Fixed ignoring of materials.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@7699 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/tracks/track.cpp

@@ -437,6 +437,7 @@ void Track::convertTrackToBullet(scene::ISceneNode *node)
         {
             std::string image = std::string(core::stringc(t->getName()).c_str());
             material=material_manager->getMaterial(StringUtils::getBasename(image));
+            if(material->isIgnore()) continue;
             // Special gfx meshes will not be stored as a normal physics body,
             // but converted to a collision body only, so that ray tests
             // against them can be done.