Thursday, 20 June 2013

Geometry Theory

Geometry Theory

3D objects are made up of 3 elements. The first are the polygons. Polygons in 3D modelling is similar to polygons in 2D. Polygons are 2D shapes which connect to the vercities in order to put together the 3D mesh. Vertices are the points which bring the polygons together. Vertices are the 2nd elemant which makes polygons. The third are the edges. The edges are the same as edges in anything else, they are the sides of the polygon. There are different software applications to create 3D models. Examples being 3DS Max, Google Sketchup, Maya and Blender.
The Blender test model, showing the edges around it which shows the elements that make the model.

3D modelling is used in many different subjects like Movies, Video Games, Science and in the Architect/Construction industry.
What connects them (triangles, lines, curved surfaces, etc)

Verticies have very much to do with coordination. It has 3 different co-ordinates. Co-ordinates X, Y and Z.
The Z co-ordinate indicates the object's movement up and down.
The X co-ordinate indicates the object's movement from side to side
The Y co-ordinate indicates the object's movement from going forward and backwards.

Screenshot of a sphere from 3DS Max showing the co-ordinates and their directions.

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