The hip-hop room's north section is a real cyclorama (white curved infinity wall). Added a data-driven cove:
virtual_space gains cyclorama (comma list of north/south/east/west) + cyclorama_radius + cyclorama_color.
buildCyclorama() sweeps a profile per wall — [flat wall down to R] → [quarter-circle fillet radius R] →
[white floor lead-in] — so the floor curves up into the wall with no hard seam (the seamless studio look).
Cyclorama walls skip their flat wall (the cove replaces it). Set on hiphop-room (space 3): cyclorama=north,
R=0.9. v1 = single-wall cove (back curve); 3-sided + rounded vertical corners + partial-wall extent for the
L-shape = next iteration, all tunable via the columns.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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