Small 3D Scene Graph

Question

I'm looking for a 3D graphics library (not a complete game engine). Preferred a scene graph. Something small (unlike jME, XNA or Unity), that I can easily expand and change.

Preferred features:

• Cross Platform
• Wrriten in Java/Scala (JOGL or LWJGL), C# (preferred OpenTK), Python or JavaScript/WebGL.
• Support for OpenGL is a must. Direct3D is optional.
• Some material system
• Full support for some model format with full animation support (preferred COLLADA)
• Level of Detail (LOD) support
• Lighting support
• Shaders, GUI, Input and Terrain/Water support are also preferred, but not required

Thanks!

Answer 1

Panda3D.

• Cross platform ( All desktop OSes )
• Python API ( although the core is written in C++ )
• OpenGL support
• At least I'm sure you can import models from Blender (there's a Blender plugin for that)
• shaders, HUD, input, and whatnot
• and it's open source (meaning that you can expand it)

Answer 2

Xith3D

• Cross Platform - Yes (java)
• Wrriten in Java/Scala (JOGL or LWJGL), C# (preferred OpenTK), Python or JavaScript/WebGL. - Yes (java)
• Support for OpenGL is a must. Direct3D is optional. - Yes (java)
• Some material system- Yes (java)
• Full support for some model format with full animation support (preferred COLLADA)- Yes (.obj,.md2,.md3,.md5,.dae (somewhat), .ase,.3ds, and others)
• Level of Detail (LOD) support - Yes
• Lighting support- Yes
• Shaders, GUI, Input and Terrain/Water support are also preferred, but not required - Yes (no multipass shaders, but otherwise good enough; terrain system does exist; GUI is there and easy to use)

Xith3D is a useful Java-based engine in the spirit of Java3D, but with a lot of the crazy and overengineering removed. The community is helpful, and the documentation is a lot better than I've seen for similar projects. Tutorials exist and are succinct.

Answer 3

Ogre4J

• Cross Platform - Yes
• Written in Java
• Support for OpenGL is a must. Direct3D is optional. - Both
• Some material system - Yes
• Full support for some model format with full animation support (preferred COLLADA) - Ogre animations which has exports for Maya and 3d Studio Max
• Level of Detail (LOD) support - Yes
• Lighting support - Yes
• Shaders, GUI, Input and Terrain/Water support are also preferred, but not required - Yes

Ogre4J is a binding to the Ogre C++ graphics renderer. Going straight to C++ is probably preferred though.

Ogre is a scene graph based rendering engine which does everything you're looking for.