1. Game Development Intro to Unreal Engine
Yingcai Xiao

2. Unreral Game Engine Engine (https://www.unrealengine.com)
Open Source (complete source code)
IDE (Blueprint, C++)
Documentation
Tutorials
Examples
Discussion Forums
Educational Use (free)

3. Installation Register an account https://www.unrealengine.com/register
Download the dashboard (1GB)
Start the Dashboard, then go to Library, +Add Engine, Subscribe
Download the engine (3GB)
Dashboard, Library, Engines, Download.
(Can be downloaded on multiple computers with one account.)

4. Basic Game Engine Components
Rendering
Collision detection AI
Visibility
Networking
Scripting
File system management

5. Supporting rendering/graphics engines
Microsoft DirectX
for Microsoft Windows, Xbox One, Windows RT
OpenGL
for OS X, Linux, PlayStation 4, iOS, Android, and Windows XP
JavaScript/WebGL
for HTML5 Web browsers

6. UE4 Shaders/GPU Android Blueprint visual scripting
Tim Sweeney, Epic Games, Started in 2003
Released in 2014
Shaders/GPU
Android
Blueprint
visual scripting
Kismet in UE3 and UnrealScript in UE2/1

7. Basic interface (Unreal4)

8. Blue prints
Visual scripting
Nodes
Events
Functions
Variables

9. Blue print types Level (each level can have one) Class (game objects)
Prefabs
Pawns (player charactors)
HUD (heads-up display, status bar)

10. Blueprint Tutorial A third person game FBX (Autodesk 3D model files)
Skeletons (animation joints/bones)
Have to use the same skeleton or skeletons with the same hierarchy to share animation.

11. Import FBX (Built-in Unreal4)
Create a “Character” directory in the Content Browser
Drag HeroTPP from the unzipped FBX.zip to file pan.
Import.
Double click on the HeroTPP in the file pan.
In the skeleton editing mode, select the Mesh tab.

12. Import Animation
Create an “Animation” directory under “Character” directory in the Content Browser
Drag all the animation files from the unzipped FBX.zip to the file pan.
Select the HeroTPP skeleton in the import dialog. file pan.
Import All.
Ctrol+S often to save everthing.

13. Persona Animation editor in UE4 Filter animation files
Click on the idle animation file.
Persona will start.
use skeleton tree to control each part of body

14. Persona - Mesh
Mesh tab gives you more details on the mesh than the Skeleton tab.
Mesh allow you to morph (change the shape of) a mesh.

15. Persona - Animation Click on the animation pane (next to Mesh)
You can add notification to trigger a secondary animation.
You can add a surve to change a property (variable), say, face color.

16. Input Edit->Project Setting->Engine->Input
Action Mapping: key up/down operations
Axis Mapping: continuous operations
Axis +, Move Forward
+ to add key F – Scale 1.0
+ to add key B – Scale -1.0
+ to add key Up – Scale 1.0
+ to add key Down – Scale -1.0
Export to be added into product .ini file.

17. Material Content Browser->Starer Content->Material
Double click on it
Go to Material Editor

18. Material Editor Right click in the material editor pan.
Select a desired color.
Create another parameter (scalar) and name it metallic.
Change its value in “Details” to 0.2
“Save”

19. Use Materials Go to Content Browser Right click on Character_Parent
Create Material Instance
Name it Charactor_Inst
Double click on it to edit the instance.

20. Use Material Go to Content Browser double click on HeroTPP
Persona will be up.
Drag the Character_inst from Content Browser to Mesh Details
The color of the character will change after compilation.

21. Blend Space
Construct more complicate animations: blend multiple animations.
Graph of variables (e.g. speed, direction)
Click on “Animation” folder in the Content Browser
In the files pan, righ click
Animation->Blend Space 1D
Select the HeroTPP skeleton
Name it Idle_walk_run

22. Blend Space
In the asset browser of the Persona, selecton idle_walk_run.
Change X Axis Paramters:
Name: speed
Range: 0, 368
Division: 4
Apply

23. Blend Space
Drag the animations from Asset Browser of Persona to blend animations
Idle to Speed 0
Walk to the middle
Run to Speed 368