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index-blackvoxel-lorentz.html
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index-blackvoxel-lorentz.html
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<!DOCTYPE html>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Isosurface Toolbox</title>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<script src="./src/three.js/three.min.js"></script>
<script src="./src/three.js/TrackballControls.js"></script>
<script src="./src/Detector.js"></script>
<script src="./src/Stats.js"></script>
<script src="./src/THREEx.screenshot.js"></script>
<script src="./src/THREEx.FullScreen.js"></script>
<script src="./src/THREEx.WindowResize.js"></script>
<script src="./src/threex.dragpancontrols.js"></script>
<script type="module" src="./src/customShaderLoader.grid.js"></script>
<!--Mesh algorithms-->
<script src="./src/marchingcubes.js"></script>
<script src="./src/marchingtetrahedra.js"></script>
<script src="./src/marchingtetrahedra2.js"></script>
<script src="./src/marchingtetrahedra3.js"></script>
<script src="./src/surfacenets.js"></script>
<script src="./src/perlinnoise.js"></script>
<script type="module" src="./src/testdata.js"></script>
<script src="./src/testelement.js"></script>
<link href="./src/main.css" rel="stylesheet">
</head>
<body>
<!-- three.js container -->
<div id="container"></div>
<!-- info on screen display -->
<div id="info">
<div class="top">
Isosurface Algorithm Tester
</div>
<div class="bottom" id="inlineDoc">
- <i><a href="https://www.github.com/d3x0r/IsoSurface-MultiTexture">https://www.github.com/d3x0r/IsoSurface-MultiTexture</a></i>
- <i>p</i> for screenshot
- <i>f</i> for fullscreen</div>
<div class="controls">
<p>Input Data:</p>
<p><select id="datasource"></select></p>
<p>Algorithm:</p>
<p><select id="mesher"></select></p>
<p>Show facets: <input type="checkbox" id="showfacets" value="checked"></p>
<p>Show edges: <input type="checkbox" id="showedges" value="checked"></p>
<p>Smooth Shade: <input type="checkbox" id="smoothShade" value="checked">
- Show Grid: <input type="checkbox" id="showGrid" value="checked">
- Sharpen Transition: <input type="checkbox" id="sharpenTransition" value="checked">
</p>
<p>Show Normal Texture: <input type="checkbox" id="showNormal" value="checked"></p>
<p>Resolution: <input type="text" id="resolution" value="0"> </p>
<p>Vertex count: <input type="text" id="vertcount" value="0"> </p>
<p>Face count: <input type="text" id="facecount" value="0"> </p>
<p>(Approx.) Time:<input type="text" id="meshtime" value="0"> </p>
<p><label>Inflation:<input type="range" id="inflation" value="50"></label> </p>
<p>Maximize: <input type="checkbox" id="maximize" value="checked"> - Midify: <input type="checkbox" id="midify" value="checked"> - Minimize: <input type="checkbox" id="minimize" value="checked"></p>
<p><label>Outside: <input type="radio" name="filler" id="fillOutside" value="checked"></label> <label>Inside: <input type="radio" name="filler" id="fillInside" value="checked"></label> - <label>Open: <input type="radio" name="filler" id="fillOpen" value="checked"></label></p>
<p><label>Enable Lorentz <input type="checkbox" id="chkLorentz" checked="checked"></label>
- <label> Enable Aberration <input type="checkbox" id="chkAberration" checked="checked"></label>
- <label>Enable Contraction <input type="checkbox" id="chkContract" checked="checked"></label><br>
<label>Lock Velocity <input type="checkbox" id="chkLockVelocity" checked="checked"></label>
- <label>Velocity 1<input type="range" id="sldVelocity1" value="50"></label>
- <label>Velocity 2<input type="range" id="sldVelocity2" value="50"></label>
<br>
