Don't warn about NiFlipController (already implemented)

components/nifogre/material.cpp

@@ -152,6 +152,7 @@ Ogre::String NIFMaterialLoader::getMaterial(const Nif::ShapeData *shapedata,
         Nif::ControllerPtr ctrls = texprop->controller;
         while(!ctrls.empty())
         {
+            if (ctrls->recType != Nif::RC_NiFlipController) // Handled in ogrenifloader
                 warn("Unhandled texture controller "+ctrls->recName+" in "+name);
             ctrls = ctrls->next;
         }