19-transparent-texture.html
<!DOCTYPE html>
<html>
<head>
<title>three.js webgl - Transparent texture</title>
<meta charset="utf-8">
<script src="../frameworks/three.min.js"></script>
<script src="../frameworks/dat.gui.min.js"></script>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<script>
var renderer;
var scene;
var camera;
var clock;
var control;
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0x000000, 1.0);
renderer.physicallyCorrectLights = true;
renderer.gammaInput = true;
renderer.gammaOutput = true;
renderer.shadowMap.enabled = true;
renderer.toneMapping = THREE.ReinhardToneMapping;
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
var textureLoader= new THREE.TextureLoader();
var floorTexture=textureLoader.load("../data/graphics/textures/terrain/grass1.jpg");
floorTexture.wrapS=THREE.RepeatWrapping;
floorTexture.wrapT=THREE.RepeatWrapping;
floorTexture.repeat.set(5,5);
var planeGeometry = new THREE.PlaneGeometry(35, 35);
var planeMaterial = new THREE.MeshLambertMaterial({color: 0xffffff, map:floorTexture});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
plane.receiveShadow = true;
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 0;
plane.position.y = 0;
plane.position.z = 0;
scene.add(plane);
var grassTexture=textureLoader.load("../data/graphics/textures/vegetation/grass.png");
var grassGeometry = new THREE.PlaneGeometry(6, 6);
var grassMaterial = new THREE.MeshLambertMaterial({color: 0xffffff, map:grassTexture, transparent:true, opacity:1, side: THREE.DoubleSide, depthWrite: false, depthTest: false });
var grass = new THREE.Mesh(grassGeometry, grassMaterial);
grass.position.y = 2.7;
grass.position.x=1;
var grass0=grass.clone();
scene.add(grass0);
var grass1=grass.clone();
scene.add(grass1)
grass1.rotation.y=0.25*Math.PI;
var grass2=grass.clone()
grass2.rotation.y=-0.25*Math.PI;
scene.add(grass2)
var grass3=grass.clone()
grass3.rotation.y=0.5*Math.PI;
scene.add(grass3)
/*
var wall1=wall.clone()
scene.add(wall1);
var wall2=wall.clone()
scene.add(wall2);
var wall3=wall.clone()
scene.add(wall3);
wall.position.z=-10;
wall1.position.z=10;
wall2.position.x=-9.5;
wall3.position.x=9.5;
wall2.rotation.y=0.5 * Math.PI;
wall3.rotation.y=0.5 * Math.PI;
*/
camera.position.x = 17;
camera.position.y = 19;
camera.position.z = 14;
camera.lookAt(scene.position);
var ambient = new THREE.AmbientLight(0xffffff,0.5);
scene.add(ambient);
var light = new THREE.DirectionalLight(0xffffff, 2, 100, 2 );
light.position.set(10, 20 , 20);
light.castShadow = true;
light.shadow.mapSize.width = 3 * 512;
light.shadow.mapSize.height = 3 * 512;
light.shadow.bias = 0.1;
light.shadow.camera.top = 25; //X
light.shadow.camera.right = 25;
light.shadow.camera.left = -25;
light.shadow.camera.bottom = -25;
light.shadow.camera.visible = true;
scene.add(light);
control = new function() {
this.rotationSpeed = 0.5;
this.opacity = 1;
this.color = 0x90abed;
};
addControlGui(control);
clock = new THREE.Clock();
document.body.appendChild(renderer.domElement);
render();
}
function addControlGui(controlObject) {
var gui = new dat.GUI();
gui.add(controlObject, 'rotationSpeed', -1, 1);
}
function render() {
var delta = clock.getDelta();
var rotSpeed = delta*control.rotationSpeed;
camera.position.x = camera.position.x * Math.cos(rotSpeed) + camera.position.z * Math.sin(rotSpeed);
camera.position.z = camera.position.z * Math.cos(rotSpeed) - camera.position.x * Math.sin(rotSpeed);
camera.lookAt(scene.position);
requestAnimationFrame(render);
renderer.render(scene, camera);
}
function handleResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
window.onload = init;
window.addEventListener('resize', handleResize, false);
</script>
<body>
</body>
</html>