Examples: Add glTF compression example #21114
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This is how the scene looks like:
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donmccurdy
reviewed
Jan 20, 2021
coffeemat.glb is exported from the source Sketchfab scene using gltfpack with geometry compression via EXT_meshopt_compression and texture compression via KHR_texture_basisu (using ETC1S/BasisLZ). The source scene has 12 MB of geometry and 22 MB of texture data. The compressed scene has 2 MB of geometry and 2.6 MB of texture data.
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Replaced the scene with https://sketchfab.com/3d-models/coffeemat-7fb196a40a6e4697aad9ca2f75c8b33d:
The source scene has 12 MB of geometry and 22 MB of texture data. I've also squashed the commits to make sure the old .glb doesn't pollute the history. |
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Thanks! |
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I have simplified the example a bit: 067cf15 http://raw.githack.com/mrdoob/three.js/dev/examples/webgl_loader_gltf_compressed.html |
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ToyCar.glb is exported from glTF-Sample-Models using gltfpack with
geometry compression via EXT_meshopt_compression and texture compression
via KHR_texture_basisu (using UASTC+zstd since ETC1S creates very
visible reflection artefacts).
The resulting .glb file is 1.9 MB, compared to original 6.9 MB; in the
resulting file, geometry takes 0.6 MB and textures take 1.3 MB; this is
compared to the original 3.5 MB of geometry and 3.4 MB of textures.
Fixes #21111