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How to create a bloom effect using OpenGL 2.0

This tutorial uses OpenGL 2.0 and shows how to use framebuffer objects to achieve a bloom effect.  (A bloom effect spreads out a light source so it brightens an image and gives it a “hazy” look ). A two-pass Gaussian filter is implemented. It also explains how to exploit hardware filtering to reduce the number of texture lookups.

Feb 20, 2007 | Read article... | Permalink

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