We’re opening a small set of sandboxes for testing in preparation of introducing GLTF PBR content to the main grid. Please note, these regions are experimental – any content created or modified on these regions and then used in regions that are not materials enabled may exhibit undefined behavior and become permanently damaged. Such content should not be offered on Second Life's Marketplace until future notice. In order to view PBR materials you must use the GLTF Material Import Project Viewer.

As we roll out GLTF PBR materials in the coming weeks, expect a patchwork of support for material assets across the grid.  A quick way to tell if the region you’re on is materials enabled is to check if “Build->Upload->Material…” is enabled:

On materials enabled regions, this option will be available and allows for the import of PBR materials from GLTF assets. Only materials are imported at this time –you must still import meshes via COLLADA.  Future work will add support for GLTF scenes and models, but you can start building with GLTF PBR materials today.

Currently support is limited to a handful of regions that have been carefully selected. If you want to experiment with materials in a sandbox setting visit one of the following regions:

• Rumpus Room
• Rumpus Room 2
• Rumpus Room 3
• Rumpus Room 4
• Rumpus Room 5

Download the Viewer here
For more technical input, please file a Jira

- Second Life Viewer Team