Barzabel 9abdd74c1b model: one per-file glTF read budget for every accessor read (#2139) ...

Review of #2158: a buffer-backed accessor is checked against its buffer, but
each primitive that references it reads it again and keeps its own copy, so a
3 MB file listing 50,000 references to one 100,000-vertex accessor asked for
about 80 GB. Every accessor read, with or without a bufferView, is now
charged to one budget for the whole file, as is what a primitive keeps
besides its reads: generated indices when `indices` is missing, the triangle
list (3(k-2) for a strip or fan of k), flat-normal vertices and computed
tangents. Going over it is the usual malformed-file error.

The cap is a fixed 2^28 components (about 1 GiB as f32/u32), not a multiple
of the buffer size: real assets share one vertex buffer across many
primitives, and a 10M-triangle scan reads about 90M components. Buffer-less
accessors keep their tighter 16M sub-budget.

2026-10-26 20:38:03 +03:00

..

src

model: one per-file glTF read budget for every accessor read (#2139)

2026-10-26 20:38:03 +03:00

tests/fixtures

M7.4: model import

2026-10-02 21:04:47 -04:00

Cargo.toml

Merge follow-up: model description and gaps row 17 after the import PRs

2026-10-12 03:20:48 -04:00