Choose your destination directory and click export. The add-on will validate your model and alert you if any required bones or settings are missing. Method 2: Converting via Unity and UniVRM
For a file to export as a VRM, it must have a valid humanoid armature (skeleton). Select your character's skeleton. In the Properties panel on the right, find the tab.
Before converting, it's wise to check your GLB model's compatibility. For a successful conversion, your model should ideally have:
Several web-based utilities offer drag-and-drop GLB-to-VRM normalization, though they offer limited flexibility if your skeleton mapping contains unique or non-standard bone names. Troubleshooting Common Conversion Issues convert glb to vrm
Configure for hair/clothing physics and BlendShapes for facial expressions. Export using the VRM Exporter menu. 2. The Blender Workflow (Without Unity)
If you are developing a game or integrating assets for VRChat or VTubing software, utilizing Unity with the UniVRM package is a highly reliable pipeline. Step 1: Set Up Your Unity Project
: Hand or foot placement is incorrect when animations are applied. Choose your destination directory and click export
: Many VRM-compatible apps have limits (often around 32,000 to 70,000 triangles). Use Blender’s "Decimate" modifier if your GLB is too heavy. Further Exploration Learn about Spring Bones BlendShapes in the official VRM Documentation See how to automate conversions using the VRM Add-on Python API for batch processing. Watch a visual walkthrough on How To Convert GLB to VRM for common troubleshooting tips. for your new VRM avatar? VRM format / VRM Add-on for Blender
Certain model features can cause problems across different platforms:
As the virtual reality and VTuber ecosystems expand rapidly, the ability to convert 3D models between different file formats has become an essential skill for creators. Among the most common conversion tasks is transforming a GLB file into a VRM file—a process that enables standalone 3D assets to become fully functional, expressive avatars for platforms like VRChat, VIVERSE, and VTubing software. This comprehensive guide will walk you through everything you need to know about converting GLB to VRM, including the methods, tools, best practices, and troubleshooting tips. Select your character's skeleton
Conversely, you can also rename .vrm to .glb to open a VRM file in most GLB viewers. However, this will discard the VRM‑specific metadata such as blendshapes and licensing. For a proper conversion that preserves textures and bone structure, you can use Blender to export a VRM as GLB, or use Unity's GLTF export tools.
October 26, 2023 Subject: Workflow and Tools for Converting GLB (glTF) Files to VRM Format
