Why glTF and GLB are the same format, and what Vectreal does with each

New explainer on the newsroom. The way I think about it now: glTF is the format, GLB is the way to zip it into one file. Both carry glTF 2.0 from the same Khronos spec. A

is a JSON scene plus a .bin plus texture files. A .glb packs all of that into a single file with a JSON chunk and a binary chunk.

For publishing to Vectreal specifically, it takes both. glTF with its separate files is the preferred input, with full material support. Drop the whole bundle (the .gltf root, its .bin, and textures) and the parser resolves the references. GLB uploads as the single file it is. OBJ works as a legacy path. USDZ support is partial right now, so textures and some material types may not render correctly, and I would not reach for it for the web yet.

One honest note: this is pre-1.0. There is no size limit at upload or preview, but a cap does apply when you save a published scene, and a genuinely large file (above roughly 500 MB) can slow the browser while it parses, regardless of format.

Full write-up: https://vectreal.com/news-room/gltf-vs-glb-what-actually-matters?utm_source=reddit&utm_medium=community&utm_campaign=gltf-vs-glb.gltf