Shadow and material code
<!DOCTYPE html>
<html lang=”en”>
<body>
<script src=”js/three.min.js”></script>
<script>
var renderer = new THREE.WebGLRenderer({
antialias : true
});
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
renderer.setClearColor( 0×000000, 1 );
renderer.shadowMapEnabled = true;
renderer.shadowMapType = THREE.PCFSoftShadowMap;
var onRenderFcts= [];
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.01, 1000);
camera.position.z = 25;
// camera.position.set(0, 8, 15);
// camera.lookAt(scene.position)
//////////////////////////////////////////////////////////////////////////////////
// Comment //
//////////////////////////////////////////////////////////////////////////////////
var ambient = new THREE.AmbientLight( 0×444444 );
scene.add( ambient );
var light = new THREE.DirectionalLight( 0x4444cc, 2 );
light.position.set( 1, -1, 1 ).normalize();
scene.add( light );
var spotLight = new THREE.SpotLight( 0xFFAA88 );
spotLight.target.position.set( 0, 2, 0 );
spotLight.shadowCameraNear = 0.01;
spotLight.castShadow = true;
spotLight.shadowDarkness = 0.5;
spotLight.shadowCameraVisible = true;
// console.dir(spotLight)
// spotLight.shadowMapWidth = 1024;
// spotLight.shadowMapHeight = 1024;
scene.add( spotLight );
onRenderFcts.push(function(){
var angle = Date.now()/1000 * Math.PI;
// angle = Math.PI*2
spotLight.position.x = Math.cos(angle*-0.1)*20;
spotLight.position.y = 10 + Math.sin(angle*0.5)*6;
spotLight.position.z = Math.sin(angle*-0.1)*20;
})
//////////////////////////////////////////////////////////////////////////////////
// Comment //
//////////////////////////////////////////////////////////////////////////////////
var geometry = new THREE.TorusKnotGeometry(25, 8, 75, 20);
//var texture = THREE.ImageUtils.loadTexture( ‘texture/checkerboard.jpg’);
//texture.repeat.set( 0.7, 1 );
//texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
var material = new THREE.MeshPhongMaterial({
ambient : 0×444444,
color : 0x8844AA,
shininess : 300,
specular : 0x33AA33,
shading : THREE.SmoothShading,
//map : texture
});
var torusKnot = new THREE.Mesh( geometry, material );
torusKnot.scale.multiplyScalar(1/18);
torusKnot.position.y = 4;
scene.add( torusKnot );
onRenderFcts.push(function(){
// torusKnot.rotation.x += 0.005;
// torusKnot.rotation.y += 0.03;
// torusKnot.rotation.z += 0.02;
})
torusKnot.castShadow = true;
torusKnot.receiveShadow = true;
//////////////////////////////////////////////////////////////////////////////////
// Ground
//////////////////////////////////////////////////////////////////////////////////
// var geometry = new THREE.CubeGeometry( 10, 0.2, 10);
var geometry = new THREE.BoxGeometry( 10, 0.2, 10);
//var texture = THREE.ImageUtils.loadTexture(‘texture/UV_Grid_Sm.jpg’);
//texture.repeat.set( 0.5, 0.8 );
//texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
var material = new THREE.MeshPhongMaterial({
ambient : 0×444444,
color : 0x66aa66,
shininess : 150,
specular : 0×888888,
shading : THREE.SmoothShading,
// map : texture
});
var ground = new THREE.Mesh( geometry, material );
ground.scale.multiplyScalar(3);
ground.position.y = -0.5/2;
scene.add( ground );
ground.castShadow = false;
ground.receiveShadow = true;
//////////////////////////////////////////////////////////////////////////////////
// Camera Controls //
//////////////////////////////////////////////////////////////////////////////////
var mouse = {x : 0, y : 0}
document.addEventListener(‘mousemove’, function(event){
mouse.x = (event.clientX / window.innerWidth ) – 0.5
mouse.y = (event.clientY / window.innerHeight) – 0.5
}, false)
onRenderFcts.push(function(delta, now){
camera.position.x += (mouse.x*40 – camera.position.x) * (delta*3)
camera.position.y += (mouse.y*10 – camera.position.y + 4) * (delta*3)
// limit camera position to avoid showing shadow on backface
camera.position.y = Math.max(camera.position.y, 3);
camera.lookAt( scene.position )
})
//////////////////////////////////////////////////////////////////////////////////
// render the scene //
//////////////////////////////////////////////////////////////////////////////////
onRenderFcts.push(function(){
renderer.render( scene, camera );
})
//////////////////////////////////////////////////////////////////////////////////
// loop runner //
//////////////////////////////////////////////////////////////////////////////////
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec – lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
onRenderFcts.forEach(function(onRenderFct){
onRenderFct(deltaMsec/1000, nowMsec/1000)
})
})
</script></body></html>
