Google SketchUp

SketchUp is a 3D modelling program designed for professional architects, civil engineers, filmmakers, game developers, and related professions. It was designed to be more intuitive, flexible, and easy-to-use than other 3D modelling programs, which often have steep learning curves.[1] Several features allow designers to "play" with their designs, unlike what is possible in other 3D CAD programs. It is marketed as an easy-to-use conceptual tool with a simple interface.

http://www.sketchup.com/

Some of its key features include:

• A smart drawing cursor (inference) system that allows users to draw 3D objects using a 2D screen and mouse.
• Simple massing study capability via "push-pull".
  
• An interactive Heliodon, or sun angle simulator.
• A fast, easy way to animate camera and sun movements.
• Models can be individually colored with an assortment of solid colors, textures and materials.

SketchUp was developed by startup company @Last Software, Boulder, Colorado which was formed in 1999.[2] SketchUp was first released in August 2000[3] as a general purpose 3D content creation tool. It won a Community Choice Award at its first tradeshow in 2000.(A/E/C SYSTEMS Fall 2000)[4] It quickly found a market in architecture and building design industries, however, and was revised to suit the needs of working professionals. The key to its early success was in its fast learning curve, allowing for a shorter learning period than other commercially available 3D tools.

As of SketchUp 5, features were added to allow the user to extrude and widen as well as the ability for a face to "follow" the cursor around an object.

On March 14, 2006, Google acquired @Last Software,[5] attracted by their plugin for Google Earth.

On January 9, 2007 SketchUp 6 was released, featuring a handful of new tools as well as a beta version of Google SketchUp LayOut. LayOut includes a handful of 2D vector tools, as well as page layout tools making it easier for professionals to create presentations without jumping to a third-party presentation program.