Errata from first printing

page 74 Change 0.0 in glClear to 1.0
page 109 Change 0.0 in glClear to 1.0
page 111 Change 0.0 in glClear to 1.0
page 125 glClearColor(1.0, 1.0, 1.0, 1.0);
page 145 line 7: A to the head of C
page 174 swap vertices 5 and 7 in the vertices array
page 209: remove second r in last term of first equation
page 209: equation for ab, change p x q to q x p
page 210: remove last term in equation for p' in middle of page (it's zero)
page 288: Figure 6.28 is missing
page 307: change Glubyte to GLubyte twice
page 308: change Glubyte to GLubyte
page 517: second equation. change b^Td to b^Tp_0
page 517: third equation, change -b to +b
page 564: Figure 12.4: the "+1" terms are part of subscripts
page 576: Figure 12.20: Case 6 should have a triangle on upper right corner
page 603: quadratic equation, second term: move t to front of d, third
term should have a t in front of each d
pages 652, 653, 655, 657: remove lines with glNormal