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提交 155fca7b 编写于 作者: Z zz85
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ExtrudeGeometry using TubeGeometry internally for TNB frames. Added... 

ExtrudeGeometry using TubeGeometry internally for TNB frames. Added webgl_geometry_extrudePath.html to test ExtrudeGeometry
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examples/webgl_geometry_extrudePath.html 0 → 100644
浏览文件 @ 155fca7b
<!doctype html>
<html lang="en">
<head>
<title>three.js webgl - geometry - extrude splines</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
</style>
</head>
<body>
<canvas id="debug" style="position:absolute; left:100px"></canvas>
<script src="../build/Three.js"></script>
<script src="../src/extras/core/Curve.js"></script>
<script src="../src/extras/geometries/TubeGeometry.js"></script>
<script src="../src/extras/geometries/ExtrudeGeometry.js"></script>
<script src="js/Stats.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var text, plane;
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
var info = document.createElement( 'div' );
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = 'Simple procedurally generated 3D shapes example by <a href="http://www.lab4games.net/zz85/blog">zz85</a><br/>Drag to spin';
container.appendChild( info );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set( 0, 150, 500 );
scene.add( camera );
var light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 0, 1 );
scene.add( light );
parent = new THREE.Object3D();
parent.position.y = 50;
scene.add( parent );
function addGeometry( geometry, points, spacedPoints, color, x, y, z, rx, ry, rz, s ) {
// 3d shape
var mesh = THREE.SceneUtils.createMultiMaterialObject( geometry, [ new THREE.MeshLambertMaterial( { color: color } ), new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, transparent: true } ) ] );
mesh.position.set( x, y, z - 75 );
mesh.rotation.set( rx, ry, rz );
mesh.scale.set( s, s, s );
parent.add( mesh );
// solid line
var line = new THREE.Line( points, new THREE.LineBasicMaterial( { color: color, linewidth: 2 } ) );
line.position.set( x, y, z + 25 );
line.rotation.set( rx, ry, rz );
line.scale.set( s, s, s );
parent.add( line );
// transparent line from real points
var line = new THREE.Line( points, new THREE.LineBasicMaterial( { color: color, opacity: 0.5 } ) );
line.position.set( x, y, z + 75 );
line.rotation.set( rx, ry, rz );
line.scale.set( s, s, s );
parent.add( line );
// vertices from real points
var pgeo = THREE.GeometryUtils.clone( points );
var particles = new THREE.ParticleSystem( pgeo, new THREE.ParticleBasicMaterial( { color: color, size: 2, opacity: 0.75 } ) );
particles.position.set( x, y, z + 75 );
particles.rotation.set( rx, ry, rz );
particles.scale.set( s, s, s );
parent.add( particles );
// transparent line from equidistance sampled points
var line = new THREE.Line( spacedPoints, new THREE.LineBasicMaterial( { color: color, opacity: 0.2 } ) );
line.position.set( x, y, z + 100 );
line.rotation.set( rx, ry, rz );
line.scale.set( s, s, s );
parent.add( line );
// equidistance sampled points
var pgeo = THREE.GeometryUtils.clone( spacedPoints );
var particles2 = new THREE.ParticleSystem( pgeo, new THREE.ParticleBasicMaterial( { color: color, size: 2, opacity: 0.5 } ) );
particles2.position.set( x, y, z + 100 );
particles2.rotation.set( rx, ry, rz );
particles2.scale.set( s, s, s );
parent.add( particles2 );
}
var extrudeSettings = { amount: 200, bevelEnabled: true, bevelSegments: 2, steps: 150 }; // bevelSegments: 2, steps: 2 , bevelSegments: 5, bevelSize: 8, bevelThickness:5,
// var extrudePath = new THREE.Path();
// extrudePath.moveTo( 0, 0 );
// extrudePath.lineTo( 10, 10 );
// extrudePath.quadraticCurveTo( 80, 60, 160, 10 );
// extrudePath.quadraticCurveTo( 240, -40, 320, 10 );
extrudeSettings.bevelEnabled = false;
var extrudeBend = new THREE.SplineCurve3( //Closed
[
new THREE.Vector3( 30, 12, 83),
new THREE.Vector3( 40, 20, 67),
new THREE.Vector3( 60, 40, 99),
