<p>The Unreal Engine documentation has good explanations for their various post-processing effects like Bloom. You can find more information about it here: <a href="https://docs.unrealengine.com/en-us/Engine/Rendering/PostProcessEffects/Bloom" rel="nofollow noreferrer">https://docs.unrealengine.com/en-us/Engine/Rendering/PostProcessEffects/Bloom</a></p>

<p>In the case of UE4, bloom becomes observable once color values push beyond the 1.0 value.</p>

CC BY-SA 3.0
2018-04-12T21:04:51.613Z
You can also turn lots of things on and off in UE4 itself, using the ['Show' menu in the editor viewports](https://docs.unrealengine.com/en-us/Engine/UI/LevelEditor/Viewports/ShowFlags).
Nathan Reed
CC BY-SA 3.0
2018-04-16T06:03:48.100Z
@mbl 'bloom' is an example, not my real confusing effect.

Something like 'Sub-Surface Shading' or 'Ambient Occlusion', I can hardly tell what effect exactly it shows when with or without it.
naive231
CC BY-SA 3.0
2018-04-12T20:56:19.803Z
2018-04-12T20:56:19.803Z
mbl
<p>I'm studying Unreal Engine, this chapter is talk about visual effects: <a href="https://docs.unrealengine.com/en-us/Engine/Rendering/Overview" rel="nofollow noreferrer">Rendering Overview</a></p>

<p>Some of them has obvious picture I can see whats the differences. But not all of them. Is there a site can let me input the keyword, like 'bloom', then it shows the description, a image contains 'no bloom' and 'has bloom' both?</p>

<rendering><shader>
Where can I find those visual effect demonstration?
naive231
# Where can I find those visual effect demonstration?

(Asked by: username_0 on 2018-04-12)

I'm studying Unreal Engine, this chapter is talk about visual effects: [Rendering Overview](https://docs.unrealengine.com/en-us/Engine/Rendering/Overview)

Some of them has obvious picture I can see whats the differences. But not all of them. Is there a site can let me input the keyword, like 'bloom', then it shows the description, a image contains 'no bloom' and 'has bloom' both?

**Tags:** rendering, shader


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## 1 answers

### Answer by username_1 on 2018-04-12. Score: 3

The Unreal Engine documentation has good explanations for their various post-processing effects like Bloom. You can find more information about it here: <https://docs.unrealengine.com/en-us/Engine/Rendering/PostProcessEffects/Bloom>

In the case of UE4, bloom becomes observable once color values push beyond the 1.0 value.

> **Comments:**
> **username_2**: You can also turn lots of things on and off in UE4 itself, using the ['Show' menu in the editor viewports](https://docs.unrealengine.com/en-us/Engine/UI/LevelEditor/Viewports/ShowFlags).  
> **username_0**: @username_1 'bloom' is an example, not my real confusing effect.  Something like 'Sub-Surface Shading' or 'Ambient Occlusion', I can hardly tell what effect exactly it shows when with or without it.  

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