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

  • A line is drawn between pairs of coordinate indexes
  • -1 marks a break in the line

  • A line is not automatically drawn from the last index back to the first
  • coordIndex [ 1, 0, 3, 8, -1, 5, 9, 0 ]
    1, 0, 3, 8, Draw line from 1 to 0 to 3 to 8
    -1, End line, start next
    5, 9, 0 Draw line from 5 to 9 to 0