189

Building shapes out of points, lines, and faces
Using face set coordinate index lists

  • A triangle is drawn connecting sequences of coordinate indexes
  • -1 marks a break in the sequence

  • Each face is automatically closed, connecting the last index back to the first
  • coordIndex [ 1, 0, 3, 8, -1, 5, 9, 0 ]
    1, 0, 3, 8 Draw face from 1 to 0 to 3 to 8 to 1
    -1, End face, start next
    5, 9, 0 Draw face from 5 to 9 to 0 to 5