AUTO DESK REVIT ARCHITECTURE

Auto desk Revit Architecture

Auto desk Revit Architecture is a robust architectural design and documentation software application created by Auto desk for architects and building professionals. The tools and features that make up Revit Architecture are specifically designed to support building information modelling (BIM) workflows.

Revit originally created for Charles River Software was founded in Newton, Massachusetts, on October 31, 1997, by Leonid Raiz and Irwin Jungreis, key developers of PTC's Pro/Engineer software for mechanical design, with the intent of bringing the power of parametric modelling to the building industry

Difference   between Revit and AutoCAD

Revit vs. AutoCAD. ... The main difference is that AutoCAD is primarily a drafting tool to create basic geometry that represents real life, while Revit is used to create geometry that is equipped with real-life information, hence the term building information modelling, or BIM.

Autodesk Revit is Building Information Modelling (BIM) software for Microsoft Windows, which allows the user to design with parametric modelling and drafting elements. Building Information Modelling (BIM) is a new Computer Aided Design (CAD) paradigm that allows for intelligent, 3D and parametric object-based design.

Modelling

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). Modelling 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.

There are many categories of objects ('families' in Revit terminology), which divide into three groups:

·         System Families, such as walls, floors, roofs and ceilings which are built inside a project

·         Loadable Families / Components, which are built with primitives (extrusions, sweeps, etc.) separately from the project and loaded into a project for use

·         In-Place Families, which are built in-situ within a project with the same toolset as loadable components 

An experienced user can create realistic and accurate families ranging from furniture to lighting fixtures  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 which 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 describing different sizes, and the actual building model will have instances of those types placed in walls where instance-based parameters could specify the door hardware uniquely for each occurrence of the door.

Due to the copyright nature of project work, it is rare and impractical to be able to buy fully 3D modeled Revit project models. Indeed, as most projects are site specific and bespoke, obtaining an existing model is in many instances unsuitable. However, there are circumstances where new practices or students that are training to learn Revit, do have a need to refer to completed models. Sources for these are limited, however they can be purchased at websites like BIMGallery and downloaded from websites like GrabCad. Revit model files have also been located using google search string "index of" + rvt" + "central" -html -htm -php

Although Revit software comes with a range of families out of the box (OOTB), they are limited, so users can find a need to build their own families or buy them from online stores such as Plansort, Bimbandit or Andekan. A number of websites offer families for free including Revit City, AUGI, BIM Object, BIMsmith and National Bim Library.

In 2011 Dynamo was released in beta form allowing first glimpses of directly programming the behaviour 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.

Rendering

When a user makes 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. This is accomplished by either using the premade model, wall, floor, etc., tools, or making her or his own models, walls, materials, etc. Revit 2010 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 2013 and later) for more advanced rendering and animation projects with much of their material and object information maintained. need to modify.