Patent Document ID: 8903534
Application ID: 14076344
Patent Status: 1

Claim One:
1. A method for producing a three-dimensional structure from a digital model, comprising: determining a plurality of two-dimensional layers in response to the digital model; rendering an image corresponding to a set of the layers on a plurality of sheets of at least partially transparent material; and assembling the plurality of sheets of material together to produce a three-dimensional structure corresponding to the digital model, wherein the step of determining a plurality of two-dimensional layers comprises, for each layer in the set of layers: determining vectors corresponding to pixels of the layer; determining, for each of at least a plurality of the pixels, a ray having an origin at one of the plurality of the pixels and a direction parallel to one of the vectors corresponding to the one of the plurality of the pixels; determining intersections of the rays with a surface of the digital model; and determining colors of the surface of the digital model at the intersections.