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Similar to VR In Action - Creating a VR Pool Game with Unity, Oculus and VRTK
Similar to VR In Action - Creating a VR Pool Game with Unity, Oculus and VRTK (20)
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VR In Action - Creating a VR Pool Game with Unity, Oculus and VRTK
- 1. VR in Action VR Landscape + Making a VR Pool game with Unity, Oculus and VRTK NIALL MCLOUGHLIN @NEILLNIALL 1 Newry Software Meetup
- 2. Agenda • WHAT IS VIRTUAL REALITY? • HISTORY • DEVICES • APPLICATIONS • FIRST STEPS IN VR • WHAT SKILLS ARE BENEFICIAL? • DEVELOPMENT OPTIONS • UNITY OVERVIEW • OCULUS / VRTK • VR POOL DESIGN Niall McLoughlin 2
- 3. What is Virtual Reality? VIRTUAL REALITY (VR) IS THE USE OF COMPUTER TECHNOLOGY TO CREATE A DIGITALLY GENERATED SIMULATED ENVIRONMENT. UNLIKE TRADITIONAL USER INTERFACES, VR PLACES THE USER INSIDE AN EXPERIENCE. INSTEAD OF VIEWING A SCREEN IN FRONT OF THEM, USERS ARE IMMERSED AND ABLE TO INTERACT WITH 3D WORLDS. 3
- 5. VR Landmarks 1962 - Sensorama 1968 UHD – Ivan Sutherland 1990 - Virtual Environment Workstation - NASA 1991/92 - Arcade VR 1991 - Sega VR 91 / Nintendo Virtual Boy Randy Pausch – Building Virtual Worlds at Carnegie Mellon 2012 - Oculus Rift Kickstarter Niall McLoughlin 5
- 6. VR Buzz 6 https://www.statista.com/topics/2532/virtual-reality-vr/ VR Hardware and Software Market estimated to be worth $40.4bn by 2020 37 Million Units by 2020 Games account for 48% of VR market in 2018
- 7. VR Devices • OCULUS RIFT • PLAYSTATION VR • GEAR VR • HTC VIVE • MICROSOFT MIXED REALITY Niall McLoughlin 7
- 8. What next for VR hardware? • SMALLER • WIRELESS • LIGHTER • MORE COMFORTABLE • BETTER INPUT DEVICES • INSIDE OUT TRACKING • EYE TRACKING Niall McLoughlin 8
- 9. What makes VR different? • 3D SPACE • IMMERSIVE • REALISM • TACTILE • SOCIAL (ANTI?) • EXPLORATION • UNIQUE EXPERIENCES 9
- 11. Non Gaming Applications Niall McLoughlin 11 DESIGN – Native 3D SOCiAL EXPERIENCES CINEMA HEALTHCARE •Training and Treatment EDUCATION SPORTS TRAINING – US SKI TEAM ARCHITECTURE MARKETING TRAVEL SHOPPING DATA ANALYTICS CHARITY
- 12. Google Blocks 12
- 13. Popular VR Games 13 • SUPERHOT VR • JOB SIMULATOR • RESIDENT EVIL 7 • SPORTS BAR VR • ELEVEN – TABLE TENNIS VR • LUCKY’S TALE
- 14. Sprint Vector 14
- 15. First Steps in VR Development.. 15
- 16. New medium – Different Concerns • Motion Sickness - Acceleration without frame of reference can cause body to interpret this as poisoning Physiological • Immersive experiences can cause enhanced reactions – so upsetting scenes may be more impactful in VR Psychological • Surrounding space could present dangers • Cables get tangled Environmental Niall McLoughlin 16
- 17. Important Skills • 3D MODELLING • UNITY / UNREAL • C# • PHYSICS • MATHS • SAFE VR DESIGN • DESIGN PATTERNS • ALGORITHM OPTIMIZATION 17
- 18. Development Options Game Engine Unity vs Unreal SDK Steam VR SDK vs Oculus SDK VR Libraries VRTK vs Newton VR Niall McLoughlin 18
- 19. Unity Basics Niall McLoughlin 19 Game Object Nestable Primitives e.g. cube, sphere Transform Position Rotation Rigidbody Velocity Quaternion Colliders Renderer Textures Materials UI Canvas Buttons / Text / Sliders / InputText etc Classes MonoBehaviour / ScriptableObject / C# Class
- 20. VRTK Radial Menus Quickly setup menus attached to controllers Complex Object Mechanics 1 and 2 hand Guns / Crossbows Levers / Dials Teleporting 20
