RealSense D435 visualization asset — source and attribution

Source repository: https://github.com/realsenseai/realsense-ros
Pinned commit: 7a87097c499e3b0b69518d54a8e7a9ac1924e87c
Original file: realsense2_description/meshes/d435.dae
Original file URL:
https://github.com/realsenseai/realsense-ros/blob/7a87097c499e3b0b69518d54a8e7a9ac1924e87c/realsense2_description/meshes/d435.dae
License: Apache License, Version 2.0 (package.xml and repository LICENSE).
Copyright 2023 RealSense, Inc. All Rights Reserved.
This copyright line is retained from the package's corresponding _d435.urdf.xacro.
The source DAE itself has no embedded copyright notice.

Included: D435-LICENSE.txt and D435-UPSTREAM-NOTICE.md preserve the repository
license and upstream notices. The latter is the full repository notice document;
this asset does not incorporate the unrelated software components described there.

Changes for this website (2026-10-24):
- Deterministic COLLADA vertex/triangle conversion into Blender and glTF.
- Coordinate conversion derived from the official bottom_screw_frame transform.
- Weld coincident CAD vertices; remove zero-area sliver faces in web version.
- Limited mesh simplification for delivery; all 18 source geometries retained.
- Reconstruct smooth/crease shading and author silver/graphite/optical PBR materials.
  Original official DAE has one grey material and no textures. These materials
  are authored visual approximations; no claim of official texture recovery.
- No replacement shell, fabricated camera body, concept bracket, or scaling.

Dimensions: official D435 specification 90 x 25 x 25 mm. Original CAD bounds
approximately 89.914 x 25 x 25.055 mm, preserved within web simplification tolerance.
Units: metres. glTF Y-up; front +Z; root at official bottom screw mount.
This visualization and integration do not imply RealSense endorsement or a
verified electrical/mechanical integration with the illustrated robot.

Specification reference:
https://store.realsenseai.com/buy-realsense-depth-camera-d435.html