A trajectory is drawn on a digital canvas with a pointing device, wherein the trajectory comprises a plurality of spaced points, and each spaced point has a plurality of characteristics, including a geometric profile, a depth, and a color if a color trajectory or an intensity if a monochromatic trajectory. One or more of the plurality of characteristics is adjusted by manually controlling a speed of the drawing, and a faster drawing speed results in spacing between two successive points that is greater than that resulting from a slower speed. A line is generated by interpolating the space between the points. A picture is created with a number of trajectories and/or lines. A three-dimensional image may be created from the picture by creating, then integrating a set of multi-view images from the picture. The picture in progress and/or as completed may be displayed, for example, on a three-dimensional display.