Bruno-Alumn cfbd109534 LR-MASK-OBJECTS: a SAM 3 checkpoint in Meta's original format is named as such, not as an unsupported dtype (#3378) ...

The sam3.safetensors on community mirrors (AEmotionStudio/sam3,
1038lab/sam3) is a conversion of Meta's original sam3.pt: its tensors
keep Meta's names, and its RoPE tables are C64. Renamed to
model.safetensors, it failed to load with "unsupported dtype
Some("C64")", which read like a LightCraft limitation.

Weights::open now lists a tensor of another dtype instead of failing
the whole file; reading it fails with the dtype error (LightCraft
computes RoPE itself and never reads those tables). Sam3::load_on then
checks the format: when the backbone's first tensor in Hugging Face
naming is missing and the file has Meta's detector.backbone. or
tracker. tensors, the error says it is Meta's original checkpoint and
that model.safetensors from facebook/sam3 in the Hugging Face format
is needed. docs/ai-masks.md says so for installing by hand.

2026-10-30 13:25:37 +01:00

..

examples

M12: SAM 3 Object and Describe masks (pure Rust, Metal)

2026-10-06 20:15:04 -03:00

src

LR-MASK-OBJECTS: a SAM 3 checkpoint in Meta's original format is named as such, not as an unsupported dtype (#3378)

2026-10-30 13:25:37 +01:00

tests/it

CI: one test binary per crate, line tables only, one WASM check (#2710)

2026-10-23 13:34:30 -04:00

Cargo.toml

feat(testkit): #1037 tests record why they skip

2026-10-11 16:33:54 -05:00