Class: Box

立方体，通常用来创建立方体或者不规则四边形。

代码示例：

const boxGeometry - new Box(renderer);

const box = new Mesh(renderer, { geometry: boxGeometry, program });
scene.add(box);

Hierarchy

• Geometry

  ↳ Box

Constructors

constructor

• new Box(renderer, «destructured»?): Box

Parameters

Name	Type	Description
renderer	Renderer	渲染器
«destructured»	Partial<BoxOptions>	-

Returns

Box

Overrides

Geometry.constructor

Defined in

src/geometries/Box.ts:65

Properties

renderer

• renderer: Renderer

Inherited from

Geometry.renderer

Defined in

src/core/Base.ts:7

---

drawRange

• drawRange: any

Inherited from

Geometry.drawRange

Defined in

src/core/Geometry.ts:53

---

instancedCount

• instancedCount: number

Inherited from

Geometry.instancedCount

Defined in

src/core/Geometry.ts:55

---

isInstanced

• isInstanced: boolean

Inherited from

Geometry.isInstanced

Defined in

src/core/Geometry.ts:57

---

drawMode

• drawMode: number

Inherited from

Geometry.drawMode

Defined in

src/core/Geometry.ts:59

Accessors

gl

• get gl(): WebGLRenderingContext | WebGL2RenderingContext

获取 webgl 实例

Returns

WebGLRenderingContext | WebGL2RenderingContext

Inherited from

Geometry.gl

Defined in

src/core/Base.ts:16

---

rendererState

• get rendererState(): State

获取渲染状态

Returns

State

Inherited from

Geometry.rendererState

Defined in

src/core/Base.ts:23

---

id

• get id(): string

获取当前几何体数据的唯一标识

Returns

string

Inherited from

Geometry.id

Defined in

src/core/Geometry.ts:105

---

attributes

• get attributes(): Map<string, BufferAttribute>

获取全部的属性信息

Returns

Map<string, BufferAttribute>

Inherited from

Geometry.attributes

Defined in

src/core/Geometry.ts:112

---

attributesData

• get attributesData(): Attributes

获取属性数据

Returns

Attributes

Inherited from

Geometry.attributesData

Defined in

src/core/Geometry.ts:119

---

index

• get index(): undefined | BufferAttribute

获取顶点索引属性

Returns

undefined | BufferAttribute

Inherited from

Geometry.index

Defined in

src/core/Geometry.ts:136

---

bounds

• get bounds(): any

获取当前几何体的包围盒

Returns

any

Inherited from

Geometry.bounds

Defined in

src/core/Geometry.ts:143

• set bounds(bounds): void

手动设置包围盒，一般我们只需要内部计算

Parameters

Name	Type
bounds	any

Returns

void

Inherited from

Geometry.bounds

Defined in

src/core/Geometry.ts:151

Methods

addAttribute

▸ addAttribute(name, attribute): void

添加对应的属性信息（顶点数据）

Parameters

Name	Type
name	string
attribute	BufferAttribute

Returns

void

Inherited from

Geometry.addAttribute

Defined in

src/core/Geometry.ts:160

---

getAttribute

▸ getAttribute(name): undefined | BufferAttribute

获取对应的属性信息（顶点数据）

Parameters

Name	Type
name	any

Returns

undefined | BufferAttribute

Inherited from

Geometry.getAttribute

Defined in

src/core/Geometry.ts:191

---

setAttributeData

▸ setAttributeData(name, data): void

设置对应的属性数据

Parameters

Name	Type
name	any
data	any

Returns

void

Inherited from

Geometry.setAttributeData

Defined in

src/core/Geometry.ts:200

---

updateAttribute

▸ updateAttribute(attribute): void

更新顶点属性数据

Parameters

Name	Type
attribute	any

Returns

void

Inherited from

Geometry.updateAttribute

Defined in

src/core/Geometry.ts:212

