This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WebGL2RenderingContext.blitFramebuffer()
method of the WebGL 2 API transfers a block of pixels from the read framebuffer to the draw framebuffer.
Syntax
void gl.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.
Examples
gl.blitFramebuffer(0, 0, canvas.width, canvas.height, 0, 0, canvas.width, canvas.height, gl.COLOR_BUFFER_BIT, gl.NEAREST);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 2.0 The definition of 'blitFramebuffer' in that specification. |
Editor's Draft | Initial definition for WebGL. |
OpenGL ES 3.0 The definition of 'glBlitFramebuffer' in that specification. |
Standard | Man page of the (similar) OpenGL API. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
blitFramebuffer | Chrome Full support 56 | Edge Full support 79 | Firefox Full support 51 | IE No support No | Opera Full support 43 | Safari No support No | WebView Android Full support 58 | Chrome Android Full support 58 | Firefox Android Full support 51 | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support