HA7 Task 4

Mesh Construction:

Polygonal Modelling:

1. In 3D computer graphics, polygonal modeling is an approach for modeling objects by representing or approximating their surfaces using polygons. Polygonal modeling is well suited to scanline rendering and is therefore the method of choice for real-time computer graphics. https://en.wikipedia.org/wiki/Polygonal_modeling
2. 
   https://seraphinacorazza.wordpress.com/2012/12/28/modeling-techniques-differences-between-nurbs-and-polygon-modelling-new-york-city-rooftop-3d-architecture-project-research/

Primitive Modelling:

http://www.3dtotal.com/pages/tutorials/maya/tut/mazertut1_main.htm

Primitive modelling is when you take the most basic shapes that the software has such as cubes, spheres, cylinders, etc..and with just these shapes you put them together to create a full 3D model using only these and maybe a few tools such as bevel to get the shape right.

Box Modelling:

A 3D modeling technique in which the artist begins with a low-resolution primitive (typically a cube or sphere) and modifies the shape by extruding, scaling, or rotating faces and edges. Detail is added to a 3D primitive either by manually adding edge loops, or by subdividing the entire surface uniformly to increase polygonal resolution by an order of magnitude.

http://3d.about.com/od/Glossary-B/g/Box-Modeling.htm

Extrusion Modelling:

http://xsisupport.com/2012/10/23/ice-modeling-setting-extrusion-length-and-inset-based-on-polygon-area/

Extrusion modelling is when you take a flat 2D shape that you created or many have already created previously and use the extrusion tool to make it 3D. This is useful because it is easier to create a 2D shape than it is a 3D one and also allows you to create like a jigsaw puzzle and then just slot the pieces into place after extruding them.

Sketch Modelling:

Sketch-based modeling is a method of creating 3D models for use in 3D computer graphics applications. Sketch-based modeling is differentiated from other types of 3D modeling by its interface - instead of creating a 3D model by directly editing polygons, the user draws a 2D shape which is converted to 3D automatically by the application.Sketch-based modeling is primarily designed for use by persons with artistic ability, but no experience with 3D modeling programs. However, sketch-based modeling is also used for other applications. One popular application is rapid modeling of low-detail objects for use in prototyping and design work.

https://en.wikipedia.org/wiki/Sketch-based_modeling

3D Scanners:

3D scanners have become widely popular as this makes 3D modelling very easy. All you have to do is scan the objects and the software/technology will automatically create the 3D object for you.