Why isn't this Quaternion to CFrame rotation the same as the one im seeing in Blender?

Hello, so I’m trying to convert a quaternion to a CFrame Rotation Matrix but it doesn’t seem to look like the one im seeing in Blender though?

Any clue what could be wrong?

local part = workspace.Part
local x,y,z,w = .780,-0.158,0,.606

local r00 = 1 - 2*y*y - 2*z*z
local r01 = 2*x*y - 2*w*z
local r02 = 2*x*z + 2*w*y

local r10 = 2*x*y + 2*w*z
local r11 = 1 - 2*x*x - 2*z*z
local r12 = 2*y*z - 2*w*x

local r20 = 2*x*z - 2*w*y
local r21 = 2*y*z + 2*w*x
local r22 = 1 - 2*x*x - 2*y*y

local cframe = CFrame.fromMatrix(part.CFrame.Position,
   Vector3.new(r00, r10, r20),
   Vector3.new(r01, r11, r21),
   Vector3.new(r02, r12, r22)
)

part.CFrame = cframe

maybe your quaternion is not normalized:

local magnitude = math.sqrt(x*x + y*y + z*z + w*w)
x, y, z, w = x / magnitude, y / magnitude, z / magnitude, w / magnitude

What does normalizing it do again?

Yeah normalizing it doesn’t work it still creates the same wacky rotation unlike the one im seeing in Blender

Roblox
image

Blender

did you do it like this:

local x, y, z, w = 0.707, 0, 0, 0.707
local magnitude = math.sqrt(x*x + y*y + z*z + w*w)
x, y, z, w = x / magnitude, y / magnitude, z / magnitude, w / magnitude
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Yeah I did it exactly like that but it’s not yielding the same results though

Did you use the numbers i gave you (90 degree around X axis)

Yeah but I’m not trying to get it to work with just 90 degrees around the X-Axis, im sure it will work but that’s not the rotation I want

This is the one I want

local x,y,z,w = .780,-0.158,0,.606

Thanks for trying eventually I got it to work!
@VonsRevenges

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