U3D转UE4指南

矫情吗；* 2022-08-20 05:06 247阅读 0赞

**原文地址：**[Unity3D转UE4指南][Unity3D_UE4] **作者：**[尹俊旭Siri][Siri]

# U3D转UE4指南 #

坐标：

###### Unity3D ######

*  X - left, right
 *  Y - up, down
 *  Z - forwards, backwards

###### Unreal Engine4 ######

*  X - forwards, backwards
 *  Y - left, right
 *  Z - up, down

UE4 also referrers to the pivots of a rotation as: Pitch, Roll, and Yaw.

游戏对象

Unity3D：GameObject

UE4：Actor

场景与关卡：

Unity3D：Scenes

UE4：(.umap)

基本数据类型：

Unity3D Unreal Engine4

<table style="margin:13px 0px; padding:0px; line-height:19px; border-collapse:collapse; border-spacing:0px; border:1px solid rgb(170,170,170); word-break:normal; background-color:rgb(249,249,249)"> 
 <tbody style="margin:13px 0px; padding:0px"> 
 <tr style="margin:13px 0px; padding:0px"> 
 <th align="center" style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; border:1px solid rgb(170,170,170); border-collapse:collapse; background-color:rgb(242,242,242)"> Unity3D</th> 
 <th align="center" style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; border:1px solid rgb(170,170,170); border-collapse:collapse; background-color:rgb(242,242,242)"> Unreal Engine4</th> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> int</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> int32, int24, int8</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> string</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> FString</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Transform</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> FTransform</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Quaternion</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> FQuat</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Rotation</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> FRotator</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Gameobject</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Actor</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Array</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> TArray</td> 
 </tr> 
 </tbody> 
</table>

#### Instantiate and Spawning ####

###### Unity3D ######

Instantiate()

###### Unreal Engine4 ######

UWorld->SpawnActor()

UWorld::SpawnActor() may only be used for creating instances of classes which inherit from the Actor class in their hierarchy.

#### 成员函数和数据 ####

<table style="margin:13px 0px; padding:0px; line-height:19px; border-collapse:collapse; border-spacing:0px; border:1px solid rgb(170,170,170); word-break:normal; background-color:rgb(249,249,249)"> 
 <tbody style="margin:13px 0px; padding:0px"> 
 <tr style="margin:13px 0px; padding:0px"> 
 <th align="center" style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; border:1px solid rgb(170,170,170); border-collapse:collapse; background-color:rgb(242,242,242)"> Unity3D</th> 
 <th align="center" style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; border:1px solid rgb(170,170,170); border-collapse:collapse; background-color:rgb(242,242,242)"> Unreal Engine4</th> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Update()</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Tick()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> transform</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> GetActorTranform(), GetFocalLocation()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> transform.position</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> GetActorTranform().GetLocation()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> transform.roation</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> GetActorTranform().GetRotation()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> transform.localScale</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> GetActorTranform().GetScaled3D()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Destroy()</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Destroy()</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Find()</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> TObjectIterator(), FActorIterator</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> MathF</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> FMath</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> RayCast</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Trace</td> 
 </tr> 
 <tr style="margin:13px 0px; padding:0px"> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> SphereCast</td> 
 <td style="margin:0px; padding:2px; font-family:Verdana,宋体,sans-serif; line-height:18px; border:1px solid rgb(170,170,170); border-collapse:collapse"> Sweep</td> 
 </tr> 
 </tbody> 
</table>

[Unity3D_UE4]: http://blog.sina.com.cn/s/blog_7c5fd2e90101l28t.html
[Siri]: http://blog.sina.com.cn/u/2086654697