This is the full IntelliJ/Eclipse Koin3D project, for anybody who wants to use Koin3D, or simply run the different use case examples. There is three viewers available, one using SWT for embedding in an Eclipse application, the other using GLFW for standalone fullscreen use (for gaming), and a third, Swing/AWT Viewer. Koin3D requires at least Java 8, and is compatible with latest java versions. It has been tested on Windows and Linux, and on Raspberry PI 4 on linux. About 700 classes are implemented, the goal being to be as close to Coin3D 4 as possible. The memory usage has been highly optimized (Directly from user input buffer to VBO). This version can use MemoryUtil.memAlloc() in order to avoid stuttering due to garbage collecting of DirectByteBuffer.