web api instance method

WebGL2RenderingContext: blitFramebuffer() method

Available in workers

The WebGL2RenderingContext.blitFramebuffer() method of the WebGL 2 API transfers a block of pixels from the read framebuffer to the draw framebuffer. Read and draw framebuffers are bound using bindFramebuffer().

Syntax

blitFramebuffer(srcX0, srcY0, srcX1, srcY1,
                dstX0, dstY0, dstX1, dstY1,
                mask, filter)

Parameters

srcX0, srcY0, srcX1, srcY1
- : A GLint specifying the bounds of the source rectangle.
dstX0, dstY0, dstX1, dstY1
- : A GLint specifying the bounds of the destination rectangle.
mask
- : A GLbitfield specifying a bitwise OR mask indicating which buffers are to be copied. Possible values:
  - gl.COLOR_BUFFER_BIT
  - gl.DEPTH_BUFFER_BIT
  - gl.STENCIL_BUFFER_BIT
filter
- : A GLenum specifying the interpolation to be applied if the image is stretched. Possible values:
  - gl.NEAREST
  - gl.LINEAR

Return value

None (undefined).

Examples

gl.blitFramebuffer(
  0,
  0,
  canvas.width,
  canvas.height,
  0,
  0,
  canvas.width,
  canvas.height,
  gl.COLOR_BUFFER_BIT,
  gl.NEAREST,
);

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.