Convert+glb+to+vrm+better __full__ -

Most converters ruin your GLB. Here’s how to do it — without breaking blendshapes, losing metallic maps, or mangling the bone structure.

| 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) | convert+glb+to+vrm+better

. If you export as VRM 1.0 and the app won't load it, re-export using the legacy standard. Missing Textures Most converters ruin your GLB

, conversely, is a definition of behavior. Based on glTF (the parent format of GLB), VRM extends the format to include standardized bone structures, blend shapes (morph targets) for facial expressions, and spring bones for dynamic hair and clothing physics. A VRM file tells the game engine exactly how the avatar should move, blink, and speak. If you export as VRM 1