a technique developed at Croquet Corporation for securely connecting 3D web-based worlds developed by different parties to create the Metaverse from independent microverses medium 
> The idea for multiplane portals combines the ability of iFrames to be rendered transparently with Disney’s original multiplane camera where they stacked transparent “cels” one on the other to achieve actual depth and opacity in an animated scene. ⇒ Transcription (Aufeinanderschichtung ⇒ Stacking ⇒ Stack) […]
> A web app we call the shell is used to hold the stack of iFrames and allows them to communicate essential information.
DOT FROM lambda-browsing
– https://davidasmith.medium.com/multiplane-portals-for-the-metaverse-a4b7af913e8e
⇒ Portal
VIMEO 716605857 Croquet Microverse IDE - Create Your World