ASCII | 'M' |
Hexadecimal | 0x4D |
Decimal | 77 |
Byte suboptions, int rows, int columns, variable points, [variable attributes]
suboptions | information about formatting. Uses a subset of the bits defined in TKE_Shell |
rows | the number of rows of vertices in the mesh |
columns | the number of columns of vertices in the mesh |
points | the vertex locations |
attributes | polyhedron attributes bound to faces, edges or vertices. Present if and only if suboptions has the TKSH_HAS_OPTIONALS bit set. See attributes.html for details. |
As mentioned above, TKE_Mesh suboption share a definition with TKE_Shell, and use a subset of its suboptions bits. The following bits are relevant here:
0x01 | TKSH_COMPRESSED_POINTS -- Points are compressed |
0x08 | TKSH_HAS_OPTIONALS -- Vertices, edges and/or faces have attributes, and the attributes section of the format exists. See attributes.html |
0x80 | TKSH_EXPANDED -- Suboptions2 currently has no bits relevant to TKE_Mesh, so this bit will not be set (and thus there is currently no suboptions2) |
A mesh is a rectangular array of faces with implicit regular connectivity. The Mesh is inserted into the currently opened segment.
As in TKE_Shell, points are either compressed or uncompressed vertex data. Compression status is dictated by the TKSH_COMPRESSED_POINTS bit in the shell suboptions. If uncompressed, it will consist of triples of 32-bit floating point coordinates in the order xyzxyz... If compressed, it will consist of a compression scheme identifier, followed by data that is specific to that compression scheme. The specifics of the compressed format are described in attributes.html in the "array of compressed floats" section.