Task 4 - Mesh Construction

How are 3D Models made?

3D artists have lots of different types of modelling technologies available for them to use. There are six common ways to model data that can be generated onto a 3D model into a computer, each of these methods offer advantages and disadvantages to the 3D artists so its up to their own personal preferences for which one they choose. 

Source: http://home.lagoa.com/2014/03/what-are-3d-models-made-out-of/

3D models are made up of polygons.

Created by connecting points, vertices, together via edges to define triangular faces with these you can create the 3D model you desire. It may take a few or alot but with polygons you will create you 3D model. You can make your 3D model through Mesh modelling this is available in almost every non CAD and some CAD software's.

Source for facts: http://home.lagoa.com/2014/03/what-are-3d-models-made-out-of/

Primitive Modelling

Primitive modelling is a very popular technique of modelling it is where you model from an enviroment using shapes like the following:

Cubes

Pyramids

Cylinders

Spheres

2D primitives, such as squares, triangles, and disks

source: http://southerngfx.co.uk/wp-content/uploads/2010/11/primitives.png

Box Modelling

This is the most popular and the most easy to use tools for modelling used today by 3D artists mainly because its simple and is the most editable tool around, you can pretty much create anything you want with just this one tool.

This tool works well together with two other tools called the subdivide tool which splits faces and edges into smaller pieces by adding new vertices and the extrusion tool which applied to a face does what the name entails  and the face is pushed and pulled across a section of which you desire. 

source: https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/BoxModelingIntro_Form.jpg/511px-BoxModelingIntro_Form.jpg

The video below shows a tutorial which you yourself can follow or just watch on how box modelling is done to create a head.

Extrusion Modelling

The second most common modelling technique for 3D artists is extrusion modelling also known as inflation modeling or extrusion modelling. This is where the user creates a 2D shape nice and simple and then uses a second image from another angle and the user extrudes the 2D shape into 3D following the outline the second images gives you. this method is extremely useful for creating heavily detailed objects and creating you own drawings into 3D models. 

source: http://www.huxter.org/words/wp-content/uploads/2013/08/atjp-01-rough-shape-01.jpg

Sketch Modelling

Sketch modelling is great for a short time project and a long time project because of the great use of sketch modelling. You can easily create low or high detail projects quickly which is great for 3D artists to test ideas.

3D Scanners

3D scanners are amazing machines that scan already created objects which can be highly detailed and then scanned and turned into a highly accurate digital representation.


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