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我試圖給webgl場景（Three.js）添加背景。場景包含我使用DAZ3D和Photoshop創建的兩個動畫spritesheet。我已經嘗試過幾乎所有的東西，但無濟於事，背景是白色或黑色。我已經在網上嘗試了很多例子，然後我的spritesheet動畫師將無法工作或背景不會出現。我讀到我需要用兩個攝像頭製作兩個場景，但這似乎並不奏效。Three.js場景背景不出現
我真的不明白爲什麼我需要有兩個場景呢。
<script>
// standard global variables
var container,scene,camera,renderer,controls,stats;
var keyboard = new THREEx.KeyboardState();
var clock = new THREE.Clock();
// custom global variables
var attack,defense;
init();
animate();
// FUNCTIONS
function init(){
// SCENE
scene = new THREE.Scene();
// CAMERA
var SCREEN_WIDTH = window.innerWidth,SCREEN_HEIGHT = window.innerHeight;
var VIEW_ANGLE = 45,ASPECT = SCREEN_WIDTH/SCREEN_HEIGHT,NEAR = 0.1,FAR = 1000;
var light = new THREE.PointLight(0xEEEEEE);
var lightAmb = new THREE.AmbientLight(0x777777);
camera = new THREE.PerspectiveCamera(VIEW_ANGLE,ASPECT,NEAR,FAR);
scene.add(camera);
camera.position.set(-10,30,400);
camera.lookAt(scene.position);
// RENDERER
if (Detector.webgl)
renderer = new THREE.WebGLRenderer({antialias:true});
else
renderer = new THREE.CanvasRenderer();
renderer.setSize(SCREEN_WIDTH,SCREEN_HEIGHT);
container = document.getElementById('ThreeJS');
container.appendChild(renderer.domElement);
// EVENTS
THREEx.WindowResize(renderer,camera);
THREEx.FullScreen.bindKey({charCode :'m'.charCodeAt(0)});
// LIGHTS
light.position.set(20,0,20);
scene.add(light);
scene.add(lightAmb);
// BACKGROUND
var texture = THREE.ImageUtils.loadTexture('images/sky.jpg');
var backgroundMesh = new THREE.Mesh(new THREE.PlaneGeometry(2,2,0),new THREE.MeshBasicMaterial({map:texture}));
backgroundMesh.material.depthTest = false;
backgroundMesh.material.depthWrite = false;
var backgroundScene = new THREE.Scene();
var backgroundCamera = new THREE.Camera();
backgroundScene.add(backgroundCamera);
backgroundScene.add(backgroundMesh);
// FLOOR
var floorTexture = new THREE.ImageUtils.loadTexture('images/checkerboard.jpg');
floorTexture.wrapS = floorTexture.wrapT = THREE.RepeatWrapping;
floorTexture.repeat.set(10,10);
var floorMaterial = new THREE.MeshBasicMaterial({map:floorTexture,side:THREE.DoubleSide,shininess:30});
var floorGeometry = new THREE.PlaneGeometry(1000,1000);
var floor = new THREE.Mesh(floorGeometry,floorMaterial);
floor.position.y = -0.5;
floor.rotation.x = Math.PI/2;
scene.add(floor);
// MESHES WITH ANIMATED TEXTURES!
var attackerTexture = new THREE.ImageUtils.loadTexture('images/kitinalevel2.png');
attack = new TextureAnimator(attackerTexture,2,13,26,25); // texture,#horiz,#vert,#total,duration.
var attackerMaterial = new THREE.MeshBasicMaterial({map:attackerTexture,side:THREE.DoubleSide,transparent:true});
var attackerGeometry = new THREE.PlaneGeometry(50,50,1,1);
var attacker = new THREE.Mesh(attackerGeometry,attackerMaterial);
attacker.position.set(-5,20,350);
scene.add(attacker);
var defenderTexture = new THREE.ImageUtils.loadTexture('images/kitinalevel1.png');
defense = new TextureAnimator(defenderTexture,2,13,26,25); // texture,#horiz,#vert,#total,duration.
var defenderMaterial = new THREE.MeshBasicMaterial({map:defenderTexture,side:THREE.DoubleSide,transparent:true});
var defenderGeometry = new THREE.PlaneGeometry(50,50,1,1);
var defenderx = new THREE.Mesh(defenderGeometry,defenderMaterial);
defenderx.position.set(25,20,350);
scene.add(defenderx);
}
function animate(){
requestAnimationFrame(animate);
render();
update();
}
function update(){
var delta = clock.getDelta();
attack.update(1000 * delta);
defense.update(1000 * delta);
//controls.update();
//stats.update();
}
function render(){
renderer.autoClear = false;
renderer.clear();
renderer.render(scene,camera);
renderer.render(backgroundScene,backgroundCamera);
}
function TextureAnimator(texture,tilesHoriz,tilesVert,numTiles,tileDispDuration){
// note:texture passed by reference,will be updated by the update function.
this.tilesHorizontal = tilesHoriz;
this.tilesVertical = tilesVert;
// how many images does this spritesheet contain?
// usually equals tilesHoriz * tilesVert,but not necessarily,
// if there at blank tiles at the bottom of the spritesheet.
this.numberOfTiles = numTiles;
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.repeat.set(1/this.tilesHorizontal,1/this.tilesVertical);
// how long should each image be displayed?
this.tileDisplayDuration = tileDispDuration;
// how long has the current image been displayed?
this.currentDisplayTime = 0;
// which image is currently being displayed?
this.currentTile = 0;
this.update = function(milliSec){
this.currentDisplayTime += milliSec;
while(this.currentDisplayTime>this.tileDisplayDuration){
this.currentDisplayTime-=this.tileDisplayDuration;
this.currentTile++;
if (this.currentTile == this.numberOfTiles)
this.currentTile = 0;
var currentColumn = this.currentTile%this.tilesHorizontal;
texture.offset.x = currentColumn/this.tilesHorizontal;
var currentRow = Math.floor(this.currentTile/this.tilesHorizontal);
texture.offset.y = currentRow/this.tilesVertical;
}
};
}
</script>
我在做什麼錯？
在此先感謝。