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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Babylon.js sample code</title>
<!-- Babylon.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.6.2/dat.gui.min.js"></script>
<script src="https://assets.babylonjs.com/generated/Assets.js"></script>
<script src="https://preview.babylonjs.com/ammo.js"></script>
<script src="https://preview.babylonjs.com/cannon.js"></script>
<script src="https://preview.babylonjs.com/Oimo.js"></script>
<script src="https://preview.babylonjs.com/earcut.min.js"></script>
<script src="https://preview.babylonjs.com/babylon.js"></script>
<script src="https://preview.babylonjs.com/materialsLibrary/babylonjs.materials.min.js"></script>
<script src="https://preview.babylonjs.com/proceduralTexturesLibrary/babylonjs.proceduralTextures.min.js"></script>
<script src="https://preview.babylonjs.com/postProcessesLibrary/babylonjs.postProcess.min.js"></script>
<script src="https://preview.babylonjs.com/loaders/babylonjs.loaders.js"></script>
<script src="https://preview.babylonjs.com/serializers/babylonjs.serializers.min.js"></script>
<script src="https://preview.babylonjs.com/gui/babylon.gui.min.js"></script>
<script src="https://preview.babylonjs.com/inspector/babylon.inspector.bundle.js"></script>
<style>
html,
body {
overflow: hidden;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#renderCanvas {
width: 100%;
height: 100%;
touch-action: none;
}
</style>
</head>
<body>
<canvas id="renderCanvas"></canvas>
<script>
var canvas = document.getElementById("renderCanvas");
var startRenderLoop = function (engine) {
engine.runRenderLoop(function () {
if (sceneToRender && sceneToRender.activeCamera) {
sceneToRender.render();
}
});
}
var engine = null;
var scene = null;
var sceneToRender = null;
var createDefaultEngine = function () { return new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true, disableWebGL2Support: false }); };
const createScene = () => {
const scene = new BABYLON.Scene(engine);
const camera = new BABYLON.ArcRotateCamera("camera", -Math.PI / 2.2, Math.PI / 2.2, 15, new BABYLON.Vector3(0, 0, 0));
camera.upperBetaLimit = Math.PI / 2.2;
camera.attachControl(canvas, true);
//const light = new BABYLON.HemisphericLight("light", new BABYLON.Vector3(1, 1, 0));
const light = new BABYLON.DirectionalLight("dir01", new BABYLON.Vector3(0, -1, 1), scene);
light.position = new BABYLON.Vector3(0, 50, -100);
//light.intensity = 0.3;
// Shadow generator
const shadowGenerator = new BABYLON.ShadowGenerator(10240, light);
const sound = new BABYLON.Sound("sound", Assets.sound.cannonBlast.path, scene);
//Leave time for the sound file to load before playing it
//setInterval(() => sound.play(), 3000);
//box
const trees = spriteTrees();
const sky = buildSky(scene);
const buildings = buildDwellings();
const car = buildCar(scene,shadowGenerator);
const dude = buildDude(scene, shadowGenerator);
const fountain = buildFountain(scene);
const streetLight = buildStreetLight(scene, shadowGenerator);
const lightPanel = buildLightPanel(light);
//shadowGenerator.addShadowCaster(car, true);
shadowGenerator.addShadowCaster(fountain, true);
for (let i = 0; i < buildings.length; i++) {
shadowGenerator.addShadowCaster(buildings[i], true);
}
const ground = buildGround();
