In this lesson, we learned the method of topology through the quad draw tool of maya, but I can’t fully understand why this topology or the principle of topology, so I try to find answers on related websites, the following is my exploration process.
The final:
Why we need to retopology
“This is because complex meshes are difficult to animate. It is necessary to limit the polygon count of any 3D model when it’s used for animation.
By overlaying a low-polygon mesh onto a high-polygon mesh you can get something that’s perfect for animating and easy on your processor.”
Reference:
What is Retopology? (A Complete Intro Guide For Beginners) (conceptartempire.com)