Hey There!, What i need is a good method to make bobbing for my viewmodel, what I have now is a decent controller,
https://gyazo.com/6bfaba907250a7b948de2d63e6fce2d9
The Code (literally just this):
but what I want to achive is something like this:
https://gyazo.com/8c2e168cb53ef9cfbedf971fafa7b77d
Using a sine or cosine wave should be able to provide that bobbing motion. This is actually a very good method since you can make the bobbing more aggressive by changing the graph’s amplitude.
local function update()
local t = tick()
if humanoid.MoveDirection.Magnitude > 0 then
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local cf = CFrame.new(x, y, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
else
ViewModel.Head.CFrame = Camera.CFrame
end
end
This code I found on a different post and was just to give you an idea of the math equations and how they are used.
That looks perfect, I’ll quickly give it a try. thank you so much.
Alright, thanks to you i got a good idea of the math. https://gyazo.com/45636983c026da8f7692eddf580fb4b1
now though. i need to find a way to make the transition from bobbing and idle actually smooth.
any suggestions?
I guess you could use some tweening, try using TweenService:GetValue()
Try this
local TweenService = game:GetService("TweenService")
local TweenTime = 0.3 -- Amount of time for transmission
local startTime = 0
local t = tick()
local function update()
if humanoid.MoveDirection.Magnitude > 0 then
t = tick()
startTime = 0
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local cf = CFrame.new(x, y, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
else
if startTime == 0 then startTime = tick() end
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local alpha = TweenService:GetValue(math.min((tick() - startTime) / TweenTime, 1), Enum.EasingStyle.Cubic, Enum.EasingDirection.Out)
local cf = CFrame.new(x * alpha, y * alpha, 0)
ViewModel.Head.CFrame = Camera.CFrame
end
end
What is an alpha value? 30 characters
Updating every time
RunService.RenderStepped
Doesn’t make the tween even noticable, so what should I do? fire every .3 seconds?
Thank you so much for the help btw
Could I see a GIF? (30 characters)
or you could try increasing tween time
Oh wait I think I Found out what the problem is, change the alpha variable line to
local alpha = 1 - TweenService:GetValue(math.min((tick() - startTime) / TweenTime, 1), Enum.EasingStyle.Cubic, Enum.EasingDirection.Out)
I forgot to invert the value so it goes from 1 to 0 instead of 0 to 1
Apparentlly it still looks like the gif i just sent. Btw i can send the place if you want to.
I’m not sure what the problem is but I’ve done some changes here and hopefully it works this time
local TweenService = game:GetService("TweenService")
local TweenTime = 0.3 -- Amount of time for transmission
local startTime = 0
local t = tick()
local function update()
if humanoid.MoveDirection.Magnitude > 0 then
t = tick()
startTime = 0
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local cf = CFrame.new(x, y, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
else
if startTime < 1 then startTime = tick() end
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local alpha = 1- (TweenService:GetValue(math.min((tick() - startTime) / TweenTime, 1), Enum.EasingStyle.Cubic, Enum.EasingDirection.Out))
local cf = CFrame.new(x * alpha, y * alpha, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
end
end
I finally have everything i need!. thank you so much. if you want the place feel free to dm me, Have an amazing day kind sir.
(yes it worked)
You are welcome 
Can I see how it looks like now?
https://gyazo.com/a9c156877422a3f298eb8a68acaddb4d like this
im having some problems udjusting the intensity of the bobbing, so uh, if you dont mind could i know how?, apparentlly once you change it from the x and y value it’s still not enough. thanks again
just multiply the x and y values
so it’s something like
local intensity = 1.2
x * intensity
I think this should have all your needs
local TweenService = game:GetService("TweenService")
local TweenTime = 0.3 -- Amount of time for transmission
local startTime = 0
local Intensity = 1.2
local lastState = 0
local t = tick()
local function update()
if humanoid.MoveDirection.Magnitude > 0 then
t = tick()
if lastState == 0 then lastState = 1 startTime = tick() end
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local alpha = (TweenService:GetValue(math.min((tick() - startTime) / TweenTime, 1), Enum.EasingStyle.Cubic, Enum.EasingDirection.Out))
local cf = CFrame.new(x * alpha * Intensity, y * alpha * Intensity, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
else
if lastState == 1 then lastState = 0 startTime = tick() end
-- do math
local x = math.cos(t * 5) * 0.25
local y = math.abs(math.sin(t * 5)) * 0.25
local alpha = 1- (TweenService:GetValue(math.min((tick() - startTime) / TweenTime, 1), Enum.EasingStyle.Cubic, Enum.EasingDirection.Out))
local cf = CFrame.new(x * alpha * Intensity, y * alpha * Intensity, 0)
ViewModel.Head.CFrame = Camera.CFrame * cf
end
end
Oh thank you so much!, didnt even have to change some settings, you are amazing.
also changed the solution to that
Please explain alpha values, if you don’t mind.
Oh sorry I forgot to reply, It’s a a float between 0 and 1 that I used for tweening, so If I multiply alpha by a value It’s the same as tweening it but this one works with my own calculation, so If i want to start a tween from the middle then I can just give it alpha = 0.5 and then start going up to 1
I used cubic easing so here is how it should look like