ground.receiveShadows = true;
return scene;
}
const buildLightPanel = (light) => {
const adt = BABYLON.GUI.AdvancedDynamicTexture.CreateFullscreenUI("UI");
const panel = new BABYLON.GUI.StackPanel();
panel.width = "220px";
panel.top = "-50px";
panel.horizontalAlignment = BABYLON.GUI.Control.HORIZONTAL_ALIGNMENT_RIGHT;
panel.verticalAlignment = BABYLON.GUI.Control.VERTICAL_ALIGNMENT_BOTTOM;
adt.addControl(panel);
const header = new BABYLON.GUI.TextBlock();
header.text = "Night to Day";
header.height = "30px";
header.color = "white";
panel.addControl(header);
const slider = new BABYLON.GUI.Slider();
slider.minimum = 0;
slider.maximum = 1;
slider.borderColor = "black";
slider.color = "#AAAAAA";
slider.background = "#white";
slider.value = 1;
slider.height = "20px";
slider.width = "200px";
light.intensity = slider.value;
slider.onValueChangedObservable.add((value) => {
if (light) {
light.intensity = value;
}
});
panel.addControl(slider);
}
const buildStreetLight = (scene, shadowGenerator) => {
BABYLON.SceneLoader.ImportMeshAsync("", "https://assets.babylonjs.com/meshes/", "lamp.babylon").then(() => {
const lampLight = new BABYLON.SpotLight("lampLight", BABYLON.Vector3.Zero(), new BABYLON.Vector3(0, -1, 0), 0.6 * Math.PI, 7, scene);
lampLight.diffuse = BABYLON.Color3.Yellow();
lampLight.parent = scene.getMeshByName("bulb");
const lamp = scene.getMeshByName("lamp");
lamp.position = new BABYLON.Vector3(-0.5, 0, 0);
lamp.rotation = BABYLON.Vector3.Zero();
lamp.rotation.y = -Math.PI / 4;
lamp1 = lamp.clone("lamp1");
lamp1.position.x = -7.5;
lamp1.position.z = 1.7;
lamp1.rotation.y = Math.PI / 2;
lamp2 = lamp1.clone("lamp2");
lamp2.position.x = -3.5;
lamp2.position.z = -0.1;
lamp2.rotation.y = -Math.PI / 2;
lamp3 = lamp.clone("lamp3");
lamp3.position.x = 1.2;
lamp3.position.z = -6.3;
lamp3.rotation.y = Math.PI / 32;
lamp4 = lamp.clone("lamp4");
lamp4.position.x = 4;
lamp4.position.z = -3.7;
lamp4.rotation.y = Math.PI;
shadowGenerator.addShadowCaster(lamp, true);
shadowGenerator.addShadowCaster(lamp1, true);
shadowGenerator.addShadowCaster(lamp2, true);
shadowGenerator.addShadowCaster(lamp3, true);
shadowGenerator.addShadowCaster(lamp4, true);
});
}
const buildFountain = (scene) => {
const fountainProfile = [
new BABYLON.Vector3(0, 0, 0),
new BABYLON.Vector3(0.5, 0, 0),
new BABYLON.Vector3(0.5, 0.2, 0),
new BABYLON.Vector3(0.4, 0.2, 0),
new BABYLON.Vector3(0.4, 0.05, 0),
new BABYLON.Vector3(0.05, 0.1, 0),
new BABYLON.Vector3(0.05, 0.8, 0),
new BABYLON.Vector3(0.15, 0.9, 0)
];
const fountain = BABYLON.MeshBuilder.CreateLathe("fountain", { shape: fountainProfile, sideOrientation: BABYLON.Mesh.DOUBLESIDE }, scene);
//fountain.scaling = new BABYLON.Vector3(0.1, 0.1, 0.1);
fountain.position.x = -4;
fountain.position.z = -6;
// Create a particle system
var particleSystem = new BABYLON.ParticleSystem("particles", 250, scene);
//Texture of each particle
particleSystem.particleTexture = new BABYLON.Texture(Assets.textures.flare_png.path, scene);
// Where the particles come from
particleSystem.emitter = new BABYLON.Vector3(-4, 0.9, -6); // the starting object, the emitter
particleSystem.minEmitBox = new BABYLON.Vector3(-0.05, 0, 0); // Starting all from
particleSystem.maxEmitBox = new BABYLON.Vector3(0.05, 0, 0); // To...
