inverse bind matrix for joint

Other Standards COLLADA
1

Hy.
How i get the inverse bind matrix for joint in collada dom?
es:
<source id=“Box02-mesh-skin-bind_poses”>
<float_array id=“Box02-mesh-skin-bind_poses-array” count=“64”>0.000000 0 1 0.969011 -1 0 0.000000 13.1309 0 -1 0 -0.000000 0 0 0 1 0.007935 0 0.999968 -22.514 -0.999968 0 0.007935 12.9527 0 -1 0 -0.000001 0 0 0 1 0.015383 0 0.999882 -41.4934 -0.999882 0 0.015383 12.644 0 -1 0 -0.000002 0 0 0 1 0.015383 0 0.999882 -51.236 -0.999882 0 0.015383 12.644 0 -1 0 -0.000002 0 0 0 1</float_array>
<technique_common>
<accessor source="#Box02-mesh-skin-bind_poses-array" count=“4” stride=“16”>
<param name=“TRANSFORM” type=“float4x4”/>
</accessor>
</technique_common>
</source>

2

resolved , i get the input array of the joints() function that return the INV_BIND_MATRIX and the joint.
Whith the getsource i get the data that i need.