{"id":190,"date":"2025-01-19T20:34:35","date_gmt":"2025-01-20T01:34:35","guid":{"rendered":"https:\/\/kushaltimsina.com\/blog\/?p=190"},"modified":"2025-02-08T11:52:26","modified_gmt":"2025-02-08T16:52:26","slug":"roblox-vector3-explained-visually","status":"publish","type":"post","link":"https:\/\/kushaltimsina.com\/blog\/2025\/01\/19\/roblox-vector3-explained-visually\/","title":{"rendered":"Roblox Vector3 Explained Visually"},"content":{"rendered":"\n

So what is a Vector3 <\/a>in Roblox scripting?<\/p>\n\n\n\n

In this article, I’ll provide you with an answer.<\/p>\n\n\n\n

And along the way, I’ll provide visual diagrams to really help you understand what Vector3s are in Roblox scripting.<\/p>\n\n\n\n

What is a Vector3?<\/strong><\/h2>\n\n\n\n

A Vector3 is basically a set of 3 numbers, like (5, 5, 5).<\/p>\n\n\n\n

One way Vector3s are used is to represent how large something is.<\/p>\n\n\n\n

Using a Vector3 for an Object’s Size <\/strong><\/h3>\n\n\n\n
\"A<\/figure>\n\n\n\n

See this cube? <\/p>\n\n\n\n

If I asked you “how large is it?”, I would expect you to tell me its height, width, and length.<\/p>\n\n\n\n

That is, I would expect you to say something like “that cube is 5 studs wide, 5 studs tall, and 5 studs long.”<\/p>\n\n\n\n

What is a Vector3 in Roblox scripting?<\/strong><\/h3>\n\n\n\n

In Roblox scripting, we can convey this information by using a Vector3.<\/p>\n\n\n\n

part.Size = Vector3.new(5, 5, 5)<\/code><\/pre>\n\n\n\n
This is the exact same as saying “Set the cube’s Size to 5 studs wide, 5 studs tall, and 5 studs long.”<\/p>\n\n\n\n
The difference is that instead of saying all of those unnecessary words, we condensed it down into 3 numbers: Vector3.new(5, 5, 5)<\/code>.<\/p>\n\n\n\n
Now, what about this Part?<\/p>\n\n\n\n
\"A<\/figure>\n\n\n\n
It’s 10 studs wide, 3 studs tall, and 5 studs long.<\/p>\n\n\n\n
We can once again elegantly represent that information into 3 numbers: A Vector3!<\/p>\n\n\n\n
local part = Instance.new(\"Part\", workspace)\npart.Size = Vector3.new(10, 3, 5)<\/code><\/pre>\n\n\n\n
Here, we’re telling Roblox “Create a Part, and put it inside of Workspace.”<\/p>\n\n\n\n
Then, we’re telling Roblox to “Give the Part a width of 10, a height of 4, and a length of 3.”<\/p>\n\n\n\n
Easy, right?<\/p>\n\n\n\n
Using a Roblox Vector3 with an Object’s Position<\/strong><\/h3>\n\n\n\n
We can also use a Vector3 to manipulate an object’s position.<\/p>\n\n\n\n
Let’s say I’m temporarily blind and you’re trying to describe where this Part is to me.<\/p>\n\n\n\n
\"A<\/figure>\n\n\n\n
How will you describe it to me?<\/p>\n\n\n\n
Would you say “it’s on the Baseplate”?<\/p>\n\n\n\n
You’re right. It is. I would be able to understand.<\/p>\n\n\n\n
But what if there are 2 parts?<\/p>\n\n\n\n
\"A<\/figure>\n\n\n\n
And I want to know exactly<\/strong> where the green Part is. And I want to know exactly<\/strong> where the red Part is.<\/p>\n\n\n\n
You’d have to use exact numbers to give me that information. <\/p>\n\n\n\n
That’s where Vector3s in Roblox scripting come in!<\/p>\n\n\n\n
Remember that a Vector3 is just 3 numbers. <\/p>\n\n\n\n
Every object in 3D space can move in 3 different directions: X, Y, and Z.<\/p>\n\n\n\n
\"A<\/figure>\n\n\n\n
The red arrow represents the X direction (left and right).<\/p>\n\n\n\n
The blue arrow represents the Z direction (forward and backward).<\/p>\n\n\n\n
The green arrow represents the Y direction (up and down)<\/p>\n\n\n\n
The Part is currently located at (0, 6, 0). <\/p>\n\n\n\n
In a Vector3: <\/p>\n\n\n\n