s&box

components/nightvision.cs

A scene component that applies a night vision style postprocessing to the camera. OnStart caches the scene camera GameObject, OnUpdate removes postprocess components on proxies and otherwise ensures Tonemapping, ColorAdjustments and DepthOfField components exist and sets a few properties (exposure, brightness, saturation, focus range).

using Sandbox;

public class NightVision : Component
{
	GameObject c;
	protected override void OnStart()
	{c = Scene.Camera.GameObject;}
	
	protected override void OnUpdate()
	{
		if (IsProxy)
		{
			c.GetOrAddComponent<Tonemapping>().Destroy();
			c.GetOrAddComponent<ColorAdjustments>().Destroy();
			c.GetOrAddComponent<DepthOfField>().Destroy();
		return; }
		
		var tm = c.GetOrAddComponent<Tonemapping>();
		var ca = c.GetOrAddComponent<ColorAdjustments>();
		var dof = c.GetOrAddComponent<DepthOfField>();
		
		tm.MaximumExposure = 5;
		tm.Rate = 10;
		
		ca.Brightness = 2;
		ca.Saturation = 0;
		
		dof.FocusRange = 1000;
	}
}