3ds Max Plugin

The Glossi Max Exporter turns a V-Ray scene into a clean, Glossi-ready GLB - validating the scene, converting V-Ray materials to standard PBR, and optionally decimating very heavy meshes - and can upload the result straight to your workspace.

Works with 3ds Max 2021 and newer on Windows.

Install

1. Download the Glossi Max Exporter package from Glossi.
2. Double-click Install.bat (or run install\install.ps1 from PowerShell).
3. Restart 3ds Max. A Glossi menu appears in the main menu bar.

Export and upload

1. Open Glossi > Export as GLB (for Glossi).
2. The dialog validates your scene immediately - fix any blockers it reports (it checks materials, textures, and geometry before anything is written).
3. Paste your workspace API key into the Glossi API key field and click Test - you should see Connected to <your workspace>. This is remembered for next time. (See App Plugins Overview for how to create a key.)
4. Click Export & Upload to Glossi.

Max is briefly unresponsive while the GLB exports (seconds to a few minutes for heavy scenes - this is normal). The upload then runs in the background with progress in the dialog's banner. When it completes, the model is in Library > Models, processed and READY.

The plain Export as GLB button still works exactly as before if you only want the file on disk. And if an upload fails, the exported GLB is always kept on disk so nothing is lost - fix the issue and upload again.

What the conversion handles

• V-Ray materials to PBR - base color, metalness, roughness (from reflection glossiness), and normal strength, including Multi/Sub-Object and 2-sided materials.
• Translucency - VRay2SidedMtl shading (e.g. lampshades) carries into the GLB as backlit-fabric translucency.
• Normal-map correction - grayscale height maps sitting in normal slots are converted to true tangent-space normal maps.
• Heavy-mesh decimation - optional ProOptimizer pass for very dense meshes above the face-count threshold.
• Non-destructive - your scene is snapshotted and fully restored after export; the .max file is untouched.

Troubleshooting

• "Invalid API key" - the key was revoked, expired, or mistyped. Create a fresh one in Workspace Settings > API Keys.
• Validation blockers - the report lists exactly what to fix. You can tick Export anyway to override, but expect material issues in Glossi.
• Upload failed - the GLB is still in your output folder; check your network connection and click Export & Upload to Glossi again, or upload the file manually in the web app.