Apparatus and method for parallel rendering of image pixels

摘要

A two-dimensional image coordinate system is divided into areas each composed of N pixels in a first direction and M pixels in a second direction perpendicular to the first direction. Variations of rendering data for pixels are calculated with respect to the first and second directions and are used for interpolating values of the rendering data for each pixel from predetermined apex data of a predetermined graphic. An initial value of the rendering data on the side of the predetermined graphic is calculated using the value of a predetermined apex and the variation of the rendering data with respect to the first direction. First NxM rendering data is calculated using the initial value and the variations of the rendering data. Other NxM rendering data is calculated based on the variations of the rendering data with respect to the first direction and the second direction.