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The Technology Behind the Elemental Demo - Unreal Engine

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Bloom 1/2 [Kawase04]<br />

� Goal: Large, high quality, efficient<br />

� Down sample:<br />

A = downsample2(FullRes)<br />

B = downsample2(A)<br />

C = downsample2(B)<br />

D = downsample2(C)<br />

E = downsample2(D)<br />

� Blur during downsample avoids aliasing<br />

Without blur (1sample):<br />

With blur (4 samples):<br />

Advances in Real-Time Rendering in<br />

3D Graphics and Games Course

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