本文整理汇总了TypeScript中THREE.BufferGeometry.setIndex方法的典型用法代码示例。如果您正苦于以下问题：TypeScript BufferGeometry.setIndex方法的具体用法？TypeScript BufferGeometry.setIndex怎么用？TypeScript BufferGeometry.setIndex使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类THREE.BufferGeometry的用法示例。
在下文中一共展示了BufferGeometry.setIndex方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: _getImageSphereGeo
private _getImageSphereGeo(transform: Transform, node: Node): THREE.BufferGeometry {
let t: THREE.Matrix4 = new THREE.Matrix4().getInverse(transform.srt);
// push everything at least 5 meters in front of the camera
let minZ: number = 5.0 * transform.scale;
let maxZ: number = this._imageSphereRadius * transform.scale;
let vertices: number[] = node.mesh.vertices;
let numVertices: number = vertices.length / 3;
let positions: Float32Array = new Float32Array(vertices.length);
for (let i: number = 0; i < numVertices; ++i) {
let index: number = 3 * i;
let x: number = vertices[index + 0];
let y: number = vertices[index + 1];
let z: number = vertices[index + 2];
let l: number = Math.sqrt(x * x + y * y + z * z);
let boundedL: number = Math.max(minZ, Math.min(l, maxZ));
let factor: number = boundedL / l;
let p: THREE.Vector3 = new THREE.Vector3(x * factor, y * factor, z * factor);
p.applyMatrix4(t);
positions[index + 0] = p.x;
positions[index + 1] = p.y;
positions[index + 2] = p.z;
}
let faces: number[] = node.mesh.faces;
let indices: Uint16Array = new Uint16Array(faces.length);
for (let i: number = 0; i < faces.length; ++i) {
indices[i] = faces[i];
}
let geometry: THREE.BufferGeometry = new THREE.BufferGeometry();
geometry.addAttribute("position", new THREE.BufferAttribute(positions, 3));
geometry.setIndex(new THREE.BufferAttribute(indices, 1));
return geometry;
}示例2: _getFlatImagePlaneGeo
private _getFlatImagePlaneGeo(transform: Transform): THREE.BufferGeometry {
let width: number = transform.width;
let height: number = transform.height;
let size: number = Math.max(width, height);
let dx: number = width / 2.0 / size;
let dy: number = height / 2.0 / size;
let vertices: THREE.Vector3[] = [];
vertices.push(transform.pixelToVertex(-dx, -dy, this._imagePlaneDepth));
vertices.push(transform.pixelToVertex( dx, -dy, this._imagePlaneDepth));
vertices.push(transform.pixelToVertex( dx, dy, this._imagePlaneDepth));
vertices.push(transform.pixelToVertex(-dx, dy, this._imagePlaneDepth));
let positions: Float32Array = new Float32Array(12);
for (let i: number = 0; i < vertices.length; i++) {
let index: number = 3 * i;
positions[index + 0] = vertices[i].x;
positions[index + 1] = vertices[i].y;
positions[index + 2] = vertices[i].z;
}
let indices: Uint16Array = new Uint16Array(6);
indices[0] = 0;
indices[1] = 1;
indices[2] = 3;
indices[3] = 1;
indices[4] = 2;
indices[5] = 3;
let geometry: THREE.BufferGeometry = new THREE.BufferGeometry();
geometry.addAttribute("position", new THREE.BufferAttribute(positions, 3));
geometry.setIndex(new THREE.BufferAttribute(indices, 1));
return geometry;
}