[x3d-public] Super simple animations?

John Carlson yottzumm at gmail.com
Mon Aug 7 14:19:00 PDT 2023


Yes, and on Geforce GTX 980 Ti

On Mon, Aug 7, 2023 at 4:18 PM Joe D Williams <joedwil at earthlink.net> wrote:

> Does the latest FreeWRL 6 work in windows 10?
>
> Joe
>
> -----Original Message-----
> From: John Carlson <yottzumm at gmail.com>
> Sent: Aug 7, 2023 9:11 AM
> To: GPU Group <gpugroup at gmail.com>
> Cc: X3D Graphics public mailing list <x3d-public at web3d.org>
> Subject: Re: [x3d-public] Super simple animations?
>
>
> 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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>>>>> x3d-public at web3d.org
>>>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>>
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