- <label>X<input type="range" id="sldPosX" value="50"></label>
- <label>Y<input type="range" id="sldPosY" value="50"></label>
- <label>Z<input type="range" id="sldPosZ" value="50"></label>
</p>
</div>
</div>
<script type="module">
import {myPerspective} from './src/three.js/my_perspective.js'
import {MarchingTetrahedra4} from "./src/marchingtetrahedra4.js"
var stats, scene, renderer, composer;
var camera, camera2, cameraControls;
var geometry, surfacemesh, wiremesh;
var meshers = {
'Marching Tetraheda 4 (DCL-plane)' : MarchingTetrahedra4
, 'Marching Tetraheda 3 (DCL-plane)' : MarchingTetrahedra3
// , 'Marching Tetraheda 2 (DCL-cell)' : MarchingTetrahedra2
// , 'Marching Cubes': MarchingCubes
// , 'Marching Tetraheda' : MarchingTetrahedra
// , 'Naive Surface Nets': SurfaceNets
};
var testdata = {};
var testelements = {};
var material = null;
function updateMesh() {
scene.remove( surfacemesh );
scene.remove( wiremesh );
//Create surface mesh
if( document.getElementById( "showGrid").checked) {
var geometryHelper = THREE.GridGeometryBuffer();
geometry = geometryHelper.geometry;
}else {
geometry = new THREE.Geometry();
geometry.vertices.length = 0;
geometry.faces.length = 0;
}
var mesher = meshers[ document.getElementById("mesher").value ]
var field = testdata[ document.getElementById("datasource").value ]( document.getElementById("fillOutside").checked?-1
:document.getElementById("fillInside").checked?1
:0
)
var fieldElements = testelements[ document.getElementById("datasource").value ]( field, document.getElementById("fillOutside").checked?-1
:document.getElementById("fillInside").checked?1
:0 );
var start = (new Date()).getTime();
var inflatVal = document.getElementById( "inflation" ).value;
if( inflatVal < 50 )
inflatVal = ( 10/(60-inflatVal));
else
inflatVal = 1+( inflatVal - 50 ) / 5;
let maximize = document.getElementById( "maximize" ).checked;
let minimize = document.getElementById( "minimize" ).checked;
let midify = document.getElementById( "midify" ).checked;
let n = 0;
var newData = [];
for( var z = 0; z < field.dims[2]; z++ ) {
for( var y = 0; y < field.dims[1]; y++ ) {
for( var x = 0; x < field.dims[0]; x++ ) {
var a = field.data[n];
if( a > 0 ) {
if( midify ) {
newData.push( 1.0 );
} else if( minimize ) {
newData.push( 500 );
}
else if( maximize ) {
newData.push( 0.0000001 );
}
else {
newData.push( a * inflatVal );
}
}else {
if( midify ) {
newData.push( -1.0 );
}
else
newData.push( a );
}
n++;
}
}
}
var opts;
var result = mesher( newData, field.dims, opts = {
elements : fieldElements,
minimize : document.getElementById( "minimize" ).checked,
maximize : document.getElementById( "maximize" ).checked,
inflation : inflatVal,
vertices : geometry.vertices,
faces : geometry.faces,
smoothShade : document.getElementById( "smoothShade" ).checked,
showGrid : document.getElementById( "showGrid").checked,
geometryHelper : geometryHelper,
} );
var end = (new Date()).getTime();
//Update statistics
document.getElementById("resolution").value = field.dims[0] + 'x' + field.dims[1] + 'x' + field.dims[2];
if( result ){
document.getElementById("vertcount").value = result.vertices.length;
document.getElementById("facecount").value = result.faces.length;
if( opts.showGrid ) {
for(var i=0; i<result.vertices.length; ++i) {
geometryHelper.addPoint( result.vertices[i]
, null, null // texture, and uv[1,0]
, [0xA0,0x00,0xA0,255] // edge color
, [0x11, 0x11, 0x11, 255] // face color
, [0,0,0] // normal *needs to be updated*;
, 100 // pow
, false // use texture
, false // flat
, false // decal texture?
, [result.vertices[i][0]+0.125,result.vertices[i][1]+0.125,result.vertices[i][2]+0.125] // modulous of this point.
