Autodesk 123D

The 123D suite consists of the programs:

• Catch: Creates 3D models from series of photographs taken at various angles using photogrammetry
• Sculpt+: Allows manipulation of virtual clay into a model
• Make: Allows creation of low-tech LOM-style solid models
• Design: Simplified program to create 3D models
• Creature: Allows creation of creatures in 3D on iPad
• Circuits: Virtual breadboarding and circuit design application[http://blog.123dapp.com/2013/09/introducing-123d-circuits] {{Webarchive|url=https://web.archive.org/web/20130912092914/http://blog.123dapp.com/2013/09/introducing-123d-circuits |date=September 12, 2013 }} 123D circuits announcement.
• Tinkercad: 3D printing app
• MeshMixer: A tool for working with mesh models

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Catch uses photogrammetry technology to create a 3D model out of multiple pictures taken by the user. It does this by stitching together the images with common visual structures automatically, then asking the user to help connect points that could not be determined through software. Catch can be used to create 3D models of people, places, and things. With the creation of an Autodesk account, users can also export their newly created models to further manipulate in popular 3D modeling software.

The program is available for Windows, an app exists in the play store for Android, app store for iOS, and Windows Phone store.

To create a 3D model in Catch the user should find a subject that can be easily photographed from many angles in good light. If the user is trying to create a 3D model of something with complex features they can take close up pictures on those areas to give better definition to the resulting model. Autodesk recommends taking between 30 and 40 pictures to create a well rounded model but when photographing larger subjects the user can take up to 70 pictures to give greater detail to the model. Once all of the images are saved they are uploaded to autodesk servers so they can be stitched together and a 3D model can be made. This process can take several minutes. Finally after they model is created it is downloaded to the user's device for viewing and editing. The 3D models created by Catch can be used in a number of ways such as 3D printing.

Catch offers users the ability to view, comment on, rate, and download other users models. Likewise any user of the app has the option to share their creations with the autodesk community via Autodesk's built-in sharing functionality.

File:Video of a 3d model of Horatio Nelson bust in Monmouth Museum, Wales, produced using photogrammetry.ogv bust in Monmouth Museum, produced using 123D Catch.]]

Models featuring small parts or hair and fur can cause problems for the Catch software because the mesh created does not allow for such level of detail.{{Citation needed|date=October 2020}} When creating a model, the Catch software can have trouble stitching together images that feature reflective or transparent surfaces, even with the user's assistance. Catch can also fail to properly create a model if the subject moves or changes when the photographs are taken. {{Citation needed|date=October 2020}}

Catch processed the user's images on an Autodesk server, therefore internet connection was required. Autodesk servers may be unresponsive at times.{{Citation needed|date=October 2020}}

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• Comparison of EDA software
• Blender - a comprehensive free and open-source 3D package
• MeshLab - a free and open-source tool similar to MeshMixer, extensively used by the scientific community
• Autodesk Meshmixer, software for manipulating and cleaning up 3D meshes.

{{Reflist}}

• [http://www.computer.org/csdl/mags/cg/2013/06/mcg2013060026-abs.html Ryan Schmidt, Matt Ratto. Design to Fabricate, Maker Hardware Requires Maker Software.IEEE Computer Graphics and Applications.]

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