What glb compessions (optimizers) can I find?

Supposing you start with a GLB:

# unpack the model into .gltf, .bin, and texture files in the tmp/ directory
mkdir tmp
gltf-pipeline -i input.glb -o tmp/tmp.gltf --separate --json

# optimize the textures in tmp/
# ...

# re-pack the model into a GLB, adding Draco compression
gltf-pipeline -i tmp/tmp.gltf -o optimized.glb --binary --draco

I’d suggest using GLB in general, it’s fewer network requests.

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