//ported fromm threejs examples
//https://threejs.org/examples/#webgl_geometry_shapes
//https://github.com/mrdoob/three.js/blob/master/examples/webgl_geometry_shapes.html
// load CSS from file (do everything from JS)
AB.loadCSS ( '/uploads/threeport/main.css' );
AB.newDiv ('container');
// path edits:
import * as THREE from '/api/threemodule/libs/three.module.js';
import Stats from '/uploads/threeport/stats.module.js';
let container, stats;
let camera, scene, renderer;
let group;
let targetRotation = 0;
let targetRotationOnPointerDown = 0;
let pointerX = 0;
let pointerXOnPointerDown = 0;
let windowHalfX = window.innerWidth / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xf0f0f0 );
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set( 0, 150, 500 );
scene.add( camera );
const light = new THREE.PointLight( 0xffffff, 0.8 );
camera.add( light );
group = new THREE.Group();
group.position.y = 50;
scene.add( group );
const loader = new THREE.TextureLoader();
const texture = loader.load( "uploads/threejs/uv_grid_opengl.jpg" );
// it's necessary to apply these settings in order to correctly display the texture on a shape geometry
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.repeat.set( 0.008, 0.008 );
function addShape( shape, extrudeSettings, color, x, y, z, rx, ry, rz, s ) {
// flat shape with texture
// note: default UVs generated by THREE.ShapeGeometry are simply the x- and y-coordinates of the vertices
let geometry = new THREE.ShapeGeometry( shape );
let mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { side: THREE.DoubleSide, map: texture } ) );
mesh.position.set( x, y, z - 175 );
mesh.rotation.set( rx, ry, rz );
mesh.scale.set( s, s, s );
group.add( mesh );
// flat shape
geometry = new THREE.ShapeGeometry( shape );
mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { color: color, side: THREE.DoubleSide } ) );
mesh.position.set( x, y, z - 125 );
mesh.rotation.set( rx, ry, rz );
mesh.scale.set( s, s, s );
group.add( mesh );
// extruded shape
geometry = new THREE.ExtrudeGeometry( shape, extrudeSettings );
mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial( { color: color } ) );
mesh.position.set( x, y, z - 75 );
mesh.rotation.set( rx, ry, rz );
mesh.scale.set( s, s, s );
group.add( mesh );
addLineShape( shape, color, x, y, z, rx, ry, rz, s );
}
function addLineShape( shape, color, x, y, z, rx, ry, rz, s ) {
// lines
shape.autoClose = true;
const points = shape.getPoints();
const spacedPoints = shape.getSpacedPoints( 50 );
const geometryPoints = new THREE.BufferGeometry().setFromPoints( points );
const geometrySpacedPoints = new THREE.BufferGeometry().setFromPoints( spacedPoints );
// solid line
let line = new THREE.Line( geometryPoints, new THREE.LineBasicMaterial( { color: color } ) );
line.position.set( x, y, z - 25 );
line.rotation.set( rx, ry, rz );
line.scale.set( s, s, s );
group.add( line );
// line from equidistance sampled points
line = new THREE.Line( geometrySpacedPoints, new THREE.LineBasicMaterial( { color: color } ) );
line.position.set( x, y, z + 25 );
line.rotation.set( rx, ry, rz );
line.scale.set( s, s, s );
group.add( line );
// vertices from real points
let particles = new THREE.Points( geometryPoints, new THREE.PointsMaterial( { color: color, size: 4 } ) );
particles.position.set( x, y, z + 75 );
particles.rotation.set( rx, ry, rz );
particles.scale.set( s, s, s );
group.add( particles );
// equidistance sampled points
particles = new THREE.Points( geometrySpacedPoints, new THREE.PointsMaterial( { color: color, size: 4 } ) );
particles.position.set( x, y, z + 125 );
