Beginners upload a GLTF 3D model by gathering all linked files (GLTF + textures/.bin), choosing a user-friendly platform (like Sketchfab), using its upload tool to select the GLTF, adding basic details (title, description), previewing, and publishing.
GLTF models rely on linked assets—keep all files in one folder to avoid missing textures/.bin that break the model. Platforms like Sketchfab guide beginners with simple prompts, so you won’t get stuck. Pre-check with a free GLTF viewer (e.g., Babylon.js Sandbox) to fix issues before uploading—this saves time.