Abstract: The final viewable color of each pixel to be displayed from video data signal output of a computer image generator, is found by: using input data signals setting display space coordinates of each vertex of each face polygon to be displayed, to generate a crossing location of each polygon edge along an edge segment of any of the array of display pixels; storing, and then processing, the edge segment crossing data signals for all polygons affecting that pixel, along with color data for each of the faces occupying any portion of that pixel, and for a plurality of different edge segments of a constellation of four adjacent pixels, to obtain pixel color intensity data for each corner of each displayable pixel; and mixing polygon color intensity data signals for all corners of a presently-processed pixel, to determine the final, observable color of that display pixel.