The editor is free. Paid unlocks the artifacts you'd actually take out of the browser — Godot 4 projects, portable HTML, 60fps recordings, and hardware reports.
Yes. It generates a real Godot 4 project (.zip) with your map() body, scene tree, orbit camera, and an in-scene UI for blend radius, animate-time, resolution scale, and max steps. Tested against Godot 4.2.2 and 4.3.
Not for the free editor. Cloud scene library and paid exports will require one.
No. Everything runs client-side. Sharing a scene puts the source into a URL hash — nothing is uploaded unless you opt in to a cloud library.
Multi-pass browser effects — bloom, temporal accumulation, volumetric fog, N-bounce reflections — need a pipeline that doesn't fit a single Godot canvas_item shader. The README inside the exported zip lists this explicitly.