DroidGraph is a project mainly written in Java, it's free.
Open GL ES Scene graph library for Android
This project is intended to be a light weight, flexible, 3D OpenGL ES scene graph for use, initially, with the Android platform.
Current features include:
parents and groups 2D and 3D shape nodes translation, rotation, scale, shear fxshape and fxgroup for managing more dynamic groups lights materials
Immediate project goals include: