canvasWidth,1,UINT        # Canvas width
canvasHeight,2,UINT       # Canvas heighot
absolute,3,BOOL           # true: absolute size; false: scale to canvas
minBound,4,TRIPLE         # Scene minimum bounding box corners
maxBound,5,TRIPLE         # Scene maximum bounding box corners
orthographic,6,BOOL       # true: orthographic; false: perspective
angleOfView,7,REAL        # Field of view angle (in radians)
initialZoom,8,REAL        # Initial zoom
viewportShift,9,PAIR      # Viewport shift (for perspective projection)
viewportMargin,10,PAIR    # Margin around viewport
light,11,TRIPLE,RGB       # Direction and color of each point light source
background,12,RGBA        # Background color
zoomFactor,13,REAL        # Zoom base factor
zoomPinchFactor,14,REAL   # Zoom pinch factor
zoomPinchCap,15,REAL      # Zoom pinch limit
zoomStep,16,REAL          # Zoom power step
shiftHoldDistance,17,REAL # Shift-mode maximum hold distance (pixels)
shiftWaitTime,18,REAL     # Shift-mode hold time (milliseconds)
vibrateTime,19,REAL       # Shift-mode vibrate time (milliseconds)
