How do you make a 2D image 3D in Paint 3D?

You can make a 2D image appear 3D in Paint 3D by converting points on the image into a 3D object. The video "Lecture 9: Creating 3D object from 2D image using Paint 3D" demonstrates this process.

Here's how the process works, based on the reference video:

1. Select Points: Click on points in the 2D image that you want to convert to 3D. The video mentions clicking on different points to define the 3D shape.
2. Convert to 3D: As you select points, Paint 3D will use them to create a 3D object. The video shows how clicking on a sequence of points (e.g., I, H, G) contributes to defining the 3D structure.