Class WebGLArrayBuf

Represents a WebGL ArrayBuffer.

Constructors

constructor

Properties

allocated dataLength gl handle isInteger itemByteSize itemSize itemType length normalized numItems offset stride type usage

Methods

_allocate bind destroy setData unbind

Constructors

constructor

  • new WebGLArrayBuf(
        gl: WebGL2RenderingContext,
        type: any,
        data: any,
        numItems: number,
        itemSize: number,
        usage: number,
        normalized?: boolean,
        stride?: number,
        offset?: number,
    ): WebGLArrayBuf

    Creates a WebGL ArrayBuffer.

    Parameters

    • gl: WebGL2RenderingContext
    • type: any
    • data: any
    • numItems: number
    • itemSize: number
    • usage: number
    • Optionalnormalized: boolean
    • Optionalstride: number
    • Optionaloffset: number

    Returns WebGLArrayBuf

Properties

allocated

allocated: boolean

Allocated yet?

dataLength

dataLength: number

gl

gl: WebGL2RenderingContext

WebGL2 rendering context.

handle

handle: WebGLBuffer

Hand to a WebGLBuffer.

isInteger

isInteger: boolean

True if the values are integers. Used to select vertexAttribIPointer vs vertexAttribPointer.

itemByteSize

itemByteSize: number

Byte size of each item.

itemSize

itemSize: number

Size of each item.

itemType

itemType: number

The ArrayBuffer's item type.

length

length: number

The ArrayBuffer type.

normalized

normalized: boolean

True when ArrayBuffer values are normalized.

numItems

numItems: number

Number of items in the ArrayBuffer.

offset

offset: number

stride

stride: number

The ArrayBuffer stride.

type

type: any

The ArrayBuffer type.

usage

usage: number

A GLenum specifying the intended usage pattern of the data store for optimization purposes. Possible values:

  • gl.STATIC_DRAW : The contents are intended to be specified once by the application, and used many times as the source for WebGL drawing and image specification commands.
  • gl.DYNAMIC_DRAW : The contents are intended to be respecified repeatedly by the application, and used many times as the source for WebGL drawing and image specification commands.
  • gl.STREAM_DRAW : The contents are intended to be specified once by the application, and used at most a few times as the source for WebGL drawing and image specification commands.
  • gl.STATIC_READ : The contents are intended to be specified once by reading data from WebGL, and queried many times by the application.
  • gl.DYNAMIC_READ : The contents are intended to be respecified repeatedly by reading data from WebGL, and queried many times by the application.
  • gl.STREAM_READ : The contents are intended to be specified once by reading data from WebGL, and queried at most a few times by the application
  • gl.STATIC_COPY : The contents are intended to be specified once by reading data from WebGL, and used many times as the source for WebGL drawing and image specification commands.
  • gl.DYNAMIC_COPY : The contents are intended to be respecified repeatedly by reading data from WebGL, and used many times as the source for WebGL drawing and image specification commands.
  • gl.STREAM_COPY : The contents are intended to be specified once by reading data from WebGL, and used at most a few times as the source for WebGL drawing and image specification commands.

Methods

_allocate

bind

destroy

setData

unbind

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