DOCSLIB.ORG

Lab 3 Particle Systems

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Lab 3 Particle Systems 1/14/2013 Course Materials . Course webpage: 01 - Introduction . http://www.scss.tcd.ie/John.Dingliana/cs7057 CS7057 – Real-time Physics • Lecture Slides • Labs • Readings from the course . Submission and feedback will be handled through Blackboard system . http://mymodule.tcd.ie Background images taken from layoutsparks.com and used without permission. http://images2.layoutsparks.com/1/162592/abstract-bright-dark-flashing.jpg (17/09/2012) Relevant References Learning Outcomes . Baraff, Witkin and Kass “Physically based Animation Course Notes” – . On Completion of this course, Students should be able to: Siggraph 2001 Most of the Labs are based on these notes . http://www.pixar.com/companyinfo/research/pbm2001/ . Outline and describe the architecture and components of a physics- based motion pipeline that would be employed in a typical game. Mueller, James, Theurey, Stam “Real-time Physics” – Siggraph 2008 . http://www.matthiasmueller.info/realtimephysics/index.html . Explain basic rigid body dynamics and the mechanics of deformable systems. Ian Millington – “Game Physics Engine Development” . Analyze and compare different approaches for collision detection and collision response of rigid and deformable objects. Kenny Erleben - “Physics based animation” . Build a real-time rigid body simulation system for convex polyhedra. David H.Eberley“Game Physics Engine Development” Assessment Physically Based Modelling Cs7057 Final . 100% based on coursework Mark [100%] . A form of Procedural Modelling . ~55% Labs . Synthesize motions of inanimate . ~40% Final Assignment Labs Final Project Readings [~5%] objects due to external forces [~60%] [~40%] . ~5% Prescribed Reading . Motivations: . Lab assessment: Cumulative . Realism / plausibility Weekly Mark . Weekly demos ~80% Submission [~80% of labs] . Final Cumulative submission ~20% [~20% of labs] . Automation Youtube Video . Interaction Approx. 4 page written report Source code . Details of Final Project and Readings will be provided later in the term . IMPORTANT NOTE: All work is expected to be done individually, . where other help or sources are used these should be duly referenced. Students are expected to familiarise themselves with and abide by college’s regulations on plagiarism Jenga App © 2010, NaturalMotion Image From: http://appadvice.com/appnn/2010/12/review-jenga/ 1 1/14/2013 Application Areas State of the Art (commercial) . LucasArts’ Star Wars – The Force Unleashed [2008] featured 3 different state-of-the art technologies in Physics in industry . Havok Physics : for gameplay rigid body dynamics physics . NaturalMotion Euphoria for physically responsive non-player character behaviour . Pixelux DMM for deformable and destructable effects physics Tech Trailer: http://www.gametrailers.com/video/unleashing-the-star-wars/29964 Digital Molecular Matter (DMM) Some Physics Engines http://www.pixelux.com/DMMengine.html State of the Art (Research) Incompressible Solids [Irving et al 2007] There is a vast amount of research literature in Physically Based Animation that deals with highly complex effects that is not yet fully exploited in commercial applications Deformable Objects © Ron Fedkiw Fluid Animaton © Cem Yuksel Character Physics ©Michael Neff physbam.stanford.edu/~fedkiw/papers/stanford2007-01.pdf 2 1/14/2013 Types of Animation Procedural Animation Animation is encoded in a set of rules. Mathematical models are employed to define motions i.e. Anything not explicitly Discussed in Procedural physically Real-time Animation based e.g. Animation or splines Autonomous Agents Physically- Ad-hoc Behavioural based Procedural Animation Animation Animation Particle Deformable Rigid Bodies Fluids Systems Objects Predator animation is © Adriano Rinaldi [http://web.tiscali.it/maya_tutorial/] Physically Based Animation Dynamic Simulation Kinematics: describes motion without considering forces that cause it . Rules of physics used to calculate Forward Inverse motion Kinematics: Kinematics: given . Take into account... given positions, orientations, find find orientations positions . Forces Friction Gravity Inverse Forward Buoyancy Dynamics: given Dynamics: given the start and end the start Elasticity points (i.e. the conditions and motion), what forces, calculate . Collisions / spatial occupancy are the forces the motion Most relevant for interactive apps Dynamics: describe motion taking into account mass and forces Motivations Game Physics . Why use Physically based models? . Relatively small number of basic concepts are