A method for providing a three dimensional (3D) drawing experience. The method includes capturing a 3D image of a participant and then processing this image to key the participant's image from a background. The keyed participant's image is mixed with a 3D background image such as frames or scenes from a 3D movie, and the mixed 3D image is projected on a projection screen. For example, left and right eye images may be projected from a pair of projectors with polarization films over the lenses, and the projection screen may be a polarization-maintaining surface such as a silver screen. The user moves a drawing instrument in space in front of the projection screen, and spatial tracking performed to generate a locus of 3D positions. These 3D positions are used to create a 3D drawing image that is projected with the 3D background and participant images in real time.