 # What is Unity Vector3? Unity Vector3 Detailed Guide – (2021)

What is Unity Vector3 in this article? I’ll answer his question and talk about the variable type Vector3, its usage areas, and the functions we can use. Vector3 is a type of variable that we can use on the Unity program, which contains 3 float-type variables called x,y,z that correspond to the axes in 3 dimensions, which we use to specify a vector size in short.

We often use this data type in positioning with Transform, changing direction, changing size, and especially when performing physics operations with the Rigidbody component. Only Vector2, which has a lot of common features and functions with a similar type of Vector2, but contains components for the X and y axes. As an example, a cube object that is on our Unity screen has a position value, and this is originally Vector3, and it describes the position of our cube between our game.

Or gravity affects our object with a Rigidbody component, and this quintessential velocity value changes and begins to fall. Gravity (gravity) here is a quç vector and describes the magnitude and direction of the acting force. In the same form, velocity is a velocity vector, describing the direction and magnitude of the velocity.

We moved forward by giving the names X to the horizontal and y to the vertical. You may not have seen the 3-dimensional at school, just if you were a little involved with Unity, it’s 3. you can also predict how the axis, the Z-axis, will work. Here is the Vector3 value, a structure that simply allows us to keep the value of each axis in a variable within itself and allows us to easily apply vector operations.

Now you have understood that these 3 variables I mentioned represent separate axes, I expect that after understanding this, I will now talk about mathematical operations for the Vector3 type. First, I should note that variables of type Vector3 can only add and subtract from each other. In multiplication and division operations, we can use other types in the form of int, float. Unity has different functions that it has provided, since I will only talk about using basic mathematics, I will leave this topic to the continuation of the article.

## Unity Vector3 Mathematical Operations

In the genus Unity Vector3, the process of addition and subtraction is quite simple. Each digit actually processes the axis value with the axis value of the other vector. In other words, let’s define two variables such as a=(1,5,3) and B=(3,5,2), it is not defined in this way in encoding, by the way, I write in this way only for expression purposes. If we perform a-b, there will be a sequel (-2.0.1). We achieved this result by performing 1-3 on the X-axis, 5-5 on the Y-axis, and 3-2 on the most recent Z-axis.

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But it may have caught your attention, and if we do a B-a, the result will not be the same. I’d like you to do B-a in your head now. Calm down, patience, the answer is coming. Yes, b-a=(2,0, -1) output. When we examine this position, the size of the vector we get will not differentiate the value of length (magnitude). But since the vectors indicate a direction, except for size, it can cause us to apply Q three in a very different direction, move. Of course, this is true in subtraction operations, a+b and B+a will always be equal to each other.

## Codes That Can Be Used With Unity Vector3

We will learn about codes that can be used with Unity Vector3 under 3 headings. These headings are divided into properties-variables, public methods, and static methods similarly. Before going to these headings, let me talk about the first Vector3 class, the Constituent function of its type. In this way, let’s first learn how to create a vector variable.

```//creates a new vector<br> // and x =1, y=3, z=5 value assignments.<br> Vector3 FirstVector=new Vector(1,3,5);```

So we have provided a vector variable. Now, before I go to the subheadings, I will talk about some static properties, variables. These are actually variables that save us from writing vector values for quite a long time. First, I will explain it in bulk and immediately show its use in a single code blog.

• Back: Vector3(0,0,-1)
• Down: Vector3(0, -1, 0)
• Forward: Vector3(0, 0, 1)
• Left: Vector3(-1, 0, 0)
• NegativeInfinity: Vector3(float.NegativeInfinity, float.NegativeInfinity, float.NegativeInfinity)
• One: Vector3(1, 1, 1)
• PositiveInfinity: Vector3(float.PositiveInfinity, float.PositiveInfinity, float.PositiveInfinity)
• Right: Vector3(1, 0, 0)
• Up: Vector3(0, 1, 0)
• Zero: Vector3(0,0,0)

## Unity Vector3 Properties-Accessible Variables

These properties are properties that are different for each Vector3 variable, contrary to what we first mentioned.

1. magnitude: returns the size, length value of Vector3 in float.
2. normalized: takes the Vector3 variable and calculates the component values x, y,z, even if the size of the vector is 1 unit. However, it changes the size of the vector, there is no change in its direction.
3. sqrMagnitude: allows us to get the square of the length of the variable. it works faster than the magnitude feature. Because in the calculation steps of this length, the square of the first is obtained, then it takes more operations to get the square root of it and reach the length value.
4. this [int]: allows us to access the value of the variable x,y,z with index values in a similar format as in the same arrays. it has an index value of x : 0, y: 1, and z: 2.
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X: This allows us to get the value of the Vector on the X-axis.
Y: This allows us to get the value of the Vector on the Y-axis.
Z: This allows us to get the value of the Vector on the Z-axis.

