METHOD AND COMPUTING DEVICE FOR GENERATING A 3D BODY

摘要

For generating a 3D body which is configured to cast in different directions shadows representing different images, at least two binary images are provided (ST1 ) in a computer. For each of the binary images, determined (ST2) in the computer is a shadow projection directed from a different source in a different one of the directions. A 3D shadow hull (H) is determined (ST3) by the computer by intersecting the shadow projections associated with each of the binary images. Based on the 3D shadow hull, geometric data defining the 3D body is generated (ST6) by the computer. Defining the 3D body based on intersecting shadow projections makes it possible for a user to generate efficiently a customized 3D body by simply selecting two or more binary images that define the desired shadow and specifying the spatial arrangement of light sources.