Global Illumination OPEN SOURCE

.()
 lights = {}
 TRASH = {}
 lumens = {}

 sundir = .Lighting:()
().gi = 
().intensity = 
().suncolor = .(,,)
().glow = 
().lglow = 
().polight = 
().splight = 
().sulight = 
 brightlimit = {Min = , Max = }
 rangelimit = {Min = , Max = }
().raymult = 

 oldfograte = fograte

.Lighting.LightingChanged:(()
	sundir = .Lighting:()
)

 fogtimer = 

 ()
	 fogenabled ==  
		fogtimer = 
	


  (Way: enum,Cframe: cframe)
	 Way == .NormalId.Back   -Cframe.LookVector 
	 Way == .NormalId.Front   Cframe.LookVector 
	 Way == .NormalId.Left   -Cframe.RightVector 
	 Way == .NormalId.Right   Cframe.RightVector 
	 Way == .NormalId.Top   Cframe.UpVector 
	 Way == .NormalId.Bottom   -Cframe.UpVector 


 (part)
	 part:() 
		 part.Transparency >   part.CastShadow ==  
			 
		
	


 (orig,direction,dt)
	 params = RaycastParams.()
	params.FilterType = .RaycastFilterType.Exclude
	params.FilterDescendantsInstances = {.Players.LocalPlayer.Character}
	 ray = .Workspace:(orig,direction*,params)
	
	 ray 
		 col = 
		 bright = 
		 passes = 
		 islava = 
		 ray.Instance:() 
			col = .Workspace.Terrain:(ray.Material)
			 ray.Material == .Material.CrackedLava  lglow ==  
				passes = 
				bright = intensity
				islava = 
			
		 ray.Instance:() 
			col = ray.Instance.Color
			 ray.Material == .Material.Neon  glow ==  
				passes = 
				bright = intensity
			
		
		
		 islight = 
		 baselight = 
		 mainlight = 
		 passes ==   gi ==  
			 sunray = .Workspace:(ray.Position+ray.Normal*,sundir*,params)
			  sunray 
				bright = intensity
				col = .(col.R*suncolor.R,col.G*suncolor.G,col.B*suncolor.B)
			
				 check = (sunray.Instance)
				 check 
					bright = intensity
					col = .(col.R*sunray.Instance.Color.R*suncolor.R,col.G*sunray.Instance.Color.G*suncolor.G,col.B*sunray.Instance.Color.B*suncolor.B)
				
			
			 _, light  lights 
				 light 
					 p = light.Parent
					 ((light:()  polight == )  (light:()  splight == )  (light:()  sulight == ))  p 
						 light.Enabled ==  
							 b = light.Parent
							 b:() 
								b = b.Parent.Parent
							
							 pos = 
							 cf = 
							 pass = 
							 p:() 
								pass = 
								pos = p.Position
								cf = p.CFrame
							 p:() 
								pass = 
								pos = p.WorldPosition
								cf = p.WorldCFrame
							
							 mag = (pos-ray.Position).Magnitude
							 mag <= light.Range  pass ==  
								 checked = 
								 light.Shadows ==  
									checked = 
									 ray = .Workspace:(ray.Position+ray.Normal*,(pos-(ray.Position+ray.Normal*))*,params)
									 ray 
										 ray.Instance == b 
											checked = 
										
									
								
								 checked ==  
									 light:() 
										checked = 
										 spotlightToPoint = (ray.Position-pos).Unit
										 dir = cf.LookVector
										 light.Face ==  
											dir = cf.LookVector
										 light.Face ==  
											dir = -cf.LookVector
										 light.Face ==  
											dir = cf.RightVector
										 light.Face ==  
											dir = -cf.RightVector
										 light.Face ==  
											dir = cf.UpVector
										 light.Face ==  
											dir = -cf.UpVector
										
										 dotproduct = spotlightToPoint:(dir)
										 requireddot = ((light.Angle/)/)
										 dotproduct >= requireddot 
											checked = 
										
