Blender
Blender is a free and open-source 3D computer graphics software used for creating animated films, visual effects, art, 3D printed models, motion graphics, interactive 3D applications, and virtual reality. It supports the entire 3D pipeline, including modeling, rigging, animation, simulation, rendering, compositing, and motion tracking, and includes a built-in game engine and video editing capabilities.
Developers should learn Blender when working on projects involving 3D graphics, such as game development, animation, architectural visualization, or virtual reality, as it provides a comprehensive, cost-effective toolset for creating and manipulating 3D assets. It is particularly useful for indie developers or small teams due to its open-source nature and active community, enabling rapid prototyping and integration with other tools through Python scripting.