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link to download the add-on if you don't have a more update Blender version:
https://github.com/Antonioya/blender/...
Hello and welcome to this tutorial extra from the series of tutorials to create a lowpoly character in Blender.
This video, along another one, are a complement of the sixth section, therefore they are not obligatory to build the character, but they will help us to feed a little our Computer Graphics knowledge.
Since in this video, we are going to understand about the "Normals", but without dipping in formulas or vectorial calculus, since the main goal of this video is awake a little your interest about this topic, since I don't want to make heavy this topic for the beginner.
why understand them?
Because they play a fundamental part in the geometry build process, since the final result of each polygon depend and its interaction with the virtual environment. Since the normals define the "front" and "back" concept in a surface, allowing this one can interact with the light and other objects, emulating the collisions.
In this first video, we are going to check how the surface normal is built, and how it works. For that, I will explain:
How the polygons are generated, in the 3D applications.
Also, I will give a slight explanation about the "Cross Product", And how that operation works together with the process that involve the polygon creation, for then generate and determine the normal direction.
*Also, we will use add-ons and options in the program, that will help us to understand and prove the theory.
*If this topic still hard for you, you can take a look at these links, which serve as compensation, I warn you, they do not go much further into the subject, because they are brief explanations, if you want to delve more I recommend you get your own OpenGL books:
----------------------------Small English Documentation--------------------------
Create Custom Mesh in Python de Antonio Vazquez:
http://community.cgcookie.com/t/creat...
Blender: first steps with Python Saraja Olivier:
https://www.cs.indiana.edu/classes/a2...
Khronos.org Face Culling:
https://www.khronos.org/opengl/wiki/F...
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These are introduction that allow you having a notion of what they want to find will be easier to search :)
Any questions, ask, greetings and thank you very much for reading