Amazon's Virtual Try-On for Eyewear: 3D Model Requirements Sellers Must Meet
Amazon’s Virtual Try‑On for eyewear requires sellers to upload glTF (.glb or .gltf) files with exact node names (frame, L_Temple, R_Temple, L_Lens, R_Lens) and the KHR_materials_transmission extension set to OPAQUE with a transmission factor (e.g., 0.85). The model’s front must face the positive Z‑axis and the origin sit at the bridge midpoint. Compliance lifts conversion and cuts returns.
Overview
Amazon’s Virtual Try‑On lets shoppers preview eyewear on a digital replica of their face before buying. To join the program, sellers must provide 3D models that follow Amazon’s strict glTF specifications, node naming rules, material settings, and orientation standards. Meeting these technical criteria is essential for the try‑on to display correctly and to avoid rejection during the upload process.
Key Points
- File format requirement — Models must be delivered as glTF (.glb or .gltf) files; a typical submission might be named
summer2024_sunglasses.glb. - Exact node naming — Each component—frame, left temple, right temple, left lens, right lens—needs its own mesh and must use Amazon’s prescribed labels such as
frame,L_Temple,R_Temple,L_Lens,R_Lens. - Continuous‑lens exception — Products like ski goggles that have a single wraparound lens use a simplified scheme, omitting separate left/right lens nodes and labeling the lens simply as
Lens. - Transparency extension — Lens meshes must include the
KHR_materials_transmissionglTF extension, set the alpha mode toOPAQUE, and apply a transmission factor between 0 and 1 (e.g., 0.85 for a lightly tinted lens). - Orientation rule — The front of the glasses must point along the positive Z‑axis, and the model’s origin should sit at the midpoint of the bridge where the glasses rest on the nose.
How Virtual Try‑On Works
- Model upload — Sellers submit the glTF file through Amazon’s Seller Central portal; for example, uploading
classic_aviator.glbtriggers an automated validation routine. - Node parsing — Amazon’s engine reads each node name; a node called
L_Templetells the system to attach that mesh to the shopper’s left ear, whileR_Lensaligns the right lens with the corresponding eye socket.
Analysis & Recommendations
Why This Matters
A compliant 3D model enables shoppers to preview glasses on their face, which Amazon reports can increase conversion rates and lower return frequencies. Sellers must meet strict glTF specs or risk rejection, making preparation essential for ROI.
Key Takeaways
- Models must be delivered as glTF (.glb or .gltf) files, e.g., summer2024_sunglasses.glb.
- Node naming must follow Amazon’s labels: frame, L_Temple, R_Temple, L_Lens, R_Lens (or single Lens for wraparound).
- Lens meshes need the KHR_materials_transmission extension, alpha mode OPAQUE, and a transmission factor between 0‑1 (e.g., 0.85).
- Orientation rule: front of glasses points along positive Z‑axis and origin at bridge midpoint; misalignment causes tilt or floating in try‑on.
Recommended Actions
- →Audit existing 3D assets in Seller Central > Catalog > Upload Products and rename meshes to the required node names.
- →Validate the finished glTF file in a viewer such as Babylon.js Sandbox, confirming Z‑axis forward direction and bridge‑center origin.
- →Run Amazon’s Try‑On Validation tool in Seller Central > Advertising > Virtual Try‑On to get a green check for each requirement before publishing.
Comments
Join the discussion
Log in or create an account to share your thoughts on this update.
No comments yet. Be the first to share your thoughts!