post opなし → lut(引数だけで決まる op —— 画像やデータの入力を取らない)import fullseye as fs; fs.ledger.color_lut(size=17, gain=(1.0, 1.0, 1.0), lift=(0.0, 0.0, 0.0), gamma=(1.0, 1.0, 1.0), saturation=1.0) (実装を直接呼ぶなら import gfx2d; gfx2d.color_lut(size=17, gain=(1.0, 1.0, 1.0), lift=(0.0, 0.0, 0.0), gamma=(1.0, 1.0, 1.0), saturation=1.0)、台帳から引くなら opsgfx2d.get("color_lut"))Build a 3-D colour LUT, (n, n, n, 3) indexed [r, g, b].
out = clip(lift + gain * in**gamma) per channel, then saturation is
applied about the Rec. 709 luma. With all defaults this is the identity
LUT, and because trilinear interpolation is exact for a function that is
linear in each variable, :func:color_grade with the identity LUT is the
identity to float64 rounding (measured maximum 3.3e-16 at size 17 and
2.2e-16 at size 2) — the property the suite uses to prove the interpolation
itself is right before testing any grade.
py -3.11 examples/gfx2d_scene.pylut を入力に取れる)post)bloom · vignette · chromatic_aberration · film_grain · color_grade · dither · palette_quantize
Provenance: gfx2d.py — GFX2D 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.