Patent ID: 6867776

Claim:
A method for generating images comprising the steps of: introducing information into a computer from which the images are produced; producing the images with texture that do not have visible grid artifacts with the computer using a bit-manipulation to generate a six bit quantity from an integer lattice point i,j,k, where the six bit quantity is defined as a lower six bits of a sum: b(i,j,k,0)+b(j,k,i,1)+b(k,i,j,2)+b(i,j,k3)+b(j,k,i,4)+b(k,i,j,5)+b(i,j,k,6)+b(j,k,i,7) define b(i,j,k,B); patternIndex=4*bit B ( i )+2*bit B ( j )+bit B ( k ) return bitPatterns[patternIndex] where B is 0 or a positive integer; generating a gradient direction using the six bit quantity; and displaying the images on a display.