Blender 2.72

It is a free and open source 3D animation suite and supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.

Advanced users employ Blender’s API for Python scripting to customize the application and write specialized tools; often these are included in Blender’s future releases.

Blender is well suited to individuals and small studios who benefit from its unified pipeline and responsive development process.

Photorealistic Rendering

Blender now features a powerful new unbiased rendering engine called Cycles that offers stunning ultra-realistic rendering.
The built-in Cycles rendering engine offers:

• GPU & CPU rendering
• Realtime viewport preview
• HDR lighting support

Fast UV Unwrapping

Easily unwrap your mesh right inside Blender, and use image textures or paint your own directly onto the model.
Blender allows for:

• Fast Cube, Cylinder, Sphere and Camera projections
• Conformal and Angle Based unwrapping (with edge seams and vertex pinning)
• Painting directly onto the mesh
• Multiple UV layers
• UV layout image exporting

Video Editing

Blender even comes with a built-in Video Editor.
The Video Editor allows you to perform basic actions like video cuts and splicing, as well as more complex tasks like video masking.
The Video Editor includes:

• Live preview, luma waveform, chroma vectorscope and histogram displays
• Audio mixing, syncing, scrubbing and waveform visualization
• Up to 32 slots for adding video, images, audio, scenes, masks and effects
• Speed control, adjustment layers, transitions, keyframes, filters and more.

Flexible Interface

Novice and advanced users will love the ability to customize their layout completely. From simply splitting their viewport, to fully customizing it with python scripting, blender works for you.
Blender’s interface also offers:

• Consistency across all platforms
• No disruptive pop-up windows
• Crisp text (support for retina on OSX)

Download link :http://www.blender.org/download/
Platforms : Linux, Windows, Macintosh
File Size :  57MB (Windows 64 bit)