...Basic requirements behind this initiative was to have a integrated development environment with 3D graphics support, sounds, videos, physics, scripting, GUI (Graphic User Interface) and inputs and all that is relevant to be used in a multi-media development process.
Since cross-platform is a requirement as well, this led me in a search open-source APIs to integrate, because the idea is to be able to compile everything to at least Windows, Linux, Android, and Mac OSX operating systems.
After a few months of research, I came up with the following list of projects:
-Ogre3D
-Bullet Physics
-MYGUI
-OgreVideoPlugin
-OgreOggSound
-OpenAL
To stick with this idea, I recommend the use of some Tools, such as Eclipse, Code::Blocks and msys2/MinGW64 for the development environment.