In computer graphics, 3D objects are stored in files that are meant to be loaded and displayed on the screen. Although multiple file formats exist for 3D models, OBJ is one of the most commonly used. These files are plain text ending in .obj that contain the following: A list of vertices that specifies the x, y,z coordinates of each point in 3D space A list of faces, each of which specifies the index number of three points that form a triangle Each vertex is listed on one line, and begins with the letter v. The x, y, and z coordinates are included next, separated by spaces. After all the vertices are done, each face is then listed on one line beginning with the letter f. The three index numbers are included next, starting with 1, also separated by spaces. For example, this OBJ file contains a single triangle.

we can all learn from our past mistakes because we all have different ways of learning different types of techniques. my way may or may not another classmate remember and have the repetition to acknowledge such standard. such as remembering acronyms. using abbreviations to us remember keep things in order in our memory. this us figure out what comes next in the sequence. if so, what we have is a sentence of just letters all in caps. we either know the meaning or have no idea what it stands for. most of the time we know the meaning and context. but most of us who don't know, should learn by having a quick glance at what needs to be remembered. such as repetition in the memory for acronyms. one way that me, is the fact that i'm always doing math and english assignments. so we have to remember specific meanings such as soapstone for documents, such as citing correctly. or pemdas for doing the equations correctly, even if it's the super long way. this works for everyone. you just have to find what works for you by practicing and repetition daily.