For this assignment I watched a YouTube video about basic 3D Computer Graphics. After watching it I realized how little I had originally known about 3D Graphics. The use of 3D Geometry to create the 3D Objects we see is immense. This is used in video games, animated movies and many other things. Below I took screenshots to help viewers of this post get an idea of what I am referring to. The link to the youtube video is: https://www.youtube.com/watch?v=pfV-4CKj3PQ&feature=youtu.be
First we learned about polygons and vertices. The vertices are essentially lines that can either be by themselves or linked together to make shapes in any 3D space.They are connected to each other by the vertex. If they are linked together they make shapes otherwise known as polygons. Polygons are extremely essential in 3D Modeling.
3D game models are ALL made of little triangles which are the most basic form of polygons. If you look at the basic structure of a 3D model before it is texture mapped it is clearly made of all polygons. This is known as the polygon mesh. You can use 3D Modeling software to make a 3D Model out of the polygons. Some softwares also use a quad polygon for planes.
Lighting is very important to make the object look realistic. 3D Shading adds a light to the scene and adds lighting to the model as if it was in real life. The lighting is essential to helping the movements and actions look realistic. There are perpendicular vectors sticking out of each polygon. These vectors are called normals and determine where the lighting is hitting. Normals are usually managed by the software one is using. When a part of the object is facing away from the light then it will become darker.
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