Class RenderTargetAbstract

constructor

• new RenderTarget(): RenderTarget

  Returns RenderTarget

height

width

bind

• bind(): void

  Bind this render target as the active draw destination. All subsequent draw calls will render into this target until unbind is called. No-op by default — subclasses override for GPU render targets (e.g. WebGL FBOs).

  Returns void

Abstractclear

• clear(): void

  Clear the render target contents.

  Returns void

Abstractdestroy

• destroy(): void

  Release all resources held by this render target. The target must not be used after calling destroy.

  Returns void

AbstractgetImageData

• getImageData(x?: number, y?: number, width?: number, height?: number): ImageData

  Read back pixel data from this render target.

  Parameters

  • Optionalx: number

    x coordinate of the top-left corner (default 0)

  • Optionaly: number

    y coordinate of the top-left corner (default 0)

  • Optionalwidth: number

    width of the area to read (default full width)

  • Optionalheight: number

    height of the area to read (default full height)

  Returns ImageData

  an ImageData object containing the pixel data

Abstractresize

• resize(width: number, height: number): void

  Resize the render target's backing storage to the given dimensions.

  Parameters

  • width: number

    new width in pixels

  • height: number

    new height in pixels

  Returns void

toBlob

• toBlob(type?: string, quality?: number): Promise<Blob>

  Creates a Blob object representing the image contained in this render target.

  Parameters

  • type: string = "image/png"

    a string indicating the image format (default "image/png")

  • Optionalquality: number

    a number between 0 and 1 for lossy formats (e.g. image/jpeg)

  Returns Promise<Blob>

  a Promise resolving to a Blob

toDataURL

• toDataURL(type?: string, quality?: number): Promise<string>

  Returns a data URL containing a representation of the current contents.

  Parameters

  • type: string = "image/png"

    a string indicating the image format (default "image/png")

  • Optionalquality: number

    a number between 0 and 1 for lossy formats (e.g. image/jpeg)

  Returns Promise<string>

  a Promise resolving to a data URL string

toImageBitmap

• toImageBitmap(): Promise<ImageBitmap>

  Creates an ImageBitmap object from the current contents of this render target.

  Returns Promise<ImageBitmap>

  a Promise resolving to an ImageBitmap

unbind

• unbind(): void

  Unbind this render target, restoring the default (screen) output. No-op by default — subclasses override for GPU render targets.

  Returns void