light oprgb × rgb → rgbimport fullseye as fs; fs.ledger.light_mask(base, light, ambient=0.0) (実装を直接呼ぶなら import gfx2d; gfx2d.light_mask(base, light, ambient=0.0)、台帳から引くなら opsgfx2d.get("light_mask"))Modulate an rgb image by an rgb light map: base * (ambient + light).
ambient is the light that reaches everything; ambient=1 with a black
light map returns the base exactly, which is the identity the test suite
pins.
The product is clipped to [0, 1]; the clipped amount is not returned.
Both arguments should be in the same encoding — mixing an sRGB base with a
linear light map is the second silent-error trap of this family, and the
only defence is that both arguments are named.
py -3.11 examples/gfx2d_scene.pyrgb を入力に取れる)srgb_to_linear · linear_to_srgb · blend_mode · normal_map_decode · bloom · vignette · chromatic_aberration · film_grain
light)radial_light · normal_map_decode · normal_map_shade · shadow_cast_2d
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.