ImageBitmapRenderingContext.transferFromImageBitmap() method displays the given
ImageBitmap in the canvas associated with this rendering context. The ownership of the
ImageBitmap is transferred to the canvas as well.
This method was previously named
transferImageBitmap(), but was renamed in a spec change. The old name is being kept as an alias to avoid code breakage.
ImageBitmapobject to transfer.
var htmlCanvas = document.getElementById("htmlCanvas").getContext("bitmaprenderer"); // Draw a WebGL scene offscreen var offscreen = new OffscreenCanvas(256, 256); var gl = offscreen.getContext("webgl"); // ... some drawing using the gl context ... // Transfer the current frame to the visible canvas var bitmap = offscreen.transferToImageBitmap(); htmlCanvas.transferFromImageBitmap(bitmap);
Currently drafted as a proposal: OffscreenCanvas.