glTF-Blender-IO-EXT-mesh-gpu-instancing is a Blender addon for glTF EXT_mesh_gpu_instancing extension on top of glTF-Blender-IO addon.

>= 3.4

The addon enables to export instanced geometries created with Geometry Nodes as glTF assets with the glTF EXT_mesh_gpu_instancing extension in Blender.

Import support is work in progress.

Ensure the glTF-Blender-IO addon is installed and enabled in your Blender because the glTF-Blender-IO-EXT-mesh-gpu-instancing addon works on top of it. You can check it by Edit -> Preferences -> Add-ons -> "glTF 2.0" in the search bar. The glTF-Blender-IO addon should be listed as Import-Export: glTF 2.0 format. It should be installed and enabled by default.

Download the zip archived source code from the Releases.

Install the glTF-Blender-IO-EXT-mesh-gpu-instancing addon to your Blender via Edit -> Preferences -> Add-ons -> Install -> Select the downloaded file

Ensure the addon is installed and enabled. You can easily find the addon by inputting "EXT_mesh_gpu_instancing" in the search bar. Check the checkbox to enable the addon.

Create instanced geometries with Geometry Nodes. Note that "Realize instances" node is not needed.

Export the asset as glTF with "Apply Modifiers" export option checked.

You will get glTF having EXT_mesh_gpu_instancing extension.