Is it possible to move only the upper body with R6?

[HearTheThing (Increstagator)]

Is this possible?
I want all bodyparts to move EXCEPT for the legs.

Like how R15’s Upper Torso functions.

[dthecoolest]

Bending player torso on an R6 rig

Yeah it’s more difficult for R6 like @EZQP3 said. However it’s still possible, The issue is changing the rotation Torso motor changes the rotation of the legs. However, to counteract this I have added an inverse rotation so it works. The script I adapted is from @CleverSource in this post, a lot of things needed to be changed as well such as the CFrame order with rotation * OriginalC0 in order to apply the rotation in the correct direction. [R6 Head and Torso Look at mouse] Edi…

[HearTheThing (Increstagator)]

That’s cool, but I’m not too good at scripting or math. I’m not really sure how to understand this.

[dthecoolest]

Let me try to represent it further by breaking it down. This took me months to learn and I learnt it by piecing together code like search “How to make your arm point at mouse”

Before any changes, the C0 remains at constant rotation so nothing is unchanged.

local WaistOriginC0 = Waist.C0

RunService.RenderStepped:Connect(function() 
	local CameraCFrame = Camera.CoordinateFrame

	--local rotationWaistCFrame = CFrame.Angles(math.rad(90),0,0)
	local rotationWaistCFrame = CFrame.new()

	local goalWaistCFrame = rotationWaistCFrame*WaistOriginC0
	Waist.C0 = goalWaistCFrame.Rotation + WaistOriginC0.Position

Then you add a rotation of 90 degrees on the waist “global” x axis, by global I mean not really global in the rotation along (1, 0, 0) relative to origin axis, but not using the CFrame Rotation axis already present in the WaistOriginC0

	local rotationWaistCFrame = CFrame.Angles(math.rad(90),0,0)

	local goalWaistCFrame = rotationWaistCFrame*WaistOriginC0

The “global X axis” is visualized there and the rotation direction using the Right hand curl rule for vector rotations,

Also be aware order matters and swapping it will get you a different result, this rotates the WaistOriginC0 by the local X axis within the original C0 CFrame which is in a different direction, infact it’s the opposite:

	local goalWaistCFrame = WaistOriginC0*rotationWaistCFrame

The important bit and the confusing one is the last one applying the counter inverse rotation.

TBH IDK how I came up with it I believe I just tried applying the inverse rapidly and change the order and permutation of the multiplication. But definitely :Inverse() was needed to apply the opposite rotation that was done to the root torso onto the legs.

Also the code below doesn’t rely on the previous rotation code just the C0 and a constant which is the origin C0 which was the C0 before any changes were done.

	local currentLegCounterCFrame = Waist.C0*(WaistOriginC0:Inverse())

	local legsCounterCFrame = currentLegCounterCFrame:Inverse()

	RHip.C0 =  legsCounterCFrame*RHipOriginC0
	LHip.C0 = legsCounterCFrame*LHipOriginC0

Funny result lol:

R6 Funny Walk

[HearTheThing (Increstagator)]

Thank you so much for explaining it to me. It’s so much clearer now.