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Blender is a professional free and open-source 3D computer graphics software product used for creating animated films, visual effects, art, 3D printed models, interactive 3D applications and video games. Blender’s features include 3D modeling, UV unwrapping, texturing, raster graphics editing, rigging and skinning, fluid and smoke simulation, particle simulation, soft body simulation, sculpting, animating, match moving, camera tracking, rendering, video editing and compositing. It further features an integrated game engine.
The Dutch animation studio Neo Geo developed Blender as an in-house application in January 1995,[5] with the primary author being software developer Ton Roosendaal. The name Blender was inspired by a song by Yello, from the album Baby.[6] When Neo Geo was acquired by another company, Ton Roosendaal and Frank van Beek founded Not a Number Technologies (NaN) in June 1998 to further develop Blender, initially distributing it as shareware until NaN went bankrupt in 2002.
On July 18, 2002, Roosendaal started the “Free Blender” campaign, a crowdfunding precursor.[7][8] The campaign aimed for open-sourcing Blender for a one-time payment of €100,000 (US$100,670 at the time) collected from the community.[9] On September 7, 2002, it was announced that they had collected enough funds and would release the Blender source code. Today, Blender is free, open-source software that is—apart from the Blender Institute’s two full-time and two part-time employees—developed by the community.[10]
The Blender Foundation initially reserved the right to use dual licensing, so that, in addition to GPLv2, Blender would have been available also under the Blender License that did not require disclosing source code but required payments to the Blender Foundation. However, they never exercised this option and suspended it indefinitely in 2005.[11] Blender is solely available under “GNU GPLv2 or any later” and was not updated to the GPLv3, as “no evident benefits” were seen.[12]
Official releases of Blender for Microsoft Windows, MacOS and Linux,[25] as well as a port for FreeBSD,[26] are available in both 32-bit and 64-bit versions. Though it is often distributed without extensive example scenes found in some other programs,[27] the software contains features that are characteristic of high-end 3D software. Among its capabilities are:

Support for a variety of geometric primitives, including polygon meshes, fast subdivision surface modeling, Bezier curves, NURBS surfaces, metaballs, icospheres, multi-res digital sculpting (including dynamic topology, maps baking, remeshing, resymetrize, decimation), outline font, and a new n-gon modeling system called B-mesh.
Internal render engine with scanline rendering, indirect lighting, and ambient occlusion that can export in a wide variety of formats.
A pathtracer render engine called Cycles, which can take advantage of the GPU for rendering. Cycles supports the Open Shading Language since Blender 2.65.[28]
Integration with a number of external render engines through plugins.
Keyframed animation tools including inverse kinematics, armature (skeletal), hook, curve and lattice-based deformations, shape animations, non-linear animation, constraints, and vertex weighting.
Simulation tools for soft body dynamics including mesh collision detection, LBM fluid dynamics, smoke simulation, Bullet rigid body dynamics, ocean generator with waves.
A particle system that includes support for particle-based hair.
Modifiers to apply non-destructive effects.
Python scripting for tool creation and prototyping, game logic, importing/exporting from other formats, task automation and custom tools.
Basic non-linear video/audio editing.
The Blender Game Engine, a sub-project, offers interactivity features such as collision detection, dynamics engine, and programmable logic. It also allows the creation of stand-alone, real-time applications ranging from architectural visualization to video games.
A fully integrated node-based compositor within the rendering pipeline accelerated with OpenCL.
Procedural and node-based textures, as well as texture painting, projective painting, vertex painting, weight painting and dynamic painting.
Real-time control during physics simulation and rendering.
Camera and object tracking.

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