Archives for posts with tag: file format

Universal Scene Description (USD) is an efficient, scalable system for authoring, reading, and streaming time-sampled scene description for interchange between graphics applications.

USD provides for interchange of elemental assets (e.g. models) or animations. But unlike other interchange packages, USD also enables assembly and organization of any number of assets into virtual sets, scenes, and shots, transmit them from application to application, and non-destructively edit them (as overrides), with a single, consistent API, in a single scenegraph. USD provides a rich toolset for reading, writing, editing, and rapidly previewing 3D geometry and shading. In addition, because USD’s core scenegraph and “composition engine” are agnostic of 3D, USD can be extended in a maintainable way to encode and compose data in other domains.

Home Page: http://graphics.pixar.com/usd/
Project Page: http://graphics.pixar.com/usd/
Language: Python, C++
Platform: Linux, Windows, OSX
License: Modified Apache License
Sponsor: Pixar

Alembic is an open computer graphics interchange framework. Alembic distills complex, animated scenes into a non-procedural, application-independent set of baked geometric results. This ‘distillation’ of scenes into baked geometry is exactly analogous to the distillation of lighting and rendering scenes into rendered image data.

Alembic is focused on efficiently storing the computed results of complex procedural geometric constructions. It is very specifically NOT concerned with storing the complex dependency graph of procedural tools used to create the computed results. For example, Alembic will efficiently store the animated vertex positions and animated transforms that result from an arbitrarily complex animation and simulation process which could involve enveloping, corrective shapes, volume-preserving simulations, cloth and flesh simulations, and so on. Alembic will not attempt to store a representation of the network of computations (rigs, basically) which are required to produce the final, animated vertex positions and animated transforms.

The production ready version of Alembic 1.0 was announced at Siggraph 2011 and released on August 9th, 2011 by Lucasfilm and Sony Pictures Imageworks with support from major vendors including Autodesk, Side Effects Software, The Foundry, Luxology, Pixar’s Renderman and NVidia.

Home Page: http://alembic.io/
Project Page: http://code.google.com/p/alembic/
Language: C++, Python
Platform: Linux, OSX, Windows
License: New BSD License
Sponsor: Sony Pictures Imageworks, Lucasfilm

Ptex is a texture mapping system developed by Walt Disney Animation Studios for production-quality rendering:

  • No UV assignment is required! Ptex applies a separate texture to each face of a subdivision or polygon mesh.
  • The Ptex file format can efficiently store hundreds of thousands of texture images in a single file.
  • The Ptex API provides cached file I/O and high-quality filtering – everything that is needed to easily add Ptex support to a production-quality renderer or texture authoring application.

Home Page: http://ptex.us/
Project Page: http://github.com/wdas/ptex/
Language: C++
Platform: Linux, OS X, Windows
License: New BSD
Sponsor: Walt Disney Animation Studios

Blender is an integrated application that enables the creation of a broad range of 2D and 3D content.  Blender provides a broad spectrum of modeling, texturing, lighting, animation and video post-processing functionality in one package.  Through its open architecture, Blender provides cross-platform interoperability, extensibility, a small footprint, and a tightly integrated workflow.

Aimed world-wide at media professionals and artists, Blender can be used to create 3D visualizations, stills as well as broadcast and cinema quality videos, while the incorporation of a real-time 3D engine allows for the creation of 3D interactive content for stand-alone playback.

Originally developed by the company ‘Not a Number’ (NaN), Blender now is continued as ‘Free Software’, with the source code available under the GNU GPL license. It now continues development by the Blender Foundation in the Netherlands.

(more…)

Home Page: http://www.blender.org/
Project Page: http://www.blender.org/development/
Language: C, Python
Platform: Windows, Mac OS X, Linux, FreeBSD 5.4 (i386), Sun Solaris 2.8 (sparc)
License: GNU GPL

GIMP is a versatile and full-featured image processing and paint package.  Through it’s scripting interface it can also provide online batch processing systems, a mass production image renderer or function as an image format converter.

GIMP is expandable and extensible. It is designed to be augmented with plug-ins and extensions.

(more…)

Home Page: http://www.gimp.org/
Project Page: http://developer.gimp.org/
Language: C
Platform: Windows, Linux, OSX
License: GPL