View.Set ('graphics:720;720,offscreenonly')
const midx := maxx div 2
const midy := maxy div 2
var time_str, title : string
type cart :
record
    m : array 0 .. 720, 0 .. 720 of int2
    x : array 0 .. 720 of int2
    y : array 0 .. 720 of int2
    z : array 0 .. 720 of int2
end record
var x, y, z, win1, win2 : int
var map : array 0 .. 720 of cart
function eta(stepnum : int) : string
    var eta_ms, eta_m, eta_s : int
    var eta_str : string
    eta_ms := round(Time.Elapsed / (((stepnum / 720) * 1000) / 10) * (100 - (((stepnum / 720) * 1000) / 10)))
    eta_m := round(eta_ms / 1000) div 60
    eta_s := round(eta_ms / 1000) mod 60
    eta_str := intstr(eta_m)+':'+intstr(eta_s)
    result eta_str
end eta
win1 := Window.Open ("position:top;right,graphics:720;720,offscreenonly")
win2 := Window.Open ("position:top;left,graphics:300;300")
for q : 1 .. 720
    Window.SetActive(win1)
    cls
    for s : 0 .. midx
        for t : 1 .. midy
            map (q).x (t) := round (cosd (s) * t) + midx
            map (q).y (t) := round (sind (t) * s) + midy
            map (q).z (t) := s
            x := map (q).x (t) - midx
            z := map (q).z (t)
            x := round (cosd (q/2) * x - sind (q/2) * z)
            map (q).x (t) := x + midx
            Draw.Dot(map(q).x(t), map(q).y(t), (s mod t) mod maxcolour)
        end for
    end for
    View.Update
    for i : 0 .. maxx
        for o : 0 .. maxy
            map(q).m(i,o) := whatdotcolour(i,o)
        end for
    end for
    Window.SetActive(win2)
    cls
    Draw.FillArc (150, 150, 100, 100, 90, q div 2 + 90, black)
    locate (1, 1)
    time_str := eta(q)
    put round ((q / 720) * 1000) / 10, '%', ' ', time_str
    title := (realstr (round ((q / 720) * 1000) / 10, 3) + '% complete, ' +  time_str + ' remaining')
    View.Set ('title:Rendering: ' + realstr (round ((q / 720) * 1000) / 10, 3) + '%')
    View.Update
end for
Window.Close(win2)
cls
View.Update
Input.Pause
loop
    for q : 1 .. 720
        for s : 0 .. maxx
            for t : 0 .. maxy
                Draw.Dot (s, t, map(q).m(s,t))
            end for
        end for
            View.Update
    end for
    cls
    Input.Pause
end loop