WebGL2RenderingContext: blitFramebuffer() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
Note: This feature is available in Web 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 WebGLRenderingContext.bindFramebuffer().
Syntax
blitFramebuffer(srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1,
mask, filter)
Parameters
srcX0,srcY0,srcX1,srcY1-
A
GLintspecifying the bounds of the source rectangle. dstX0,dstY0,dstX1,dstY1-
A
GLintspecifying the bounds of the destination rectangle. mask-
A
GLbitfieldspecifying a bitwise OR mask indicating which buffers are to be copied. Possible values:gl.COLOR_BUFFER_BITgl.DEPTH_BUFFER_BITgl.STENCIL_BUFFER_BIT
filter-
A
GLenumspecifying the interpolation to be applied if the image is stretched. Possible values:gl.NEARESTgl.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
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.4 |
Browser compatibility
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