> For the complete documentation index, see [llms.txt](https://vc-docs.gitbook.io/engine/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vc-docs.gitbook.io/engine/home/doxygen_synced/classes/class_vector3.md).
# Vector3
**Usage:** `api.Vector3.Add(a, b)`
Exposes unity [Vector3](/engine/home/doxygen_synced/classes/class_vector3.md) math operations to the JavaScript API layer.
## Public Functions
| | Name |
| ------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| UnityEngine.Vector3 | Minus(UnityEngine.Vector3 l, UnityEngine.Vector3 r)
Subtracts vector r from vector l .
|
| UnityEngine.Vector3 | Add(UnityEngine.Vector3 l, UnityEngine.Vector3 r)
Adds two vectors component-wise.
|
| UnityEngine.Vector3 | Multiply(UnityEngine.Vector3 l, float num)
Scales a vector uniformly by a scalar value.
|
| UnityEngine.Vector3 | Multiply(float num, UnityEngine.Vector3 r)
Scales a vector uniformly by a scalar value.
|
| UnityEngine.Vector3 | Multiply(UnityEngine.Vector3 l, UnityEngine.Vector3 r)
Scales a vector component-wise by another vector. Each component of l is multiplied by the corresponding component of r .
|
| UnityEngine.Vector3 | Multiply(UnityEngine.Quaternion quaternion, UnityEngine.Vector3 vector)
Rotates a vector by a quaternion.
|
| UnityEngine.Vector3 | Lerp(UnityEngine.Vector3 start, UnityEngine.Vector3 target, float time)
Linearly interpolates between two vectors by a normalized factor.
|
| UnityEngine.Vector3 | MoveTowards(UnityEngine.Vector3 start, UnityEngine.Vector3 target, float distance)
Moves a vector towards a target at a constant maximum step distance per call.
|
## Public Properties
| | Name |
| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| UnityEngine.Vector3 | zero
A vector with all components set to zero (0, 0, 0).
|
## Public Functions Documentation
### function Minus
```csharp
static UnityEngine.Vector3 Minus(
UnityEngine.Vector3 l,
UnityEngine.Vector3 r
)
```
Subtracts vector *r* from vector *l* .
**Parameters**:
* **l** The left-hand vector.
* **r** The vector to subtract.
**Return**: The result of *l* - *r* .
### function Add
```csharp
static UnityEngine.Vector3 Add(
UnityEngine.Vector3 l,
UnityEngine.Vector3 r
)
```
Adds two vectors component-wise.
**Parameters**:
* **l** The left-hand vector.
* **r** The right-hand vector.
**Return**: The result of *l* + *r* .
### function Multiply
```csharp
static UnityEngine.Vector3 Multiply(
UnityEngine.Vector3 l,
float num
)
```
Scales a vector uniformly by a scalar value.
**Parameters**:
* **l** The vector to scale.
* **num** The scalar multiplier.
**Return**: The result of *l* \* *num* .
### function Multiply
```csharp
static UnityEngine.Vector3 Multiply(
float num,
UnityEngine.Vector3 r
)
```
Scales a vector uniformly by a scalar value.
**Parameters**:
* **num** The scalar multiplier.
* **r** The vector to scale.
**Return**: The result of *num* \* *r* .
### function Multiply
```csharp
static UnityEngine.Vector3 Multiply(
UnityEngine.Vector3 l,
UnityEngine.Vector3 r
)
```
Scales a vector component-wise by another vector. Each component of *l* is multiplied by the corresponding component of *r* .
**Parameters**:
* **l** The vector to scale.
* **r** The vector to scale by.
**Return**: The component-wise product of *l* and *r* .
### function Multiply
```csharp
static UnityEngine.Vector3 Multiply(
UnityEngine.Quaternion quaternion,
UnityEngine.Vector3 vector
)
```
Rotates a vector by a quaternion.
**Parameters**:
* **quaternion** The rotation to apply.
* **vector** The vector to rotate.
**Return**: The rotated vector.
### function Lerp
```csharp
static UnityEngine.Vector3 Lerp(
UnityEngine.Vector3 start,
UnityEngine.Vector3 target,
float time
)
```
Linearly interpolates between two vectors by a normalized factor.
**Parameters**:
* **start** The starting vector when *time* is 0.
* **target** The target vector when *time* is 1.
* **time** Interpolation factor, clamped to the range \[0, 1].
**Return**: The interpolated vector.
### function MoveTowards
```csharp
static UnityEngine.Vector3 MoveTowards(
UnityEngine.Vector3 start,
UnityEngine.Vector3 target,
float distance
)
```
Moves a vector towards a target at a constant maximum step distance per call.
**Parameters**:
* **start** The current position.
* **target** The position to move towards.
* **distance** The maximum distance to move in a single step.
**Return**: The new position, at most *distance* units closer to *target* .
## Public Property Documentation
### property zero
```csharp
static UnityEngine.Vector3 zero;
```
A vector with all components set to zero (0, 0, 0).
***
Updated on 2026-07-22 at 12:00:00 +0800