

Any ideas on how I might reduce or get rid of this?

Thank you in advance!

Shaky Bloom

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  • $\begingroup$ Can anyone help? $\endgroup$
    – Marcus Wood
    Commented Jul 20, 2020 at 12:06
  • $\begingroup$ Try disabling bloom and using a glare node instead in the compositor, if that still not helps then you can use a gradient map to create bloom effect instead. $\endgroup$
    – A D
    Commented Jul 20, 2020 at 12:23
  • $\begingroup$ If you don't know how then you can just ask by commenting or tell if it works or not. $\endgroup$
    – A D
    Commented Jul 20, 2020 at 12:24
  • $\begingroup$ Thank you for answering! Will give the first a try! $\endgroup$
    – Marcus Wood
    Commented Jul 20, 2020 at 12:39
  • $\begingroup$ The glare node is ok, but loses a lot of the more interesting aspects of the bloom (Chromatic aberrations, smooth light falloff etc). I'm not sure how I would go about creating a bloom effect with a gradient map, could you point me in the right direction? Thank you for your help so far! $\endgroup$
    – Marcus Wood
    Commented Jul 20, 2020 at 13:26

1 Answer 1

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Thank you for the help, none of the solutions fixed what I needed unfortunately.

However I did manage to fix the problem, and for anyone who is facing a similar issue, here's how I did it.

I figured out that the way bloom was being calculated was in relation to the emitters angle to the camera. With my shake being set on the x axis, small rotations were being amplified by the bloom effect because the angle in relation to the camera was changing and as a result, so was the direction it was 'blooming' the light.

To fix it, I made one very simple change, instead of a shake in the rotation, I applied the effect to the translation in the z axis. The motion feels pretty much exactly the same, but instead of it changing the angle the camera points at, it moves the whole camera up and down a bit. It's worth pointing out there will still be some shift in the bloom effect as the translation still adjusts the angle a bit, but its a lot less noticeable now.

Mission accomplished!

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