[X3D-Ecosystem] Does this AI program generally look correct?
John Carlson
yottzumm at gmail.com
Thu Jan 16 23:09:33 PST 2025
I forgot to include this quote: “
No, in Blender, skin weights are influenced by the entire bone, from head
to tail. The bone's influence on vertices is generally calculated based on
the distance from the vertex to the nearest point on the line segment
formed by the bone's head and tail. This is why it's important to set
proper bone tail positions, not just the head positions.”
So it would seem like the best thing to do for X3D is not use the child
joint center for the parent bone tail, except as a direction vector???
AI misinformation?
Hmm!
On Fri, Jan 17, 2025 at 12:55 AM John Carlson <yottzumm at gmail.com> wrote:
> Here’s another option:
>
> https://claude.site/artifacts/fa241e9b-1755-4ae6-8bcf-ea4841248b9a
>
> What these two seem to indicate is that bone tail should not be child
> joint center. What do you think? Also, since it’s not only the bone head
> influencing the skin, perhaps we should change the length of the bones I’m
> loading?
>
> I’m puzzled, because I see a difference in how Claude seems to indicate
> how bone influences the skin than what you guys have been telling me, but
> perhaps you guys assumed short bone length?
>
> John
>
> On Fri, Jan 17, 2025 at 12:42 AM John Carlson <yottzumm at gmail.com> wrote:
>
>> If we can agree that this generally looks ok, I will try to implement
>> this in the Blender importer:
>> https://claude.site/artifacts/7c4c15f2-1bde-4da5-9503-f4f25b09016a
>>
>> I realize the bone.tail should probably be the child joint center.
>>
>> I do not yet know what i am doing wrong, but my focus will be shifting to
>> animation import after export is done to my satisfaction.
>>
>
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