Geometry processing is when we use computers to do math and make pictures of shapes! Think of playing with blocks or legos, but on a computer screen.
First, we can make a shape by putting points in a 3D space. These points are called vertices. Then we can connect the points with lines or curves called edges. This gives us a mesh.
Now, we can do lots of math on the mesh to make it look different. We can move the vertices around to change the shape. We can also color the mesh and add textures to make it look more like real life!
Sometimes we want to use the mesh for a game or animation. We need to make sure the mesh is easy to move quickly on the computer, so we might simplify some parts of it. We can also make sure all the edges connect nicely so the mesh doesn't look lumpy or broken.
Overall, geometry processing is like playing with virtual legos and math to make cool pictures on the computer!