);
}
const cb = new THREE.Vector3(), ab = new THREE.Vector3();
for(var i=0; i<result.faces.length; ++i) {
const f = result.faces[i];
const vA = result.vertices[f[0]];
const vB = result.vertices[f[1]];
const vC = result.vertices[f[2]];
let norm=[0,0,0];
let tmp=[0,0,0];
//if( !vA || !vB || !vC ) debugger;
norm[0] = vC[0]-vB[0];norm[1] = vC[1]-vB[1];norm[2] = vC[2]-vB[2];
tmp[0] = vA[0]-vB[0];tmp[1] = vA[1]-vB[1];tmp[2] = vA[2]-vB[2];
let a=norm[0],b=norm[1],c=norm[2];
norm[0]=norm[1]*tmp[2] - norm[2]*tmp[1];
norm[1]=norm[2]*tmp[0] - a *tmp[2];
norm[2]=a *tmp[1] - b *tmp[0];
let ds;
if( (ds=norm[0]*norm[0]+norm[1]*norm[1]+norm[2]*norm[2]) < 0.01 ){
norm[0] = vB[0]-vA[0];norm[1] = vB[1]-vA[1];norm[2] = vB[2]-vA[2];
tmp[0] = vC[0]-vA[0];tmp[1] = vC[1]-vA[1];tmp[2] = vC[2]-vA[2];
let a=norm[0],b=norm[1],c=norm[2];
norm[0]=norm[1]*tmp[2] - norm[2]*tmp[1];
norm[1]=norm[2]*tmp[0] - a*tmp[2];
norm[2]=a *tmp[1] - b*tmp[0];
ds=norm[0]*norm[0]+norm[1]*norm[1]+norm[2]*norm[2];
}
norm[0] *= 1/Math.sqrt(ds);norm[1] *= 1/Math.sqrt(ds);norm[2] *= 1/Math.sqrt(ds);
geometryHelper.addFace( f[0], f[1],f[2], norm);
}
geometryHelper.markDirty();
document.getElementById("vertcount").value = geometryHelper.used;
document.getElementById("facecount").value = geometryHelper.usedFaces/3;
} else {
document.getElementById("vertcount").value = result.vertices.length;
document.getElementById("facecount").value = result.faces.length;
for(var i=0; i<result.vertices.length; ++i) {
var v = result.vertices[i];
geometry.vertices.push(new THREE.Vector3(v[0], v[1], v[2]));
}
for(var i=0; i<result.faces.length; ++i) {
var f = result.faces[i];
if(f.length === 3) {
geometry.faces.push(new THREE.Face3(f[0], f[1], f[2]));
} else if(f.length === 4) {
geometry.faces.push(new THREE.Face4(f[0], f[1], f[2], f[3]));
} else {
//Polygon needs to be subdivided
}
}
var cb = new THREE.Vector3(), ab = new THREE.Vector3();
for (var i=0; i<geometry.faces.length; ++i) {
var f = geometry.faces[i];
var vA = geometry.vertices[f.a];
var vB = geometry.vertices[f.b];
var vC = geometry.vertices[f.c];
cb.subVectors(vC, vB);
ab.subVectors(vA, vB);
cb.cross(ab);
cb.normalize();
if (geometry.faces[i].length == 3) {
continue;
}
if( cb.length() < 0.001 ){
cb.subVectors(vB, vA);
ab.subVectors(vC, vA);
cb.cross(ab);
cb.normalize();
if (geometry.faces[i].length == 3) {
continue;
}
}
// quad
if (f.d /*cb.isZero()*/) {
// broken normal in the first triangle, let's use the second triangle
var vA = geometry.vertices[f.a];
var vB = geometry.vertices[f.c];
var vC = geometry.vertices[f.d];
//if( !vA || !vB || !vC ) debugger;
cb.subVectors(vC, vB);
ab.subVectors(vA, vB);
cb.cross(ab);
cb.normalize();
}
f.normal.copy(cb);
}
}
}else{
if( !opts.showGrid ) {
document.getElementById("vertcount").value = geometry.vertices.length;
document.getElementById("facecount").value = geometry.faces.length;
}
else {
document.getElementById("vertcount").value = geometryHelper.used;
document.getElementById("facecount").value = geometryHelper.usedFaces/3;
}
/*
if( opts.smoothShade ){
for (var i=0; i<geometry.faces.length; ++i) {
// this is a lot of redundant work...
geometry.faces[i].vertexNormals[0].normalize();
geometry.faces[i].vertexNormals[1].normalize();
geometry.faces[i].vertexNormals[2].normalize();
}
}
*/
}
document.getElementById("meshtime").value = (end - start) / 1000.0;
geometry.verticesNeedUpdate = true;
geometry.elementsNeedUpdate = true;
geometry.normalsNeedUpdate = true;
geometry.computeBoundingBox();
geometry.computeBoundingSphere();
if( document.getElementById( "showNormal" ).checked && !document.getElementById("showGrid").checked ) {
material = new THREE.MeshNormalMaterial();
surfacemesh = new THREE.Mesh( geometry, material );
surfacemesh.doubleSided = true;
}
else {
if( document.getElementById("showGrid").checked )
{
material = THREE.GridGeometryMaterial();
material.uniforms.enableLorentz.value = chkLorentz.checked?1:0;
material.uniforms.enableAberration.value = chkAberration.checked?1:0;
material.uniforms.enableContract.value = chkContract.checked?1:0;
material.uniforms.opos.value.x = (Number( sldPosX.value )-50)/2;
material.uniforms.opos.value.y = (Number( sldPosY.value )-50)/2;
material.uniforms.opos.value.z = (Number( sldPosZ.value )-50)/2;
if( chkLockVelocity.checked ) {
material.uniforms.velocity1.value.x = Number( sldVelocity1.value )/100;
