{
  "release": "0.6.0",
  "experiment": "Sun-water eye observer",
  "model_class": "fixed distant Planck source; analytic linear water surface; IAPWS visible dispersion; classical Snell/Fresnel ray transport; CIE 1931 analytic observer",
  "reference_inputs": {
    "solar_temperature_k_nominal": 5772.0,
    "water_temperature_k": 298.15,
    "water_density_kg_m3": 997.047,
    "water_refractive_index_source": "IAPWS R9-97",
    "color_observer_source": "CIE 1931 2-degree standard observer"
  },
  "constructed_inputs": {
    "surface": {
      "half_extent_m": 2.0,
      "depth_m": 1.2,
      "amplitudes_m": [
        0.055,
        0.035,
        0.022
      ],
      "wavelengths_m": [
        1.55,
        1.05,
        0.72
      ],
      "directions_deg": [
        8.0,
        117.0,
        231.0
      ],
      "phases_rad": [
        0.0,
        1.1,
        2.2
      ]
    },
    "fixed_sun_elevation_deg": 55.0,
    "fixed_sun_azimuth_deg": 22.0,
    "frames": 150,
    "fps": 60,
    "duration_s": 2.5,
    "observer_exposure_s": 0.008333333333333333,
    "exposure_samples": 3,
    "ray_grid": [
      72,
      72
    ],
    "caustic_pixels": [
      144,
      144
    ],
    "spectral_bins": 21,
    "wavelength_range_nm": [
      380.0,
      780.0
    ]
  },
  "checks": {
    "water_refractive_index_380_nm": 1.3451106914572664,
    "water_refractive_index_589_3_nm": 1.332858050758512,
    "water_refractive_index_780_nm": 1.3284826537080918,
    "visible_dispersion_n380_minus_n780": 0.01662803774917454,
    "normal_incidence_fresnel_reflectance_589_3_nm": 0.020358299712203928,
    "mean_surface_reflectance": 0.025577688410273282,
    "mean_surface_transmittance": 0.9744223115897266,
    "maximum_surface_slope": 0.44193340842966267,
    "median_caustic_luminance_contrast": 1.3266393161449925,
    "minimum_caustic_luminance_contrast": 1.2622542146748068,
    "metamer_max_xyz_difference": 1.4210854715202004e-14,
    "metamer_relative_spectral_difference": 0.7092860910007521,
    "observer_rank": 3,
    "observer_sampled_spectral_nullity": 38,
    "phase_blind_intensity_difference": 6.661338147750939e-16,
    "display_tick_alias_error": 1.29021793249251e-13,
    "ray_wavelength_exposure_samples": 48988800,
    "optical_frequency_low_thz": 384.3493051282051,
    "optical_frequency_high_thz": 788.9275210526315
  },
  "claim_ceiling": {
    "supported": [
      "the declared classical interface obeys Snell refraction and Fresnel energy partition",
      "a moving constructed water surface generates a time-varying spectral caustic under a fixed distant source",
      "the finite CIE observer maps distinct nonnegative spectra to the same XYZ response",
      "the 60 fps movie is a display of exposure-averaged irradiance"
    ],
    "not_supported": [
      "a one-to-one model of an individual human retina or visual cortex",
      "recovery of every physical observable through human vision",
      "a hologram or reconstruction of the optical wavefront phase",
      "individual quantum photon trajectories",
      "a physical fourth/fifth-dimensional generator or universal grid/tick"
    ]
  }
}