Is it possible to fake bloom effect?

Graphics Post-Processing
1

My game is for mobile. I am so obsessed about bloom effect and I love to use it on my game. I worked really hard on the performance and without bloom the game runs nearly 60FPS on my moderate android device. With bloom it drops to 30FPS. I wonder if there is a cheap technique to mimic the effect?

I use a 4096px atlas for textures. To fake the effect I applied it to a plane and captured the result of applying bloom using a render texture and saved it to a png file. The resulting texture has some glow effect on it but it is different from the genuine bloom. The genuine bloom has much more realism.

Also My scene is created completely procedural from scratch. So lightmapping is not an option.

Here is the comparison between normal,bloomed and fake bloomed scenes:

2273753--152457--bloom.jpg
2273753--152457--bloom.jpg1116×467 175 KB

So what you guys think? Are there any known techniques to mimic bloom?

2

I don’t know of any techniques to mimic bloom, because I haven’t looked into the subject.

If your looking for feedback on the look of the scene you provided;
I don’t see much improvement in either bloom or fake bloom over the original - which imo with some added shadow detail would look just fine.

1 Like
3

That’s good to know. Thanks