SET CAMERA ASPECT This command will adjust the aspect ratio at which the camera renders to the screen.
Syntax
    SET CAMERA ASPECT  Aspect Ratio
    SET CAMERA ASPECT Camera Number, Aspect Ratio
Parameters
    Camera Number
Integer The camera number
    Aspect Ratio
Float By default this aspect ratio is calculated by dividing the screen width by the screen height, normally resulting in an aspect ratio of 0.75
Returns
This command does not return a value.
Description
By default this aspect ratio is calculated by dividing the screen width by the screen height, normally resulting in an aspect ratio of 0.75. You can change this aspect ratio using this command in situations where you would like to render a perfect square to the screen or if you are writing for hardware that spans a single surface over multiple display devices.
Example Code
    autocam on:backdrop on

    make matrix 1,4000,4000,100,100

    set matrix height 1,50,50,500

    update matrix 1

    position camera 0,0,500,500

    point camera 0,2000,0,2000

    aspect=screen width()/screen height()

    while mouseclick()<>1

    set cursor 0,0

    print "f-v Aspect Ratio ",aspect

    if inkey$()="f" then aspect=aspect-1:if aspect<0 then aspect=0

    if inkey$()="v" then aspect=aspect+1

    set camera aspect  0,aspect

    endwhile

    while mouseclick()=1 : endwhile

    delete matrix 1:autocam off:backdrop off

    end
See also
CAMERA Commands Menu Index