particles.rotation.set( rx, ry, rz );
particles.scale.set( s, s, s );
group.add( particles );
}
// California
const californiaPts = [];
californiaPts.push( new THREE.Vector2( 610, 320 ) );
californiaPts.push( new THREE.Vector2( 450, 300 ) );
californiaPts.push( new THREE.Vector2( 392, 392 ) );
californiaPts.push( new THREE.Vector2( 266, 438 ) );
californiaPts.push( new THREE.Vector2( 190, 570 ) );
californiaPts.push( new THREE.Vector2( 190, 600 ) );
californiaPts.push( new THREE.Vector2( 160, 620 ) );
californiaPts.push( new THREE.Vector2( 160, 650 ) );
californiaPts.push( new THREE.Vector2( 180, 640 ) );
californiaPts.push( new THREE.Vector2( 165, 680 ) );
californiaPts.push( new THREE.Vector2( 150, 670 ) );
californiaPts.push( new THREE.Vector2( 90, 737 ) );
californiaPts.push( new THREE.Vector2( 80, 795 ) );
californiaPts.push( new THREE.Vector2( 50, 835 ) );
californiaPts.push( new THREE.Vector2( 64, 870 ) );
californiaPts.push( new THREE.Vector2( 60, 945 ) );
californiaPts.push( new THREE.Vector2( 300, 945 ) );
californiaPts.push( new THREE.Vector2( 300, 743 ) );
californiaPts.push( new THREE.Vector2( 600, 473 ) );
californiaPts.push( new THREE.Vector2( 626, 425 ) );
californiaPts.push( new THREE.Vector2( 600, 370 ) );
californiaPts.push( new THREE.Vector2( 610, 320 ) );
for ( let i = 0; i < californiaPts.length; i ++ ) californiaPts[ i ].multiplyScalar( 0.25 );
const californiaShape = new THREE.Shape( californiaPts );
// Triangle
const triangleShape = new THREE.Shape()
.moveTo( 80, 20 )
.lineTo( 40, 80 )
.lineTo( 120, 80 )
.lineTo( 80, 20 ); // close path
// Heart
const x = 0, y = 0;
const heartShape = new THREE.Shape() // From http://blog.burlock.org/html5/130-paths
.moveTo( x + 25, y + 25 )
.bezierCurveTo( x + 25, y + 25, x + 20, y, x, y )
.bezierCurveTo( x - 30, y, x - 30, y + 35, x - 30, y + 35 )
.bezierCurveTo( x - 30, y + 55, x - 10, y + 77, x + 25, y + 95 )
.bezierCurveTo( x + 60, y + 77, x + 80, y + 55, x + 80, y + 35 )
.bezierCurveTo( x + 80, y + 35, x + 80, y, x + 50, y )
.bezierCurveTo( x + 35, y, x + 25, y + 25, x + 25, y + 25 );
// Square
const sqLength = 80;
const squareShape = new THREE.Shape()
.moveTo( 0, 0 )
.lineTo( 0, sqLength )
.lineTo( sqLength, sqLength )
.lineTo( sqLength, 0 )
.lineTo( 0, 0 );
// Rounded rectangle
const roundedRectShape = new THREE.Shape();
( function roundedRect( ctx, x, y, width, height, radius ) {
ctx.moveTo( x, y + radius );
ctx.lineTo( x, y + height - radius );
ctx.quadraticCurveTo( x, y + height, x + radius, y + height );
ctx.lineTo( x + width - radius, y + height );
ctx.quadraticCurveTo( x + width, y + height, x + width, y + height - radius );
ctx.lineTo( x + width, y + radius );
ctx.quadraticCurveTo( x + width, y, x + width - radius, y );
ctx.lineTo( x + radius, y );
ctx.quadraticCurveTo( x, y, x, y + radius );
} )( roundedRectShape, 0, 0, 50, 50, 20 );
// Track
const trackShape = new THREE.Shape()
.moveTo( 40, 40 )
.lineTo( 40, 160 )
.absarc( 60, 160, 20, Math.PI, 0, true )
.lineTo( 80, 40 )
.absarc( 60, 40, 20, 2 * Math.PI, Math.PI, true );
// Circle
const circleRadius = 40;
const circleShape = new THREE.Shape()
.moveTo( 0, circleRadius )
.quadraticCurveTo( circleRadius, circleRadius, circleRadius, 0 )
.quadraticCurveTo( circleRadius, - circleRadius, 0, - circleRadius )
.quadraticCurveTo( - circleRadius, - circleRadius, - circleRadius, 0 )
.quadraticCurveTo( - circleRadius, circleRadius, 0, circleRadius );
// Fish
const fishShape = new THREE.Shape()
.moveTo( x, y )
.quadraticCurveTo( x + 50, y - 80, x + 90, y - 10 )
.quadraticCurveTo( x + 100, y - 10, x + 115, y - 40 )
.quadraticCurveTo( x + 115, y, x + 115, y + 40 )
