I found out that the sample animation with the tank is not suited for rigged characters. I think that mesh is made of part and the example is just using root bones to move them so my question is how to transform a bones with matrix or quaternion.

cheers

There's another sample for skinned characters, further down in the list of samples.

Note that there's a limit to the number of bones you can use. I seem to recall it is about 56 bones in the sample, although by squashing the bones from 4x4 to 3x4 matrices, you can get it up above 70 pretty easily.

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Jon Watte, Direct3D MVP
kW X-port 3ds Max .X exporter
14 days after getting my RROD box back, it's going back for service again. Grr.

I'm not trying to animate the character using animation but rotation matrix so I need to get the bones directly. but I understanding how it's works . I need to animate them using hlsl code.