Objects: implement primitives, texture entries, materials, media, and particles #68

New Issue

2026-08-08T08:21:44Z

hugo commented

2026-08-08 08:21:44 +00:00

Objective

Implement primitive construction/state plus texture entries, object media, legacy/GLTF materials, particle systems, light/flexible/sculpt data, and OSD conversions.

Deliverables

Preserve bitfields, default values, face overrides, UV/color/material semantics, unknown bits, serialization, equality/hash, and copy behavior.
Use bounded checked decoding for variable blobs.
Keep data/model behavior independent from ObjectManager transport.

Validation

Primitive/texture/material/media/particle tests pass.
Golden bytes/OSD round trips match.
No public model shim remains in the owned scope.

Prerequisite

Networking/client lifecycle and the earlier world model/manager issues are available; mapped APIs and translated tests are fixed.

Project constraints

New native Rust behavior only; no bridge or C# fallback.
Preserve fixed APIs and translated assertions; reuse completed lower layers and keep privileged live actions opt-in.
Validate bounded untrusted inputs, cancellation, task cleanup, docs, and coverage in the same change.

## Objective Implement primitive construction/state plus texture entries, object media, legacy/GLTF materials, particle systems, light/flexible/sculpt data, and OSD conversions. ## Deliverables - Preserve bitfields, default values, face overrides, UV/color/material semantics, unknown bits, serialization, equality/hash, and copy behavior. - Use bounded checked decoding for variable blobs. - Keep data/model behavior independent from ObjectManager transport. ## Validation - Primitive/texture/material/media/particle tests pass. - Golden bytes/OSD round trips match. - No public model shim remains in the owned scope. ## Prerequisite Networking/client lifecycle and the earlier world model/manager issues are available; mapped APIs and translated tests are fixed. ## Project constraints - New native Rust behavior only; no bridge or C# fallback. - Preserve fixed APIs and translated assertions; reuse completed lower layers and keep privileged live actions opt-in. - Validate bounded untrusted inputs, cancellation, task cleanup, docs, and coverage in the same change.

hugo added this to the 09 - World vertical slices milestone 2026-08-08 08:21:44 +00:00

hugo added the enhancement label 2026-08-08 08:21:44 +00:00

hugo referenced this issue from a commit

2026-08-10 13:32:18 +00:00

Implement native object models (#68)

hugo commented

2026-08-10 13:32:49 +00:00

Implemented and verified in commit 43820f6.

Implementation:

Replaced failure-only Primitive, ConstructionData, FlexibleData, LightData, LightImage, SculptData, ObjectProperties, TextureAnimation, TextureEntry, TextureEntryFace, ParticleSystem, and LegacyMaterial shims with native Rust models.
Added checked bounded decoding for texture entries, particle blocks, and extra parameters, including preservation of unknown extra-parameter payloads and particle/material/media flag bits.
Implemented all 45 texture faces, live default inheritance, per-face overrides, render material IDs, deterministic byte and OSD round trips, copy/equality/hash behavior, primitive classification, auxiliary data, particle legacy/extended formats, and helper codecs.
Kept model behavior separate from ObjectManager transport and retained existing native MediaEntry and AssetMaterial implementations.
Updated generated API mappings and coverage from 225 types / 15,463 members to 237 types / 15,757 members.

Verification:

6 focused native object-model unit tests passed.
world_object_semantics: 26/26 passed.
AssetMaterial capability cases: 10/10 passed.
AssetMaterial override/document cases: 13/13 passed.
Native object-model wire/API marker case passed.
API compile workspace passed.
libremetaverse library clippy passed with warnings denied.
Native codegen gate, generated shim freshness, rustfmt, and diff checks passed.

Implemented and verified in commit 43820f6. Implementation: - Replaced failure-only Primitive, ConstructionData, FlexibleData, LightData, LightImage, SculptData, ObjectProperties, TextureAnimation, TextureEntry, TextureEntryFace, ParticleSystem, and LegacyMaterial shims with native Rust models. - Added checked bounded decoding for texture entries, particle blocks, and extra parameters, including preservation of unknown extra-parameter payloads and particle/material/media flag bits. - Implemented all 45 texture faces, live default inheritance, per-face overrides, render material IDs, deterministic byte and OSD round trips, copy/equality/hash behavior, primitive classification, auxiliary data, particle legacy/extended formats, and helper codecs. - Kept model behavior separate from ObjectManager transport and retained existing native MediaEntry and AssetMaterial implementations. - Updated generated API mappings and coverage from 225 types / 15,463 members to 237 types / 15,757 members. Verification: - 6 focused native object-model unit tests passed. - world_object_semantics: 26/26 passed. - AssetMaterial capability cases: 10/10 passed. - AssetMaterial override/document cases: 13/13 passed. - Native object-model wire/API marker case passed. - API compile workspace passed. - libremetaverse library clippy passed with warnings denied. - Native codegen gate, generated shim freshness, rustfmt, and diff checks passed.

hugo closed this issue

2026-08-10 13:32:59 +00:00

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Reference: hugo/MetaCrate#68