public void Render (DrawBatch drawBatch, CCTexture2D defaultTexture)
{
//device.Textures[0] = _texture ?? defaultTexture;
//device.DrawUserIndexedPrimitives(PrimitiveType.TriangleList, _vertexBuffer, 0, _vertexBuffer.Length, _indexBuffer, 0, _indexBuffer.Length / 3);
drawBatch.RenderBatch(PrimitiveType.TriangleList,
0, _indexBuffer.Length, _indexBuffer,
0, _vertexBuffer.Length, _vertexBuffer,
_texture ?? defaultTexture);
}