Intro to 3D Modelling

What is 3D Modelling?

3D modelling is the process of creating a mathematical representation of a 3D object in a digital space with polygons mapped to coordinates using specialised software such as Blender.

What is it used for?

3D models can be used for CGI (Computer Generated Imagery), such as animations, video games, vfx, architecture, engineering, cars, healthcare and film.

What is it used for in games?

3D models can be props, environments, characters, vehicles, weapons, items and UI elements in games. 

What software do people use for 3D modelling?

Maya,

Blender,

3DS Max,

Metasequoia,

MagicaVoxel

and ZBrush.

Basic Pipeline for 3D Modelling

• Pre-Production: The model concept is drawn at multiple angles, with annotations on what textures or special effects are used (such as fur)

• 3D Modelling: The model is then modelled in a 3D Modelling software using the drawings as reference.

• UV Mapping: Extracting the ‘net’ of the 3D model so textures can be applied to it.

• Texturing and Shaders: Adding textures to give 3D models detail

• Rigging: Adding bones to the model to make animation possible

• Animation: Giving the model movements and animations to use in other software

• Lighting: Giving the model lighting to make the render look nice

• Rendering: Producing the final image of the model

What do we mean by the term Low-Poly?

A model with a low amount of polygons.

What do we mean by the term High-Poly?

A model with a high amount of polygons.

What constraints do 3D modellers face?

If a 3D model is for a game, the amount of polygons in a model would be lower to make the game run smoother, whereas in film, the model can be millions of polys as there is no running constraints.