Carry property, Font and Media Replacement overrides into the collapsed nested EvalCtx so nested layers render beyond the precomp frame instead of falling back to a clipped, flattened image. Key the layer cache on instance overrides to keep distinct collapsed instances isolated.
CC Composite stays After Effects-pure: its Layer parameter is gone, so
parameter indices match AE again (scripts and expressions that address
parameters by index). The model reference lives in its own effect,
ec.3d.instance3d (3D Channel, CPU, one layer parameter), which replaces
the layer's pixels with the referenced layer's render — alpha included.
A referenced model's solo render is now hashed into the owner's cache key
instead of declining the entry (Bflat, review of #2410): the layer, its
animated values and transform, the mesh item, the comp camera and lights,
draft 3D, the renderer setting and the in/out gate. Covered by a render
test: the copy is cached, served on the second render, and re-rendered
when the camera pans or the model leaves its in/out range.
PR #2491 moved the modules; the instance3d changes follow the new layout:
- tests_instance3d.rs lives in src/tests/instance3d.rs now (declared in src/tests.rs)
- solo_3d moved from render/src/lib.rs to render/src/pipeline.rs, pub(crate),
and its FxHost::layer caller moved to render/src/fx_host.rs
- cmd/create.rs, effects/channel2.rs, gpu/fx_pixel2.rs and render/cache/dependencies.rs
followed their moves automatically (rename detection)