When building a 3D model from 2D images, you’ll need multiple photos of the object (from all angles—top, bottom, sides) and image-to-3D software to convert them into a 3D mesh.
The software first aligns the photos to match overlapping features, then reconstructs the object’s geometry (shape) from the visual data. It then maps the original image textures onto the 3D surface to add realistic details.
For beginners, try free tools like Meshroom—use a small, well-lit object (e.g., a mug) and take 20-30 photos for more accurate results.