GLTFExporter: Add support for KHR_mesh_quantization. #20474
Description
In the past, my model was compressed with draco, and it was displayed on the web page normally, and it was also normal to export the file with GLTFExporter. However, due to the draco compressed model, the decompression speed is relatively slow, and the display is no problem if it is changed to GLTFPACK compression. But when I want to export the page, I am prompted that the bufferAttribute component type is not supported.
var loader = new THREE.GLTFLoader();
loader.setMeshoptDecoder(MeshoptDecoder);
loader.load(model_path, function(gltf) {
theModel = gltf.scene;
theModel.position.y = -1.2;
modelg.add(theModel);
});
var urlsave = ‘http://192.168.101.113:8080/customProduct/saveCustomProduct’;
var qhxhr = new XMLHttpRequest();
qhxhr.open(‘POST’, urlsave, true);
var blobfile = null;
var fdata = new FormData();
var btnsave = document.getElementById(‘savejm’);
btnsave.addEventListener(‘click’, saves);
function saves() {
var exporter3D = new THREE.GLTFExporter();
exporter3D.parse(modelg, function(glbfile) {
if (glbfile instanceof ArrayBuffer) {
saveArrayBuffer(glbfile, ‘customize1.glb’);
} else {
var scenejson = JSON.stringify(glbfile, null, 2);
saveString(scenejson, ‘customize.glb’);
};
}, binary = true, onlyVisible = true );
};
function saveString(text, filename) {
save(new Blob([text], {
type: 'text/plain'
}), filename);
};
function saveArrayBuffer(buffer, filename) {
save(new Blob([buffer], {
type: ‘application/octet-stream’
}), filename);
};
function save(blob, filename) {
fdata.append(‘file’, blob, ‘customize.glb’);
qhxhr.upload.addEventListener(“progress”, function(result) {
if (result.lengthComputable) {
var percent = (result.loaded / result.total * 100).toFixed(2);
console.log(percent);
}
}, false);
qhxhr.send(fdata);
console.log(“ff”);
};Hope to support bufferAttribute component type in GLTFExporter.