// Colors of all particles
particleSystem.color1 = new BABYLON.Color4(0.7, 0.8, 1.0, 1.0);
particleSystem.color2 = new BABYLON.Color4(0.2, 0.5, 1.0, 1.0);
particleSystem.colorDead = new BABYLON.Color4(0, 0, 0.2, 0.0);
// Size of each particle (random between...
particleSystem.minSize = 0.04;
particleSystem.maxSize = 0.20;
// Life time of each particle (random between...
particleSystem.minLifeTime = 2;
particleSystem.maxLifeTime = 3.5;
// Emission rate
particleSystem.emitRate = 1500;
// Blend mode : BLENDMODE_ONEONE, or BLENDMODE_STANDARD
particleSystem.blendMode = BABYLON.ParticleSystem.BLENDMODE_ONEONE;
// Set the gravity of all particles
particleSystem.gravity = new BABYLON.Vector3(0, -0.3, 0);
// Direction of each particle after it has been emitted
particleSystem.direction1 = new BABYLON.Vector3(-0.1, 0.4, 0.1);
particleSystem.direction2 = new BABYLON.Vector3(0.1, 0.4, -0.1);
// Angular speed, in radians
particleSystem.minAngularSpeed = 0;
particleSystem.maxAngularSpeed = Math.PI;
// Speed
particleSystem.minEmitPower = 0.5;
particleSystem.maxEmitPower = 1.5;
particleSystem.updateSpeed = 0.25;
//Switch fountain on and off
let switched = false;
const pointerDown = (mesh) => {
if (mesh === fountain) {
switched = !switched;
if (switched) {
// Start the particle system
particleSystem.start();
}
else {
// Stop the particle system
particleSystem.stop();
}
}
}
scene.onPointerObservable.add((pointerInfo) => {
switch (pointerInfo.type) {
case BABYLON.PointerEventTypes.POINTERDOWN:
if (pointerInfo.pickInfo.hit) {
pointerDown(pointerInfo.pickInfo.pickedMesh)
}
break;
}
});
// Start the particle system
//particleSystem.start();
return fountain;
}
const spriteTrees = () => {
const spriteManagerTrees = new BABYLON.SpriteManager("treesManager", Assets.sprites.palm_png.path, 2000, { width: 512, height: 1024 }, scene);
//We create trees at random positions
for (let i = 0; i < 500; i++) {
const tree = new BABYLON.Sprite("tree", spriteManagerTrees);
tree.position.x = Math.random() * (-30);
tree.position.z = Math.random() * 20 + 8;
tree.position.y = 0.5;
}
for (let i = 0; i < 500; i++) {
const tree = new BABYLON.Sprite("tree", spriteManagerTrees);
tree.position.x = Math.random() * (25) + 7;
tree.position.z = Math.random() * -35 + 8;
tree.position.y = 0.5;
}
}
const buildSky = (scene) => {
const skybox = BABYLON.MeshBuilder.CreateBox("skyBox", { size: 150 }, scene);
const skyboxMaterial = new BABYLON.StandardMaterial("skyBox", scene);
skyboxMaterial.backFaceCulling = false;
skyboxMaterial.reflectionTexture = new BABYLON.CubeTexture("https://assets.babylonjs.com/skyboxes/skybox/skybox", scene);
skyboxMaterial.reflectionTexture.coordinatesMode = BABYLON.Texture.SKYBOX_MODE;
skyboxMaterial.diffuseColor = new BABYLON.Color3(0, 0, 0);
skyboxMaterial.specularColor = new BABYLON.Color3(0, 0, 0);
skybox.material = skyboxMaterial;
}
const buildGround = () => {
const largeGroundMat = new BABYLON.StandardMaterial("largeGroundMat");
largeGroundMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/valleygrass.png");
const largeGround = BABYLON.MeshBuilder.CreateGroundFromHeightMap("largeGround", "https://assets.babylonjs.com/environments/villageheightmap.png", { width: 150, height: 150, subdivisions: 20, minHeight: 0, maxHeight: 10 });
