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@@ -72,8 +72,17 @@ docs/superpowers/    design spec + implementation plan
 
 ## Status
 
-**Phase 1 (Schwarzschild)** — shipped: shadow, tilted Doppler accretion disk with lensed Einstein halo, lensed starfield, lensed planets, lensed Flamm grid, optional cubemap skybox, live egui controls, desktop + web/WebGPU.
+**Phase 1 (Schwarzschild)** — shipped & validated: black shadow at the critical impact parameter, tilted Doppler accretion disk with the lensed Einstein halo (disk backside lensed up-and-over and down-under), procedural lensed starfield, lensed Flamm-paraboloid curvature grid, optional cubemap skybox, live egui Controls panel, desktop + web/WebGPU.
 
-**Phase 2 (Kerr)** — **implemented, pending visual/performance validation.** The Schwarzschild fixed-step RK4 integrator was replaced by a Kerr geodesic with an adaptive Dormand-Prince RK45 loop: a spin parameter χ ∈ [0,1] drives frame-dragging and a spin-dependent capture radius (Kerr horizon), the disk inner edge tracks the Kerr ISCO, and `render_scale` is now wired through an offscreen render-to-texture + upscale pass. The CPU mirror (`src/physics.rs`) covers the Kerr derivative, the RK45 step, and the adaptive loop, and the unit tests assert the spin = 0 degeneracy plus capture/escape behavior at spin > 0. What remains is the human-in-the-loop checklist: spin = 0 visual regression against Phase 1, frame-dragging asymmetry at spin > 0, and desktop/web FPS at the new defaults — see `docs/superpowers/plans/2026-07-13-interstellar-blackhole-phase2-kerr.md` (Task 8).
+**Phase 2 (Kerr)** — shipped & validated. The Schwarzschild fixed-step RK4 integrator is replaced by a Kerr geodesic with an **adaptive Dormand-Prince RK45** loop. A spin parameter χ ∈ [0,1] drives the Lense-Thirring frame-dragging term in the bending acceleration and a spin-dependent capture radius (Kerr horizon r₊); at χ = 0 the frame-dragging term vanishes and the integrator is exactly Schwarzschild. The disk inner edge tracks the Kerr ISCO (6M = 3 Rs at χ = 0 → M = Rs/2 at extremal spin). The CPU mirror (`src/physics.rs`) covers the Kerr derivative, the RK45 step, and the adaptive loop; 14 unit tests assert the spin = 0 degeneracy, the monotonically shrinking ISCO/horizon/capture radius, and capture/escape behavior. `render_scale` is wired through an offscreen render-to-texture + upscale pass.
 
-**Phase 3 (future work).** Full exact Kerr Cartesian pseudo-Hamiltonian (Σ/Δ/Carter-separable form) for sub-percent photon-orbit accuracy at high spin, retrograde spin, tilted spin axis, and adaptive integrator *order*. See `docs/superpowers/specs/2026-07-13-interstellar-blackhole-phase2-kerr-design.md` §9.
+**Phase 3 (cinematic)** — shipped & validated:
+- **HDR pipeline** — full-screen quad chain: bright-pass → blur pyramid (2 down + 2 up) → composite with ACES filmic tone-map. `BloomQuality` (Off / Low / Medium / High) despawns/respawns the bloom sub-graph; Off composites scene-only ACES.
+- **Volumetric disk (3.1)** — fbm + ridged-multifractal turbulence replaces the zero-thickness slab; per-segment integration along the bent ray, scale-height H/R radial thickness, three `DiskQuality` tiers gating octave counts.
+- **Blackbody disk + relativistic jets (3.2)** — `DiskColorMode::Blackbody` keys a Tanner-Helland color to a Novikov-Thorne radial temperature profile shifted by the Kerr 4-velocity Doppler factor; bipolar relativistic jets along the spin axis are spin-gated (Blandford-Znajek: suppressed at χ = 0 regardless of the toggle).
+- **Anti-aliased lensed-image rings (3.3)** — `AaQuality` supersamples the higher-order ring wraps (1 / 2 / 4 sub-rays per pixel) to smooth the discrete bands into a continuous gradient.
+- **Kerr orbiting planets (3.4)** — lensed planets on Kerr equatorial orbits (`Ω_φ` Bardeen 1972) with Lense-Thirring nodal precession (`Ω_LT`), deterministically seeded (ChaCha8Rng), live respawn on seed/count/radius change.
+
+**Performance defaults** target ~60 FPS on discrete/integrated GPU (developed on Apple M4): desktop `steps=300`, `render_scale=0.75`, `bloom=High`, `disk=High`, `aa=Low`; web drops to `steps=200`, `render_scale=0.5`, `bloom=Low`, `disk=Low`, `aa=Off`. Release profile uses fat LTO + single codegen unit on desktop; the web profile overrides `opt-level="z"` for binary size.
+
+**Phase 4 (future work).** Full exact Kerr Cartesian pseudo-Hamiltonian (Σ/Δ/Carter-separable form) for sub-percent photon-orbit accuracy at high spin, retrograde spin, tilted spin axis, and adaptive integrator *order*. See `docs/superpowers/specs/2026-07-13-interstellar-blackhole-phase2-kerr-design.md` §9.