[x3d-public] X3D minutes 5 June 2020: Web3D 2020 papers deadline, mantis issues, refining some field names

[John Carlson]

Previous subject:  morphing comparison in X3D and glTF:


http://web3d.org/pipermail/x3d-public_web3d.org/2017-December/008037.html

I would say morphing is doable in X3DOM, but perhaps not other browsers.
The most conformant approach would probably be an IFS where the position
and normal are computed in a shader and the mesh is computed in user code,
or provided statically.

My question becomes,  Why can’t we provide at least provide for common
topologies?  1 surface and 0 edges (sphere), 2 surface (cone), 3 surface
(cylinder), 1 surface and one hole(torus), and consider a higher number of
holes and surfaces.   I think we have a isocahedron at least...but very
slow to open.

It seems like I should be using blender to create X3D.

John

On Sun, Jun 7, 2020 at 12:33 AM John Carlson <yottzumm at gmail.com> wrote:

> What people don’t understand is I’m moving every vertex in the mesh with
> respect to the mesh.   Kind of like particle physics or morphing would be a
> better description.   I have example videos.
>
> John
>
> On Sat, Jun 6, 2020 at 11:01 PM J. Scheurich <mufti11 at web.de> wrote:
>
>>
>> > 1.  User provides a mesh. I have done this before.  It is too slow for
>> > a 100x100 IFS (20000 polygons I think).
>> It depend on your graphics card and driver.
>> For the rasberry PI and some other systems i meshured the performace in
>> 3000 Polygon-Steps
>> (1 NURBS-Object with uv/Tessellation 0)
>>
>> https://wdune.ourproject.org/docs/usage_docs/white_dune_rasberry_pi.odp
>>
>> (in german but page 5 is a readable table).
>> A raspberry PI (shared Memory graphics card) can do 30000 polygons, a
>> Intel HD 3000 shared
>> memory graphics card (this is a common card on older "office"-laptops)
>> can do 33000 polygons.
>> There are very much faster graphic cards on "game laptops"....
>> The fastest graphics card on this list is a very slow (processor)
>> Mac-book....
>>
>> The only systems that are not able to do 20000 polygons are a 8 year old
>> netbook and a
>> ARM chromebook without a 3D driver.
>>
>> so long
>> MUFTI
>>
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>
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