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Parts of the FBX file are not imported properly in Modeler.

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삐링뽕

I created a rigged object using blender to register and use it as a Clip Studio asset.

Both lids and body were weight painted using bone, and they work flawlessly in blender.

However, when exporting to an FBX file and then importing it from CSM, parts are not selected and moved properly.

The first lid is a selection of parts, but all parts move together rather than moving separately.
The second lid is not optional.

The same applies even if you separate all parts into a separate collection and export them.
Even if you combine all meshes into one layer and export it, the result is the same.

Is there a solution?

Published date : 12 days ago

Updated date : 9 days ago

Korean

Best Answer

Noborius ◆

10 days ago
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It should not matter. I have painted 0.001 weights on a single polygon and it counted. However, if the area has more than one bone affecting it, the bone with heavier weight will be selectable. The one with less weight won't. Try to revisit your weight painting. Does the seat have seat bone weights only? If the root bone also has weights on the seat and they are heavier, the seat won't be selectable in CSP and will be assigned to root bone.

You can also check if all bones are exported correctly by pressing bone view on top of modeler (offset areas will have a fake bone shape, so don't be surprised).
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삐링뽕

9 days ago

Referring your advice about how to see the bones in CSM, I could solve this problem in a odd way that is not commonsense in blender.

There is no problem with the rigging, weights, and the mesh in FBX file.

However, I encountered another problem.
Can you reply this again plz?

https://ask.clip-studio.com/ko-kr/detail?id=107149
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Noborius ◆

12 days ago
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Can you show your armature hierarchy?
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Noborius ◆

12 days ago
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To explain. All bones need to be parented together to a single root bone. Correct way to do it in your case is to make an entire toilet minus movable parts into a root bone. Seat into second and lid into third. Both lid and seat are parented to toilet. There is no liable way to make water move down in CSP using bones. You cannot translate or scale bones in CSP. Make it into a shape key instead.
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삐링뽕

11 days ago
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Thanks for the reply but all bones are already parented to a root bone.
Every movable parts bones are parented(keep offset) to a single root bone and there is no problem with weighpaint.
All parts are work well in blender pose mode.
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Noborius ◆

11 days ago
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It is hard to see what is parented to what with bone structure alone, especially then they are bulky and not transparent, best give a screenshot of bone drop down menu in armature layer. If both seat and a lid are parented to a single root bone there should be two lines given that their origins are not aligned. I see only one.
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삐링뽕

11 days ago
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This is the bone drop down menu in armature layer.
All bones are parented to a root bone.
Every bones are aligned through Z-axis and I checked that every coordinate of X-axis (head, tail) is 0.

I guess CSM cannot recognize parts that is weight painted small area.
Thickness of the lid and seat is just 20mm.
I saw CSM(in create object) ignores fingertips of few characters made in blender.
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Noborius ◆

10 days ago
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It should not matter. I have painted 0.001 weights on a single polygon and it counted. However, if the area has more than one bone affecting it, the bone with heavier weight will be selectable. The one with less weight won't. Try to revisit your weight painting. Does the seat have seat bone weights only? If the root bone also has weights on the seat and they are heavier, the seat won't be selectable in CSP and will be assigned to root bone.

You can also check if all bones are exported correctly by pressing bone view on top of modeler (offset areas will have a fake bone shape, so don't be surprised).
- English
삐링뽕

9 days ago
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There is no problem with the weights.
But I did't know how can I see the bones in SCM.
Thanks for your help & dedication, I found that CSM imported wrong bones.

When I checked the same FBX file in blender and other 3D program by importing, every bones and meshes are fine.
Movement of all parts in pose mode works without problem.
I'll try changing some relation of bones.

In the past, I found that bone-parenting system in CSM has a lot of problem.
Especially, the character with animal ears, the bones of ears have to be parented to a neck bone(not a head bone) to use in CSM.
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삐링뽕

9 days ago
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I presented some clippy.
I greatly appreciate you helping me.
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Noborius ◆

9 days ago
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Thanks, as for human ears, eyes and so on, all you have to do is use neck button instead of head when bone mapping in Modeler and it will be movable :) No need to parent it to neck bone.
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