Convert+glb+to+vrm+better

| Problem | Naïve result | “Better” solution | |--------|--------------|------------------| | Wrong bone orientation | Twisted arms/legs | Recursively reorient bones to VRM’s T-pose axes (+Y up, +Z forward, +X right) | | Missing blend shapes | No facial expression | Map GLB morph targets to VRM preset names (e.g., mouthSmile → AA ) | | Extra bones (wings, tail) | Discarded or broken | Keep as “unknown bones” under hips/chest | | No humanoid rig | Conversion fails | Auto-rig using heuristic (knee bend direction, shoulder spacing) | | Texture mismatch | Pink/missing materials | Convert glTF PBR → MToon (VRM standard shader) |

By following these tips and guidelines, you can unlock the full potential of VRM and create immersive VR experiences that engage and inspire your audience. convert+glb+to+vrm+better

Open Unity Hub and create a new project using the template (Unity 2021 LTS or 2022 LTS is recommended). | Problem | Naïve result | “Better” solution

For example, for the Blink expression, slide the Blink_L and Blink_R shape keys to 1.0 . Preview the expression to ensure it looks natural. Step 5: Add Spring Bone Physics (Hair & Clothes) Preview the expression to ensure it looks natural