[x3d-public] X3d new version

[Konstantin Smirnov]

Also doing research in clothes modeling and visualization. Interval math
project with x3d

пн, 6 сент. 2021 г., 02:10 Konstantin Smirnov <
konstantin.e.smirnov at gmail.com>:

> Thanks!  I am also looking for the most efficient ways of coding for from,
> JS and. Net
> While knowing, improving skills
>
> пн, 6 сент. 2021 г., 01:50 John Carlson <yottzumm at gmail.com>:
>
>> While using interpolators is useful, I don’t really think they are useful
>> for 10000 vertices changing in different directions at the same time.   You
>> need a script, shaders or some kind of physics.   I have an unusual case.
>>
>> GL,
>>
>> John
>>
>> On Sun, Sep 5, 2021 at 3:45 PM Joseph D Williams <joedwil at earthlink.net>
>> wrote:
>>
>>>
>>>
>>>    - Could we change shapes dynamically etc
>>>
>>>
>>>
>>> How do you wish to change the shape.?
>>>
>>> If it has points then you just tell the start positions and the final
>>> positions.
>>>
>>> If the number of points or the connections between the points change
>>> then it is slightly mor complicated.
>>>
>>> Look at x y z scaling changes, coordinate interpolators, the
>>> hanimdisplacer, and, like John mentioned, slightly shaders.
>>>
>>> Good Luck,
>>>
>>> Joe
>>>
>>>
>>>
>>> *From: *Konstantin Smirnov <konstantin.e.smirnov at gmail.com>
>>> *Sent: *Sunday, September 5, 2021 11:33 AM
>>> *To: *John Carlson <yottzumm at gmail.com>
>>> *Cc: *x3d-public at web3d.org
>>> *Subject: *Re: [x3d-public] X3d new version
>>>
>>>
>>>
>>> Thanks for the feedback!
>>>
>>>
>>>
>>> вс, 5 сент. 2021 г., 21:30 John Carlson <yottzumm at gmail.com>:
>>>
>>> You can change position and normal in a vertex shader, but not
>>> connectivity.   I’m pretty sure that connectivity stays the same, unless
>>> you have a geometry (or tessellation) shader.  If you choose to change
>>> position or  normal in a Script,  you will likely find it slower.   Those
>>> are reasons why subdivision (X3DOM) and quality (SAI) are introduced, to
>>> improve quality.  You should try to see if updating subdivisions in X3DOM
>>> achieves what you want.
>>>
>>>
>>>
>>> There really is no need to modify connectivity, imho, unless you are
>>> doing multi resolution modeling (I’ll let you look that up for yourself).
>>>
>>>
>>>
>>> In other words, changing connectivity would look extremely weird.   Even
>>> morphing keeps connectivity, AFAICT.
>>>
>>>
>>>
>>> Suggestion:   Look up ray tracing, and think about probabilistic ray
>>> tracing.
>>>
>>>
>>>
>>> You shouldn’t leverage non-standard features in an X3D implementation,
>>> because you may find that they will become deprecated and removed.
>>>
>>>
>>>
>>> On Sun, Sep 5, 2021 at 3:46 AM Konstantin Smirnov <
>>> konstantin.e.smirnov at gmail.com> wrote:
>>>
>>> Hello
>>>
>>> What new version features are? In JS
>>>
>>> Could we change shapes dynamically etc
>>>
>>> _______________________________________________
>>> x3d-public mailing list
>>> x3d-public at web3d.org
>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>
>>>
>>>
>>
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