Screenshot from X:Rebirth showcasing the effect.

Vertex color lens flares

An article by Simon Schreibt on how to create lens flares using vertex colors rather than textures enabling them to be scaled infinitely with no loss in quality.

Read the article on Simon's website, here:
https://simonschreibt.de/gat/xrebirth-geometric-lensflares

There's a bunch of other really cool articles worth checking out on Simon's website as well.

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