Hexels are planar hexagonal surface elements that the page says beat 2DGS on quality at matched memory, for 3D scenes, surfaces and 2D images.
What it is: Flat hexagonal patches whose color varies smoothly across each one, so fewer, larger primitives can cover a scene. The simplest version stores 20 numbers per Hexel.
Novel view synthesis: Across 34 scenes, the page reports PSNR 4.53 to 7.38 dB above memory-matched 2DGS, with lower training VRAM.
Surface reconstruction: On 15 DTU scans, error is 28.9% lower than memory-matched 2DGS. On 6 Tanks and Temples scenes, mean F-score is 34.38% versus 31.72% for 2DGS.
2D images: On the 45-image Image-GS benchmark, Hexels reach 35.82 dB against 33.16 dB for Image-GS, with 10,000 primitives per image.
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TL;DR of the article, generated automatically.
Hexels are planar hexagonal surface elements that the page says beat 2DGS on quality at matched memory, for 3D scenes, surfaces and 2D images.