Support for tweening RenderSettings

[Danta1st]

Just a suggestion to support adjusting the various colors, etc. in the RenderSettings class/object.

[Demigiant]

I like it! Added to my todo list

[f0ff886f]

Just a note, if folks need something like this you can create some helper static methods in a static class, like this:

public static class GlobalHelpers
{
    private static Tween FogStartDistanceTween;
    private static Tween FogEndDistanceTween;
    private static Tween AmbientColorTween;

    // method to change fog settings
    public static void TweenFogDistances(float start, float end, float time, Action completeLambda = null)
    {
        FogStartDistanceTween.Kill();
        FogEndDistanceTween.Kill();

        FogStartDistanceTween = DOTween.To(() => RenderSettings.fogStartDistance, (x) => RenderSettings.fogStartDistance = x, start, time);
        FogEndDistanceTween = DOTween.To(() => RenderSettings.fogEndDistance, (x) => RenderSettings.fogEndDistance = x, end, time);

        FogStartDistanceTween.OnComplete(() => completeLambda?.Invoke());
    }

    // method to change ambient color
    public static Tween TweenAmbientColor(Color color, float time)
    {
        AmbientColorTween.Kill();

        AmbientColorTween = DOTween.To(() => RenderSettings.ambientLight, (x) => RenderSettings.ambientLight = x, color, time);

        return AmbientColorTween;
    }
}