Note that specular light is applied unconditionnaly, thus every object will shine.
TODO : Specular map should be defined using texture or a material flag.
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14756 178a84e3-b1eb-0310-8ba1-8eac791a3b58