tonemap_aces — 3D `render` op

• Data kinds: image2d → image2d

• Call: import fullseye as fs; fs.ledger.tonemap_aces(hdr, exposure: 'float' = 1.0) -> 'np.ndarray' (to call the implementation directly, import render_tonemap; render_tonemap.tonemap_aces(hdr, exposure: 'float' = 1.0) -> 'np.ndarray'; from the registry, ops3d.get("tonemap_aces"))

Usage

Compress HDR into `[0, 1]` LDR with the ACES filmic approximation (Narkowicz 2015). → float64.

> The detailed description below is the original text — the summary and the headings are translated.

`x = hdr * exposure に対し f(x) = x(a x + b) / (x(c x + d) + e)` を適用する。

フィルム的な S 字カーブで暗部を持ち上げハイライトを緩やかに巻き取り、映像制作標準の

「見栄え」を出す。`x < ~7.24` の範囲では狭義単調増加・出力 < 1(それ以上は 1 に

飽和しクリップ)。カラー `(H, W, C)` はチャンネル独立に写像する。

Args:

hdr: HDR 画像。`(H, W) or (H, W, C)`、放射輝度 >= 0。

exposure: 写像前に掛ける露出スケール(正)。

Returns:

`[0, 1]` の float64 LDR 画像(入力と同形状)。

Raises:

ValueError: 空/非有限/負の放射輝度、非正の exposition(fail-closed)。

Background guides (the physics and conventions behind this op)

• blender_interop — Blender との併用 — 形を作って fullseye で測る(軸・単位・正解データの罠)

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

Runnable examples (verified samples that actually call this op)

• render_tonemap — py -3.11 examples_3d/render_tonemap.py

Ops the type connects to (they accept `image2d` as input)

fuse_to_voxel · fit_poly_surface · eval_poly_surface · surface_form_error · background_flatten · polar_unwrap · fit_zernike · matcap_shade

Same category (`render`)

project_points · render_point_depth · render_volume_projection · render_shaded · ambient_occlusion · cast_shadow · phong_shade · matcap_shade

*Provenance: render_tonemap.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

tonemap_aces — 3D render op