Someday…
There will also be Grenaille plugins for Gratin…
Gratin is a programmable node-based system tailored to the creation, manipulation and animation of 2D/3D data in real-time time on GPUs. It is free, open source and relies on OpenGL and GLSL to ensure wide OS and GPU compatibility. It offers three levels of programmability (group, generic and plugin nodes) which make it adapted to the needs of experts and non-experts alike.
Slowly gathering knowledge further… considering quest and inspirations for node and procedural system was mentioned at bcon.
Also linking, not to forget…