[x3d-public] Procedural collectors, Chaotic collectors

[John Carlson]

Lerp — linear interpolation.

On Sat, Mar 12, 2022 at 3:53 PM John Carlson <yottzumm at gmail.com> wrote:

> Appreciated.   I’ll look up lerp!
>
> John
>
> On Sat, Mar 12, 2022 at 3:28 PM GPU Group <gpugroup at gmail.com> wrote:
>
>> One idea is to add collectors to the physics based emitter scenarios.
>> The physics changes the particle's position based on physics formulas,
>> on each iteration. A collector could have 'influence' on the position,
>> based on
>> a) time since emitting, with the greater time, the more influence
>> position = lerp(delta_time, physics_position, collector_position)
>> so that as time goes on, the collector position dominates until the
>> particle is at the collector
>> b) nearness to a collector - with multiple collectors in the scene, it
>> would be nice if a particle would go to the closest collector.
>> collector = closest(collector_list,particle_position)
>> position = lerp(delta_time, physics_position, collector_position)
>> Doug
>>
>> On Sat, Mar 12, 2022 at 2:12 PM John Carlson <yottzumm at gmail.com> wrote:
>> >
>> > For a concrete example, one might consider a procedurally generated
>> tree (L-system) affected by either a liquid or gas emitter, then try to
>> figure out what stress will break a tree limb or root.
>> >
>> > On Sat, Mar 12, 2022 at 3:05 PM John Carlson <yottzumm at gmail.com>
>> wrote:
>> >>
>> >> To continue the discussion of collectors, I will introduce 2 newer
>> terms, “procedural collector” and “chaotic collector.”   These might be
>> considered the opposite of procedural generation and then the variety of
>> X3D particle system emitters matched with new collector nodes.
>> >>
>> >> So there are “garbage emitters/generators” and “garbage collectors,”
>> of course.   First we need better modeling of the problem space for
>> collectors.
>> >>
>> >> X3D Proto Design welcome!
>> >>
>> >> Fluid system X3D proto design welcome!   Fluid emitters and fluid
>> collectors welcome!
>> >
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