Function render

pattern/canvas.js:3038–3045

(callback, width, height)

});

function render(callback, width, height) {
    /* Returns an Image object from a function containing drawing commands (i.e. a procedural image).
     * This is useful when, for example, you need to render filters on paths.
     */
    var buffer = new OffscreenBuffer(width, height);
    buffer.draw = callback;
    return buffer.render();
}

function filter(img, callback) {
    /* Returns a new Image object with the given pixel function applied to it.