: Swap standard shaders for MToon , the specific shader used by VRM to get that high-quality "anime" or "stylized" look.

Depending on your technical comfort level, there are three primary paths to conversion: 1. The Professional Method: Blender + VRM Add-on

Full access to the UniVRM toolset for "Normalizing" the model and setting license/copyright metadata.

A standard .glb (GLTF 2.0) file is great for generic 3D models, but it doesn't understand what a "human" is. The VRM format adds a specific "humanoid" layer that includes:

Ensure textures are in PNG or JPEG format. GLB often packs these, so if they disappear, you may need to manually re-extract and plug them into a Principled BSDF or MToon shader. B. Bone & Expression Mapping

: Use GLB Optimizer or ZenCompress to keep textures under 2K-4K resolution to prevent lag in VR apps.