1. apireference
2. input
3. mouse

Origin

Property of: Mouse

Value Type: CFrame

local unitRay = mouse.UnitRay
local origin = mouse.Origin
-- unitRay.Direction = origin.p
-- unitRay.Direction ≈ origin.lookVector

Code Samples

Mouse Origin vs Mouse Hit vs CurrentCamera Position

The code below visualizes the difference between Mouse/Hit and Mouse/Origin. In order to do this, the code uses the DataType/Vector3 positions of the hit and origin DataType/CFrame values using .p.

The difference is that the origin is “where the mouse came from” (its origin) and the hit is the position where the mouse hits (is when the player presses their mouse).

This example also visualizes that the mouse origin is very similar to the position of the CurrentCamera by printing the magnitude (distance) between the two positions.

local mouse = game.Players.LocalPlayer:GetMouse()
local camPos = game.Workspace.CurrentCamera.CoordinateFrame.p

print("-------------------------------------------------")
print("Mouse.Hit:\t|",  mouse.hit.p)
print("camPos:\t|", camPos)
print("Mouse.Origin:\t|", mouse.Origin.p)
print("-------------------------------------------------")
print("Magnitude:\t|",(mouse.Origin.p - camPos).magnitude)
print("-------------------------------------------------")