private void MoveSun(ComplexObject sceneObjects, float deltaTime)
{
var lights = sceneObjects.GetLightsWiThGlobalModelMatrices();
var light = lights.FirstOrDefault(x => x.Object.Name == "Sun");
if (light != null)
{
light.Object.DiffuseIntensity = SunBrightness;
light.Object.Rotation.X += deltaTime * SunAnimationSpeed;
}
}