Controls
                    Desktop: Left-click + drag to rotate, scroll to zoom,
                    right-click + drag to pan.
                    
                    Touch: One finger drag to rotate, pinch to zoom, two finger drag to pan.
                    
                    
                    Description
                    This is a WebGL implementation of a standard 
volume raycaster
                    which uses a single render-pass to raycast the volume. The sampling rate is dynamically
                    adjusted to maintain an interactive framerate across different devices (desktops, laptops, phones).
                    
                        Get the code on GitHub!