Introduction to Unity game engine and platform. Authors: * Vaclav Vancura (@vancura) * Michal Hotovec (@mhotovec) Presented on 1st Indie Games Czech meetup in Prague on October 18, 2011. More info on the meetup on @indiegamescz.

1. Unity: Introduction
Václav Vančura – @vancura Michal Hotovec – @mhotovec
saymedia.com falanxia.com

2. What The Unity?
‣ Games
Mainly 3D (with acceleration),
but 2D as well
‣ Apps
Augmented Reality apps
Medical apps
Architectural visualizations

3. Platforms
‣ Desktop
Windows, OS X
‣ Game consoles
Playstation, Nintendo Wii, Xbox
‣ Mobile devices
iOS, Android, Union
‣ Web

4. What Unity Does?

5. Workflow
‣ Project structure
‣ Drag & Drop
Visual programming
‣ Browsers
Textures, objects, sounds, scripts, animation clips etc...
‣ Snapping

6. Importing 3D Assets
‣ Import without a 3rd party app
FBX, OBJ, 3DS, Collada DAE
‣ When a native app is needed
Maya, Blender, Modo, Cinema 4D,
3D Studio Max, Cheetah 3D

7. Automatic File
Change Detection
‣ 3D objects including textures,
bones, animations and UV
Watches for file changes
and automatically updates assets

8. Texture Import
‣ Formats
JPEG, PNG, GIF, BMP, TGA, IFF, PICT... and PSD
‣ Video & video textures
Camera texture
Ogg Theora
MOV, AVI, ASF, MPG, MPEG, MP4VIDEO transcoded
‣ Automatic generation
Mip-Map, Height Map to Normal Map,
Bitmap to Bump Map
PVRTC

9. Audio Import
‣ Live preview
‣ 2D & 3D audio
Sound sources & listeners
One sound listener attached to scene camera
Multiple sound sources
Environment settings
Room settings
Doppler effect
Filters – DSP effects
High-pass / low-pass, distortion, chorus / echo / reverb

10. Audio Formats
‣ Music
MP3 & Ogg Vorbis (depending on platform)
‣ Sounds
AIFF, WAV
‣ Trackers
FMOD library
MOD, IT, S3M, XM
‣ Streaming
Ogg Theora & Ogg Vorbis streaming from network

11. Font Import
‣ TrueType
‣ 3rd party scripts
‣ Font sheets

12. Editors
‣ MonoDevelop
‣ Microsoft Visual Studio
‣ TextMate
‣ any other editor

13. MonoDevelop (OS X / Windows)

14. Microsoft Visual C# (Windows)

15. TextMate (OS X)

16. Unitron (OS X)

17. Components & OOP
JavaScript
‣ Languages C#
C#
JavaScript
Boo
‣ Scripts as components Boo
‣ Prefabs
‣ Rich API

18. Visual Scripting
Useful for designers and not so nerdy programmers

19. Kismet / uScript

20. Play / Pause
‣ Debugging & Profiling
Instant launch, recompilation in background
‣ No need to recompile
Changes visible immediately
‣ Debugging and Profiling
Unity
MonoDevelop
Xcode

21. Unity Remote
‣ Realtime preview
‣ Mobile device features transferred to Unity
Multitouch
Accelerometer / gyroscope
‣ Lower FPS and visual quality

22. Asset Server
‣ Team cooperation, shared assets
‣ Versioning
‣ Needs a free server,
but a separate client license
Linux, Windows, OS X
‣ Can be installed locally

23. Asset server

24. Conflict diffing in FileMerge

25. Surface Shaders
‣ A lot of Shaders both built-in
and on Asset Server
‣ Do your own shaders
‣ Mobile shaders

27. Fullscreen Postprocessing
Filters
‣ Most interesting filters
Bloom + Lens Flare, DOF, Sun Shafts, Color Correction,
Glow, SSAO, Motion Blur, Noise, Twirl, Vortex
‣ Hardware consumption
‣ Not supported on mobile devices

28. Physics
‣ NVIDIA PhysX
GPU hardware accelerated
‣ Rigidbodies
Physical materials
Triggers
‣ Colliders & collisions
Box, Mesh, Sphere, RayCasting, Wheel colliders...

29. Physics
‣ Joints
‣ Softbodies
‣ Cloth simulation

30. Animation
‣ Animation editor
‣ Animation clips
‣ Bones, IK
‣ Animation & Pose blending

31. Animation
‣ Biped editor
‣ Mixamo

32. Respect the Platform
‣ Optimization
Mobile hardware
Fill rate
RAM
Drawcalls
‣ Batching
Dynamic batching
Static batching
‣ Game budget

33. Lightmapping — Beast (before)

34. Lightmapping — Beast (after)

35. Batching & Caching
‣ Occlusion Culling & Penumbra
‣ Light-mapping / Beast
‣ Terrains
Now on mobile devices
Tree Creator

36. Asset Store
‣ Buy 3rd assets
3D Models
Characters, environments, vehicles, vegetation...
Textures
Shaders, bricks, fabric, metal, nature, paper, roads, wood...
Audio
Music, sound FX, ambient sounds...
Example projects
Tutorials, templates, demos, games...

37. Asset Store
‣ Buy 3rd assets
Editor extensions
Animation, audio, modeling, painting, utilities...
Scripting
AI, GUI, network, effects, physics...
Particle systems
‣ Build and sell your own
and be rich :]

38. Future: Unity 3.5
‣ HDR rendering with gamma correction
‣ Native level-of-detail support
‣ Shuriken
A completely curve driven particle effects system
‣ Integrated GPU profiler
‣ Pathfinding and crowd simulation built in
‣ Integrated version control support for
Perforce and SVN

39. Flash Stage3D
Export

40. Thank you.
Václav Vančura – @vancura Michal Hotovec – @mhotovec
saymedia.com falanxia.com