How does three realize the lighting effect per Vertex of the model? do you have any relevant cases? thank you.
You may find https://thebookofshaders.com/ helpful as an introduction to GPU rendering and shaders. All realtime 3D engines use graphics cards and shaders for rendering.
In fact, I want to realize the shadow effect of a solid-color model through the shadow material material; for example, like the effect of this link, this is the native webgl I want to change to three, but it’s a failure.