Industrial Technology Research Institute

Yea-Yun Yang

Wei-Kuo Chia

Won-Yih Lin

Wen-Zen Shen

Shu-Fang Hwang

Chong-Ching Chen

Chi-Chih Lee

A method for drawing a 3D triangle includes decomposing polygons into triangles. The triangles are then truncated into trapezoids, so that they may be drawn in the same direction, such as always top to bottom and left to right. The Z error values are determined for each trapezoid. This allows initial Z values to be correct. The ERROR values may be determined for other triangle attributes such as color, translucence, and texture.

Method for rendering 3D triangle primitives

A modified three-pixel antialiasing method wherein the closest pixel from a displayed line has a constant display intensity includes the steps of locating a first pixel having a shortest distance along an axis of the pixel matrix array from the line, determining the shortest distance, calculating pixel intensity for the first pixel by multiplying a maximum intensity of the first pixel with a constant value, locating a second pixel having a second shortest distance along the axis from the line, locating a third pixel having a third shortest distance along the axis from the line, calculating pixel intensity for the second pixel, and calculating pixel intensity for the third pixel.

Method for antialiasing

Growing community of inventors

Miauli, Taiwan

Yea-Yun Yang