[x3d-public] Super simple animations?

Mon Aug 7 09:29:51 PDT 2023

Found it.  I guess goofballs like me don't see the ...

John

On Mon, Aug 7, 2023 at 11:22 AM GPU Group <gpugroup at gmail.com> wrote:

> Edge shows a warning sign, saying not frequently downloaded, and there's a
> "..." you hit that and choose "keep anyway"
>
>
> On Mon, Aug 7, 2023 at 10:15 AM John Carlson <yottzumm at gmail.com> wrote:
>
>> Note, FreeWRL 6.1 download got "cancelled" by Edge.  Looks like you'll
>> have to worship Microsoft.
>>
>> I will try with Chrome and Firefox.
>>
>> Thanks,
>>
>> John
>>
>> On Mon, Aug 7, 2023 at 11:10 AM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> I'm going to try FreeWRL 6.1 since you've updated.  FreeWRL 4.0 still is
>>> good for many tasks, even OpenGL
>>>
>>> John
>>>
>>> On Mon, Aug 7, 2023 at 9:13 AM GPU Group <gpugroup at gmail.com> wrote:
>>>
>>>> You are welcome to make some prototype nodes.
>>>> https://freewrl.sourceforge.io/tests/43_MIDI/
>>>> test_js_make_parse_UMPdouble.x3d
>>>> - some example code for making and parsing a MIDI 2 UMP packet or MIDI
>>>> 1 message from a Script node
>>>>
>>>>
>>>>
>>>> On Mon, Aug 7, 2023 at 7:58 AM GPU Group <gpugroup at gmail.com> wrote:
>>>>
>>>>>
>>>>>    - W3C Web MIDI API, draft
>>>>>    - https://webaudio.github.io/web-midi-api/
>>>>>
>>>>> PS this spec is MIDI 1 protocol -- messages - a stream of bytes with a
>>>>> count/length.. MIDI 2 uses fixed size packets called UMP universal midi
>>>>> packet, and for long messages sends continuation packets.
>>>>> Freewrl version 6.1 windows version has an option on the launcher
>>>>> panel for MIDI transport, 1 or 2. If 1 it uses MIDI1 messages, if 2 it uses
>>>>> MIDI2 packets.
>>>>> midi.org has released their midi 2 specs in July
>>>>> https://www.midi.org/specifications
>>>>> and you can create a free log in account, and download the midi 1 and
>>>>> 2 specs. For MIDI 2 message to packet conversion, I downloaded the
>>>>> "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" pdf, and
>>>>> Appendix D shows how to convert MIDI 1 messages to/from UMP.
>>>>> https://freewrl.sourceforge.io/tests/43_MIDI/
>>>>> NOTES_midi.txt
>>>>> - shows my current 'exploratory proof of concept' node designs.
>>>>> - comments welcome
>>>>> -Doug
>>>>>
>>>>> On Sun, Aug 6, 2023 at 5:26 PM Brutzman, Donald (Don) (CIV) <
>>>>> brutzman at nps.edu> wrote:
>>>>>
>>>>>>
>>>>>>    1.  John, i know of no event animation chain for X3D that cannot
>>>>>>    be expressed using X3D4 ROUTE connections using interpolators, sequencers,
>>>>>>    and event utility nodes. Chasers, dampers, and Script node provides further
>>>>>>    capabilities for variation. X3D4 architecture appears to have full
>>>>>>    expressive power for animation.
>>>>>>
>>>>>> If you want to adapt things in a different way, repeatably, then
>>>>>> great - please write a prototype. The X in X3D is Extensible.
>>>>>>
>>>>>> Of course Script nodes, and programming libraries like X3DJSONLD,
>>>>>> X3DJSAIL, x3d.py and others, are both declarative and imperative
>>>>>> simultaneously when manipulating the scene graph.
>>>>>>
>>>>>>
>>>>>>    1.  Doug, we have had great success mapping Web Audio API to
>>>>>>    X3D4.  I think we have a similar path forward to X3D4.1 for MIDI.
>>>>>>
>>>>>>
>>>>>>    - W3C Web MIDI API, draft
>>>>>>    - https://webaudio.github.io/web-midi-api/
>>>>>>
>>>>>> Once again, X3D prototypes and Script node can provide a useful path
>>>>>> forward for design, implementation, and evaluation of new nodes.  Usage
>>>>>> of stable prototypes can encourage significant usage and deployment.
>>>>>>
>>>>>> Given that Web3D Consortium has a formal liaison partnership with
>>>>>> W3C, designated Web3D members can further participate in Audio Working
>>>>>> Group to share design considerations and suggest refinements in the draft
>>>>>> W3C MIDI API. Membership has value!
>>>>>>
>>>>>> v/r Don
>>>>>> ------------------------------
>>>>>> *From:* x3d-public <x3d-public-bounces at web3d.org> on behalf of GPU
>>>>>> Group <gpugroup at gmail.com>
>>>>>> *Sent:* Sunday, August 6, 2023 10:25
>>>>>> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>
>>>>>> *Subject:* Re: [x3d-public] Super simple animations?
>>>>>>
>>>>>> MIDI nodes are a bit like that - you can design the event sequence /
>>>>>> timing in a MIDI authoring tool, then play the .mid file and route from
>>>>>> ToneSplitter. I'm thinking about a fireworks scene combining particle
>>>>>> physics and midi event sequencing. Perhaps we need something more general,
>>>>>> as a utility node set.
>>>>>> -Doug
>>>>>>
>>>>>> On Sun, Aug 6, 2023 at 11:14 AM John Carlson <yottzumm at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Conceptually one could do this with a switch, but i don’t know about
>>>>>>> events from the switch to enable the child TimeSensor or the startTime.
>>>>>>>
>>>>>>> If you tell me to do use a Script, why not put imperative code in an
>>>>>>> encoding instead?
>>>>>>>
>>>>>>> John
>>>>>>>
>>>>>>> On Sun, Aug 6, 2023 at 11:17 AM John Carlson <yottzumm at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I would like something like a TimeSensorSequencerGroup that enables
>>>>>>>> and disables children TimeSensors in order of appearance in the code, if
>>>>>>>> such a thing exists.  No need to fiddle with TimeSensor fields, the
>>>>>>>> SequencerGroup does it for you.
>>>>>>>>
>>>>>>>> I know this is imperative programming, and not declarative, but
>>>>>>>> sometimes, you’ve got to bite the bullet of simplicity.
>>>>>>>>
>>>>>>>> Thanks!
>>>>>>>>
>>>>>>>> John
>>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
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