[x3d-public] Mutable scenegraphs
John Carlson
yottzumm at gmail.com
Sat Jul 31 16:27:48 PDT 2021
I forgot the term for the Minecraft idea where the whole world is mutable.
Or the idea that you can crush everything in a virtual world.
How this would apply to X3D seems rather impossible. Has anyone done
extensive mutability with X3D? Generic particle systems?
Yes, I’ve seen the “smooth” Minecraft-like demos.
I understand structural and behavioral, but is there a third choice? How
might we create a structural+behavioral scenegraph without switching
languages? Interpolation? Particle systems? XSLT? Dart?
Are encodings like XML+XSLT, JSON+XSLT and VRML+??? even adequate? Will
do some searching.
Thanks!
John
On Sat, Jul 31, 2021 at 5:11 PM John Carlson <yottzumm at gmail.com> wrote:
> I am wondering if the goal of immutable instances is desired or even
> feasible in X3D.
>
> As a small example, I might want to change the color of something. A
> larger example might be animating a mesh. I understand that you don’t
> want to regenerate the mesh each time you move it, as this would require
> twice the memory. However I can see that changing coordinates or normals
> might be desired.
>
> Does immutability really have a place in an animated system?
>
> I remember my first sorting algorithm I ever wrote i used two data
> structures, one for initial data, and one for the result. Seemed
> reasonable to me, but my teacher said no.
>
> Thanks!
>
> John
>
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