BACKDROP ON This command will activate a 3D backdrop that fills the visible screen.
Syntax
    BACKDROP ON
    BACKDROP ON Camera Number
Parameters
    Camera Number
Integer The camera number
Returns
This command does not return a value.
Description
The backdrop is automatically activated the first time any 3D object is created or loaded in order to clear the background screen. The backdrop can also be colored, textured and scrolled to create the effects of sky or other background effects. If you wish to set-up the backdrop before creating your objects, use this command to activate it.
Example Code
    autocam on

    make matrix 1,4000,4000,100,100

    set matrix height 1,50,50,500

    update matrix 1

    backdrop on

    color backdrop rgb(128,0,0)

    while inkey$()<>"x"

    set cursor 0,0

    print "angle x:";camera angle x(0)

    print "angle y:";camera angle y(0)

    print "angle z:";camera angle z(0)

    print "position x:";camera position x(0)

    print "position y:";camera position y(0)

    print "position z:";camera position z(0)

    x#=x#+mousemovey() : y#=y#+mousemovex() : rotate camera 0,x#,y#,0

    endwhile

    backdrop off

    delete matrix 1

    autocam off

    end
See also
CAMERA Commands Menu Index