Thank you for this info. I almost forgot this option.

I am really impressed by the good options for lights and shadows (PRT ):

• Point, Directional, and Spot lights supported
  
• Managed lighting system to automatically select the best active lights for the object
  
• Standard per-vertex lighting with transform and lighting support
  
• Per-pixel lighting with bumpmapping support
  
• Offset/Parallax tangent bumpmapping support
  
• Cubemap filter for point light and bumpmapping
  
• Material system with ambient, diffuse, emissive, specular, and power support
  
• Per-Pixel and per-vertex precomputed radiance transfer (PRT) for meshes
  Lightmap support for meshes and terrain
  

But what I missed: scene-management. Did you find anyting about scene-management? How can I organize big worlds with lots of models / rooms and objects? They have a good terrain renderer but what about the other stuff like grass, trees, indoors?
Maybe I just did not find it.

Best regards,
Frank