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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<script src="https://rawgit.com/Sphinxxxx/vanilla-picker/master/dist/vanilla-picker.min.js"></script>
<script async type="text/javascript" src="scripts/a.out.js"></script>
<!-- Import the modelviewer component -->
<script type="module" src="https://ajax.googleapis.com/ajax/libs/model-viewer/3.1.1/model-viewer.min.js"></script>
<style>
#dragAndDrop {
min-height: 200px;
white-space: pre;
border: 1px dashed black;
border-radius: 10px;
}
#picker {
cursor: pointer;
}
.picker_wrapper::before {
height: 0;
}
.picker_wrapper .picker_hue,
.picker_wrapper .picker_sl,
.picker_wrapper .picker_alpha,
.picker_wrapper .picker_sample {
outline: none;
box-shadow: 0 0 0 1px silver;
}
#upload-gltf {
left: 50px;
resize: both;
overflow: auto;
}
::-webkit-resizer{
border: 9px solid rgba(0,0,0,.1);
border-bottom-color: rgba(0,0,0,.5);
border-right-color: rgba(0,0,0,.5);
outline: 1px solid rgba(0,0,0,.2);
box-shadow: 0 0 5px 3px rgba(0,0,0,.1);
}
</style>
<script type="text/javascript">
`use strict`;
var worker = new Worker('scripts/workerReduction.js');
worker.onmessage = function(e) {
const file = e.data.blob;
if (file !== undefined) {
const s_name = SIMPLIFY_FILE.simplify_name;
file.name = s_name;
let url = window.URL.createObjectURL(file);
var download = document.getElementById('download');
download.href = url;
download.download = s_name;
var download_button = document.getElementById('download_button');
download_button.disabled = false;
download_button.innerHTML = "Click to Download " + s_name;
waitForReduction(file);
put_status("Ready to download");
return;
}
console.error("Unknown Message from WebWorker", e.data);
}
worker.onerror = function(e) {
console.log(e);
console.log(
'ERROR: Line ', e.lineno, ' in ', e.filename, ': ', e.message
);
}
let SIMPLIFY_FILE = {
'blob': undefined,
get name(){
if (this.exists)
return this.blob.name;
},
get simplify_name() {
if (this.exists)
return "simplify_"+this.name;
},
get size() {
if (this.exists)
return this.blob.size;
},
get exists() {
if (this.blob)
return true;
else {
return false;
}
}
}
let GLOBAL = {
color : [150, 150, 150, 1],
get color_str() {
return `rgba(${this.color[0]},
${this.color[1]},
${this.color[2]},
${this.color[3]})`;
},
get color_0to1() {
return [this.color[0]/255,
this.color[1]/255,
this.color[2]/255,
this.color[3]
];
},
stl_name: undefined
};
window.onload = function () {
// const init_color_str = GLOBAL.color_str;
// var picker_div = document.getElementById("picker");
// picker_div.style.backgroundColor = init_color_str;
// picker_div.style.color = init_color_str;
// var picker = new Picker(
// {
// parent: picker_div,
// alpha: false,
// color: init_color_str
// }
// );
// picker_div.onclick = function() {
// picker.show();
// };
// picker.onDone = function(color) {
// GLOBAL.color = color.rgba;
// picker_div.style.background = color.rgbaString;
// picker_div.style.color = color.rgbaString;
// download_glb();
// };
document.querySelector('#upload-gltf').src = '';
}
function uploaded(file) {
if (file === undefined) { // via upload button
var uploadform = document.getElementById("fileuploadform");
file = uploadform.files[0];
// this helps to force trigger even if user upload the same file
// https://stackoverflow.com/a/12102992/5260518
this.value = null;
}
// Reduction -->
if (file === undefined) // not via upload button defined otherwise
file = SIMPLIFY_FILE.blob;
var uploadform = document.getElementById("fileuploadform");
console.log(uploadform);
uploadform.files[0] = file;
SIMPLIFY_FILE.blob = file;
// const percentTo8MB = 0.99;
if (SIMPLIFY_FILE.size > 8*1024*1024) {
check_file_Reduction(post_to_worker);
}
else{
waitForReduction(file);
}
// <-- Reduction
}
function waitForReduction(file){
// now using reducted stl-file
check_file(file, function(){check_file_success()});
function check_file_success() {
put_status("Converting by your browser");
var filename = file.name;
