nex_smd_mesh_export.py - buggy animation export

[zuriastrad]

i've been exporting smd meshes and animations from blender using nex_smd_mesh_export.py, but i was having problems when i tried compiling them into a zym. i kept getting this error.

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executing command output
executing command scale
executing command origin
executing command rotate
executing command mesh
parsing mesh pyria.smd
executing command scene
parsing scene die1.smd
bone's parent >= bone's number
error processing script

morphed suggested reading the mesh smd and animation smd and checking the bone number and order was the same. (thanks morphed). in the mesh smd the bone stuff looked like this....

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version 1
nodes
0 "origin" -1
1 "handle" 0
2 "body" 1
3 "chest" 2
4 "l_shoulder" 3
5 "l_upperarm" 4
6 "l_forearm" 5
7 "l_hand" 6
8 "r_shoulder" 3
9 "r_upperarm" 8
10 "r_forearm" 9
11 "r_hand" 10
12 "neck" 3
13 "head" 12
14 "hips" 1
15 "l_hip" 14
16 "l_thigh" 15
17 "l_shin" 16
18 "l_foot" 17
19 "l_toe" 18
20 "r_hip" 14
21 "r_thigh" 20
22 "r_shin" 21
23 "r_foot" 22
24 "r_toe" 23
end

so every bone had it's number, name and the number of the bone it was parented to. when i looked at the same code in the animation smd it looked like this...

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version 1
nodes
0 "origin" -1
1 "handle" 1
2 "body" 2
3 "chest" 3
4 "l_shoulder" 4
5 "l_upperarm" 5
6 "l_forearm" 6
7 "l_hand" 7
8 "r_shoulder" 4
9 "r_upperarm" 9
10 "r_forearm" 10
11 "r_hand" 11
12 "neck" 4
13 "head" 13
14 "hips" 2
15 "l_hip" 15
16 "l_thigh" 16
17 "l_shin" 17
18 "l_foot" 18
19 "l_toe" 19
20 "r_hip" 15
21 "r_thigh" 21
22 "r_shin" 22
23 "r_foot" 23
24 "r_toe" 24
end

so the bones are parented to themselves, which is what was causing the zym build to fail. i copied and pasted the good code from the mesh smd into the animation smd and now everything works ok. i'm not really sure why it exported like this, but it could be something to do with the fact that i'm using a newer version of blender than the one the script was written for.

hope this is useful to someone.

[Rebecca]

That's the off-by-1 bug I've ran into some days ago. See this thread for a fix (and other problems I had): http://alientrap.org/forum/viewtopic.php?p=37267

[zuriastrad]

nice work rebecca, thanks.