tb_env_studio — 2D typed op

Data kinds: pointssignal

Call: fullseye.apply(img, "tb_env_studio", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

*No figure: this op takes points as input. A Studio program starting from an image cannot reach that type — see the runnable examples below for how it is used.*

Usage

Radiance of a studio environment (direction -> brightness). Achromatic.

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

ソフトボックス 2 枚 + 天空の勾配 + 細い水平の帯。色を付けないのは、金属の色が

環境ではなく Fresnel(n, k) から出ていることを絵の中で保証するため。

`directions` は (..., 3) の単位ベクトル(z 上向き)。返り値はその形の (...,)。

2-D 進化レジストリへ橋渡しした optics の op `env_studio。実装は同じで、呼び出し規約だけ op(v, a, b) に合わせてある。akey(既定 12)、bfill`(既定 3.2)を振る。

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)

• (none yet)

Ops the type connects to (they accept signal as input)

identity · tb_create_funct_1d_array · tb_smooth_funct_1d_gauss · tb_smooth_funct_1d_mean · tb_derivate_funct_1d · tb_integrate_funct_1d · tb_zero_crossings_funct_1d · tb_abs_funct_1d

Same category (typed)

tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_angle_3points · tb_project_points · tb_render_point_depth · tb_statistical_outlier_removal · tb_radius_outlier_removal


*Provenance: ops.py — 2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.