diff --git a/scripts/general.lua b/scripts/general.lua
index ccec87a2..40b6ee46 100644
--- a/scripts/general.lua
+++ b/scripts/general.lua
@@ -79,4 +79,18 @@ events.TICK:register(function ()
 	end
 end)
 
-return General
\ No newline at end of file
+events.RENDER:register(function(_, context)
+	local shouldRenderHead = false
+	if (context ~= "FIRST_PERSON" and (not renderer:isFirstPerson())) or
+		context == "FIRST_PERSON_WORLD" or
+		context == "WORLD" or
+		context == "OTHER" or
+		context == "PAPERDOLL" or
+		context == "MINECRAFT_GUI" or
+		context == "FIGURA_GUI" then
+		shouldRenderHead = true
+	end
+	models.models.main.Avatar.Head:setVisible(shouldRenderHead)
+end)
+
+return General
diff --git a/scripts/physics.lua b/scripts/physics.lua
index e2643f51..257dcc63 100644
--- a/scripts/physics.lua
+++ b/scripts/physics.lua
@@ -76,7 +76,7 @@ events.RENDER:register(function (delta, context)
 	local tailRot = vectors.vec3(0, 0, 0)
 	local hairAccessoryLineRot = vectors.vec3(0, 0, 0)
 	local rotLimit = {{{-60, 60}, {-30, 30}}, {{0, 180}, {-90, 90}}} --物理演算の可動範囲：1. 尻尾：{1-1. 上下方向, 1-2. 左右方向}, 2. 髪飾りのヒモ：{2-1. 前後方向, 2-2. 左右方向}
-	if (context ~= "FIRST_PERSON" or client:hasIrisShader()) and (Physics.EnablePyhsics[1] or Physics.EnablePyhsics[2]) then
+	if (context ~= "FIRST_PERSON" or client:hasShaderPack()) and (Physics.EnablePyhsics[1] or Physics.EnablePyhsics[2]) then
 		local playerPose = player:getPose()
 		local rideVehicle = player:getVehicle() ~= nil
 		if SitDown.IsAnimationPlaying or rideVehicle then