largeGround.material = largeGroundMat;
//调节灯数量，默认3个
largeGround.material.maxSimultaneousLights = 10;
//const ground = BABYLON.MeshBuilder.CreateGround("ground", { width: 15, height: 16 });
//const groundMat = new BABYLON.StandardMaterial("groundMat");
//groundMat.diffuseColor = new BABYLON.Color3(0, 0.3, 0);
//ground.material = groundMat; //Place the material property of the ground
//ground.receiveShadows = true;
return largeGround;
}
const buildDude = (scene, shadowGenerator) => {
const walk = function (turn, dist) {
this.turn = turn;
this.dist = dist;
}
const track = [];
track.push(new walk(86, 7));
track.push(new walk(-85, 14.8));
track.push(new walk(-93, 16.5));
track.push(new walk(48, 25.5));
track.push(new walk(-112, 30.5));
track.push(new walk(-72, 33.2));
track.push(new walk(42, 37.5));
track.push(new walk(-98, 45.2));
track.push(new walk(0, 47));
// Dude
BABYLON.SceneLoader.ImportMeshAsync("him", Assets.meshes.dude.rootUrl, Assets.meshes.dude.filename, scene).then((result) => {
const dude = result.meshes[0];
dude.scaling = new BABYLON.Vector3(0.008, 0.008, 0.008);
shadowGenerator.addShadowCaster(dude, true);
dude.position = new BABYLON.Vector3(-6, 0, 0);
dude.rotate(BABYLON.Axis.Y, BABYLON.Tools.ToRadians(-95), BABYLON.Space.LOCAL);
const startRotation = dude.rotationQuaternion.clone();
scene.beginAnimation(result.skeletons[0], 0, 100, true, 1.0);
let distance = 0;
let step = 0.015;
let p = 0;
scene.onBeforeRenderObservable.add(() => {
dude.movePOV(0, 0, step);
distance += step;
if (distance > track[p].dist) {
dude.rotate(BABYLON.Axis.Y, BABYLON.Tools.ToRadians(track[p].turn), BABYLON.Space.LOCAL);
p += 1;
p %= track.length;
if (p === 0) {
distance = 0;
dude.position = new BABYLON.Vector3(-6, 0, 0);
dude.rotationQuaternion = startRotation.clone();
}
}
});
return dude;
});
}
const buildDwellings = () => {
const detached_house = buildHouse(1);
detached_house.rotation.y = -Math.PI / 16;
detached_house.position.x = -6.8;
detached_house.position.z = 2.5;
const semi_house = buildHouse(2);
semi_house.rotation.y = -Math.PI / 16;
semi_house.position.x = -4.5;
semi_house.position.z = 3;
const places = []; //each entry is an array [house type, rotation, x, z]
places.push([1, -Math.PI / 16, -6.8, 2.5]);
places.push([2, -Math.PI / 16, -4.5, 3]);
places.push([2, -Math.PI / 16, -1.5, 4]);
places.push([2, -Math.PI / 3, 1.5, 6]);
places.push([2, 15 * Math.PI / 16, -6.4, -1.5]);
places.push([1, 15 * Math.PI / 16, -4.1, -1]);
places.push([2, 15 * Math.PI / 16, -2.1, -0.5]);
places.push([1, 5 * Math.PI / 4, 0, -1]);
places.push([1, Math.PI + Math.PI / 2.5, 0.5, -3]);
places.push([2, Math.PI + Math.PI / 2.1, 0.75, -5]);
places.push([1, Math.PI + Math.PI / 2.25, 0.75, -7]);
places.push([2, Math.PI / 1.9, 4.75, -1]);
places.push([1, Math.PI / 1.95, 4.5, -3]);
places.push([2, Math.PI / 1.9, 4.75, -5]);
places.push([1, Math.PI / 1.9, 4.75, -7]);
places.push([2, -Math.PI / 3, 5.25, 2]);
places.push([1, -Math.PI / 3, 6, 4]);
//Create instances from the first two that were built
const houses = [];
for (let i = 0; i < places.length; i++) {
if (places[i][0] === 1) {
houses[i] = detached_house.createInstance("house" + i);
}
else {
