Ad-Deir Monastery in WebGL: CyArk's Tapestry Takes You Inside Petra

Petra's Ad-Deir Monastery is the kind of thing photographs flatten into a postcard. CyArk's Tapestry experience puts the rose-colored sandstone back on its feet. You drift through seven narrated scenes of the Nabataean monastery carved straight into the cliff face, columns and urn-crowned pediment rendered from a photogrammetry and LiDAR capture dense enough that you can practically count the tool marks. Local voices fade in over ambient desert wind. Then the "Explore in 3D" button lights up and the guardrails come off: WASD, mouse look, and suddenly you are the tourist who showed up at dawn before anyone else did.

Tapestry treats a high-res textured mesh as a canvas and layers structured narrative on top, which sounds obvious until you try to ship it to a phone browser without turning the fans on. Scenes are authored as cinematic camera paths against the same asset the free-explore mode turns you loose inside, so the storytelling and the sandbox share one source of truth. Everything streams through WebGL with cross-platform budgets in mind, Arabic and English toggled live, captions and accessibility themes wired into the same scene graph. It is infrastructure work dressed up as a field trip.

Poke around. Flip between the scripted tour and free-explore on the Ad-Deir facade, switch the language mid-scene, open devtools and watch how the asset streaming behaves as you wander past the draw distance the authored scenes politely avoid. If you build heritage or museum work, the Tapestry platform page at cyark.org/whatwedo is worth a read for how they frame the 3D-canvas-plus-narrative pattern, and their Sketchfab at sketchfab.com/tapestry-cyark has a few of the underlying captures to prod at directly.