.quadraticCurveTo( x + 100, y + 10, x + 90, y + 10 )
.quadraticCurveTo( x + 50, y + 80, x, y );
// Arc circle
const arcShape = new THREE.Shape()
.moveTo( 50, 10 )
.absarc( 10, 10, 40, 0, Math.PI * 2, false );
const holePath = new THREE.Path()
.moveTo( 20, 10 )
.absarc( 10, 10, 10, 0, Math.PI * 2, true );
arcShape.holes.push( holePath );
// Smiley
const smileyShape = new THREE.Shape()
.moveTo( 80, 40 )
.absarc( 40, 40, 40, 0, Math.PI * 2, false );
const smileyEye1Path = new THREE.Path()
.moveTo( 35, 20 )
.absellipse( 25, 20, 10, 10, 0, Math.PI * 2, true );
const smileyEye2Path = new THREE.Path()
.moveTo( 65, 20 )
.absarc( 55, 20, 10, 0, Math.PI * 2, true );
const smileyMouthPath = new THREE.Path()
.moveTo( 20, 40 )
.quadraticCurveTo( 40, 60, 60, 40 )
.bezierCurveTo( 70, 45, 70, 50, 60, 60 )
.quadraticCurveTo( 40, 80, 20, 60 )
.quadraticCurveTo( 5, 50, 20, 40 );
smileyShape.holes.push( smileyEye1Path );
smileyShape.holes.push( smileyEye2Path );
smileyShape.holes.push( smileyMouthPath );
// Spline shape
const splinepts = [];
splinepts.push( new THREE.Vector2( 70, 20 ) );
splinepts.push( new THREE.Vector2( 80, 90 ) );
splinepts.push( new THREE.Vector2( - 30, 70 ) );
splinepts.push( new THREE.Vector2( 0, 0 ) );
const splineShape = new THREE.Shape()
.moveTo( 0, 0 )
.splineThru( splinepts );
const extrudeSettings = { depth: 8, bevelEnabled: true, bevelSegments: 2, steps: 2, bevelSize: 1, bevelThickness: 1 };
// addShape( shape, color, x, y, z, rx, ry,rz, s );
addShape( californiaShape, extrudeSettings, 0xf08000, - 300, - 100, 0, 0, 0, 0, 1 );
addShape( triangleShape, extrudeSettings, 0x8080f0, - 180, 0, 0, 0, 0, 0, 1 );
addShape( roundedRectShape, extrudeSettings, 0x008000, - 150, 150, 0, 0, 0, 0, 1 );
addShape( trackShape, extrudeSettings, 0x008080, 200, - 100, 0, 0, 0, 0, 1 );
addShape( squareShape, extrudeSettings, 0x0040f0, 150, 100, 0, 0, 0, 0, 1 );
addShape( heartShape, extrudeSettings, 0xf00000, 60, 100, 0, 0, 0, Math.PI, 1 );
addShape( circleShape, extrudeSettings, 0x00f000, 120, 250, 0, 0, 0, 0, 1 );
addShape( fishShape, extrudeSettings, 0x404040, - 60, 200, 0, 0, 0, 0, 1 );
addShape( smileyShape, extrudeSettings, 0xf000f0, - 200, 250, 0, 0, 0, Math.PI, 1 );
addShape( arcShape, extrudeSettings, 0x804000, 150, 0, 0, 0, 0, 0, 1 );
addShape( splineShape, extrudeSettings, 0x808080, - 50, - 100, 0, 0, 0, 0, 1 );
addLineShape( arcShape.holes[ 0 ], 0x804000, 150, 0, 0, 0, 0, 0, 1 );
for ( let i = 0; i < smileyShape.holes.length; i += 1 ) {
addLineShape( smileyShape.holes[ i ], 0xf000f0, - 200, 250, 0, 0, 0, Math.PI, 1 );
}
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
container.appendChild( stats.dom );
container.style.touchAction = 'none';
container.addEventListener( 'pointerdown', onPointerDown );
//
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function onPointerDown( event ) {
if ( event.isPrimary === false ) return;
pointerXOnPointerDown = event.clientX - windowHalfX;
targetRotationOnPointerDown = targetRotation;
document.addEventListener( 'pointermove', onPointerMove );
document.addEventListener( 'pointerup', onPointerUp );
}
function onPointerMove( event ) {
if ( event.isPrimary === false ) return;
pointerX = event.clientX - windowHalfX;
targetRotation = targetRotationOnPointerDown + ( pointerX - pointerXOnPointerDown ) * 0.02;
}
function onPointerUp() {
if ( event.isPrimary === false ) return;
document.removeEventListener( 'pointermove', onPointerMove );
document.removeEventListener( 'pointerup', onPointerUp );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
renderer.render( scene, camera );
}