re-used for most game physics: . Inherits advantages from procedural modelling . Newton’s laws of motion . Non-linear experiences: unlimited possibilities from relatively small amount of manual content creation . Stress and Strain: deformable models . Non-deterministic . Navier Stokes equation: fluids . Extends with real-world physical constraints . Major challenge is in finding numerical solutions that are sufficiently complex and sufficiently generalizable . Relatively well defined (even mathematically) Discrete representations exist – can encode this in programs Finite set of rules and parameters . Plausible (hopefully) 3 1/14/2013 Classes of Game Physics Effects Physics Effects Physics Gameplay Physics • Live Secondary Animations • Fully interactive • One-way Interaction • Affects the user • e.g. Particle effects, cloth Pre-computed Physics Off-line Physics • Canned Physics • e.g. Cinematics / • Secondary Animations e.g. cutscenes Cloth, water, some • Pre-calculated character animations Game • Pre-rendered Physics Havok FX Demo © 2005 Havok Gameplay Physics In-game Physics Efficiency: Plausibility: • on-the-fly real-time • not necessarily computation accurate or real, but convincing Fidelity: Robustness: • model reasonably • run unsupervised complex phenomena over many frames to make it without exploding worthwhile Basic Animation Loop Basic Physics Loop 4 1/14/2013 Basic Physics Loop (2) Physics State Variables and Constants Apply forces and m v update state of Position Mass object based on Velocity Acceleration / Forces p forces F Orientation Moments of Inertia Spatial Centre of Mass Occupancy Angular Velocity Torque M v Plasticity Elasticity p Density Viscosity F Opacity Texture Apply collision Check if objects forces/impulses are intersecting Friction ... Collision Detection Collision Detection Sphere-sphere Sphere-plane Polygon-polygon Triangle-Triangle A diverse problem (lots of special cases) but not extremely difficult to solve Collision Detection and Intersection testing e.g. Lots of Intersection Source Code Available Here: http://www.geometrictools.com/LibFoundation/Intersection/Intersection.html check if an object intersects another – a common operation in computer graphics Problem: Complexity Collision Proxies Halflife, 1998 Counterstrike (Mod), 1999 ... sometimes they do (right) Current graphical data sets are generally more detailed Possible solution: Use simplified e.g. Hit boxes commonly used in games than we wish to deal with for collision detection. representation. (Even this is generally approximate the actual mesh. overkill for game physics) 5 1/14/2013 Collision Proxies Dynamics Havok Example: Proxies • All physics objects are approximations of display meshes. • Finer Rag-doll collision proxy for character used in effects physics interactions with objects in scene. • A much coarser bounding ellipsoid proxy used for navigation (yellow blob below) Images © Havok 2007 Two Phase Collision Detection Bounding Volumes Use a coarse over approximation of the object i.e. A bounding volume (conservative overestimate) that is geometrically much simpler than the object. Only do more detailed Quite often no amount of simplification is enough – scenes require more and more intersection tests if bounding volume intersects. objects, users more demanding of accuracy. Solution: cull some trivial cases (how we do this will be discussed in more detail later in the module) Narrow phase •Per-object : coarse culling of non-colliding cases •Pair-wise between objects •Per-feature •Narrow-in on collision – calculate finer features e.g. collision manifold, penetration depth Broad phase Image used without permission from Real-time Collision Detection – by Christer Ericson Bounding Volume Hierarchies Collision Response . Hierarchical, multi-resolution representations of objects. Once objects are found to be colliding collision process applies forces/impulses . Enables Progressive Culling: to stop them intersecting to create plausible physically based reactions. Starting at root, only check children if this collides . Repeat until we get to finest level then do triangle checks . Key Concerns in Interactive Physics: . Robustness: response must assure system remains stable in all possible states . Plausibility: response to collision must be believable . Efficiency: physics processing must be fast enough to enable real-time frame rates Levels of an AABB Resting Impulses Constraints Friction Tree Hierarchy contact 6 1/14/2013 Deformable Objects Fluids Cloth Soft Bodies Hair Fracture Images © Ron Fedkiw (http://physbam.stanford.edu/~fedkiw/) Images © Ron Fedkiw (http://physbam.stanford.edu/~fedkiw/) Tentative Lecture Plan Planned Assessment MONDAY THURSDAY . Weekly Labs 1 INTRODUCTION PARTICLE SYSTEMS RIGID-BODIES 1. Particle Systems ~9% 2 LAB: RIGID BODIES COLLISION DETECTION 2. Rigid-body Animation: ~9% 3 LAB: BROAD PHASE COLLISION DETECTION COLLISION DETECTION 2 3. Broad-phase Collision Detection: ~9% 4 LAB: NARROW PHASE COLLISION DETECTION COLLISION RESPONSE 4. Narrow-phase Collision Detection: ~9% 5 LAB: COLLISION RESPONSE BOUNDING VOLUME HIERARCHIES 5. Collision Response: ~9% 6 LAB (COLLISION RESPONSE MARKING) PHYSICS ENGINES . Cumulative Lab Submission ~10% READING WEEK [27 FEB – 02 MAR] . Rigid body engine & particle system 8 LAB: FINAL PROJECT PROPOSALS MULTI-COLLISIONS • Youtube Video 9 DEFORMABLE OBJECTS CLOTH SOFT BODIES • Report 10 ST. PATRICK’S DAY BANK HOLIDAY [18 MAR] LAB: INTERMEDIATE PROGRESS • Source code (for the record: not marked based on this) 11 FLUIDS DESTRUCTION/FRACTURE CHARACTER PHYSICS . Final Project: ~40% 12 EASTER MONDAY [1 APR] FINAL ASSIGNMENT PRESENTATIONS . Readings: ~5% 7 .
Load more

Recommended publications
  • Agx Multiphysics Download
    Agx multiphysics download click here to download A patch release of AgX Dynamics is now available for download for all of our licensed customers. This version include some minor. AGX Dynamics is a professional multi-purpose physics engine for simulators, Virtual parallel high performance hybrid equation solvers and novel multi- physics models. Why choose AGX Dynamics? Download AGX product brochure. This video shows a simulation of a wheel loader interacting with a dynamic tree model. High fidelity. AGX Multiphysics is a proprietary real-time physics engine developed by Algoryx Simulation AB Create a book · Download as PDF · Printable version. AgX Multiphysics Toolkit · Age Of Empires III The Asian Dynasties Expansion. Convert trail version Free Download, product key, keygen, Activator com extended. free full download agx multiphysics toolkit from AYS search www.doorway.ru have many downloads related to agx multiphysics toolkit which are hosted on sites like. With AGXUnity, it is possible to incorporate a real physics engine into a well Download from the prebuilt-packages sub-directory in the repository www.doorway.rug: multiphysics. A www.doorway.ru app that runs a physics engine and lets clients download physics data in real Clone or download AgX Multiphysics compiled with Lua support. Agx multiphysics toolkit. Developed physics the was made dynamics multiphysics simulation. Runtime library for AgX MultiPhysics Library. How to repair file. Original file to replace broken file www.doorway.ru Download. Current version: Some short videos that may help starting with AGX-III. Example 1: Finding a possible Pareto front for the Balaban Index in the Missing: multiphysics.
    [Show full text]
  • Procedural Destruction of Objects for Computer Games
    Procedural Destruction of Objects for Computer Games PUBLIC VERSION THESIS submitted in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE in MEDIA AND KNOWLEDGE ENGINEERING by Joris van Gestel born in Zevenhuizen, the Netherlands Computer Graphics and CAD/CAM Group Cannibal Game Studios Department of Mediamatics Molengraaffsingel 12-14 Faculty of EEMCS, Delft University of Technology 2629 JD Delft Delft, the Netherlands The Netherlands www.ewi.tudelft.nl www.cannibalgamestudios.com Author: Joris van Gestel Student id: 1099825 Email: j.vangestel@cannibalgamestudios.com Date: May 10, 2011 © 2011 Cannibal Game Studios. All Rights Reserved i Summary Traditional content creation for computer games is a costly process. In particular, current techniques for authoring destructible behaviour are labour intensive and often limited to a single object basis. We aim to create an intuitive approach which allows designers to visually define destructible behaviour for objects in a reusable manner, which can then be applied in real-time. First we present a short introduction into the way that destruction has been done in games for many years. To better understand the physical processes that are being replicated, we present some information on how destruction works in the real world, and the high level approaches that have developed to simulate these processes. Using criteria gathered from industry professionals, we survey previous research work and determine their usability in a game development context. The approach which suits these criteria best is then selected as the basis for the approach presented in this work. By examining commercial solutions the shortcomings of existing technologies are determined to establish a solution direction.
