graphics (3-D) |**[lightmapper](https://github.com/ands/lightmapper#lightmapper)** | **public domain** |C/C++|**1**| use your OpenGL renderer to offline bake lightmaps
images | [jo_gif.cpp](http://www.jonolick.com/home/gif-writer) | **public domain** | C++ |**1**| animated GIF writer (CPP file can also be used as H file)
images |**[gif.h](https://github.com/ginsweater/gif-h)** | **public domain** | C |**1**| animated GIF writer (can only include once)