The following are excerpts from ongoing explorations into future declarative 3D web standards for VR and AR. For details, see slides from my October 2016 W3C WebVR Workshop talk on the subject. Content examples were created with either Three.js or A-Frame. Diagrams and visualizations were created with Cinema 4D and After Effects. Note, these are large (20mb) GIFs that may take a while to load.