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- # an octagonal ball visible from the outside, 1000x1000
- octball 32 26
-
- # vertices:
- # X Y Z
- # front middle ring
- -190 -460 -190 # vertex 0
- 190 -460 -190 # vertex 1
- 460 -190 -190 # vertex 2
- 460 190 -190 # vertex 3
- 190 460 -190 # vertex 4
- -190 460 -190 # vertex 5
- -460 190 -190 # vertex 6
- -460 -190 -190 # vertex 7
-
- # rear middle ring
- -190 -460 190 # vertex 8
- 190 -460 190 # vertex 9
- 460 -190 190 # vertex 10
- 460 190 190 # vertex 11
- 190 460 190 # vertex 12
- -190 460 190 # vertex 13
- -460 190 190 # vertex 14
- -460 -190 190 # vertex 15
-
- # front face
- -85 -192 -460 # vertex 16
- 85 -192 -460 # vertex 17
- 192 -85 -460 # vertex 18
- 192 85 -460 # vertex 19
- 85 192 -460 # vertex 20
- -85 192 -460 # vertex 21
- -192 85 -460 # vertex 22
- -192 -85 -460 # vertex 23
-
- # back face
- -85 -192 460 # vertex 24
- 85 -192 460 # vertex 25
- 192 -85 460 # vertex 26
- 192 85 460 # vertex 27
- 85 192 460 # vertex 28
- -85 192 460 # vertex 29
- -192 85 460 # vertex 30
- -192 -85 460 # vertex 31
-
- # polygons: all cosine-lit, assorted colors
- # color #verts vert1 vert2 ...
-
- 0x11ff 8 16 17 18 19 20 21 22 23 # front face: counterclockwise
- 0x12ff 8 31 30 29 28 27 26 25 24 # back face: clockwise
-
- # middle ring of polys: same as the octagonal cylinder
- # these faces are facing us in the sketch, thus are CCW
- 0x13ff 4 5 4 12 13 # top
- 0x14ff 4 4 3 11 12
- 0x15ff 4 3 2 10 11 # right side
- 0x16ff 4 2 1 9 10
-
- # these faces are away from us in the sketch, and thus CW
- 0x17ff 4 8 9 1 0 # bottom
- 0x18ff 4 15 8 0 7
- 0x19ff 4 14 15 7 6 # left side
- 0x1aff 4 13 14 6 5
-
- # Now we need to create the end poly rings. We can simply use
- # the polys above, changing the vertex numbers because we kept
- # the rings of vertexes together
-
- # frontmost ring: vertices 0..7 -> 16..23, 8..15 -> 0..7
- 0x13ff 4 21 20 4 5 # top
- 0x14ff 4 20 19 3 4
- 0x15ff 4 19 18 2 3 # right side
- 0x16ff 4 18 17 1 2
- 0x17ff 4 0 1 17 16 # bottom
- 0x18ff 4 7 0 16 23
- 0x19ff 4 6 7 23 22 # left side
- 0x1aff 4 5 6 22 21
-
- # rearmost ring: vertices 8..15 -> 24..31, 0..7 -> 8..15
- 0x13ff 4 13 12 28 29 # top
- 0x14ff 4 12 11 27 28
- 0x15ff 4 11 10 26 27 # right side
- 0x16ff 4 10 9 25 26
- 0x17ff 4 24 25 9 8 # bottom
- 0x18ff 4 31 24 8 15
- 0x19ff 4 30 31 15 14 # left side
- 0x1aff 4 29 30 14 13
-
-