- 21. VR Pool 21
- 22. VR Pool - Goals Have something to demo in Newry! 1 Gain experience with VRTK API 2 Contrast VRTK vs Oculus SDK 3 Develop a working pool simulation 4 Niall McLoughlin 22
- 23. Design Considerations for VR Pool •Teleporting added initially to try to solve that problem •Design evolved to rotate table to minimize need for teleporting •Room remains in place to keep frame of reference Minimize locomotion •Without a surface to lean targeting during cueing was difficult – so trigger locks the cue movement to only one axis.Realistic Cueing Action •Physics materials trialled to give more realistic collisions between balls, cue and cushionsDependable Collisions Niall McLoughlin 23
- 24. What’s in the box? Environment Pool Table 3D Model Unity Texturing – room, balls Mechanics VRTK Two Hand Grab Mechanic VRTK Teleport Oculus SDK Input Events – cueing / rotate table VRTK Radial Menu – reset cue / reset game Pool Game Logic EventManager Finite State Machine = reuse of Unity Animator 24
- 25. Unity Demo 25
- 27. VRTK Setup VRTK_SDK Manager Abstracts SteamVR / Oculus SDKs VRTK Controller Scripts Interact Touch Interact Grab Proxy VRTK Pointer + Renderer Radial Menu Object (Cue) Scripts 27
- 29. Game Logic • Decouples GameObject when there may be a variable number of dependent objects EventManager / FSM Yellow/Red/Black Deposit • Cue Ball Respawn • Wrong ball potted • No ball touched • Ball off table • Two different balls potted Foul Detection Score Manager Niall McLoughlin 29
- 30. Leveraging FSM from Unity Animator 30 Pool game rules implemented as part of a Unity Animator Finite State Machine. Important game events emitted as events that GameManager sets as triggers/parameters in the FSM. States can only transition if triggers/parameters are set Example valid path: Cue > White > Red> Potted Red Example foul path: Cue > White > Red > Yellow StateMachineBehaviour subclasses associated to states in some cases Loose coupling vs Unity prefab relationships
- 32. Example Script for Rotate Table This came as a necessity really to reduce need for moving around the scene with teleport – even with teleport the orientation of the player can be confusing 32
- 33. Evolution Primitive Shapes – Cue/ Balls VRTK Examples Analysis • Grab Mechanic Trialled • Radial Menu • Teleporting Pool Table Model Oculus API used for finer control of cueing mechanic Physics Testing • More Physics Testing Event System Scoreboard Respawning Foul Detection Niall McLoughlin 33
- 34. First Draft 34
- 36. Taking a Shot 36
- 37. Next Steps Improved physics Improved collisions Multiplayer Single Player opponent AI Niall McLoughlin 37
- 38. Summary Enjoyable proof of concept that has helped gain familiarity with VRTK VRTK makes it quite easy to implement a number of common VR features VRTK enables deployment to various storefronts by abstracting the SDK Fall back on traditional design/programming techniques to solve problems Unity is used for 50% of mobile games and many consoles – so the added bonus that it is heavily investing in VR helps to re-use skills for many platforms Developing directly alongside the VR headset is important but desk gets a bit cluttered! Niall McLoughlin 38
- 39. Thanks for having me @neillniall Niall McLoughlin 39
Editor's Notes
- https://www.digitalpulse.pwc.com.au/infographic-history-virtual-reality/