Rotate model with tween, how?

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#1

So i have this model that i created, i just want to rotate it to the transparent part with a tween, how would i do that?

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here is my tweening code:

local TweenService = game:GetService("TweenService")
local movingPart = script.Parent
local point1 = script.Parent.Parent.Point1


local tweenInfo = TweenInfo.new(
	4, -- number of seconds to complete
	Enum.EasingStyle.Cubic, -- how it moves
	Enum.EasingDirection.InOut, -- how it moves too 
	-1, -- how may times it repeats
	true, -- reverse too aka go back to start
	0 -- seconds before starting
)

local properties = {
	["CFrame"] = point1.CFrame
	--["Position"] = point1.Position + Vector3.new(point1.Position),
}

local tween = TweenService:Create(movingPart, tweenInfo, properties)

tween:Play()
#2

This is an interesting issue.
Now for movig models there exists the function PiviotTo(), but obviously this isn’t tweening.
An idea I have in mind would be for you to create an invisible and anchored part outside of the model place it exactly where the model’s position is. Then use a Weld constraint to connect the model with the part. Use the tween on the part and it should work, I believe.

P…S. I can’t test this myself right now, but I hope it will work. Good luck!

#3

You could use AssemblyAngularVelocity or a related function to simulate a tween, if your model is an assembly (connected).

#4

you could make a loop that rotates the model each time

#5

like this (just change which value rotates)

local RunService = game:GetService("RunService")

local model = script.Parent

local speed = 360 -- degrees per second

RunService.Heartbeat:Connect(function(deltaTime)
	model:PivotTo(model:GetPivot() * CFrame.Angles(math.rad(speed * deltaTime), 0, 0))
end)
#6

Sure, but that will not look smooth because with each physics simulation step you will have the same orientation.

#7

I’m not sure if this is the best approach, but here’s a piece of code I wrote. I got the idea from a post on the DevForum, though I don’t remember the exact source

local function TweenModel(Model, Tween_Info, Result)
	local CFrameValue = Instance.new("CFrameValue") do
		CFrameValue.Value = Model:GetPivot()
	end

	CFrameValue:GetPropertyChangedSignal("Value"):Connect(function()
		Model:PivotTo(CFrameValue.Value)
	end)

	local Tween = TS:Create(CFrameValue, Tween_Info, {Value = Result})
	Tween:Play()
	
	Tween.Completed:Connect(function()
		CFrameValue:Destroy()
	end)
end

-- Example Usage:
local Model = workspace.Model -- Replace with your model reference
local GoalCF = CFrame.new(0, 0, 0) -- Target position
local Tween_Info = TweenInfo.new(5, Enum.EasingStyle.Linear) -- Duration and easing style etc

TweenModel(Model, Tween_Info, GoalCF)
#8

The signal that GetPropertyChangedSignal returns only fires each frame.
It would be good that Roblox give us a way to directly tween models.

1 Like
#9

You’re right, but I suppose that’s the only option for now

2 Likes
#10

thx, u mean like a primary part within the model and just tween the primary part with everything else welded together?

If so, then ik what ure talking about!

#11

We should contact them about that

#12

That will not work. Tweens do not take into account any physics constraints while tweening.

#13

hm weird, ive seen multiple other forums suggest something like that

This is what i was thinking:

  • Have a primary Part
  • Weld all parts together then model them
  • Tween just the primary part to a certain angle degrees rotation

Then the entire model would have rotate it slightly then back with a simple tween

#14

I’ve just tested it and it doesn’t work. It just moves the primary part but the welded part does not follow it.

#15

hmm weird, maybe if you PivotTo(–CFRAME–) with a lerp ?

#16

I’ve made a simple example following that approach:

local asmRoot = workspace.Model:FindFirstChildWhichIsA("BasePart").AssemblyRootPart
local start = asmRoot.CFrame
local init = os.clock()
local time = 5
local endTime = init + time
local goal = CFrame.new(5, 5, 5) * CFrame.Angles(math.deg(- 90), 0, 0)

local conn
conn = game:GetService("RunService").Heartbeat:Connect(function()
	if os.clock() > endTime then
		asmRoot:PivotTo(goal)
		conn:Disconnect()
	else
		asmRoot:PivotTo(start:Lerp(goal, (os.clock() - init) / time))
	end
end)
#17

ill see what i can do with MY knowledge, thakns for the tips tho

#18 
local TweenService = game:GetService("TweenService")
local movingModel = script.Parent
local goalPart = script.Parent.Parent.Point1

do
	local cfv = Instance.new("CFrameValue")
	cfv.Value = movingModel:GetPivot()
	cfv.Changed:Connect(function(new_cf)
		movingModel:PivotTo(new_cf)
	end)
	local tween = TweenService:Create(
		cfv,
		TweenInfo.new(
			4, -- time
			Enum.EasingStyle.Cubic,
			Enum.EasingDirection.InOut,
			-1, -- repeat (-1 = inf)
			true, -- reverse?
			0 -- delay
		),
		{
			Value = goalPart.CFrame
		}
	)
	tween.Completed:Once(function()
		cfv:Destroy()
	end)
	tween:Play()
end
#19

ill try it out, ill let u know if it works and mark it as a the solution! :slight_smile:

#20

got an error, the same one from always

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