The more important is the normal vectors directions are calculated correctly. Sometimes a big problem with 3D models is that it's hard to know when you are inside or outside a complex object.
Above you can see a 3D object drew with its normals.
"Picture to People" (P2P) is a huge Computer Graphics project. It was started to create new softwares able to make 2D drawing, 3D rendering, vexel drawing, text effects, photo effects, image filtering and other complex Computer Graphics operations. It has been made from scratch, including its low level Computer Graphics libraries like Maccala. Nowadays, most final features produced for this project are released as free online tools available from its official website. This blog talks about Computer Graphics, mainly concerning Picture to People development.
The more important is the normal vectors directions are calculated correctly. Sometimes a big problem with 3D models is that it's hard to know when you are inside or outside a complex object.
Above you can see a 3D object drew with its normals.
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