Disconnect All hidden bones?

xzhuah commented 1 year ago

The "Link to" logic in PMX and MMD is different.

For PMX model, when a bone A is "link to" another bone B, it only has visual effect: you will see a triangle link from A to B. It won't affect the actual movement of bone A and B.

However in blender, when you link two Bones by connecting them, the connection will make sure these two bone are always phsically connected.

Usually it won't be a problem because for most bones, if they are linked, they are physically connected. But I recently see some models who is using a lot of hidden bones for controling expression. Some of the bones are connected, the expression is correct in MMD/PMXEditor, but not looking good in blender because some bones are not moving correctly because they are connected to other bones. This issue can be resolved by manually find these bones and press alt+p in edit mode and disconnect them.

Here is an example model:

https://drive.google.com/file/d/15U21mm5EIFvZTl_41A0jq44RO3TDRq1H/view?usp=sharing

The bone morph "でも、・・・" is not working correctly in Blender but looks good in PMXEditor

The reason is the hidden bone "mouth_S_1" is connected(linked) to the "mouth" bone. You can fix this by disconnect it in edit mode in Blender. N1WMJR$){7YSVE16{E{ATPV