material.uniforms.velocity2.value.x = Number( sldVelocity1.value )/100;
} else {
material.uniforms.velocity1.value.x = Number( sldVelocity1.value )/100;
material.uniforms.velocity2.value.x = Number( sldVelocity2.value )/100;
}
material.uniforms.textureMap3.value = window.ttCommon.stack.smudge();
material.uniforms.cursorIconTex.value = window.ttCommon.cursorIcon;
material.defines.CALCULATE_COSINE_MERGE = document.getElementById( "sharpenTransition" ).checked?1:0;
material.uniforms.cursorIconUp.value.set( 0, 0, 1 ); // this should update to the camera up
surfacemesh = new THREE.Mesh( geometry, material );
//cluster.THREE_solid.add( sector.THREE_solid = new THREE.Mesh( sector.solid_geometry.geometry, geometryShader ) );
}else {
material = new THREE.MeshPhongMaterial({
color:0x700070
});
surfacemesh = new THREE.Mesh( geometry, material );
surfacemesh.doubleSided = true;
}
}
var wirematerial = new THREE.MeshBasicMaterial({
color : 0xffffff
, wireframe : true
});
wiremesh = new THREE.Mesh(geometry, wirematerial);
wiremesh.doubleSided = true;
scene.add( surfacemesh );
scene.add( wiremesh );
var bb = geometry.boundingBox;
wiremesh.position.x = surfacemesh.position.x = -(bb.max.x + bb.min.x) / 2.0;
wiremesh.position.y = surfacemesh.position.y = -(bb.max.y + bb.min.y) / 2.0;
wiremesh.position.z = surfacemesh.position.z = -(bb.max.z + bb.min.z) / 2.0;
}
window.doInit = ()=>{
if( !init() ) animate();
}
// init the scene
function init(){
var canvas = document.createElement( 'canvas' );
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var context = canvas.getContext( 'webgl2', { alpha: false, antialias: true } );
if( Detector.webgl ){
renderer = new THREE.WebGLRenderer({
canvas: canvas, context: context,
antialias : true, // to get smoother output
preserveDrawingBuffer : true // to allow screenshot
});
//console.log( "YES?", renderer );
renderer.setClearColor( 0xBBBBBB, 1 );
}else{
renderer = new THREE.WebGLRenderer({
canvas: canvas, context: context,
canvas : undefined,
context : undefined,
});
}
canvas.addEventListener( "mousemove", (evt)=>{
if( material.uniforms && material.uniforms.cursorRayNormal ) {
var pRect = canvas.getBoundingClientRect();
var x = evt.clientX - pRect.left;
var y = evt.clientY - pRect.top;
var x = ( (evt.x - pRect.left) / pRect.width ) * 2.0 - 1.0;
var y = ( (evt.y - pRect.top) / pRect.height ) * 2.0 - 1.0;
x = -x;
y = y;
var v = new THREE.Vector3( 0, 0, -1 );
v.unproject( camera );
var rc = new THREE.Raycaster();
rc.setFromCamera( new THREE.Vector2( x, y ), camera );
material.uniforms.cursorRayNormal.value.set( -x, -y, (pRect.width/2350)*camera.aspect ) ;
}
} );
renderer.setSize( window.innerWidth, window.innerHeight );
document.getElementById('container').appendChild(canvas);
// add Stats.js - https://github.com/mrdoob/stats.js
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.bottom = '0px';
document.body.appendChild( stats.domElement );
// create a scene
scene = new THREE.Scene();
// put a camera in the scene
camera = new THREE.PerspectiveCamera(12, window.innerWidth / window.innerHeight, 1, 10000 );
camera2 = new THREE.OrthographicCamera(-5,5,-5,5,-100,100 );
camera2.autoUpdateMatrix = false;
//myPerspective( camera.projectionMatrix, 90, window.innerWidth / window.innerHeight, 0.01, 10000 );
camera.position.set(0, 0, 40);
scene.add(camera);
scene.add(camera2);
// create a camera contol
cameraControls = new THREE.TrackballControls( camera, document.getElementById('container') )
// transparently support window resize
THREEx.WindowResize.bind(renderer, camera);
// allow 'p' to make screenshot
THREEx.Screenshot.bindKey(renderer);
// allow 'f' to go fullscreen where this feature is supported
if( THREEx.FullScreen.available() ){
THREEx.FullScreen.bindKey();
document.getElementById('inlineDoc').innerHTML += "- <i>f</i> for fullscreen";
}
// here you add your objects
// - you will most likely replace this part by your own
var light = new THREE.AmbientLight( 0.8 * 0xffffff );
scene.add( light );
var light = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light.position.multiplyScalar(40);
scene.add( light );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = -light2.position.z;
light2.position.y = -light2.position.y;
light2.position.x = -light2.position.x;
scene.add( light2 );
/*
