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Autodesk Revit is a building information modelling software for architects, landscape architects, structural engineers, mechanical, electrical, and plumbing MEP engineers, designers and contractors. The original software was developed by Charles River Software, founded in , renamed Revit Technology Corporation in , and acquired by Autodesk in The software allows users to design a building and structure and its components in 3D , annotate the model with 2D drafting elements, and access building information from the building model's database.
The company was renamed Revit Technology Corporation in January From the outset, Revit was intended to allow architects and other building professionals to design and document a building by creating a parametric three-dimensional model that included both the geometry and non-geometric design and construction information, which is also known as building information modeling or BIM Eastman C.
At the time, several other software packages—such as ArchiCAD and Reflex—provided a three-dimensional virtual building model, and let the user control individual components via parameters parametric components.
Two key differences in Revit were that users created parametric components in a graphical "family editor" rather than a programming language, and the model captured all relationships between components, views, and annotations so that a change to any element automatically propagated to keep the model consistent.
The concept of bi-directional associativity [5] between components, views, and annotations was a distinguishing feature of Revit for many releases. The ease of making changes inspired the name Revit, a contraction of Revise-Instantly.
At the heart of Revit is a parametric change propagation engine that relied on a new technology, context-driven parametrics, that was more scalable than the variational and history-driven parametrics used in mechanical CAD software. Revit version 1. The software progressed rapidly, with version 2. The software was initially offered only as a monthly rental, with no option to purchase.
Licensing was controlled by an entirely automatic process, an innovation at a time when human intervention and manual transmission of authorization codes was required to buy other types of design software. Autodesk released several versions of Revit after After the release Revit Building was renamed Revit Architecture. In Dynamo [11] was released in beta form allowing first glimpses of directly programming the behavior of hosted components through a drag and drop node interface.
This is similar to the way the visual programming language Grasshopper 3d works on objects in Rhinoceros 3D. In [13] Revit LT [14] became the newest version of Revit on the market. It was a feature limited or Lite version of Revit which excluded features such as rendering and multi-user environments. Since Revit the different disciplines have been rolled into one product, simply called Revit.
With the release of Revit , Autodesk dropped support for bit Windows. The Revit work environment allows users to manipulate whole buildings or assemblies in the project environment or individual 3D shapes in the family editor environment. Modeling tools can be used with pre-made solid objects or imported geometric models.
However, Revit is not a NURBS modeller and also lacks the ability to manipulate an object's individual polygons except on some specific object types such as roofs, slabs, and terrain or in the massing environment. Revit includes categories of objects 'families' in Revit terminology. These fall into three groups:.
An experienced user can create realistic and accurate families ranging from furniture [17] to lighting fixtures, [18] as well as import existing models from other programs. Revit families can be created as parametric models with dimensions and properties.
This lets users modify a given component by changing predefined parameters such as height , width or number in the case of an array. In this way a family defines a geometry that is controlled by parameters, each combination of parameters can be saved as a type , and each occurrence instance in Revit of a type can also contain further variations. For example, a swing door may be a Family. It may have types that describe different sizes, and the actual building model has instances of those types placed in walls where instance-based parameters could specify the door hardware uniquely for each occurrence of the door.
Although Revit software comes with a range of families out of the box OOTB , they are limited, so users may find a need to build their own families or buy them from online stores such as Plansort, Bimbandit or Andekan.
Many experienced BIM users also make and later sell their own families on these websites. Because of copyright issues in project work, fully 3D-modeled Revit project models are rarely for sale. Indeed, as most projects are site-specific and bespoke, the demand for existing models is light anyway. However, new practices or students of Revit may want to refer to completed models. Since version 3. The workflow is similar to the use of a version control system in software engineering, that allows multiple developers to reliably collaborate on a common code base.
Each Revit user works on a local copy of the design, periodically checking in the work into the central repository. New user starts with creating a local copy of this repository. When a user starts modifying some building elements, these elements get automatically locked, preventing others from modifying them.
The locks are maintained in the central repository. The elements stay locked until the "borrower" checks in her work and releases the locks. Patented technology called "worksharing" allows Revit to minimize the set of elements being locked while allowing change propagation engine to update as many elements as needed, including the elements that are not locked. Revit typically avoids merge conflicts during check-in. In early Revit versions the central repository has been a folder on LAN.
This option is still available and appropriate for co-located design team. Since Autodesk also offers hosted cloud-based central repositories for Revit as a service. When a user creates a building, model, or any other kind of object in Revit, they may use Revit's rendering engine to make a more realistic image of what is otherwise a very diagrammatic model.
The user accomplishes this either by using the premade model, wall, floor, etc. Revit comes with a plethora of predefined materials, each of which can be modified to the user's desires. The user can also begin with a "Generic" material. With this, the user can set the rotation, size, brightness, and intensity of textures, gloss maps also known as shinemaps , transparency maps, reflection maps , oblique reflection maps, hole maps, and bump maps , as well as leaving the map part out and just using the sliders for any one or all or none of the aforementioned features of textures.
Cloud-based rendering with the experimental plug-in dubbed Project Neon, located on Autodesk Labs is in the beta phases and allows for the user to render their images through their Autodesk account instead of locally through their own computers. Revit models may also be linked directly into Autodesk 3ds Max release and later for more advanced rendering and animation projects with much of their material and object information maintained.
From Wikipedia, the free encyclopedia. Building information modelling software. The New York Times. AutoCAD and Revit.. ISBN Archived from the original on March 2, Retrieved December 15, Archived from the original on February 18, Archived from the original on July 13, Revit Architecture, the industry standard from Autodesk, is..
Retrieved September 2, Inside the Factory - Designing the Revit Experience. Retrieved June 16, Grasshopper - generative modeling for Rhino. Autodesk, Inc. Archived from the original on October 10, Retrieved December 16, Archived from the original on September 7, Retrieved September 6, Autodesk Inc.
Archived from the original on September 27, Retrieved December 3, Autodesk Seek. Archived from the original on December 12, Wikibooks has a book on the topic of: Revit User's Manual. Wikimedia Commons has media related to Revit software. Building information modeling BIM. CAD software. History of CAD software. Autodesk products. Autodesk Inventor Navisworks. Namespaces Article Talk. Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file. Download as PDF Printable version.
Wikimedia Commons. CAD building information modeling.
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