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lua/autorun/dem_init.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+if CLIENT then
+	local math_Clamp = math.Clamp
+	local render_GetLightColor = render.GetLightColor
+	local default0 = Vector(0,0,0)
+	local defaultTint = Vector()
+
+    matproxy.Add({
+        name = "DynamicEnvMap",
+        init = function(self,mat,values)
+            self.Result = values.resultvar
+
+			self.TintScale = mat:GetVector("$DEM_TintScale") or defaultTint
+			self.Multiplier = mat:GetFloat("$DEM_Multiplier") or 1
+			self.ClampMin = mat:GetVector("$DEM_ClampMin") or default0
+			self.ClampMax = mat:GetVector("$DEM_ClampMax")
+			self.Color = (mat:GetVector("$DEM_Color") or mat:GetVector("$color")) or defaultTint
+        end,
+        bind = function(self,mat,ent)
+            if (!IsValid(ent)) then return end
+
+			local finalResult = defaultTint
+			local mult = self.Multiplier
+			local clampMin = self.ClampMin
+			local clampMax = self.ClampMax
+			local tint = self.TintScale *self.Color
+			local luminance = render_GetLightColor(ent:GetPos() +ent:OBBCenter()) *mult
+			finalResult = (tint *luminance) *mult
+			if clampMax then
+				finalResult.x = math_Clamp(finalResult.x,clampMin.x,clampMax.x)
+				finalResult.y = math_Clamp(finalResult.y,clampMin.y,clampMax.y)
+				finalResult.z = math_Clamp(finalResult.z,clampMin.z,clampMax.z)
+			end
+
+			-- print(tint,self.Color,finalResult)
+			mat:SetVector(self.Result,finalResult)
+        end
+    })
+
+    print("DynamicEnvMap proxy successfully loaded!")
+end
+
+/*
+    Add this to your VMT to initialize the proxy:
+
+	"$DEM_TintScale" 			"[1 1 1]" // Color scaling essentially, if you want default envmap tint, leave this as is
+	"$DEM_Multiplier" 			"1" // Multiplies the output, should change this based on other $envmap settings that alter the strength/color
+	"$DEM_ClampMin" 			"[0 0 0]" // Optional, clamps the output to a minimum value
+	"$DEM_ClampMax" 			"[1 1 1]" // Optional, clamps the output to a maximum value
+	"$DEM_Color" 				"[1 1 1]" // Optional, changes the envmaptint, otherwise it will use $color (or white) by default
+
+	"Proxies" 
+	{
+		"DynamicEnvMap"
+		{
+			resultVar	"$envmaptint"
+		}
+    }
+*/