public Vector2[] GetUVsForTriangle(Vector2[] source, Face face)
 {
     return source;
 }
        string IGeometryGeneratorSource.GetTexture(Face face)
        {
            if (face.Normal.Y != 0)
                return _textureY;

            return _texture;
        }
 string IGeometryGeneratorSource.GetTexture(Face face)
 {
     return face.TextureTag;
 }