freechat/freechat-client/share/kivy-examples/kv/app_camera.kv

Camera:
    canvas:
        Color:
            rgb: (1, 1, 1)
        Rectangle:
            texture: self.texture
            size: (320, 240)
        Color:
            rgb: (0.5, 0, 1)
        Rectangle:
            texture: self.texture
            pos: (320, 0)
            size: (320, 240)
        Color:
            rgb: (0, 1, 0)
        Rectangle:
            texture: self.texture
            pos: (320, 240)
            size: (320, 240)
        Color:
            rgb: (1, 0, 0)
        Rectangle:
            texture: self.texture
            pos: (0, 240)
            size: (320, 240)