相机:
Camera = new THREE.PerspectiveCamera(45, Width / Height, 0.1, 10000);
Camera.position.set( 150, 400, 400);
Scene.add(Camera);
光
Light = new THREE.SpotLight(0xffccff,.5, 0, Math.PI/2, 1);
Light.position.set(0, 2000, 0);
Light.castShadow = true;
Light.shadowBias = -0.0002;
Light.shadowCameraNear = 850;
Light.shadowCameraFar = 8000;
Light.shadowCameraFov = 600;
Light.shadowDarkness = .7;
Light.shadowMapWidth = 2048;
Light.shadowMapHeight = 2048;
Scene.add(Light);
渲染
Renderer = new THREE.WebGLRenderer({
antialias: true,
sortObjects: false,
preserveDrawingBuffer: true,
shadowMapEnabled: true
});
document.body.appendChild(Renderer.domElement);
Renderer.shadowMap.type = THREE.PCFSoftShadowMap;
Renderer.shadowMap.cullFace = THREE.CullFaceBack;
Renderer.gammaInput = true;
Renderer.gammaOutput = true;
Renderer.setSize(window.innerWidth, window.innerHeight);
我使用此功能添加3d模型
function getModel(path,texture) {
var Material = new THREE.MeshPhongMaterial({shading: THREE.SmoothShading,
specular: 0xff9900,
shininess: 0,
side: THREE.DoubleSide,
shading: THREE.SmoothShading
});
Loader = new THREE.JSONLoader();
Loader.load(path,function(geometry){
geometry.mergeVertices();
geometry.computeFaceNormals();
geometry.computeVertexNormals();
TextureLoader.load(texture,function(texture){
Mesh = new THREE.Mesh(geometry, Material);
Mesh.material.map =texture;
Mesh.material.map.wrapS = THREE.RepeatWrapping;
Mesh.material.map.wrapT = THREE.RepeatWrapping;
Mesh.material.map.repeat.set(38,38);
//Mesh.position.y -= 1;
Mesh.position.y = 160;
Mesh.position.x = 0;
Mesh.position.z = 0;
Mesh.scale.set(40,40,40);
Mesh.castShadow = true;
Mesh.receiveShadow = true;
Scene.add(Mesh);
});
});
}
并且要重现阴影的平面是
var planeGeometry = new THREE.PlaneBufferGeometry(100,100);
var planematerial = new THREE.MeshLambertMaterial(
{
shininess: 80,
color: 0xffaaff,
specular: 0xffffff
});
var plane = new THREE.Mesh(planeGeometry,planematerial);
plane.rotation.x = - Math.PI / 2;
plane.position.set(0,100,0);
plane.scale.set( 10, 10, 10 );
plane.receiveShadow = true;
plane.castShadow = true;
Scene.add(plane);
我只是尝试调整灯光的位置并调整了shadowCameraNear,Light.shadowCameraFar和Light.shadowCameraFov的值。但是没有看到任何变化
答案 0 :(得分:1)
相机位于(150,400,400),投影阴影的对象位于(0,160,0),接收阴影的对象位于(0,100,0),并且阴影摄像机角截面设置为在850.也就是说,你的相机分别距离两个遮蔽物体大约200和400个单位,但你在视锥体附近看到的影子距离是850个单位。调整您的定位。你可以设置
Light.shadowCameraVisible = true;
在调试模式下显示相机视锥,以帮助解决。