matrixjs-core v1.0.6

const fleatted=array.flat();
let i=0;
test.scan(0, 0, x, y, function (_x:number,_y:number, idx:number) {
   
    bitmap.data[idx + 0] = fleatted[i]
    bitmap.data[idx + 1] = fleatted[i]
    bitmap.data[idx + 2] = fleatted[i]
    bitmap.data[idx + 3] = 255
    i++;
   })
test.writeAsync(path);   

}

init();