root bone is having 100 scale in unreal engine

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i been struggling to get this fix for over a week now

i import unreal 4 mannequinn then animate it and send to unreal all works
BUT why this new bone named SK_Mannequnne created automatically in houdini just for the round trip

i tried this for couple of times - no matter what i do when i send my custom skeleton (made in kinefx exported via rop character node) to unreal my ROOT BONE SCALE is 99.9999

i tried many different solutions but nothing works, and i saw some ask about this in many places but i dont see a solution

many place mention to use houdini engine unreal plugin but i dont wanna use it its too much stuff

please , a few words about houdini kinefx skeleton to unreal at least?
Edited by gihan - 2023年3月1日 22:31:28
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fellow named will on the Think Procedural discord server helped me
there is not a single word about this mentioned in anywhere, so sad feel bad

fix "add a rigpose, set it to world transform and scaled everything to .01 before export"
Edited by gihan - 2023年3月2日 10:12:23

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I'd assume it's caused by Convert Units checkbox

That one is present on both FBX import and output nodes and can mess with your asset scale without you realizing it
Tomas Slancik
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Unfortunately, Unreal suffers from issues with scales in the joint transforms. So what this is actually doing is keeping the same world space joint translations but effectively throwing away the scales.
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You can also divide the transform of the skeleton with a simple point wrangle node. The equivalent to the rig pose node would be:

3@transform /= 100;

Then do that for both the rest pose and the animated pose.

I made a quick tutorial about this same topic because I also was really confused, you can see it in here:
Edited by eusebijucgla - 2023年6月12日 09:13:47
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Sebi
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gihan
fellow named will on the Think Procedural discord server helped me
there is not a single word about this mentioned in anywhere, so sad feel bad

fix "add a rigpose, set it to world transform and scaled everything to .01 before export"

You are the man, bro.
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