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = 40;
light2.position.y = 0;
light2.position.x = 0;
scene.add( light2 );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = 0;
light2.position.y = 40;
light2.position.x = 0;
scene.add( light2 );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = 0;
light2.position.y = 0;
light2.position.x = 40;
scene.add( light2 );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = -40;
light2.position.y = 0;
light2.position.x = 0;
scene.add( light2 );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = 0;
light2.position.y = -40;
light2.position.x = 0;
scene.add( light2 );
var light2 = new THREE.PointLight( 0.8 * 0xffffff );
//light.position.set( Math.random(), Math.random(), Math.random() ).normalize();
light2.position.copy( light.position );
light2.position.z = 0;
light2.position.y = 0;
light2.position.x = -40;
scene.add( light2 );
*/
//Initialize dom elements
testdata = window.createTestData(0);
testelements = createTestElementData();
var ds = document.getElementById("datasource");
for(var id in testdata) {
ds.add(new Option(id, id), null);
}
ds.onchange = updateMesh;
var ms = document.getElementById("mesher");
for(var alg in meshers) {
ms.add(new Option(alg, alg), null);
}
ms.onchange = updateMesh;
document.getElementById("showfacets").checked = true;
document.getElementById("showedges").checked = false;
var is;
if( sldPosX ) sldPosX.oninput = updateMesh;
if( sldPosY ) sldPosY.oninput = updateMesh;
if( sldPosZ ) sldPosZ.oninput = updateMesh;
if( sldVelocity1 ) sldVelocity1.oninput = updateMesh;
if( sldVelocity2 ) sldVelocity2.oninput = updateMesh;
if( chkLockVelocity ) chkLockVelocity.oninput = updateMesh;
if( chkLorentz ) chkLorentz.oninput = updateMesh;
if( chkContract ) chkContract.oninput = updateMesh;
if( chkAberration ) chkAberration.oninput = updateMesh;
is = document.getElementById( "inflation" );
is.oninput = updateMesh;
is = document.getElementById( "minimize" );
is.onchange = updateMesh;
is = document.getElementById( "maximize" );
is.onchange = updateMesh;
is = document.getElementById( "midify" );
is.onchange = updateMesh;
is = document.getElementById( "smoothShade" );
is.onchange = updateMesh;
is.checked = true;
is = document.getElementById( "showNormal" );
is.checked = true;
is.onchange = updateMesh;
is = document.getElementById( "showGrid" );
is.onchange = updateMesh;
is.checked = true;
is = document.getElementById( "sharpenTransition" );
is.onchange = updateMesh;
is.checked = true;
is = document.getElementById( "fillOutside" );
is.onchange = updateTestData;
is = document.getElementById( "fillInside" );
is.onchange = updateTestData;
is = document.getElementById( "fillOpen" );
is.onchange = updateTestData;
is.checked = true;
function updateTestData() {
testdata = window.createTestData( document.getElementById("fillOutside").checked?-1
:document.getElementById("fillInside").checked?1
:0);
testelements = createTestElementData( );
updateMesh();
}
//Update mesh
updateMesh();
return false;
}
// animation loop
function animate() {
// loop on request animation loop
// - it has to be at the begining of the function
// - see details at http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
requestAnimationFrame( animate );
// do the render
render();
// update stats
stats.update();
}
// render the scene
function render() {
// variable which is increase by Math.PI every seconds - usefull for animation
var PIseconds = Date.now() * Math.PI;
// update camera controls
cameraControls.update();
if( material.uniforms && material.uniforms.cursorIconUp ) {
material.uniforms.cursorIconUp.value.copy( camera.up ); // this should update to the camera up
material.uniforms.cursorRayOrigin.value.copy( camera.position ); // this should update to the camera up
}
surfacemesh.visible = document.getElementById("showfacets").checked;
wiremesh.visible = document.getElementById("showedges").checked;
/*
// actually render the scene
camera.updateMatrixWorld(true);
camera2.matrix.copy( camera.matrix );
camera2.matrixWorld.copy( camera.matrixWorld );
{
var d = new THREE.Vector3(),
q = new THREE.Quaternion(),
s = new THREE.Vector3();
camera2.matrixWorld.decompose( d, q, s );
camera2.position.copy( d );
camera2.quaternion.copy( q );
camera2.scale.copy( s );
}
*/
renderer.render( scene, camera );
}
</script>
</body></html>