Tessellation shader

Hello! Let me explain to you what a tessellation shader is.

Picture a piece of paper with a bunch of squares on it. If you wanted to draw a curved line on that paper, you might need to cut out a bunch of those squares and glue them together to create a curve. That's kind of like what a tessellation shader does.

In simple terms, a tessellation shader is a program that takes in a bunch of triangles and then creates more triangles in between them to make a surface look smoother or more detailed. Imagine you have a bumpy ball made out of triangles. With the help of a tessellation shader, you can make that ball look like it's covered in tiny bumps, just like a real ball!

So, to put it simply, a tessellation shader is like a magical pencil that can draw more triangles to make a surface look smoother or more detailed.