Interesting....

[mrtwosheds]

But how else would any program figure out the numbers and just happen to do it the same as bz2?
They probably look fairly random in a modeling program as it will not be clear how they were created and compiled, but somehow progs like bz2 have to figure it out, they are not actually numbered in an xsi so it must be done in some order, all the xsi tells bz2 is that there are say 76 vertex and then lists them, my guess would be that they are numbered 0 -75 in the order they appear in that file.

[Nielk1]

Here is the one I used to make 2 pincher like things bend:

Code Select Expand

SI_EnvelopeList {
   2;
   SI_Envelope {
      "frm-mainbody";
      "frm-rpinch__h";
      12;
      211;25.0;,
      149;25.0;,
      151;25.0;,
      120;25.0;,
      199;30.0;,
      154;35.0;,
      201;35.0;,
      197;35.0;,
      198;35.0;,
      152;35.0;,
      153;40.0;,
      200;30.0;,
   }
   SI_Envelope {
      "frm-mainbody";
      "frm-lpinch__h";
      14;
      64;25.0;,
      106;25.0;,
      25;25.0;,
      107;25.0;,
      56;30.0;,
      57;35.0;,
      112;35.0;,
      22;35.0;,
      55;35.0;,
      109;35.0;,
      108;37.5;,
      59;40.0;,
      111;40.0;,
      58;30.0;,
   }
}

This might help MrTS:

Code Select Expand

Mesh hp_dummyroot {
8; // 8 vertexes
-0.340000;-0.340000;-0.340000;, // vertex 0
-0.340000;-0.340000;0.340000;, // vertex 1
-0.340000;0.340000;-0.340000;, // vertex 2
-0.340000;0.340000;0.340000;, // vertex 3
0.340000;-0.340000;-0.340000;, // vertex 4
0.340000;-0.340000;0.340000;, // vertex 5
0.340000;0.340000;-0.340000;, // vertex 6
0.340000;0.340000;0.340000;; // vertex 7

12; // 12 polygons
3;0,1,3;, // polygon made with 3 vertexes, 0, 1, and 3
3;3,2,0;, // polygon made with 3 vertexes, 3, 2, and 0
3;1,5,7;, // polygon made with 3 vertexes, 1, 5, and 7
3;7,3,1;, // polygon made with 3 vertexes, 7, 3, and 1
3;5,4,6;, // polygon made with 3 vertexes, 5, 4, and 6
3;6,7,5;, // polygon made with 3 vertexes, 6, 7, and 5
3;4,0,2;, // polygon made with 3 vertexes, 4, 0, and 2
3;2,6,4;, // polygon made with 3 vertexes, 2, 6, and 4
3;4,5,1;, // polygon made with 3 vertexes, 4, 5, and 1
3;1,0,4;, // polygon made with 3 vertexes, 1, 0, and 4
3;2,3,7;, // polygon made with 3 vertexes, 2, 3, and 7
3;7,6,2;; // polygon made with 3 vertexes, 7, 6, and 2

etc