houses[i] = semi_house.createInstance("house" + i);
}
houses[i].rotation.y = places[i][1];
houses[i].position.x = places[i][2];
houses[i].position.z = places[i][3];
}
return houses;
}
const buildHouse = (width) => {
const box = buildBox(width);
const roof = buildRoof(width);
return BABYLON.Mesh.MergeMeshes([box, roof], true, false, null, false, true);
}
const buildRoof = (width) => {
//basic house
const roof = BABYLON.MeshBuilder.CreateCylinder("roof", { diameter: 1.3, height: 1.2, tessellation: 3 });
roof.scaling.x = 0.75;
roof.scaling.y = width;
roof.rotation.z = Math.PI / 2;
//roof.rotation.y = Math.PI / 4;
roof.position.y = 1.22;
const roofMat = new BABYLON.StandardMaterial("roofMat");
roofMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/roof.jpg", scene);
roof.material = roofMat;
return roof;
}
const buildBox = (width) => {
//texture
const boxMat = new BABYLON.StandardMaterial("boxMat");
const faceUV = [];
if (width == 2) {
boxMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/semihouse.png")
faceUV[0] = new BABYLON.Vector4(0.6, 0.0, 1.0, 1.0); //rear face
faceUV[1] = new BABYLON.Vector4(0.0, 0.0, 0.4, 1.0); //front face
faceUV[2] = new BABYLON.Vector4(0.4, 0, 0.6, 1.0); //right side
faceUV[3] = new BABYLON.Vector4(0.4, 0, 0.6, 1.0); //left side
}
else {
boxMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/cubehouse.png");
faceUV[0] = new BABYLON.Vector4(0.5, 0.0, 0.75, 1.0); //rear face
faceUV[1] = new BABYLON.Vector4(0.0, 0.0, 0.25, 1.0); //front face
faceUV[2] = new BABYLON.Vector4(0.25, 0, 0.5, 1.0); //right side
faceUV[3] = new BABYLON.Vector4(0.75, 0, 1.0, 1.0); //left side
}
const box = BABYLON.MeshBuilder.CreateBox("box", { faceUV: faceUV, wrap: true });
//box.scaling = new BABYLON.Vector3(2, 1.5, 3);
// box.position.x = -2;
box.position.y = 0.5;
box.scaling.x = width;
// box.position.z = 0.1;
//box.rotation.y = Math.PI / 4;
//box.rotation.y = BABYLON.Tools.ToRadians(45);
// const boxMat = new BABYLON.StandardMaterial("boxMat");
// boxMat.diffuseTexture = new BABYLON.Texture("https://www.babylonjs-playground.com/textures/floor.png");
box.material = boxMat;
return box;
}
const buildCar = (scene,shadowGenerator) => {
const carBody = buildCarBody();
const carWheels = buildWheels(carBody, scene);
carBody.rotation = new BABYLON.Vector3(-Math.PI / 2, Math.PI, -Math.PI / 2);
carBody.position.y = 0.16;
carBody.position.x = 3;
carBody.position.z = 8;
shadowGenerator.addShadowCaster(carBody, true);
const animCar = new BABYLON.Animation("carAnimation", "position.z", 30, BABYLON.Animation.ANIMATIONTYPE_FLOAT, BABYLON.Animation.ANIMATIONLOOPMODE_CYCLE);
const carKeys = [];
carKeys.push({
frame: 0,
value: 8
});
carKeys.push({
frame: 150,
value: -7
});
carKeys.push({
frame: 200,
value: -7
});
animCar.setKeys(carKeys);
carBody.animations = [];
carBody.animations.push(animCar);
scene.beginAnimation(carBody, 0, 200, true);
return carBody;
}
const buildCarBody = (shadowGenerator) => {
const outline = [
new BABYLON.Vector3(-0.3, 0, -0.1),
new BABYLON.Vector3(0.2, 0, -0.1),
]
//curved front
for (let i = 0; i < 20; i++) {
outline.push(new BABYLON.Vector3(0.2 * Math.cos(i * Math.PI / 40), 0, 0.2 * Math.sin(i * Math.PI / 40) - 0.1));
}
//top
outline.push(new BABYLON.Vector3(0, 0, 0.1));
