Solved.
I directly used softimage, without converter. I found good export parameters and how to deal with softimage to anim mesh parts.
For information :
- xsi files supported are only version > 5.00 in text mode (xsi file version). I used 6.00.
- when exporting it's important to uncheck "filter key" box because with it wz4 cannot import the file (calculation error...)
- Imported xsi animation in wz4 are only based on chain bones.
here my xsi export param, wz4 example and model.
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