Meta SAM 3D Objects integration notice

The mixture-of-transformers sparse-structure flow, condition embedders, image, mask and pointmap preprocessing, layout
decoding, sparse-structure pruning and downsampling, sampler settings, and checkpoint key mapping in this directory are
modified from:

  facebookresearch/sam-3d-objects
  https://github.com/facebookresearch/sam-3d-objects
  revision f91db411c50efee93d8db7aeb323885650f6f722

Those portions are SAM Materials provided under the accompanying SAM License (LICENSE-SAM):

  SAM License, Last Updated: November 19, 2025
  Copyright (c) Meta Platforms, Inc. and affiliates.

The SAM License is not an open-source license; it restricts certain uses and requires that a copy of it accompany any
redistribution of SAM Materials or derivative works. If you publish research results obtained with these materials,
you must acknowledge their use. All ported source files carry a prominent modification notice.

The released checkpoint (facebook/sam-3d-objects) is distributed by Meta under the same SAM License and is not
included in this package. It embeds DINOv2 ViT-L/14 (with registers) image encoders; DINOv2 was originally released
by Meta under the Apache License 2.0.

The TRELLIS stages this family reuses (sparse-structure decoder, structured-latent flow, Gaussian and mesh decoders,
scheduler) live in ../trellis and keep their MIT License and notice. Independently written diffusers-3d package glue
remains under the package Apache-2.0 license. No affiliation, sponsorship, or endorsement by Meta is claimed.