Nun habe ich nur noch schwarze Polys
TextureInfo stoneTex = new TextureInfo(TextureManager.getInstance().getTextureID(textureName));
stoneTex.add(TextureManager.getInstance().getTextureID("fow_left"), TextureInfo.MODE_MODULATE);
// Upper
addTriangle(upperLeftBack, upperLeftFront, upperRightBack, stoneTex);
addTriangle(upperRightBack, upperLeftFront, upperRightFront, stoneTex);