var fr = new FileReader();
fr.readAsDataURL(file);
fr.onload = function (){
console.log(filename);
var stl_name = filename;
var data = atob(fr.result.split(",")[1]); // base64 to Uint8 for emscripten
Module['FS_createDataFile'](".", stl_name, data, true, true);
Module.ccall("make_bin", // c function name
undefined, // return
["string"], // param
[stl_name]
);
// Using a file to output data from c++ to js
// because if I use a pointer to array, if memory grow in wasm,
// this array will be in a different place
// then the pointer will be pointing to a wrong memory address
let out_data = Module['FS_readFile']('data.txt', { encoding: 'utf8'});
out_data = out_data.split(" ");
GLOBAL.number_indices = parseInt(out_data[0]);
GLOBAL.number_vertices = parseInt(out_data[1]);
GLOBAL.indices_blength = parseInt(out_data[2]);
GLOBAL.vertices_blength = parseInt(out_data[3]);
GLOBAL.total_blength = parseInt(out_data[4]);
GLOBAL.minx = parseFloat(out_data[5]);
GLOBAL.miny = parseFloat(out_data[6]);
GLOBAL.minz = parseFloat(out_data[7]);
GLOBAL.maxx = parseFloat(out_data[8]);
GLOBAL.maxy = parseFloat(out_data[9]);
GLOBAL.maxz = parseFloat(out_data[10]);
GLOBAL.stl_name = stl_name;
download_glb();
}
}
}
function gltf_dict(
total_blength, indices_blength, vertices_boffset, vertices_blength,
number_indices, number_vertices, minx, miny, minz, maxx, maxy, maxz,
color_r, color_g, color_b
) {
return {
"scenes" : [
{
"nodes" : [ 0 ]
}
],
"nodes" : [
{
"mesh" : 0,
"rotation": [-0.70710678119, 0.0, 0.0, 0.70710678119]
}
],
"meshes" : [
{
"primitives" : [ {
"attributes" : {
"POSITION" : 1
},
"indices" : 0,
"material" : 0
} ]
}
],
"buffers" : [
{
"byteLength" : total_blength
}
],
"bufferViews" : [
{
"buffer" : 0,
"byteOffset" : 0,
"byteLength" : indices_blength,
"target" : 34963
},
{
"buffer" : 0,
"byteOffset" : vertices_boffset,
"byteLength" : vertices_blength,
"target" : 34962
}
],
"accessors" : [
{
"bufferView" : 0,
"byteOffset" : 0,
"componentType" : 5125,
"count" : number_indices,
"type" : "SCALAR",
"max" : [ number_vertices - 1 ],
"min" : [ 0 ]
},
{
"bufferView" : 1,
"byteOffset" : 0,
"componentType" : 5126,
"count" : number_vertices,
"type" : "VEC3",
"min" : [minx, miny, minz],
"max" : [maxx, maxy, maxz]
}
],
"asset" : {
"version" : "2.0",
"generator": "STL2GLTF"
},
"materials": [
{
"pbrMetallicRoughness": {
"baseColorFactor": [
color_r,
color_g,
color_b,
1
],
"metallicFactor": 0,
"roughnessFactor": 0
}
}
],
} // end of dict
}
function download_glb() {
if (GLOBAL.stl_name === undefined) {
put_status("Please upload a file");
return;
} else {
}
const stl_name = GLOBAL.stl_name;
const color = GLOBAL.color_0to1;
const total_blength = GLOBAL.total_blength;
const indices_blength = GLOBAL.indices_blength;
const vertices_boffset = GLOBAL.indices_blength;
const vertices_blength = GLOBAL.vertices_blength;
const number_indices = GLOBAL.number_indices;
const number_vertices = GLOBAL.number_vertices;
const minx = GLOBAL.minx;
const miny = GLOBAL.miny;
const minz = GLOBAL.minz;
const maxx = GLOBAL.maxx;
const maxy = GLOBAL.maxy;
const maxz = GLOBAL.maxz;
const gltf_json = JSON.stringify(
gltf_dict(
total_blength, indices_blength, vertices_boffset, vertices_blength,
number_indices, number_vertices, minx, miny, minz, maxx, maxy, maxz,
color[0], color[1], color[2]
)
);
const out_bin_bytelength = total_blength;
const header_bytelength = 20;
const scene_len = gltf_json.length;
const padded_scene_len = ((scene_len+ 3) & ~3);
const body_offset = padded_scene_len + header_bytelength;
const file_no_bin_len = body_offset + 8;
const file_len = file_no_bin_len + out_bin_bytelength;
let glb = new Uint8Array(file_no_bin_len);
glb[0] = 0x67; // g
glb[1] = 0x6c; // l
glb[2] = 0x54; // t
glb[3] = 0x46; // f
glb[4] = ( 2 ) & 0xFF;
glb[5] = ( 2>>8 ) & 0xFF;
glb[6] = ( 2>>16 ) & 0xFF;
glb[7] = ( 2>>24 ) & 0xFF;
glb[8] = ( file_len ) & 0xFF;
glb[9] = ( file_len>>8 ) & 0xFF;
glb[10] = ( file_len>>16 ) & 0xFF;
glb[11] = ( file_len>>24 ) & 0xFF;
glb[12] = ( padded_scene_len ) & 0xFF;
