How does the new CFrame System work?

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#1

Hi, I just wanted to ask you if you can tell me why the code doesn’t work as desired because I want to learn when to use and how to use CoordinateFrames. My problem is that when I run this code (this is just a test code btw):
workspace.Part.CFrame = CFrame.Angles(math.rad(45), math.rad(45), 0) ,

I want it only to rotate and not to go to the origin. I don’t understand. I just used CFrame.Angles() to rotate and not CFrame.new(0,0,0).

I also looked at the docs and this post from a couple months ago: Improved CFrame support in Studio but I couldn’t find a solution.

I have no idea what is going on there and what math.rad() is and what CFrame generally is, I have only watched TheDevKings and AlvinBlox’s tutorials but these are probably outdated since they’re four years old

And what if I want to do it with a model? Should I use PrimaryPartCFrame? Because when I do Model.CFrame it doesn’t work anymore

And by the way: The orientation script didn’t even work:
image

#2

Hello, for you first question you can get the part position and multiply with the angles:

workspace.Part.CFrame = workspace.Part.CFrame * CFrame.Angles(math.rad(45), math.rad(45), 0)

For the second question, yes, you have to get the Model PrimaryPart to move a model CFrame, but before doing that u have to make sure the model has a primary part. One way to move a model can be PivotTo().

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#3

Ok thanks but can someone explain what CFrame is or link an updated tutorial? I still appreciate your answer but I don’t quite understand why I have to multiply it?

#4

CFrame.Angles is for rotation value in a CFrame, and CFrame.new is for the position value. You cannot just use CFrame.Angles, since you didn’t define a position. To have a rotation and a position, you can use

local YourPositionVariable = workspace.Part.CFrame
YourPositionVariable * CFrame.Angles(math.rad(45), math.rad(45), 0)
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#5

You just need to multiply it for rotations. A simple tutorial: Roblox CFrames - Position and Rotate Objects (2022 Roblox Studio Tutorial Beginners Series) (B003) - YouTube

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#6

Ok but why multiply it? Does that have anything to do with maths and why didn’t they just do 2 parameters

#7

If you add the Position and the angles will result in an error. Multiplying changes the part orientation

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#8

I’m honestly not sure, it’s probably to do with math otherwise I don’t see why they wouldn’t just do 2 parameters.

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#9

Ok, we’ll just accept it haha. And roblox wants me to write at least ## characters and for some reason they don’t want me to write the count of characters

#10

Hopefully one of the solutions listed here works! Make sure to mark it as the solution if it does btw

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#11

Yeah but I don’t want to use radians because I’m more familiar with degrees. Is there a math.degree() function or do I just put the numbers in naked

#12

put the numbers in by themselves and it should work.

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#13

A CFrame value contains both an object’s positional and rotational values, so by doing obj.CFrame = CFrame.Angles(...) you override an object’s both positional and rotational value and replace them with only a rotational value. Hence the positional value is assumed to be zero.

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#14

Thanks man. I never understood why that is like that, but with your explanation I understand it!

#15

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