---

removeAttribute

▸ removeAttribute(attribute): void

移除属性信息

Parameters

Name	Type
attribute	any

Returns

void

Inherited from

Geometry.removeAttribute

Defined in

src/core/Geometry.ts:235

---

setIndex

▸ setIndex(index): void

设置顶点索引数据

Parameters

Name	Type
index	any

Returns

void

Inherited from

Geometry.setIndex

Defined in

src/core/Geometry.ts:243

---

setVertices

▸ setVertices(data): void

设置顶点数据

Parameters

Name	Type
data	any

Returns

void

Inherited from

Geometry.setVertices

Defined in

src/core/Geometry.ts:262

---

setNormals

▸ setNormals(data): void

设置顶点法向量数据

Parameters

Name	Type
data	any

Returns

void

Inherited from

Geometry.setNormals

Defined in

src/core/Geometry.ts:282

---

setUVs

▸ setUVs(data): void

设置纹理 UV 数据

Parameters

Name	Type
data	any

Returns

void

Inherited from

Geometry.setUVs

Defined in

src/core/Geometry.ts:296

---

setColors

▸ setColors(colors): void

设置顶点颜色数据

Parameters

Name	Type
colors	(Float32Array | Float64Array | number[] | Vector3 | Vector4)[]

Returns

void

Inherited from

Geometry.setColors

Defined in

src/core/Geometry.ts:310

---

setDrawRange

▸ setDrawRange(start, count): void

设置顶点渲染的开始索引和数量

Parameters

Name	Type	Description
start	number	开始索引
count	number	数量

Returns

void

Inherited from

Geometry.setDrawRange

Defined in

src/core/Geometry.ts:333

---

setInstancedCount

▸ setInstancedCount(count): void

设置实例化渲染的数量

Parameters

Name	Type	Description
count	number	数量

Returns

void

Inherited from

Geometry.setInstancedCount

Defined in

src/core/Geometry.ts:342

---

createVAO

▸ createVAO(program): void

创建 Vao

Parameters

Name	Type
program	Program

Returns

void

Inherited from

Geometry.createVAO

Defined in

src/core/Geometry.ts:350

---

bindAttributes

▸ bindAttributes(program): void

绑定顶点属性数据 https://devdocs.io/dom/webgl2renderingcontext/vertexattribipointer

Parameters

Name	Type
program	Program

Returns

void

Inherited from

Geometry.bindAttributes

Defined in

src/core/Geometry.ts:363

---

computeBoundingBox

▸ computeBoundingBox(vertices?): any

计算当前几何体的的矩形边界（立方体包围盒）

Parameters

Name	Type	Description
vertices?	number[] | DataType	外部传入的顶点数据

Returns

any

Inherited from

Geometry.computeBoundingBox

Defined in

src/core/Geometry.ts:402

---

computeBoundingSphere

▸ computeBoundingSphere(vertices?): void

计算当前几何体的的球形边界（球形包围盒）

Parameters

Name	Type	Description
vertices?	number[] | DataType	外部传入的顶点数据

Returns

void

Inherited from

Geometry.computeBoundingSphere

Defined in

src/core/Geometry.ts:437

---

draw

▸ draw(program, drawMode?): void

执行绘制

Parameters

Name	Type	Description
program	any	Program 对象
drawMode	number	绘制模式

Returns

void

Inherited from

Geometry.draw

Defined in

src/core/Geometry.ts:458

---

copy

▸ copy(source): Box

将传入的几何体对象的属性值拷贝到此对象

Parameters

Name	Type	Description
source	Geometry	源几何体对象

Returns

Box

Inherited from

Geometry.copy

Defined in

src/core/Geometry.ts:502

---

clone

▸ clone(): Geometry

克隆此几何体对象

Returns

Geometry

Inherited from

Geometry.clone

Defined in

src/core/Geometry.ts:540

---

destroy

▸ destroy(): void

销毁几何体对象

Returns

void

Inherited from

Geometry.destroy

Defined in

src/core/Geometry.ts:549