[x3d-public] Fuzz testing HAnim

[John Carlson]

I see 10 #VRML sections:

A.3.2.1 LOA‑0: Example source in VRMLA.3.2.2 LOA‑0 example with diamonds at
Joint centres
A.4.2.1 LOA‑1 example source in VRML
A.4.2.2 LOA‑1 example with diamonds at Joint centres
A.5.2.1 LOA‑2 example source in VRML
A.5.2.2 LOA‑2 example with diamonds at Joint centres
A.6.2.1 LOA‑3 example source in VRML
A.6.2.2 LOA‑3 example with diamonds at Joint centres
A.7.2.1 LOA‑4 example source in VRML
A.7.2.2 LOA‑4 example with diamonds at Joint centres

Which ones need work?  Do you need fresh examples?  Do you start from one
of the above and generate the others?

Thanks,

John




On Tue, Mar 24, 2020 at 10:10 PM John Carlson <yottzumm at gmail.com> wrote:

> Do you have a particular section in mind inside Annex A?
>
> Thanks,
>
> John
>
> On Tue, Mar 24, 2020 at 10:08 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> Will do.
>>
>> On Tue, Mar 24, 2020 at 9:53 PM Joseph D Williams <joedwil at earthlink.net>
>> wrote:
>>
>>> Please try starting by looking at the example in hanim annex A.
>>>
>>> Joe
>>>
>>>
>>>
>>> *From: *John Carlson <yottzumm at gmail.com>
>>> *Sent: *Tuesday, March 24, 2020 7:51 PM
>>> *To: *Joseph D Williams <joedwil at earthlink.net>
>>> *Cc: *X3D Graphics public mailing list <x3d-public at web3d.org>
>>> *Subject: *Re: [x3d-public] Fuzz testing HAnim
>>>
>>>
>>>
>>> Sorry for the late reply. My guess is I need some kind of rigging tool?
>>> Will blender do the job?
>>>
>>>
>>>
>>> What is the target language? I'm guessing we need some kind of
>>> interpolators?
>>>
>>>
>>>
>>> John
>>>
>>>
>>>
>>> On Mon, Oct 7, 2019 at 1:22 AM Joseph D Williams <joedwil at earthlink.net>
>>> wrote:
>>>
>>>
>>>
>>> The thing is, we need to unfuzz hanim.
>>>
>>> Unfuzz meaning making the stuff work more accurately.
>>>
>>> The first improvement would be more realistic joint models. Now we do
>>> joint rotations based on the idea that all joints work with the joint
>>> center of rotation fixed. Many joint types don’t actually do it this way,
>>> some slike and somehacve rotation centers change over the range. Some
>>> slide. X3d hanim doesn’t know about these joint types.
>>>
>>> Notice how the skin works, being displaced due to the effect of several
>>> joints. We need a way for the joints and sites to be controlled the same
>>> way. First, for the joints, we need to be able to define a group of joints
>>> that can move toegehter, like the bones in the hands and feet.
>>>
>>> Likewise, we nee a way for the site nodes to remain at the same skin
>>> vertex as the skin is deformed.
>>>
>>> All Best,
>>>
>>> Joe
>>>
>>>
>>>
>>> *From: *Joseph D Williams <joedwil at earthlink.net>
>>> *Sent: *Friday, October 4, 2019 8:19 PM
>>> *To: *John Carlson <yottzumm at gmail.com>; X3D Graphics public mailing
>>> list <x3d-public at web3d.org>
>>> *Subject: *Re: [x3d-public] Fuzz testing HAnim
>>>
>>>
>>>
>>>
>>>
>>> John, sounds like you have a plan. What can we get from existing hanim
>>> animations? An interesting problem is successfully animating a transition
>>> from one scripted animation to another, like from one hand sign to another,
>>> smoothly and realistically. Unfortunately, the joint rotation constraints
>>> parameters are rarely implemented, that I have seen.
>>>
>>> Joe
>>>
>>>
>>>
>>>
>>>
>>> *From: *John Carlson <yottzumm at gmail.com>
>>> *Sent: *Wednesday, October 2, 2019 7:10 PM
>>> *To: *Joseph D Williams <joedwil at earthlink.net>; X3D Graphics public
>>> mailing list <x3d-public at web3d.org>
>>> *Subject: *RE: Fuzz testing HAnim
>>>
>>>
>>>
>>> Joe,
>>>
>>>
>>> It’s called fuzzing, if you want to look it up.
>>>
>>>
>>>
>>> Perform or save a stochastic or chaotic animation (clips, possibly) to
>>> test limb and joint constraints, etc.
>>>
>>>
>>>
>>> John
>>>
>>>
>>>
>>> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>>
>>>
>>>
>>> *From: *Joseph D Williams <joedwil at earthlink.net>
>>> *Sent: *Wednesday, October 2, 2019 9:01 PM
>>> *To: *John Carlson <yottzumm at gmail.com>; X3D Graphics public mailing
>>> list <x3d-public at web3d.org>
>>> *Subject: *RE: Fuzz testing HAnim
>>>
>>>
>>>
>>> Hi John,
>>>
>>> Please tell me what is a fuzz test.
>>>
>>> The basis is Humanoid (humanoid space), skeleton composed of joints and
>>> segments (skeleton space), skin composed of points (skin space), animation
>>> bindings for joints to skin, and animation for the joints. What do we want
>>> to fuzz around with?
>>>
>>> All Best,
>>>
>>> Joe
>>>
>>>
>>>
>>>
>>>
>>> *From: *John Carlson <yottzumm at gmail.com>
>>> *Sent: *Tuesday, October 1, 2019 3:24 PM
>>> *To: *X3D Graphics public mailing list <x3d-public at web3d.org>; Joseph D
>>> Williams <joedwil at earthlink.net>
>>> *Subject: *Fuzz testing HAnim
>>>
>>>
>>>
>>> To get familiar with HAnim, I want to generate a fuzz test for the nodes
>>> and fields.
>>>
>>>
>>>
>>> Is anyone working on something similar?
>>>
>>>
>>>
>>> Thanks,
>>>
>>>
>>>
>>> John
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20200324/3c82947e/attachment.html>