new THREE.Vector3( 10, 60, 49),
new THREE.Vector3( 25, 80, 40)
// new THREE.Vector3( 0, 12, 83),
// new THREE.Vector3( 0, 20, 67),
// new THREE.Vector3( 0, 40, 99),
// new THREE.Vector3( 0, 60, 49),
// new THREE.Vector3( 0, 80, 40)
// new THREE.Vector3( 12, 83, 0 ),
// new THREE.Vector3( 20, 67, 0 ),
// new THREE.Vector3( 40, 99, 0 ),
// new THREE.Vector3( 60, 49, 0 ),
// new THREE.Vector3( 80, 40, 0 )
]);
var pipeSpline = new THREE.SplineCurve3([
new THREE.Vector3(0, 10, -10), new THREE.Vector3(10, 0, -10), new THREE.Vector3(20, 0, 0), new THREE.Vector3(30, 0, 10), new THREE.Vector3(30, 0, 20), new THREE.Vector3(20, 0, 30), new THREE.Vector3(10, 0, 30), new THREE.Vector3(0, 0, 30), new THREE.Vector3(-10, 10, 30), new THREE.Vector3(-10, 20, 30), new THREE.Vector3(0, 30, 30), new THREE.Vector3(10, 30, 30), new THREE.Vector3(20, 30, 15), new THREE.Vector3(10, 30, 10), new THREE.Vector3(0, 30, 10), new THREE.Vector3(-10, 20, 10), new THREE.Vector3(-10, 10, 10), new THREE.Vector3(0, 0, 10), new THREE.Vector3(10, -10, 10), new THREE.Vector3(20, -15, 10), new THREE.Vector3(30, -15, 10), new THREE.Vector3(40, -15, 10), new THREE.Vector3(50, -15, 10), new THREE.Vector3(60, 0, 10), new THREE.Vector3(70, 0, 0), new THREE.Vector3(80, 0, 0), new THREE.Vector3(90, 0, 0), new THREE.Vector3(100, 0, 0)]);
var sampleClosedSpline = new THREE.ClosedSplineCurve3([
new THREE.Vector3(0, -40, -40),
new THREE.Vector3(0, 40, -40),
new THREE.Vector3(0, 140, -40),
new THREE.Vector3(0, 40, 40),
new THREE.Vector3(0, -40, 40),
]);
var randomPoints = [];
for (var i=0; i<10;i++) {
randomPoints.push(
new THREE.Vector3(Math.random() * 200,Math.random() * 200,Math.random() * 200 )
);
}
var randomSpline = new THREE.SplineCurve3(randomPoints);
extrudeSettings.extrudePath = randomSpline; // extrudeBend sampleClosedSpline pipeSpline
// Circle
var circleRadius = 4;
var circleShape = new THREE.Shape();
circleShape.moveTo( 0, circleRadius );
circleShape.quadraticCurveTo( circleRadius, circleRadius, circleRadius, 0 );
circleShape.quadraticCurveTo( circleRadius, -circleRadius, 0, -circleRadius );
circleShape.quadraticCurveTo( -circleRadius, -circleRadius, -circleRadius, 0 );
circleShape.quadraticCurveTo( -circleRadius, circleRadius, 0, circleRadius);
var rectLength = 12, rectWidth = 4;
var rectShape = new THREE.Shape();
// rectShape.moveTo( 0,0 );
// rectShape.lineTo( 0, rectWidth );
// rectShape.lineTo( rectLength, rectWidth );
// rectShape.lineTo( rectLength, 0 );
// rectShape.lineTo( 0, 0 );
rectShape.moveTo( -rectLength/2, -rectWidth/2 );
rectShape.lineTo( -rectLength/2, rectWidth/2 );
rectShape.lineTo( rectLength/2, rectWidth/2 );
rectShape.lineTo( rectLength/2, -rectLength/2 );
rectShape.lineTo( -rectLength/2, -rectLength/2 );
// Smiley
var smileyShape = new THREE.Shape();
smileyShape.moveTo( 80, 40 );
smileyShape.arc( 40, 40, 40, 0, Math.PI*2, false );
var smileyEye1Path = new THREE.Path();
smileyEye1Path.moveTo( 35, 20 );
smileyEye1Path.arc( 25, 20, 10, 0, Math.PI*2, true );
smileyShape.holes.push( smileyEye1Path );
var smileyEye2Path = new THREE.Path();
smileyEye2Path.moveTo( 65, 20 );
smileyEye2Path.arc( 55, 20, 10, 0, Math.PI*2, true );
smileyShape.holes.push( smileyEye2Path );
var smileyMouthPath = new THREE.Path();
// ugly box mouth
// smileyMouthPath.moveTo( 20, 40 );
// smileyMouthPath.lineTo( 60, 40 );
// smileyMouthPath.lineTo( 60, 60 );
// smileyMouthPath.lineTo( 20, 60 );
// smileyMouthPath.lineTo( 20, 40 );
smileyMouthPath.moveTo( 20, 40 );
smileyMouthPath.quadraticCurveTo( 40, 60, 60, 40 );
smileyMouthPath.bezierCurveTo( 70, 45, 70, 50, 60, 60 );
smileyMouthPath.quadraticCurveTo( 40, 80, 20, 60 );
smileyMouthPath.quadraticCurveTo( 5, 50, 20, 40 );
smileyShape.holes.push( smileyMouthPath );
var circle3d = rectShape.extrude( extrudeSettings ); //circleShape rectShape smileyShape
// var circle3d = new THREE.ExtrudeGeometry(circleShape, extrudeBend, extrudeSettings );
var circlePoints = circleShape.createPointsGeometry();
var circleSpacedPoints = circleShape.createSpacedPointsGeometry();
