Some text nodes are not visible after using draco compression

[TiagoCastilhos]

Some text nodes are not visible after using draco compression

[donmccurdy]

Hi @TiagoCastilhos! Draco (and many other compression methods) use a quantization grid as part of the compression process. Practically that means each vertex is snapped to an NxNxN grid, where N is 2^bits for some bit depth.

By default in glTF Transform that grid is per-mesh, so either of two things will avoid the issue:

1. Divide the text into smaller meshes, particularly separating the left and right dials
2. Use a higher precision grid

The second option is easier and seems to work well here:

gltf-transform draco original_oven.glb draco_compressed_oven_p16.glb --quantize-position 16

draco_compressed_oven_p16.glb.zip

[TiagoCastilhos]

@donmccurdy Thanks for the reply, I've just tested and it seems fine. Thank you so much!