[x3d-public] Turning on and off simultaneous animations individually

Sat Feb 1 12:34:25 PST 2025

Hi John,

https://gist.githubusercontent.com/andreasplesch/6fd2fd0b0f745b3549b74150b7752d89/raw/c02637b602f9241c9ea73b5ad859ab330c071e25/toggleReset.x3d

resets the animation everytime it is restarted after stopping.

The only change is replacing resumeTime and pauseTime with startTime and
stopTime .
Instead of a toggle button, it would be possible to have two separate
buttons, one for stopping and one for resetting.

This may be what you are looking for, -Andreas

On Sat, Feb 1, 2025 at 6:16 AM John Carlson <yottzumm at gmail.com> wrote:

> Andreas,
>
> For extra credit, reset the animation each time a toggle button is
> pressed.  So far, it looks dubious without scripting.
>
> Got a reliable solution for resetting the animations?
>
> On Wed, Dec 11, 2024 at 3:08 PM Andreas Plesch <andreasplesch at gmail.com>
> wrote:
>
>> Hi John, group,
>>
>> Exploring how far one could get without X3D scripts and only using
>> event utilities, let me share an example of a panel of individually
>> controlled toggle buttons which then drive a simple assemblage of
>> individually animated spheres:
>>
>>
>> https://andreasplesch.github.io/Library/Viewer/index.html?url=https://gist.githubusercontent.com/andreasplesch/6fd2fd0b0f745b3549b74150b7752d89/raw/37f94755f763ecc9a0439a0dab2f32441e8b12aa/toggleButtonExample.x3d
>>
>> https://gist.github.com/andreasplesch/6fd2fd0b0f745b3549b74150b7752d89
>>
>> There are two sections, one for the control panel and one for the
>> controlled assemblage. Each section has a Proto as the main building
>> block for simple reuse. The toggle button Proto is based on wrapping,
>> synced Integer and BooleanSequencers for color toggling and outputting
>> useful events corresponding to the state of the button. This is
>> probably the most useful and interesting part. Everything else is more
>> for demonstration.
>> There is also an animatedBlob Proto which shows how animations might
>> be controlled by routing events from a toggle button.
>> The animations all start out in sync after being enabled by a button
>> but then can be individually paused and resumed for arbitrarily
>> pulsating patterns.
>>
>> Event utilities generally turn out to require verbose declarative
>> code, compared to logic in scripts but that can be mitigated to a good
>> extent by Protos which also help with scene structure.
>>
>> There is one standard related question which came up for me and I
>> think that may have been raised before. The question is what the
>> value_changed should be after a Sequencer receives a first 'next'
>> event without ever having received a set_fraction or other event. In
>> this case there is not a next value because there was never any value
>> in the first place. Both x3dom and x_ite currently output the first
>> keyValue and set the first key as the current key in this case.
>>
>> x_ite and x3dom work almost the same with the example. x_ite
>> immediately starts the animations where x3dom waits as intended until
>> the related Timesensors receive a first 'enabled' event. There may be
>> a simple fix for x_ite use but I could not find it.
>>
>> Thanks, -Andreas
>>
>> On Sat, Dec 7, 2024 at 4:37 PM John Carlson <yottzumm at gmail.com> wrote:
>> >
>> > So here’s an interesting question:  If I have the same ROUTE in two
>> different choices in a Switch, is one of them ignored?
>> >
>> > Not that I’m going to do that.
>> >
>> > I’m probably going to try using a Switch unless someone says that
>> ROUTEs are always active in a Switch, disagreeing with the AI.
>> >
>> > John
>> >
>> > On Sat, Dec 7, 2024 at 3:29 PM John Carlson <yottzumm at gmail.com> wrote:
>> >>
>> >> From X3D4:
>> >>
>> >>
>> >> 4.4.8.2 Routes
>> >>
>> >> Routes are not nodes.
>> >>
>> >> [snip]
>> >>
>> >> Redundant routing is ignored. If an X3D file repeats a routing path,
>> the second and subsequent identical routes are ignored. This also applies
>> for routes created dynamically using the X3D SAI.
>> >>
>> >>
>> >> Can someone clarify how statements are affected by Switches?  Can I
>> have different choices of a PROTO inside a Switch?  Effectively changing
>> ProtoBody content at run-time???
>> >>
>> >> John
>> >>
>> >>
>> >>
>> >> On Sat, Dec 7, 2024 at 2:40 PM John Carlson <yottzumm at gmail.com>
>> wrote:
>> >>>
>> >>> Would it be possible to put an animation’s ROUTEs in a Switch that
>> could be toggled on and off with a boolean toggle?
>> >>>
>> >>> Google AI says:
>> >>>
>> >>> Yes, you can absolutely put "ROUTE" nodes within a "Switch" node in
>> X3D; in fact, it's a common practice to use them together to dynamically
>> control which set of connections (via ROUTE) are active depending on which
>> child node of the Switch is currently selected.
>> >>>
>> >>> I didn’t realize that statements were affected by Switch.
>> >>>
>> >>> John
>> >>>
>> >>> On Sat, Dec 7, 2024 at 1:43 PM John Carlson <yottzumm at gmail.com>
>> wrote:
>> >>>>
>> >>>> We are dealing with multiple facial animations.  The thing we want
>> to do is combine animations using HAnimDisplacers.  Currently, our
>> animations go from key = 0 to key = 1, (weight = 0 to weight = 1) and each
>> animation is controlled by a single TimeSensor that we enable or disable.
>> What we want to do is enable multiple facial animations, yet retain a
>> single TimeSensor.  I have done something with enabling multiple time
>> sensors all at the same time.  So, ideally, we could toggle each facial
>> animation individually.
>> >>>>
>> >>>> Note that one can have multiple simultaneous HAnimDisplacer
>> animations on a single Coordinate, they all add up just fine.  There’s no
>> single animation per body part requirement as there is in other places in
>> X3D (according to Michalis, from my understanding).
>> >>>>
>> >>>> I don’t currently know how to individually toggle multiple
>> animations without toggling multiple TimeSensors, so assistance is
>> welcome!  Indeed, a multiple toggle button X3D example would be welcome
>> (hopefully, something we can put in a scenegraph).
>> >>>>
>> >>>> Here’s what we currently have
>> >>>>
>> https://github.com/coderextreme/ci2had/blob/main/resources/SingleMenuJin.x3d
>> >>>>
>> >>>> As you can see, lots of duplication.
>> >>>>
>> >>>> Viewed best in FreeWRL and Sunrize/X_ITE.
>> >>>>
>> >>>> John
>>
>>
>>
>> --
>> Andreas Plesch
>> Waltham, MA 02453
>>
>

-- 
Andreas Plesch
Waltham, MA 02453
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