```void Start() {<br> Vector3 newVektor = new Vector3 (3, 4, 5);<br> Debug.Log("Vector length: " + newVektor.magnitude);<br> Debug.Log("Vector normalized: " + newVektor.normalized);<br> Debug.Log ("Vector length squared: " + newVektor.sqrMagnitude);<br> Debug.Log ("Vector values with index : x=" + newVektor + " y=" + newVektor + " z=" + newVektor);<br> Debug.Log("Vector x value: " + newVektor.x);<br> Debug.Log("Vector y value: " + newVektor.y);<br> Debug.Log("Vector z value: " + newVektor.z);<br> }<br> ;```

### Unity Vector3 Public Methods

• Angle (): allows us to get the angle between the two given vector variables in the float type. The maximum value that this angle can take will be 180 degrees.
• ClampMagnitude (): creates a copy of the Vector variable based on the given length, keeping the direction the same, and this copy returns the value vector3 to us. In this way, we can maintain the direction and obtain a shorter vector size.
• Cross (): allows us to get a vector named cross product of the given two vectors, which is perpendicular to these two vectors. The order of variables is important, the result that will be obtained when their order changes will be in the opposite direction.
• Distance (): allows us to obtain the distance between two given Vector3 variables.
• dot (): this is a function that returns a number obtained by multiplying the size of the vectors by the cosine of the angle between them, which we can also use to understand whether two vectors are facing in the same direction.
• Lerp (): the lerp function is a function that also occurs in different mathematical variables, which allows us to get a value based on a certain ratio in two values. For example, with this function, we can move an object within the start and endpoints.
• LerpUnclamped (): lerpunclamped works similarly, only the relative value it can take can be greater than 1 or less than 0. In this way, we can go beyond the second variable.
• Max (): taking the largest values from the X,y,z components of the two vectors we give, creates a new Vector3 variable for us.
• Min (): taking the smallest values from the X,y,z components of the two vectors we V er creates a new Vector3 variable for us.
• movetowards (): this is the function where we give the start and endpoints and get us to move from start to finish step by step. It allows us to achieve a smoother and controlled movement.
• Normalize (): changes the components x,y,z so that the vector variable has a length of 1 unit. it changes on this variable, as opposed to the normalized property.
• OrthoNormalize (): normalizes the given vectors and makes them perpendicular to each other.
• Project (): allows us to get a projection of a vector onto another vector. We can also think of this as getting the shadow of an object falling to the ground.
• ProjectOnPlane (): works in the form of Project, it takes a normal vector value instead of just a second vector. It is normal, then is the vector that is exactly perpendicular to a surface.
• Reflect (): a Vector3 variable is a function that achieves its reflection using a normal axis in the form of a reflection that any identical object has in a mirror.
• RotateTowards (): allows us to switch from one vector to another in a smooth and controlled format, as in the same MoveTowards function.
• Scale (): allows us to multiply a variable of Type 2 Vector3. Here, the multiplication process is within each other of the components x,y,z.

#### How to create a Vector3?

```Vector3(float x, float y, float z); //It is in the format.<br> Vector3 new_vektor = new Vector3(0.5f , 2.7f , 3.6f);```

So we looked at what Vector3 is and the methods and variables that we can use with this variable type. Thank you for reading the article. For other Unity topics that might interest you, you can check it out right here: Unity 3D

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