The material or the texture look odd, it change with the Lamp. The first three pictures below show the changes in blender render.
And I also write the script to change texture to cycle, but when i change to cycle render, some objects look odd, like the picture 4. I use more picture to show another object. The order is blender render with Lamp withou shadow, the second one is with Lamp shadow, and the last one is cycle render
blender render without light shadow
blender render and the light chose ray shadow
Cycler
The order is blender render with Lamp withou shadow, the second one is with Lamp shadow, and the last one is cycle render
