Issue Tweening a Character Model

[OliePapis (Olie_progamer)]

Hello,

I have the feeling that I am missing something really basic, but spent some time reading and trying things out and ended up nowhere… so hopefully you can throw some light.

What I want to do?
I have a 3d model character rendered on my UI, inside a ViewportFrame and I’m trying to keep this character rotating on the Y axis.

Here’s my code:

local classSelectionGUI = PLAYER_GUI:WaitForChild("ClassSelection")
local classOneViewport = classSelectionGUI.ClassContainer.ClassOne.Viewport

-- Class One Model
local classOneModel = REPLICATED_STORAGE.items.classes.class01:Clone()
classOneModel.PrimaryPart.Position = Vector3.new(0,0,0)
classOneModel.Parent = classOneViewport

-- Class One Camera
local classOneCamera = Instance.new("Camera")
classOneCamera.CFrame = CFrame.lookAt(Vector3.new(0,1,6), Vector3.new(0,0,0))
classOneViewport.CurrentCamera = classOneCamera

-- Class One Tween
local tweenOneConfig = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.InOut)
local tweenOne = TWEEN_SERVICE:Create(classOneModel.PrimaryPart, tweenOneConfig, {Orientation = Vector3.new(0,360,0)})

tweenOne:Play()

The character renders as expected, but no tween seem to be happening since the character stay still.

One thing that I noticed when I was trying to better position my character (model) is that the line:

classOneModel.PrimaryPart.Position = Vector3.new(0,0,0)

Doesn’t seem to have any effect as I tried to move it by giving a different Vector3 and nothing really happened.

Other than that everything looks ok to me and I really don’t know what to try next. So your help is very much appreciated.

[os_clock]

Put a world model into the viewport frame and then put the model in the world model if you haven’t already.

[OliePapis (Olie_progamer)]

I just did it, and it noticed that now my character is playing idle animation, which is great… you solved a problem I would have ahead, so thanks for that.

The Tween still not happening though

EDIT: Also noticed that now I can position my character (model) with the line that previously wasn’t working.

[os_clock]

Try this:

local classSelectionGUI = PLAYER_GUI:WaitForChild("ClassSelection")
local classOneViewport = classSelectionGUI.ClassContainer.ClassOne.Viewport

-- Class One Model
local classOneModel = REPLICATED_STORAGE.items.classes.class01:Clone()
classOneModel.PrimaryPart.Position = Vector3.new(0,0,0)
classOneModel.Parent = classOneViewport

-- Class One Camera
local classOneCamera = Instance.new("Camera")
classOneCamera.CFrame = CFrame.lookAt(Vector3.new(0,1,6), Vector3.new(0,0,0))
classOneViewport.CurrentCamera = classOneCamera

-- Class One Tween
spawn(function()
while task.wait(0.001) do
local ModelCFrame = classOneModel:GetPrimaryPartCFrame()
ModelCFrame *= CFrame.Angles(0,0.05,0)
classOneModel:SetPrimaryPartCFrame(ModelCFrame)
end
end)

[OliePapis (Olie_progamer)]

I got it “working” by changing the code inspired on your suggestion:

local tweenOneConfig = TweenInfo.new(5, Enum.EasingStyle.Linear, Enum.EasingDirection.InOut, -1, true, 0)
local goal = {}
goal.CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0,360,0)
local tweenOne = TWEEN_SERVICE:Create(classOneModel.PrimaryPart, tweenOneConfig, goal)

Despite the fact I’m pushing for 360 rotation the model only rotates 90 degrees, not sure what I am missing.

[os_clock]

change:

goal.CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0,360,0)

to:

goal.CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0,math.rad(360),0)

or:

goal.CFrame = classOneModel.PrimaryPart.CFrame * CFrame.FromEulerAnglesXYZ(0,360,0)

[OliePapis (Olie_progamer)]

Thanks again for the quick reply.

The approach with math.rad makes the model stay still while the one with fromEulerAnglesXYZ yields the same results of the current implementation

[os_clock]

Try this:

local tweenOneConfig = TweenInfo.new(5, Enum.EasingStyle.Linear, Enum.EasingDirection.InOut, 0, true, 0)
local goal = {}
goal.CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0,1440,0)
local tweenOne = TWEEN_SERVICE:Create(classOneModel.PrimaryPart, tweenOneConfig, goal)

My reply may send twice cause my wifi was being weird when i sent it the first time.

[OliePapis (Olie_progamer)]

Hey man, thanks again.

Did some good reading and looks like the Tween always find the shortest path to execute.

What did work so far was:

local tweenOne = TWEEN_SERVICE:Create(
    classOneModel.PrimaryPart,
    tweenOneConfig, 
    { CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(120),0) }
)
local tweenTwo = TWEEN_SERVICE:Create(
    classOneModel.PrimaryPart,
    tweenOneConfig, 
    { CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(240),0) }
)

local tweenThree = TWEEN_SERVICE:Create(
    classOneModel.PrimaryPart,
    tweenOneConfig, 
    { CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(360),0) }
)

tweenOne.Completed:Connect(function() 
    print("one finished")
    tweenTwo:Play()
end)

tweenTwo.Completed:Connect(function() 
    print("two finished")
    tweenThree:Play()
end)

tweenThree.Completed:Connect(function() 
    print("three finished")
    tweenOne:Play()
end)

For now it’s okay, but there must be a better or cleaner way to do it… I’ll keep the topic opened.

But really appreciate the help so far @os_clock

[os_clock]

I have a cleaner way to do it:

for i=0,360,120 do
local tween = TWEEN_SERVICE:Create(
    classOneModel.PrimaryPart,
    tweenOneConfig, 
    { CFrame = classOneModel.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(i),0) }
)

tween:Play()

tween.Completed:Wait()
end