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#unrealengine#bloom#fftconvolution

Unreal Engine - Image-Based (FFT) Convolution for Bloom

Unreal Engine

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  • Recommended by 1 person: 1 in engineering communities.
  • Presented by David Hill
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Intermediate. Assumes working knowledge.

34K views9 years ago1 recommendation

Graphics and audioGame developmentRenderingUnity, Unreal and Godot

David Hill explains how to use and optimize image-based FFT convolution for realistic bloom effects in Unreal Engine.

Announce Posts: forums.unrealengine.com/showthread.php?145762 Image Based (FFT) Convolution for Bloom is a brand new rendering feature in 4.16. With this new post-process upgrade, you can create physically-realistic star-burst effects for your bloom. David Hill joins the stream to show off how to activate the feature and when you will want to use it for the best performance to quality tradeoff. Download the Powerpoint here: cdn2.unrealengine.com/CommunityTab%2FEnglish%2F2017%2FMay30%…

Why it's here

1 person recommends this

What people say. Recommended for learning how to achieve high-quality bloom streaks using FFT convolution.

u/Wittyname_McDingusin r/GraphicsProgramming • Recommends

On “How to get beautiful bloom streaks?”

Unreal engine apparently achieves this look by doing what's called an "FFT convolution bloom" (for something google-able). Here's a video with a dev discussing it. link to this video
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