radiosity optable × table × table → tableimport fullseye as fs; fs.ledger.render_optscene_gi(scene, camera, lights, bounces=None, patch_mm=2.0, outer_mm=None, tol=1e-06, n_quad=3, supersample=1, study_bounces=8, study_tol=0.01) (実装を直接呼ぶなら import radiosity3d; radiosity3d.render_optscene_gi(scene, camera, lights, bounces=None, patch_mm=2.0, outer_mm=None, tol=1e-06, n_quad=3, supersample=1, study_bounces=8, study_tol=0.01)、台帳から引くなら opsoptics.get("render_optscene_gi"))Inspection render with interreflection: the photometry of render_optscene plus n bounces (or the converged sum) between Lambertian patches.
The same scene (optscene.scene_*), camera (optical_camera) and lights
(illumdesign.light_source results) as :func:optscene.render_optscene. The
direct part is computed with the very same irradiance function, so
bounces=0 reproduces render_optscene exactly (a test gate). On top of it
the surfaces are cut into patches (:func:radiosity_patches, at most patch_mm
inside pockets and outer_mm (default patch_mm) elsewhere
on a side), their view factors computed with occlusion
(:func:form_factor_matrix), and the light reflected between them added:
bounces=None — converged, by progressive shooting
(:func:radiosity_progressive_3d, stop at residual energy tol);bounces=k — the Neumann partial sum: light that bounced at most k
times between surfaces before reaching the camera (0 = direct only,
1 = one interreflection).Each pixel’s interreflected irradiance is gathered from the patch radiosities
with the point-to-polygon closed form at the pixel’s own surface point
(final gather, one visibility ray per patch), so it is smooth inside a patch.
Pixel radiance = ρ/π (E_direct + E_interreflected) in the same linear units as
render_optscene. Light intensity enters linearly (the geometry is cached by
a SHA-256 of the scene’s shapes, camera and patch size — materials and light
intensity are read on every call, so a calibration loop that varies albedo or
intensity re-solves only the radiosity).
study_bounces K > 0 adds a bounce study: the images after 0..K bounces,
the increment of each (max abs change / image peak), the observed ratio of
successive increments g (the geometric analogue of an observed order of
convergence), a GCI-style estimate 1.25 · Δ_k g/(1 − g) of what the remaining
bounces still add, whether k is in the asymptotic range (g moved by at most
5 % at k and at k − 1; before it the estimate can be optimistic), the actual error
against the converged image, and bounces_needed = the first k in the
asymptotic range whose GCI estimate is below study_tol.
Returns a dict (table) with kind = "gi_render", image (H, W, 3),
direct (H, W, 3, identical to render_optscene), difference (H, W, 3)
= image − direct (the interreflection map), indirect_share (H, W),
bounces, converged, n_shots, unshot_history, n_patches,
patch_radiosity (N, 3), bounce_study (list of rows, or None),
bounces_needed and notes.
Raises ValueError: an empty scene, or an unsupported one (see :func:radiosity_patches:
Lambertian boxes, box-minus-box pockets, finite planes; an infinite plane only
black); no lights; bounces not None or an integer in [0, 1000]; bad
patch_mm, tol, n_quad, supersample, study_bounces or study_tol; an
all-zero image (as render_optscene).
optics の全 op は入力を検証してから計算する(黙って通さない):
_mm / _um / _deg / _mrad。mm と µm の取り違えは crash ではなく「もっともらしく間違った答え」なので、名前で防ぐ。大きさから単位を推測する処理は一切しない。ValueError — float('50') は成功してしまうため、未パースの設定値が長さとして通り抜ける(実測: thin_lens('50', '200') がもっともらしい 66.667 mm を返していた)。bool も True == 1 の暗黙昇格として拒否。ValueError(実数枠のみ。虚部の無言切り捨て・マスク剥がしを拒否)。NaN/Inf は全入力で ValueError。depth_of_field の過焦点距離以遠の far_mm = inf(それが過焦点距離の定義)と gaussian_beam のウエストでの wavefront_radius_mm = inf(平面波面の曲率半径)。どちらも有限の相棒(far_is_infinite / curvature_per_mm)を併せて返す。それ以外の無言 NaN/Inf は内部で検出して ValueError —「float64 が溢れた」と「答えが無限大」は別の主張なので、後者の顔で前者を返さない。optics.MAX_GRID(4096)、供給された場/PSF/開口は optics.MAX_FIELD_ELEMENTS(2^24)、ABCD 素子列は optics.MAX_SYSTEM_ELEMENTS(1024)、Zernike は MAX_ZERNIKE_TERMS(512)/ MAX_ZERNIKE_ORDER(40)/ MAX_ZERNIKE_BASIS(2^25)。小さな引数から巨大な内部確保が起きる経路(実測: n_max=40 × 4096² で 108 GB)を fail-closed で塞ぐ。| 物理的に不可能な状態も拒否: 偏光度 > 1 の Stokes ベクトル、負の透過率、負の強度、n- | m | が奇数などの不正な Zernike 添字。 |
py -3.11 examples/poc_pocket_interreflection.pytable を入力に取れる)abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd
radiosity)form_factor_parallel_rects · form_factor_perpendicular_rects · form_factor_polygons · radiosity_patches · form_factor_matrix · radiosity_progressive_3d
Provenance: radiosity3d.py — OPTICS operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.