Optimize GLB models and textures

Diagnose

Use gltf-report to diagnose your GLB models and textures.

npm install --global @gltf-transform/cli

Transform textures found in a GLB model to KTX2 format wit 5EA3 h gltf-transform:

gltf-transform uastc [INPUT] [OUTPUT]

Optimize the whole GLB and transform textures to KTX2 format with gltf-transform:

gltf-transform optimize [INPUT] [OUTPUT] --texture-compress ktx2

KTX Creation with toktx:

toktx --t2 --genmipmap --upper_left_maps_to_s0t0 public/images/cards_atlas.ktx2 public/images/cards_atlas.jpg

Encode and compress KTX2 texture to UASTC with ktxsc:

ktxsc --encode uastc  --zcmp 19 -o public/images/cards_atlas_uastc.ktx2  public/images/cards_atlas.ktx2

Use GLB Optimizer, an online tool leveraging glt-transform CLI to optimize GLB models without using the command line.

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