									 light:() 
										checked = 
										 cam = p:()
										  cam 
											cam = .()
											cam.Parent = p
										
										cam.CameraType = .CameraType.Scriptable
										cam.FieldOfView = light.Angle
										cam.CFrame = .(pos)
										 dir = (light.Face,cam.CFrame)
										cam.CFrame = .(pos,pos+dir)
										 _, OnScreen = cam:(ray.Position)
										 OnScreen 
											checked = 
										
										cam:()
									
									 checked ==  
										islight = 
										 light 
											mainlight = light
										
										 b 
											baselight = b
										
										col = .(col.R*light.Color.R,col.G*light.Color.G,col.B*light.Color.B)
										 bright ==  
											bright = intensity*light.Brightness
										
											bright *= light.Brightness
										
									
								
							
						
					
				
			
		
		
		 ray.Instance.Transparency >=  
			bright = 
		
		 bright >  
			bright -= ray.Distance/
			 light = .()
			 attach = .()
			 islight ==   baselight ~=  
				attach.Parent = baselight
			
				attach.Parent = ray.Instance
			
			
			bright = .(bright,brightlimit.Min,brightlimit.Max)
			
			attach.WorldPosition = ray.Position+ray.Normal*
			light:()
			light.Parent = attach
			light.Shadows = 
			light.Color = col
			light.Enabled = 
			light.Brightness = bright
			light.Range = .(ray.Distance/,rangelimit.Min,rangelimit.Max)
			
			 islava ==  
				 emberchance = .(,)
				 emberchance ==  
					 ember = .LavaEmber:()
					ember.Parent = attach
					ember.Color = ColorSequence.(col)
					ember:()
				
			
			.(TRASH,attach)
			 data = {
				Light = light,
				Attachment = attach,
				BasePosition = attach.WorldPosition,
				BaseBrightness = light.Brightness,
				BaseLight = mainlight,
				Events = {}
			}
			  ()
				 data 
					 data.BaseLight ~=  
						 data.BaseLight.Enabled ==  
							data.Light.Brightness = 
						
							data.Light.Brightness = ((data.BaseLight.Range-(data.Attachment.WorldPosition-data.BasePosition).Magnitude)/data.BaseLight.Range)*data.BaseBrightness*data.BaseLight.Brightness
						
					
						data.Light.Brightness = ((data.Light.Range-(data.Attachment.WorldPosition-data.BasePosition).Magnitude)/data.Light.Range)*data.BaseBrightness
					
				
			
			data.Events[] = attach:():(changeData)
			 mainlight 
				data.Events[] = mainlight:():(changeData)
				data.Events[] = mainlight:():(changeData)
			
			.(lumens,data)
			.(/dt,()
				.(TRASH,.(TRASH,attach))
				 _, ev  data.Events 
					 ev 
						ev:()
					
				
				.(lumens,.(lumens,data))
				attach:()
			)
		
	


  (light)
	 .(lights,light) 
		.(lights,.(lights,light))
	


  (light)
	 light:()  light:()  light:() 
		  light:() 
			.(lights,light)
			 ev1 = 
			 ev2 = 
			ev1 = light.Destroying:(()
				(light)
				 ev1 
					ev1:()
				
			)
			ev2 = light:():(()
				  light:() 
					(light)
					 ev2 
						ev2:()
					
				
			)
		
	


 _, light  .Workspace:() 
	(light)


.Workspace.DescendantAdded:((light)
	(light)
)

 toggle = 
 run = 

 fogenabled ==  
	()


run = :().RenderStepped:((dt)
	 cam = .Workspace.CurrentCamera
	 cam 
		 gi ==   glow ==   lglow ==  
			 toggle ==  
				toggle = 
				 i = , .(raymult/dt/) 
					 y = .(,cam.ViewportSize.Y)
					 x = .(,cam.ViewportSize.X)
					 ray = cam:(x,y,)
					(cam.CFrame.Position,ray.Direction.Unit,
						dt*raymult
					)
				
			
				toggle = 
			
		
	
)