glb[13] = ( padded_scene_len>>8 ) & 0xFF;
glb[14] = ( padded_scene_len>>16 ) & 0xFF;
glb[15] = ( padded_scene_len>>24 ) & 0xFF;
// JSON
glb[16] = 0x4A; // J
glb[17] = 0x53; // S
glb[18] = 0x4F; // O
glb[19] = 0x4E; // N
for (let i=0;i<gltf_json.length;i++) {
glb[i+header_bytelength] = gltf_json.charCodeAt(i);
}
for (let i=0;i<padded_scene_len - scene_len;i++) {
glb[i+scene_len+header_bytelength] = 0x20;
}
glb[body_offset ] = ( out_bin_bytelength ) & 0xFF;
glb[body_offset+1] = ( out_bin_bytelength>>8 ) & 0xFF;
glb[body_offset+2] = ( out_bin_bytelength>>16 ) & 0xFF;
glb[body_offset+3] = ( out_bin_bytelength>>24 ) & 0xFF;
glb[body_offset+4] = 0x42; // B
glb[body_offset+5] = 0x49; // I
glb[body_offset+6] = 0x4E; // N
glb[body_offset+7] = 0x00; //
let out_bin = Module['FS_readFile']('out.bin');
let blob = new Blob([glb, out_bin], {type: 'application/sla'});
let url = window.URL.createObjectURL(blob);
// var download_a = document.getElementById('download');
// download_a.href = url;
//document.querySelector('#upload-gltf').src = url;
// const glb_name = stl_name.slice(0,stl_name.length-4) + ".glb";
// download_a.download = glb_name;
// var download_button = document.getElementById('download_button');
// download_button.disabled = false;
// download_button.innerHTML = "Click to Download " + glb_name;
// download_button.click();
reductionURL = "";
if (blob.size < 3145728) {
put_status("Success, you can now view it in 3D!")
} else {
put_status("Your stl file is too large, the GLB file is bigger than 3 Mb, cannot share on facebook.")
}
}
function get_value_from_slider() {
return document.getElementById('slider').valueAsNumber;
}
function check_file(file, success_cb) {
put_status("Checking file");
success_cb();
}
function check_file_Reduction(success_cb) {
put_status("Checking file");
const filename = SIMPLIFY_FILE.name;
const extension = filename.toLowerCase().slice(filename.lastIndexOf(".")+1, filename.length);
if (extension!=="stl" && extension!=="obj") {
put_status("Please upload an stl or obj file not "+ extension);
return;
}
success_cb();
}
function post_to_worker() {
put_status("Simplifying by your browser...See log below");
// const percentTo8MB = 0.99;
// if (SIMPLIFY_FILE.exists && SIMPLIFY_FILE.size > 8*1024*1024) {
// // document.getElementById('size').innerHTML = Math.ceil(slider_value * SIMPLIFY_FILE.size/(100*1024*1024));
// percentTo8MB = 1- ((8*1024*1024)/SIMPLIFY_FILE.size);
// }
worker.postMessage(
{"blob":SIMPLIFY_FILE.blob,
//"percentage": get_value_from_slider()/100,
"percentage": (8*1024*1024)/SIMPLIFY_FILE.size,
"simplify_name": SIMPLIFY_FILE.simplify_name
}
);
}
function dodrop(event) {
var dt = event.dataTransfer;
var file = dt.files[0];
var filename = file.name;
put_status("Converting " + filename + " to GLB using WebAssembly.");
uploaded(file);
}
function put_status(text)
{
document.getElementById("status").textContent = text;
}
async function exportGLB(){
const modelViewer = document.getElementById("upload-gltf");
const glTF = await modelViewer.exportScene();
const file = new File([glTF], "export.glb");
const link = document.createElement("a");
link.download =file.name;
link.href = URL.createObjectURL(file);
link.click();
}
</script>
<body>
<h1>3D-View of STL-File</h1>
<div id="dragAndDrop"
ondragenter="event.stopPropagation(); event.preventDefault();"
ondragover="event.stopPropagation(); event.preventDefault();"
ondrop="event.stopPropagation(); event.preventDefault();
dodrop(event);">
<span>Drag and drop STL files here or <input type="file" onChange="uploaded()" id="fileuploadform"/></span>
<!-- <span></span>
<span>Click to change color -> <span id="picker">COLOR</span></span> -->
<span></span>
<span>Status: <span id="status">Waiting for upload</span>
</div>
<a id="download"><button id="download_button" disabled>Click to Download compressed stl</button></a>
<div>
<model-viewer id="upload-gltf" alt="3d-View of uploaded stl" src="blender-files/models/modelUV.glb" shadow-intensity="1" camera-controls touch-action="pan-y"></model-viewer>
