Browse Definitions :
Definition

3D model

A 3D model is a mathematical representation of something three-dimensional.

3D models are used to portray real-world and conceptual visuals for art, entertainment, simulation and drafting and are integral to many different industries, including virtual reality, video games, 3D printing, marketing, TV and motion pictures, scientific and medical imaging and computer-aided design and manufacturing CAD/CAM.

Some 3D models are constructed from NURBS (non-uniform rational b-spline), smooth shapes defined by bezel curves, which are relatively computationally complex. The typical base of a the model is a 3D mesh; the structural build consists of polygons.

When models are created for animation, they require careful construction because the polygon layout can create issues in unusual deformations. The models also require the construction of a skeleton and the painting of weights, which define the texture and polygon deformation of the model under movement.

Some 3D models define surfaces through shaders, programs that mathematically define color, lightplay and other surface characteristics. Other models define color, specularity, surface texture, and light emission through a series of 2D image files called maps, especially those used in games where raster graphics are needed to deliver real-time frame rates.

A more recent development in 3D modeling is reality capture, which uses remote sensing technology such as Lidar to capture complex forms quickly and accurately. Reality capture may be used in combination with 3D printing for an end-to-end process known as reality computing.

This was last updated in September 2016

Continue Reading About 3D model

SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • What is cybersecurity?

    Cybersecurity is the protection of internet-connected systems such as hardware, software and data from cyberthreats.

  • DOS (disk operating system)

    A DOS, or disk operating system, is an operating system that runs from a disk drive. The term can also refer to a particular ...

  • private key

    A private key, also known as a secret key, is a variable in cryptography that is used with an algorithm to encrypt and decrypt ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • RAM (Random Access Memory)

    RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data ...

  • RAID 6

    RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID ...

  • NOR flash memory

    NOR flash memory is one of two types of non-volatile storage technologies.

Close