[x3d-public] X3d new version

[John Carlson]

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
>
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