Adobe, Inc.

Brice W Tebbs

Glenn Gregory Gilley

David R Lazarony, Jr

Wei Huang

Grace Ge

Method and apparatus rendering a two-dimensional resolution-dependent raster image as applied to a three-dimensional surface modeled object. The rendering may be performed by digital electronics, a programmed computer processor, or a combination of them. Rendering includes mapping the 2-D raster image to a portion of a 2-D parametric map of a 3-D object, rendering the 3-D object as a 2-D vector resolution-independent output, and mapping the mapped raster image from the 2-D parametric map to a 2-D output space. Embodiments may include one or more of the following features. The raster and vector output is mapped to a 2-D display space. A clipping path is established for the raster image and mapped to the 2-D parametric map and to the 2-D display space. The raster image is edited and masked while displayed on a display of the 2-D parametric map. The vector output and raster output are integrated to generate a final output including both vector and raster data. The final output is sent to a printing device and rasterized by the printing device.

Raster image mapping

A method for rendering a graphics image of a three-dimensional graphics model is described. The method consists of the steps of projecting a parametric surface representation of the three-dimensional graphics model into a two-dimensional parametric space; mapping an array of grid points onto the parametric space; evaluating a shading function at each grid point to form an array shading values; applying a contouring function to the array of shading values to determine boundary curves for regions of constant shading; applying a silhouette function to the parametric surface representation of the three-dimensional graphics model to determine the boundaries for regions of consistent-facing; clipping the regions of constant shading by the regions of consistent-facing to determine consistent-facing regions of constant color; mapping the regions of constant shading back to the surface of the three-dimensional model; occluding hidden surfaces; mapping the clipped regions of constant shading to display space; and filling the regions of constant shading in display space. The regions of constant shading are available for editing by a two-dimensional drawing package.

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Chapel Hill, NC, United States of America

Brice W Tebbs