Okay, so imagine you are drawing a picture of a house on a piece of paper. You draw the front of the house and the sides, but it still looks like it is flat and not really like a real house with depth. Now imagine you could add a third dimension to the picture by making some parts of the picture stick out from the paper. That's what we call 2D-plus-depth!
To create a 2D-plus-depth image, we need a special camera that can capture how far away different parts of the image are from the camera. This is called depth. Then, using a computer, we can combine the 2D image with the depth information to create a picture that looks more realistic and has more depth.
For example, if we took a picture of a tree with a 2D-plus-depth camera, the computer could make the leaves look like they are further away from the camera than the trunk. This makes the picture look truly three-dimensional.
2D-plus-depth technology is used in many different things like video games, movies, and virtual reality. It helps make the images look more realistic and immersive. So next time you see a cool 3D image or movie, remember that it might be using 2D-plus-depth technology to make it look that way!