<!-- <model-viewer id="upload-gltf" alt="3d-View of uploaded stl" src="#" shadow-intensity="1" camera-controls touch-action="pan-y"> -->
<div class="controls">
<div>
<p>Normals</p>
<select id="normals">
<option>None</option>
<option value="https://lschoenepxc.github.io/textures/texture-normal.jpg">Normal</option>
<option value="https://lschoenepxc.github.io/textures/Lantern_normal.png">Lantern Pole</option>
<option value="https://lschoenepxc.github.io/textures/gerillt-normal.jpg">Gerillt</option>
<option value="https://lschoenepxc.github.io/textures/PA12-normal.png">PA12</option>
<option value="https://lschoenepxc.github.io/textures/brick_normal_map.png">Brick Wall</option>
</select>
</div>
<div>
<p>Metalness: <span id="metalness-value"></span></p>
<input id="metalness" type="range" min="0" max="1" step="0.01" value="0">
</div>
<div>
<p>Roughness: <span id="roughness-value"></span></p>
<input id="roughness" type="range" min="0" max="1" step="0.01" value="0">
</div>
</div>
<div id="color-controls">
<button data-color="#969696">Grey</button>
<button data-color="#ff0000">Red</button>
<button data-color="#00ff00">Green</button>
<button data-color="#0000ff">Blue</button>
</div>
<!-- <p>Scale: <span id="texture-scale"></span></p>
<input type="range" min="0.5" max="1.5" value="1" step="0.01" id="scaleSlider"> -->
<button onclick="exportGLB()">Export GLB</button>
</model-viewer>
<script type="module">
const modelViewerTexture1 = document.querySelector("model-viewer#upload-gltf");
// const scaleSlider = document.querySelector('#scaleSlider');
document.querySelector('#color-controls').addEventListener('click', (event) => {
const colorString = event.target.dataset.color;
const [material] = modelViewerTexture1.model.materials;
material.pbrMetallicRoughness.setBaseColorFactor(colorString);
});
modelViewerTexture1.addEventListener("load", () => {
const material = modelViewerTexture1.model.materials[0];
let metalnessDisplay = document.querySelector("#metalness-value");
let roughnessDisplay = document.querySelector("#roughness-value");
metalnessDisplay.textContent = material.pbrMetallicRoughness.metallicFactor;
roughnessDisplay.textContent = material.pbrMetallicRoughness.roughnessFactor;
// Change color
// material.pbrMetallicRoughness.setBaseColorFactor([0.7294, 0.5333, 0.0392]);
document.querySelector('#metalness').addEventListener('input', (event) => {
material.pbrMetallicRoughness.setMetallicFactor(event.target.value);
metalnessDisplay.textContent = event.target.value;
});
document.querySelector('#roughness').addEventListener('input', (event) => {
material.pbrMetallicRoughness.setRoughnessFactor(event.target.value);
roughnessDisplay.textContent = event.target.value;
});
const createAndApplyTexture = async (channel, event) => {
if (event.target.value == "None") {
// Clears the texture.
material[channel].setTexture(null);
} else if (event.target.value) {
// Creates a new texture.
const texture = await modelViewerTexture1.createTexture(event.target.value);
// Applies the new texture to the specified channel.
if (channel.includes('base') || channel.includes('metallic')) {
material.pbrMetallicRoughness[channel].setTexture(texture);
}
else {
material[channel].setTexture(texture);
//material[channel].texture.source.setURI(event.options[event.selectedIndex].text);
// //sampler not working, when texture None
// const sampler = modelViewerTexture1.model.materials[0].normalTexture.texture.sampler;
// console.log(sampler);
// const scaleDisplay = document.querySelector('#texture-scale');
// scaleDisplay.textContent = scaleSlider.value;
// scaleSlider.addEventListener('input', (event) => {
// const scale = {
// x: scaleSlider.value,
// y: scaleSlider.value
// };
// sampler.setScale(scale);
// scaleDisplay.textContent = scale.x;
// });
}
}
}
document.querySelector('#normals').addEventListener('input', (event) => {
createAndApplyTexture('normalTexture', event);
});
});
</script>
</div>
</body>
</html>