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#783: Object Matte effect from a point / box prompt, tracked

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Problem: After Effects 26.2's Object Matte (pick an object with a click,
optionally a box, get a matte that follows it) had no counterpart; only
stroke-driven Roto Brush existed.

Fix: an Object Matte effect (Effect > Matte, ec.matte.objectmatte) turns
the Object Point (and optional box) on a Reference Frame into Roto Brush
strokes and segments them with Roto Brush's engine, content-keyed cache
and the model chosen in Settings > Roto Brush (MobileSAM, classical graph
cut without it). Track Object carries the matte frame by frame up to 600
frames each way; otherwise every frame is segmented on its own. Feather,
Contrast, Shift Edge, Invert and a Matte view. The engine keeps its Input
Key current so upstream edits recompute it. objectMatte.apply creates one
from agents / the CLI. Unusable prompts pass the layer through.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
This commit is contained in:
vangel76andClaude Opus 5.5 committed 2026-10-11 13:32:10 +02:00
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commit 953fbbc730
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docs/effects.md
+4 -3
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@@ -3,11 +3,11 @@
<!-- Generated from the effect registry (crates/effects/src/catalog.rs); do not edit by hand.
Regenerate: UPDATE_DOCS=1 cargo test -p effectcraft-effects --lib effects_doc_is_current -->
EffectCraft ships 306 effects with 3014 parameters in total, grouped into the same categories as the Effects & Presets panel. Every effect is our own implementation, written from public behaviour descriptions and standard image-processing literature. Parameter names, order, popup options, units, defaults and ranges follow the reference application so that projects, expressions and muscle memory carry over.
EffectCraft ships 307 effects with 3028 parameters in total, grouped into the same categories as the Effects & Presets panel. Every effect is our own implementation, written from public behaviour descriptions and standard image-processing literature. Parameter names, order, popup options, units, defaults and ranges follow the reference application so that projects, expressions and muscle memory carry over.
- **GPU**: 280 effects also run on the GPU compositor with identical results.
- **32**: 306 effects process 32-bit float (HDR, overbright) pixels without clamping.
- **Status**: 306 implemented in full, 0 partial (what is missing is listed).
- **32**: 307 effects process 32-bit float (HDR, overbright) pixels without clamping.
- **Status**: 307 implemented in full, 0 partial (what is missing is listed).
Effects are addressed by id (`ec.<category>.<name>`) or display name in commands, scripts and the control channel, and every parameter by its id (`effects/#1/blurriness`).
@@ -255,6 +255,7 @@ Effects are addressed by id (`ec.<category>.<name>`) or display name in commands
|---|---|---:|:-:|:-:|---|
| Matte Choker | `ec.matte.mattechoker` | 7 | GPU | 32 | Implemented |
| Mocha shape | `ec.obsolete.mochashape` | 6 | | 32 | Implemented |
| Object Matte | `ec.matte.objectmatte` | 13 | | 32 | Implemented |
| Refine Hard Matte | `ec.matte.refinehard` | 16 | GPU | 32 | Implemented |
| Refine Soft Matte | `ec.matte.refinesoft` | 18 | GPU | 32 | Implemented |
| Roto Brush & Refine Edge | `ec.matte.rotobrush` | 24 | | 32 | Implemented |