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Example 1: Plan, axes
assets https://javascriptuse.gitbook.io/advanced/source-code-example#:~:text=assets%20https%3A//drive.google.com/file/d/1ngxmJrdJIzwY22NrXy6RV5lX0gdVZA5p/view%3Fusp%3Ddrive_link C:\xampp82\htdocs\three\test1.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript" src="./libs/three.js"></script>
<script type="text/javascript" src="./libs/dat.gui.js"></script>
<title>Threejs</title>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="WebGL-output"></div>
<script type="module">
function init() {
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(new THREE.Color(0xEEEEEE));
renderer.setSize(window.innerWidth, window.innerHeight);
// show axes in the screen
var axes = new THREE.AxisHelper(50);
scene.add(axes);
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20);
var planeMaterial = new THREE.MeshBasicMaterial({ color: 0xcccccc });
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
// rotate and position the plane
plane.rotation.x = - Math.PI / 2;
plane.position.x = 30;
plane.position.y = 0;
plane.position.z = 0;
// add the plane to the scene
scene.add(plane);
camera.position.x = - 30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
document.getElementById("WebGL-output").appendChild(renderer.domElement);
var gui = new dat.GUI();
var controls = new function () {
this.rotationPlan = 0;
this.positionX = 30;
this.positionY = 0;
this.positionZ = 0;
};
gui.add(controls, 'rotationPlan', -6, 6);
gui.add(controls, 'positionX', -30, 30);
gui.add(controls, 'positionY', -40, 40);
gui.add(controls, 'positionZ', -30, 30);
render();
function render() {
plane.rotation.x = controls.rotationPlan;
plane.position.x = controls.positionX;
plane.position.y = controls.positionY;
plane.position.z = controls.positionZ;
requestAnimationFrame(render);
renderer.render(scene, camera);
}
render();
}
init();
</script>
</body>
</html>Example 2: Plan, axes, Light
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript" src="./libs/three.js"></script>
<script type="text/javascript" src="./libs/dat.gui.js"></script>
<title>Threejs</title>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="WebGL-output"></div>
<script type="module">
function init() {
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(new THREE.Color(0xEEEEEE));
renderer.setSize(window.innerWidth, window.innerHeight);
// show axes in the screen
var axes = new THREE.AxisHelper(50);
scene.add(axes);
{
const color = 0xFFFFFF;
const intensity = 3;
const light = new THREE.DirectionalLight(color, intensity);
light.position.set(- 1, 2, 4);
scene.add(light);
}
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20);
var planeMaterial = new THREE.MeshBasicMaterial({ color: 0xcccccc });
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
// rotate and position the plane
plane.rotation.x = - Math.PI / 2;
plane.position.x = 30;
plane.position.y = 0;
plane.position.z = 0;
// create a cube
var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshPhongMaterial({ color: 0xff0000 });
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
cube.castShadow = true;
// position the cube
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
// add the cube to the scene
scene.add(cube);
// add the plane to the scene
scene.add(plane);
camera.position.x = - 30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
document.getElementById("WebGL-output").appendChild(renderer.domElement);
var gui = new dat.GUI();
var controls = new function () {
this.rotationPlan = 0;
this.positionX = 30;
this.positionY = 0;
this.positionZ = 0;
};
gui.add(controls, 'rotationPlan', -6, 6);
gui.add(controls, 'positionX', -30, 30);
gui.add(controls, 'positionY', -40, 40);
gui.add(controls, 'positionZ', -30, 30);
render();
function render() {
plane.rotation.x = controls.rotationPlan;
plane.position.x = controls.positionX;
plane.position.y = controls.positionY;
plane.position.z = controls.positionZ;
requestAnimationFrame(render);
renderer.render(scene, camera);
}
render();
}
init();
</script>
</body>
</html>Example 3: Shador
C:\xampp82\htdocs\three\test1.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript" src="./libs/three.js"></script>
<script type="text/javascript" src="./libs/dat.gui.js"></script>
<title>Threejs</title>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="WebGL-output"></div>
<script type="module">
function init() {
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(new THREE.Color(0xEEEEEE, 1.0));
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMapEnabled = true;
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20, 1, 1);
var planeMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
plane.receiveShadow = true;
// rotate and position the plane
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 15;
plane.position.y = 0;
plane.position.z = 0;
// add the plane to the scene
scene.add(plane);
// create a cube
var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshLambertMaterial({ color: 0xff0000 });
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
cube.castShadow = true;
// position the cube
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
// add the cube to the scene
scene.add(cube);
var sphereGeometry = new THREE.SphereGeometry(4, 20, 20);
var sphereMaterial = new THREE.MeshLambertMaterial({ color: 0x7777ff });
var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
// position the sphere
sphere.position.x = 20;
sphere.position.y = 0;
sphere.position.z = 2;
sphere.castShadow = true;
// add the sphere to the scene
scene.add(sphere);
camera.position.x = - 30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
// add subtle ambient lighting
var ambientLight = new THREE.AmbientLight(0x0c0c0c);
scene.add(ambientLight);
// add spotlight for the shadows
var spotLight = new THREE.SpotLight(0xffffff);
spotLight.position.set(-40, 60, -10);
spotLight.castShadow = true;
scene.add(spotLight);
document.getElementById("WebGL-output").appendChild(renderer.domElement);
var gui = new dat.GUI();
var controls = new function () {
this.planRotation = 0;
this.planX = 30;
this.planY = 0;
this.planZ = 0;
this.cubeX = -4;
this.cubeY = 3;
this.cubeZ = 0;
this.sphereX = 20;
this.sphereY = 0;
this.sphereZ = 2;
this.spotLightX = -40;
this.spotLightY = 60;
this.spotLightZ = 10;
};
gui.add(controls, 'planRotation', -7, 7);
gui.add(controls, 'planX', -30, 30);
gui.add(controls, 'planY', -40, 40);
gui.add(controls, 'planZ', -30, 30);
gui.add(controls, 'cubeX', -30, 30);
gui.add(controls, 'cubeY', -40, 40);
gui.add(controls, 'cubeZ', -30, 30);
gui.add(controls, 'sphereX', -20, 20);
gui.add(controls, 'sphereY', -20, 20);
gui.add(controls, 'sphereZ', -20, 20);
gui.add(controls, 'spotLightX', -40, 40);
gui.add(controls, 'spotLightY', -60, 60);
gui.add(controls, 'spotLightZ', -10, 10);
render();
function render() {
plane.rotation.x = controls.planRotation;
plane.position.x = controls.planX;
plane.position.y = controls.planY;
plane.position.z = controls.planZ;
cube.position.x = controls.cubeX;
cube.position.y = controls.cubeY;
cube.position.z = controls.cubeZ;
sphere.position.x = controls.sphereX;
sphere.position.y = controls.sphereY;
sphere.position.z = controls.sphereZ;
spotLight.position.x = controls.spotLightX;
spotLight.position.y = controls.spotLightY;
spotLight.position.z = controls.spotLightZ;
requestAnimationFrame(render);
renderer.render(scene, camera);
}
render();
}
init();
</script>
</body>
</html>Last updated
