How to Reflect an Animation on a Specific Axis?

Help and Feedback Scripting Support
#1

I want to reflect a keyframe sequence on a certain axis. I know there are numerous tools that can achieve this such as Moon Animator, but they all flip on the same axis. For example, instead of flipping from left to right, I want to flip the forward axis to back, if that makes sense.

I understand that I could just rotate the animation any direction (180 degrees on the Y axis for my case) to get the desired pose I want, but since I have many animations, it will be difficult.

Is there a way I can modify this module from an animation mirroring plugin to flip along a different axis?

local module = {}


-- Table containing the paired names of the body parts, NOT the names of the joints
module.AlternateParts = {
	LeftUpperArm = "RightUpperArm",
	LeftLowerArm = "RightLowerArm",
	LeftHand = "RightHand",
	LeftUpperLeg = "RightUpperLeg",
	LeftLowerLeg = "RightLowerLeg",
	LeftFoot = "RightFoot",
	
	RightUpperArm = "LeftUpperArm",
	RightLowerArm = "LeftLowerArm",
	RightHand = "LeftHand",
	RightUpperLeg = "LeftUpperLeg",
	RightLowerLeg = "LeftLowerLeg",
	RightFoot = "LeftFoot",
	
	["Right Arm"] = "Left Arm",
	["Left Arm"] = "Right Arm",
	["Right Leg"] = "Left Leg",
	["Left Leg"] = "Right Leg"
}

-- Private
function module.MirrorPoseCFrame(cf)
	local x, y, z, R00, R01, R02, R10, R11, R12, R20, R21, R22 = cf:components()
	x = -x
	-- R00, R10, R20 (x)
	R10 = -R10
	R20 = -R20
	-- R01, R11, R21 (y) 
	R01 = -R01
	-- R02, R12, R22 (z) 
	R02 = -R02

	return CFrame.new(x, y, z, R00, R01, R02, R10, R11, R12, R20, R21, R22)
end





return module

Code forked from this plugin.

#2

Iā€™m not entirely sure as Iā€™ve never worked with CFrame components directly. But I believe removing either R10 = -R10 or R20 = -R20 will mirror backwards instead? Itā€™s some combination of adding or removing from those set of components at the bottom. Iā€™m sure thereā€™s a way to know for certain, but Iā€™m too tired to figure that out right now.

Hereā€™s a guide I was reading:

1 Like
#3

Thanks for your response; Iā€™ve been trying to tamper with those bottom components but to no avail. I could spend another hour trying more combinations, but thereā€™s just too many to try. Hopefully a CFrame wizard stops by to help out.

1 Like