WideStudio is an Integrated Development Environment (IDE) for building window applications in C++, Ruby, Python an Perl for Windows, MacOSX, Linux, FreeBSD, SOLARIS and other unix and BTRON and T-Engine. This is open and free (under MIT/X Consortiun Lice
Here we have fun developing software related to embedded extension languages and small languages in many application domains, using existing languages and/or creating new ones.
OPath is a physically based rendering system. The renderer takes a scene description written in a simple language describing geometry, materials, lighting and viewing parameters and produces photorealistic, high dynamic range images of the scene.