Very hacky implementation of octahedral impostors in three based on the great blog post by Ryan Brucks on impostors in Fortnite/Unreal Engine, building on the octahedron unwrapping code by SketchpunkLabs. The code is very much incomplete, the runtime shader barely useful I’d say, but it’s a start. If anyone is interested in pushing this along further, here’s the code.
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I love these impostors 
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