Intro to 3d modeling - part 1

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Intro:

There is a quote that says, "If you want to know that you have understood something very well, explain it to a child." if you know how to explain it to a small child. Your knowledge and the science you have learned is a legacy you have to hand it over before you die.

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What are 3d Models?

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It consists of vertex / vertices, edge / edges and face/faces.

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Let's explain the vertex first:

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Vertex (aka vert):

A point in the 3d space that has 3 dimension coordinates (x,y,z).

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Edge:

A-line between two vertices

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Face:

A face is the most basic part of a 3D polygon. When three or more edges are connected together (shown below), the face is what fills in the empty space between the edges and makes up what is visible on the polygon mesh.

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Thus any 3d model, a simple object like a cube, car, spaceship, a tree, or a human character each build using the same representation but in a more complex form, in another term these are the elementary components of any 3d object.

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A very important terminology needed to be introduced at this part which are:

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1. polygon: a polygon mesh is a collection of vertices, edges, and faces that defines the shape of a polyhedral object. (polyhedral: a shape of multiple surfaces)

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2. 3d mesh: a net of verts, edges, and faces. or a set of polygons.

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Intro to 3d modeling - part 1

Examples of 3d models from very low-poly to a high-poly one.

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Lowpoly dolphin mesh:

High Poly Car Mesh:

Different poly density bunny mesh:

Lowpoly human character mesh (little boy):

To be continued ...