mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-24 12:03:48 +01:00
173 lines
4.0 KiB
HTML
173 lines
4.0 KiB
HTML
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js webgl - materials - wireframe</title>
|
||
|
|
<meta charset="utf-8">
|
||
|
|
<style>
|
||
|
|
body {
|
||
|
|
margin: 0px;
|
||
|
|
background-color: #000000;
|
||
|
|
overflow: hidden;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<script src="../build/three.min.js"></script>
|
||
|
|
|
||
|
|
<script type="x-shader/x-vertex" id="vertexShader">
|
||
|
|
|
||
|
|
attribute vec3 center;
|
||
|
|
varying vec3 vCenter;
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
|
||
|
|
vCenter = center;
|
||
|
|
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<script type="x-shader/x-fragment" id="fragmentShader">
|
||
|
|
|
||
|
|
#extension GL_OES_standard_derivatives : enable
|
||
|
|
|
||
|
|
varying vec3 vCenter;
|
||
|
|
|
||
|
|
float edgeFactorTri() {
|
||
|
|
|
||
|
|
vec3 d = fwidth( vCenter.xyz );
|
||
|
|
vec3 a3 = smoothstep( vec3( 0.0 ), d * 1.5, vCenter.xyz );
|
||
|
|
return min( min( a3.x, a3.y ), a3.z );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
|
||
|
|
gl_FragColor.rgb = mix( vec3( 1.0 ), vec3( 0.2 ), edgeFactorTri() );
|
||
|
|
gl_FragColor.a = 1.0;
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
|
||
|
|
var camera, scene, renderer;
|
||
|
|
var meshTris, meshLines, meshMixed;
|
||
|
|
|
||
|
|
init();
|
||
|
|
animate();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
|
||
|
|
camera.position.z = 800;
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
|
||
|
|
var size = 150;
|
||
|
|
|
||
|
|
var geometryLines = new THREE.BoxGeometry( size, size, size );
|
||
|
|
var geometryTris = new THREE.BoxGeometry( size, size, size );
|
||
|
|
|
||
|
|
// wireframe using gl.LINES
|
||
|
|
|
||
|
|
var materialLines = new THREE.MeshBasicMaterial( { wireframe: true } );
|
||
|
|
|
||
|
|
meshLines = new THREE.Mesh( geometryLines, materialLines );
|
||
|
|
meshLines.position.x = -150;
|
||
|
|
scene.add( meshLines );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
var vertexShader = document.getElementById( 'vertexShader' ).textContent;
|
||
|
|
var fragmentShader = document.getElementById( 'fragmentShader' ).textContent;
|
||
|
|
|
||
|
|
// wireframe using gl.TRIANGLES (interpreted as triangles)
|
||
|
|
|
||
|
|
var attributesTris = { center: { type: 'v3', boundTo: 'faceVertices', value: [] } };
|
||
|
|
var valuesTris = attributesTris.center.value;
|
||
|
|
|
||
|
|
setupAttributes( geometryTris, valuesTris );
|
||
|
|
|
||
|
|
var materialTris = new THREE.ShaderMaterial( { uniforms: {}, attributes: attributesTris, vertexShader: vertexShader, fragmentShader: fragmentShader } );
|
||
|
|
|
||
|
|
meshTris = new THREE.Mesh( geometryTris, materialTris );
|
||
|
|
meshTris.position.x = 150;
|
||
|
|
scene.add( meshTris );
|
||
|
|
|
||
|
|
// wireframe using gl.TRIANGLES (mixed triangles and quads)
|
||
|
|
|
||
|
|
var mixedGeometry = new THREE.SphereGeometry( size / 2, 32, 16 );
|
||
|
|
|
||
|
|
var attributesMixed = { center: { type: 'v3', boundTo: 'faceVertices', value: [] } };
|
||
|
|
var valuesMixed = attributesMixed.center.value;
|
||
|
|
|
||
|
|
setupAttributes( mixedGeometry, valuesMixed );
|
||
|
|
|
||
|
|
var materialMixed = new THREE.ShaderMaterial( { uniforms: {}, attributes: attributesMixed, vertexShader: vertexShader, fragmentShader: fragmentShader } );
|
||
|
|
|
||
|
|
meshMixed = new THREE.Mesh( mixedGeometry, materialMixed );
|
||
|
|
meshMixed.position.x = -150;
|
||
|
|
scene.add( meshMixed );
|
||
|
|
|
||
|
|
|
||
|
|
// renderer
|
||
|
|
|
||
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
||
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
document.body.appendChild( renderer.domElement );
|
||
|
|
|
||
|
|
// events
|
||
|
|
|
||
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function setupAttributes( geometry, values ) {
|
||
|
|
|
||
|
|
for( var f = 0; f < geometry.faces.length; f ++ ) {
|
||
|
|
|
||
|
|
values[ f ] = [ new THREE.Vector3( 1, 0, 0 ), new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 1 ) ];
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onWindowResize() {
|
||
|
|
|
||
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function animate() {
|
||
|
|
|
||
|
|
requestAnimationFrame( animate );
|
||
|
|
|
||
|
|
meshLines.rotation.x += 0.005;
|
||
|
|
meshLines.rotation.y += 0.01;
|
||
|
|
|
||
|
|
meshTris.rotation.x += 0.005;
|
||
|
|
meshTris.rotation.y += 0.01;
|
||
|
|
|
||
|
|
if ( meshMixed ) {
|
||
|
|
|
||
|
|
meshMixed.rotation.x += 0.005;
|
||
|
|
meshMixed.rotation.y += 0.01;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|