Repository: sbtron/makeglb
Branch: master
Commit: 5f6bd77f0577
Files: 3
Total size: 10.5 KB
Directory structure:
gitextract_qa3qtzue/
├── LICENSE
├── README.md
└── index.html
================================================
FILE CONTENTS
================================================
================================================
FILE: LICENSE
================================================
MIT License
Copyright (c) 2017 Saurabh Bhatia
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
================================================
FILE: README.md
================================================
# makeglb
Convert glTF to glb
Drag and drop converter accepts a .gltf file and related geometry or textures and creates a self contained .glb
http://sbtron.github.io/makeglb
================================================
FILE: index.html
================================================
<html>
<head>
<Title>Make glb</Title>
<style>
.area {
width: 45em;
padding: 15px;
border: 1px solid #333;
background: rgba(0,0,0,0.7);
}
#drop_zone {
border: 2px dashed #bbb;
-webkit-border-radius: 5px;
border-radius: 5px;
padding: 50px;
text-align: center;
font: 21pt bold arial;
color: #bbb;
}
</style>
</head>
<body>
<div class="area">
<div id="drop_zone">Drop all files and folders for your glTF asset here</div>
</div>
<div id="download">
<a href="#" id="downloadLink"></a>
</div>
<div>
<ul id=list></ul></div>
<script>
var files=[];
var fileblobs=[];
var gltf;
var remainingfilestoprocess=0;
var glbfilename;
var outputBuffers;
var bufferMap;
var bufferOffset;
function handleDragOver(event) {
event.stopPropagation();
event.preventDefault();
event.dataTransfer.dropEffect = 'copy';
}
var dropZone = document.getElementById('drop_zone');
dropZone.addEventListener('dragover', handleDragOver, false);
dropZone.addEventListener('drop', handleFileSelect, false);
function addDownloadButton() {
var btn = document.createElement("button");
btn.id="downloadBtn";
btn.disabled=true;
btn.onclick= startDownload;
btn.appendChild(document.createTextNode("Processing..."));
document.getElementById("download").appendChild(btn);
}
function startDownload(){
document.getElementById("downloadLink").click();
}
function handleFileSelect(event) {
event.stopPropagation();
event.preventDefault();
document.getElementById('list').innerHTML="";
addDownloadButton();
var items = event.dataTransfer.items;
remainingfilestoprocess=items.length;
for (var i=0; i<items.length; i++) {
if (items[i].getAsEntry) {
var entry = items[i].getAsEntry();
} else if (items[i].webkitGetAsEntry) {
var entry = items[i].webkitGetAsEntry();
}
if (entry) {
traverseFileTree(entry);
}
}
}
function traverseFileTree(item, path) {
path = path || "";
if (item.isFile) {
item.file(function(file) {
files.push(file);
var fileitem = '<li><strong>'+ escape(file.name)+ '</strong> ('+ file.type + ') - '+
file.size+ ' bytes, last modified: '+ file.lastModifiedDate +
'</li>';
document.getElementById('list').innerHTML += fileitem;
var extension = file.name.split('.').pop();
if ( extension === "gltf")
{
glbfilename=file.name.substr(file.name.lastIndexOf('/')+1,file.name.lastIndexOf('.'));
var reader = new FileReader();
reader.readAsText(file);
reader.onload = function(event) {
gltf = JSON.parse(event.target.result);
checkRemaining();
};
}
else{
var reader = new FileReader();
reader.onload = (function(theFile) {
return function(e) {
fileblobs[theFile.name.toLowerCase()]=(e.target.result);
checkRemaining();
};
})(file);
reader.readAsArrayBuffer(file);
}
},function(error){
console.log(error);
});
} else if (item.isDirectory) {
var dirReader = item.createReader();
dirReader.readEntries(function(entries) {
remainingfilestoprocess+=entries.length;
checkRemaining();
for (var i=0; i<entries.length; i++) {
traverseFileTree(entries[i], path + item.name + "/");
}
});
}
}
function checkRemaining(){
remainingfilestoprocess--;
if(remainingfilestoprocess===0){
outputBuffers = [];
bufferMap = new Map();
bufferOffset = 0;
processBuffers().then(fileSave);
}
}
function processBuffers(){
var pendingBuffers = gltf.buffers.map(function (buffer, bufferIndex) {
return dataFromUri(buffer)
.then(function(data) {
if (data !== undefined) {
outputBuffers.push(data);
}
delete buffer.uri;
buffer.byteLength = data.byteLength;
bufferMap.set(bufferIndex, bufferOffset);
bufferOffset += alignedLength(data.byteLength);
});
});
return Promise.all(pendingBuffers)
.then(function() {
var bufferIndex = gltf.buffers.length;
var images = gltf.images || [];
var pendingImages = images.map(function (image) {
return dataFromUri(image).then(function(data) {
if (data === undefined) {
