public void UpdatePointLights(List <PointLight> lights)
{
var lightData = _lightDataMapper.GetPointLightData(lights, maxNumOfPointLights);
if (lightsBuffer.Size < lightData.TotalSizeInBytes)
{
lightsBuffer.Resize(lightData.TotalSizeInBytes);
}
lightsBuffer.UpdateData(0, Marshal.SizeOf <LightAdditionalInfo>(), ref lightData.AdditionalInfo);
lightsBuffer.UpdateData(Marshal.OffsetOf(typeof(CompletePointLightData), "LightData").ToInt32(), Marshal.SizeOf <PointLightData>() * lightData.LightData.Length, lightData.LightData);
lightsBuffer.Bind();
}