Unfortunately, you cannot rotate a picture in 3D Paint. 3D Paint is a 2D drawing program, meaning it can only handle images in two dimensions. You can only rotate pictures in 3D Paint by using the "Rotate" tool, which only allows you to rotate the image by 90 degrees.
To rotate a picture in 3D, you will need to use a 3D modeling program like Blender, Maya, or 3ds Max. These programs allow you to rotate objects in 3D space using various tools and techniques.
Here are some general ways to rotate images in 3D modeling programs:
- Using the Rotate Tool: This tool lets you rotate objects around the X, Y, or Z axis.
- Using the Pivot Point: You can set a pivot point around which the object rotates.
- Using Keyboard Shortcuts: Many programs have keyboard shortcuts for rotating objects.
You can find detailed tutorials and documentation on using 3D modeling programs online.