Scene lighting setup — DirectionalLight, PointLight, SpotLight, SkyBox, AmbientLight, and Fog

var sunGo = Scene.CreateObject();
sunGo.Name = "Sun";
sunGo.WorldRotation = Rotation.From( 45, -60, 0 ); // pitch, yaw, roll

var sun = sunGo.Components.Create<DirectionalLight>();
sun.LightColor    = Color.FromHex( "#FFF5E0" );
sun.Brightness    = 3f;
sun.ShadowsEnabled = true;

var lightGo = Scene.CreateObject();
lightGo.WorldPosition = new Vector3( 0, 0, 100 );

var point = lightGo.Components.Create<PointLight>();
point.LightColor  = Color.FromHex( "#FF8800" );
point.Radius      = 300f;
point.Attenuation = 1f;
point.ShadowsEnabled = false; // point light shadows are expensive

var spot = lightGo.Components.Create<SpotLight>();
spot.LightColor  = Color.White;
spot.Radius      = 500f;
spot.InnerConeAngle = 15f;
spot.OuterConeAngle = 30f;

var skyGo = Scene.CreateObject();
skyGo.Name = "Sky";

var sky = skyGo.Components.Create<SkyBox2D>();
sky.SkyMaterial = Material.Load( "materials/skybox/skybox_day_01.vmat" );
sky.SkyIndirectLighting = true; // sky contributes to ambient GI

var ambientGo = Scene.CreateObject();
var ambient = ambientGo.Components.Create<AmbientLight>();
ambient.LightColor = Color.FromHex( "#404060" ); // cool dark fill

var ddgiGo = Scene.CreateObject();
var ddgi = ddgiGo.Components.Create<IndirectLightVolume>();
ddgi.ProbeDensity = 8f;
ddgi.Size         = new Vector3( 512, 512, 512 );

// Gradient fog (distance-based)
var fogGo = Scene.CreateObject();
var fog = fogGo.Components.Create<GradientFog>();
fog.StartDistance = 500f;
fog.EndDistance   = 3000f;
fog.FogColor      = Color.FromHex( "#C8D8E8" );

// Volumetric fog
var volFog = fogGo.Components.Create<VolumetricFogVolume>();
volFog.Strength = 0.5f;