vangel76andClaude Opus 5.5 4fc7b52351 #783: Object Matte passes its box to the model as a box prompt ...

Problem: with a trained model installed, Object Matte's optional box reached
MobileSAM only as background points along the box's edges (an approximation),
although the model's prompt encoder takes a box prompt directly.

Fix: a new Roto Brush stroke kind, Box (two opposite corners), that
stroke_prompt turns into the model prompt's bbox (scaled to the matte grid,
corners in any order, degenerate or non-finite boxes ignored). The graph cut
never rasterizes it. Object Matte emits it instead of the edge strokes when a
model segments; the classical fallback keeps the edge strokes. A prior matte's
box no longer replaces a box the user drew on that frame.

Tests: effects object_matte::the_box_reaches_the_model_as_a_box_prompt (a
stand-in model sees the box, at full and half resolution, and no edge points);
track roto::tests::box_stroke_is_the_model_box_prompt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-11 13:38:10 +02:00

..

src

#783: Object Matte passes its box to the model as a box prompt

2026-10-11 13:38:10 +02:00

Cargo.toml

M13.35: Roto Brush trained model — swappable segment module, MobileSAM in pure Rust

2026-10-05 17:55:02 +07:00