How to use :ToObjectSpace()/:ToWorldSpace()

[Dodoslayerlid (Rig)]

I searched on the devforum how to use :ToObjectSpace() and :ToWorldSpace(). and all of them werent clear at all i dont understand how both of these things work neither do i know how to use them or what they even do. anything is helpful!

[traxy209]

i think these two are relatives CFrame position

CFrame | Documentation - Hub Création Roblox

[Dodoslayerlid (Rig)]

what does relative mean?. Since in the docs it says CFrame + cf why do we use it if we can do that???. what is it used for though?. so im really confused. thanks so much for help

[traxy209]

Aright let me break this one by one
so ToWorldSpace its basically a center of world
write this code and see what happens
print(game.workspace.Part.CFrame:ToWorldSpace())
and ToObjectSpace prints this and see what happens:
print(game.workspace.Part.CFrame:ToObjectSpace())
make sure to insert the object to referencing

[traxy209]

if you have any questions just ask me

[Dodoslayerlid (Rig)]

@traxy209

print(game.workspace.Part.CFrame:ToWorldSpace())

They are the exact same thing why??? (execpt the toworldspace isnt negative)

[awry_y (Kat)]

Use google… please…

How does :ToObjectSpace work?

for example, we have 2 parts, one named partA and partB respectively. partA is located at (0,5,0) while partB is located at (0,3,0). partB.CFrame:ToObjectSpace(partA.CFrame) this would return (0,2,0) since partA is 2 studs higher than partB. edit: if you’re quite literally asking how it works behind the scenes then @remcodesremcodes is correct

What does ToObjectSpace() and ToWorldSpace() do?

:ToObjectSpace() converts a CFrame relative to the world relative to a specific part. For example let’s say object A is at 0, 10, 0 and object B is at 0, 20, 0. If we ran: print(objectA.CFrame:ToObjectSpace(objectB.CFrame) it would print 0,10,0 as object A is 10 studs above object B. It’s treating object B’s CFrame as the center of the world. :ToWorldSpace() does exactly the opposite and returns a CFrame relative to the center of the world (0, 0, 0). So if object C’s CFrame is 0, 10, 0 away fr…

[Dodoslayerlid (Rig)]

i have seen the second one but didnt understand. the upper one made me understand it but how would this be used???

[awry_y (Kat)]

It can be use in several ways. Too many to be exact. You will know more as you progress in coding. Most use cases are in joint manipulations.

For example:

You can use CFrame:ToObjectSpace to make the players arm go to a specific point in world space.

[Dodoslayerlid (Rig)]

Can they be used to make a part rotate around its edge?. also thanks so much for help

[awry_y (Kat)]

Hm… depends on your method. Not really though.