addGeometry( circle3d, circlePoints, circleSpacedPoints, 0x00ff11, 0, 0, 0, 0, 0, 0, 1 );
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
}
//
function onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
}
function onDocumentMouseUp( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length == 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length == 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
}
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
renderer.render( scene, camera );
}
</script>
</body>
</html>
\ No newline at end of file
src/extras/geometries/ExtrudeGeometry.js
浏览文件 @ 155fca7b
......@@ -8,14 +8,15 @@
* size: <float>, // size of the text
* height: <float>, // thickness to extrude text
* curveSegments: <int>, // number of points on the curves
* steps: <int>, // number of points for z-side extrusions / used for subdivding extrude spline too
* steps: <int>, // number of points for z-side extrusions / used for subdividing segements of extrude spline too
amount: <int>, // Amount
*
* bevelEnabled: <bool>, // turn on bevel
* bevelThickness: <float>, // how deep into text bevel goes
* bevelSize: <float>, // how far from text outline is bevel
* bevelSegments: <int>, // number of bevel layers
*
* extrudePath: <THREE.CurvePath> // 2d/3d spline path to extrude shape orthoganly to
* extrudePath: <THREE.CurvePath> // 2d/3d spline path to extrude shape orthogonality to
* bendPath: <THREE.CurvePath> // 2d path for bend the shape around x/y plane
*
* material: <int> // material index for front and back faces
......@@ -405,12 +406,20 @@ THREE.ExtrudeGeometry.prototype.addShape = function( shape, options ) {
bs = bevelSize;
// SETUP TNB variables
// SETUP TNB variables
// Reuse TNB from TubeGeomtry for now.
// TODO1 - have a .isClosed in spline?
// TODO2 - have have TNBs calculation refactored from TubeGeometry?
var splineTube = new THREE.TubeGeometry(extrudePath, steps, 1, 1, true, false);
console.log(splineTube);
var tangent;
var binormal = new THREE.Vector3();
var normal = new THREE.Vector3();
var position2 = new THREE.Vector3();
var lastBinormal = new THREE.Vector3(1, 0, 0);
var cx, cy;
// Back facing vertices
......@@ -429,19 +438,23 @@ THREE.ExtrudeGeometry.prototype.addShape = function( shape, options ) {
var splinePt = extrudePts[ 0 ];
tangent = extrudePath.getTangentAt(0);
normal.cross(lastBinormal, tangent).normalize();
binormal.cross(tangent, normal).normalize();
lastBinormal = binormal;
normal.copy(splineTube.normals[0]);
binormal.copy(splineTube.binormals[0]);
// normal.copy(binormal).crossSelf(splineTube.tangents[0]);
cx = vert.x;
cy = vert.y;
cx = vert.x;
cy = vert.y;
normal.multiplyScalar(vert.x);
binormal.multiplyScalar(vert.y);
position2.copy(splinePt);
position2.addSelf(normal);
position2.addSelf(binormal);
position2.copy(splinePt);
position2.x += cx * normal.x + cy * binormal.x;
position2.y += cx * normal.y + cy * binormal.y;
position2.z += cx * normal.z + cy * binormal.z;
v( position2.x, position2.y, position2.z );
}
......@@ -466,21 +479,21 @@ THREE.ExtrudeGeometry.prototype.addShape = function( shape, options ) {
} else {
// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
var splinePt = extrudePts[ (s - 1) ];
var splinePt = extrudePts[ (s-1) ];
tangent = extrudePath.getTangentAt((s - 1)/steps );
normal.copy(splineTube.normals[s-1]);
binormal.copy(splineTube.binormals[s-1]);
normal.cross(lastBinormal, tangent).normalize();
binormal.cross(tangent, normal).normalize();
lastBinormal = binormal;
// normal.copy(binormal).crossSelf(splineTube.tangents[s - 1]);
cx = vert.x;
cy = vert.y;
normal.multiplyScalar(vert.x);
binormal.multiplyScalar(vert.y);
position2.copy(splinePt);
position2.x += cx * normal.x + cy * binormal.x;
position2.y += cx * normal.y + cy * binormal.y;
position2.z += cx * normal.z + cy * binormal.z;
position2.addSelf(normal);
position2.addSelf(binormal);
v( position2.x, position2.y, position2.z );
}
......
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