delete image['uri'];
return;
}
var bufferView = {
buffer: 0,
byteOffset: bufferOffset,
byteLength: data.byteLength,
};
bufferMap.set(bufferIndex, bufferOffset);
bufferIndex++;
bufferOffset += alignedLength(data.byteLength);
var bufferViewIndex = gltf.bufferViews.length;
gltf.bufferViews.push(bufferView);
outputBuffers.push(data);
image['bufferView'] = bufferViewIndex;
image['mimeType'] = getMimeType(image.uri);
delete image['uri'];
});
});
return Promise.all(pendingImages);
});
}
function fileSave(){
var Binary = {
Magic: 0x46546C67
};
for (var _i = 0, _a = gltf.bufferViews; _i < _a.length; _i++) {
var bufferView = _a[_i];
if(bufferView.byteOffset=== undefined){
bufferView.byteOffset=0;
}
else{
bufferView.byteOffset = bufferView.byteOffset + bufferMap.get(bufferView.buffer);
}
bufferView.buffer = 0;
}
var binBufferSize = bufferOffset;
gltf.buffers = [{
byteLength: binBufferSize
}];
var enc = new TextEncoder();
var jsonBuffer = enc.encode(JSON.stringify(gltf));
var jsonAlignedLength = alignedLength(jsonBuffer.length);
var padding;
if (jsonAlignedLength !== jsonBuffer.length) {
padding = jsonAlignedLength- jsonBuffer.length;
}
var totalSize = 12 + // file header: magic + version + length
8 + // json chunk header: json length + type
jsonAlignedLength +
8 + // bin chunk header: chunk length + type
binBufferSize;
var finalBuffer = new ArrayBuffer(totalSize);
var dataView = new DataView(finalBuffer);
var bufIndex = 0;
dataView.setUint32(bufIndex, Binary.Magic, true);
bufIndex += 4;
dataView.setUint32(bufIndex, 2, true);
bufIndex += 4;
dataView.setUint32(bufIndex, totalSize, true);
bufIndex += 4;
// JSON
dataView.setUint32(bufIndex, jsonAlignedLength, true);
bufIndex += 4;
dataView.setUint32(bufIndex, 0x4E4F534A, true);
bufIndex += 4;
for (var j=0;j<jsonBuffer.length;j++){
dataView.setUint8(bufIndex, jsonBuffer[j]);
bufIndex++;
}
if(padding!==undefined){
for (var j=0;j<padding;j++){
dataView.setUint8(bufIndex, 0x20);
bufIndex++;
}
}
// BIN
dataView.setUint32(bufIndex, binBufferSize, true);
bufIndex += 4;
dataView.setUint32(bufIndex, 0x004E4942, true);
bufIndex += 4;
for (var i = 0; i < outputBuffers.length; i++) {
var bufoffset = bufIndex + bufferMap.get(i);
var buf = new Uint8Array(outputBuffers[i]);
var thisbufindex=bufoffset;
for (var j=0;j<buf.byteLength;j++){
dataView.setUint8(thisbufindex, buf[j]);
thisbufindex++;
}
}
var a = document.getElementById("downloadLink");
var file = new Blob([finalBuffer],{type: 'model/json-binary'})
a.href = URL.createObjectURL(file);
a.download = glbfilename+".glb";
document.getElementById("downloadBtn").disabled=false;
document.getElementById("downloadBtn").textContent="Download .glb";
a.click();
}
function isBase64(uri) {
return uri.length < 5 ? false : uri.substr(0, 5) === "data:";
}
function decodeBase64(uri) {
return fetch(uri).then(function(response) { return response.arrayBuffer(); });
}
function dataFromUri(buffer) {
if (buffer.uri === undefined) {
return Promise.resolve(undefined);
} else if (isBase64(buffer.uri)) {
return decodeBase64(buffer.uri);
} else {
var filename=buffer.uri.substr(buffer.uri.lastIndexOf('/')+1);
return Promise.resolve(fileblobs[filename.toLowerCase()]);
}
}
function alignedLength(value) {
var alignValue = 4;
if (value == 0) {
return value;
}
var multiple = value % alignValue;
if (multiple === 0) {
return value;
}
return value + (alignValue - multiple);
}
function getMimeType(filename) {
for (var mimeType in gltfMimeTypes) {
for (var extensionIndex in gltfMimeTypes[mimeType]) {
var extension = gltfMimeTypes[mimeType][extensionIndex];
if (filename.toLowerCase().endsWith('.' + extension)) {
return mimeType;
}
}
}
return 'application/octet-stream';
}
var gltfMimeTypes = {
'image/png': ['png'],
'image/jpeg': ['jpg', 'jpeg'],
'text/plain': ['glsl', 'vert', 'vs', 'frag', 'fs', 'txt'],
'image/vnd-ms.dds': ['dds']
};
</script>
</body>
</html>
gitextract_qa3qtzue/ ├── LICENSE ├── README.md └── index.html
Condensed preview — 3 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (12K chars).
[
{
"path": "LICENSE",
"chars": 1071,
"preview": "MIT License\n\nCopyright (c) 2017 Saurabh Bhatia\n\nPermission is hereby granted, free of charge, to any person obtaining a "
},
{
"path": "README.md",
"chars": 176,
"preview": "# makeglb\nConvert glTF to glb\n\nDrag and drop converter accepts a .gltf file and related geometry or textures and creates"
},
{
"path": "index.html",
"chars": 9497,
"preview": "<html>\r\n <head>\r\n <Title>Make glb</Title>\r\n <style>\r\n .area {\r\n width: 45em;\r\n padding: 15px;\r\n border: 1px solid "
}
]
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