Okay kiddo, you know how when you go on the computer, you can go to websites and see pictures and videos and play games? Well, sometimes people want to make 3D pictures and games that you can move around in and explore, but they need special help to do it.
That's where the Web3D Consortium comes in! They are a group of grown-up computer experts who work together to make it easier for people to make and use 3D pictures and games on the internet.
They come up with rules and standards, kind of like how your classroom has rules to make sure everyone is safe and knows what to do. They want to make sure that when you go to a website with 3D stuff, it works well and is fun and easy to use.
So, the Web3D Consortium helps make the internet even better and more exciting by making it easier to use 3D stuff. Cool, right?