outline.push(new BABYLON.Vector3(-0.3, 0, 0.1));
//car face UVs
const faceUV = [];
faceUV[0] = new BABYLON.Vector4(0, 0.5, 0.38, 1);
faceUV[1] = new BABYLON.Vector4(0, 0, 1, 0.5);
faceUV[2] = new BABYLON.Vector4(0.38, 1, 0, 0.5);
//car material
const carMat = new BABYLON.StandardMaterial("carMat");
carMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/car.png");
const carBody = BABYLON.MeshBuilder.ExtrudePolygon("carBody", { shape: outline, depth: 0.2, faceUV: faceUV, wrap: true });
carBody.material = carMat;
return carBody;
}
const buildWheels = (carBody, scene) => {
//car material
const wheelMat = new BABYLON.StandardMaterial("wheelMat");
wheelMat.diffuseTexture = new BABYLON.Texture("https://assets.babylonjs.com/environments/wheel.png");
const wheelRB = BABYLON.MeshBuilder.CreateCylinder("wheelRB", { diameter: 0.125, height: 0.05 });
wheelRB.material = wheelMat;
wheelRB.parent = carBody;
wheelRB.position.z = -0.1;
wheelRB.position.x = -0.2;
wheelRB.position.y = 0.035;
const wheelRF = wheelRB.clone("wheelRF");
wheelRF.position.x = 0.1;
const wheelLB = wheelRB.clone("wheelLB");
wheelLB.position.y = -0.2 - 0.035;
const wheelLF = wheelRF.clone("wheelLF");
wheelLF.position.y = -0.2 - 0.035;
const animWheel = wheelAnimation();
//Link this animation to the right back wheel
wheelRB.animations = [];
wheelRB.animations.push(animWheel);
wheelRF.animations = [];
wheelRF.animations.push(animWheel);
wheelLB.animations = [];
wheelLB.animations.push(animWheel);
wheelLF.animations = [];
wheelLF.animations.push(animWheel);
scene.beginAnimation(wheelRB, 0, 30, true);
scene.beginAnimation(wheelRF, 0, 30, true);
scene.beginAnimation(wheelLB, 0, 30, true);
scene.beginAnimation(wheelLF, 0, 30, true);
}
const carAnimation = () => {
const animCar = new BABYLON.Animation("carAnimation", "position.x", 30, BABYLON.Animation.ANIMATIONTYPE_FLOAT, BABYLON.Animation.ANIMATIONLOOPMODE_CYCLE);
const carKeys = [];
carKeys.push({
frame: 0,
value: -4
});
carKeys.push({
frame: 150,
value: 4
});
carKeys.push({
frame: 210,
value: 4
});
animCar.setKeys(carKeys);
return animCar;
}
const wheelAnimation = () => {
const animWheel = new BABYLON.Animation("wheelAnimation", "rotation.y", 30, BABYLON.Animation.ANIMATIONTYPE_FLOAT, BABYLON.Animation.ANIMATIONLOOPMODE_CYCLE);
const wheelKeys = [];
//At the animation key 0, the value of rotation.y is 0
wheelKeys.push({
frame: 0,
value: 0
});
//At the animation key 30, (after 1 sec since animation fps = 30) the value of rotation.y is 2PI for a complete rotation
wheelKeys.push({
frame: 30,
value: 2 * Math.PI
});
//set the keys
animWheel.setKeys(wheelKeys);
return animWheel;
}
window.initFunction = async function () {
var asyncEngineCreation = async function () {
try {
return createDefaultEngine();
} catch (e) {
console.log("the available createEngine function failed. Creating the default engine instead");
return createDefaultEngine();
}
}
window.engine = await asyncEngineCreation();
if (!engine) throw 'engine should not be null.';
startRenderLoop(engine, canvas);
window.scene = createScene();
};
initFunction().then(() => {
sceneToRender = scene
});
// Resize
window.addEventListener("resize", function () {
engine.resize();
});
</script>
</body>
</html>