3D modeling,animation,rendering tool.Some of its features: Lots of primitives,splines,modifiers,cameras,lights,bones,bone structures,uv mapping tools,skin,import/export,raytracing and of cource an SDK to create your own plugins very easily.
SgCore is a new powerful engine for 3D programmers to effectively create and manipulate the most elaborate 3D and 2D objects. It combines excellent 3D modeling functionality with a user-friendly interface and professional 24-hour customer support.