    [Show full text]
  • Maya 2012 Create Breathtaking 3D
    ® ® Autodesk Maya 2012 Create Breathtaking 3D. Create innovative digital entertainment with Autodesk Maya 2012, an end-to-end solution for CG production at an exceptional value. I really like all the positive steps taken in Maya 2012. With the high-fidelity viewport, enhancements to Nucleus, and the overall performance improvements, Maya has become more flexible, powerful and modern. Black Swan. Image courtesy of Look FX. © Fox Searchlight Pictures. — Peter Shipkov Technical Director Modernize your pipeline and compete more effectively of the multi-threaded NVIDIA® PhysX® engine* to Digital Domain with Autodesk® Maya® 2012 modeling, animation, create rigid-body simulations directly in the Maya visual effects, rendering, and compositing software. viewport—and if you use PhysX in your game engine, Whether you work in film, games, television, or you’ll be matching the runtime solution. The new Digital advertising, publishing, and graphic design production, Molecular Matter plug-in from Pixelux Entertainment™ Maya 2012 offers state-of-the-art toolsets, combined enables you to create highly-realistic shattering into a single affordable offering. simulations with multiple interacting materials. Meanwhile, further development of the Nucleus New Toolsets for Previsualization and unified simulation framework and its associated Games Prototyping modules means that convincing pouring, splashing, Today’s challenging productions demand modern and boiling liquid effects are easier to achieve. toolsets that enable you to make interactive decisions in-context. Maya 2012 delivers new and enhanced Better Pipeline Integration features to help you create more compelling New single-step interoperability between Maya 2012, previsualizations and games prototypes, or experiment Autodesk® MotionBuilder® 2012 software, and the and iterate more easily on your animations.
    [Show full text]
  • Luminosity | a Re-Imagining of Twilight | by Alicorn
    Luminosity by Alicorn You don't have to make a hundred mistakes for everything to disintegrate around you. One will do. One wrong risk, one misplaced trust, one careless guess is enough to destroy the one thing you can least afford to lose. But I'd never had any reason to imagine that my disaster would befall me at the time when I was most unexpectedly safe. pg. 1 1. Forks 2. The Cullens 3. The Reveal 4. Matchmaking 5. Vampires 101 6. Edward 7. Souls 8. The Future 9. Witches and Werewolves 10. Coven 11. Volterra 12. Norway 13. Newborn 14. Self-Control 15. Honeymoon 16. Ambition 17. Rachel 18. Clearwater 19. Denali 20. Europe 21. Hybrid 22. Maggie 23. Sue 24. Delivery 25. Expectations 26. Little Witch 27. Scatter 28. Ashes 29. Things Left Behind pg. 2 Forks Here is how I decided to live with my father in Washington. My favorite three questions are, What do I want?, What do I have?, and How can I best use the latter to get the former? Actually, I'm also fond of What kind of person am I?, but that one isn't often directly relevant to decision making on a day-to-day basis. What did I want? I wanted my mother, Renée, to be happy. She was the most important person to me, bar none. I also wanted her around, but when I honestly evaluated my priorities, it was more important that she be happy. If, implausibly, I had to choose between Renée being happy on Mars, and Renée being miserable living with me as she always had - I wouldn't be thrilled about it.
    [Show full text]
  • Jak Videohry Vyprávějí Příběhy Analýza Aktuálních Klíčových Videoher Hlavního Proudu
    Masarykova univerzita Filozofická fakulta Ústav hudební vědy Teorie interaktivních médií Bc. Jaroslav Kolář Magisterská diplomová práce Jak videohry vyprávějí příběhy Analýza aktuálních klíčových videoher hlavního proudu Vedoucí práce: Mgr. Zuzana Husárová, Ph.D. 2013 1 2 Čestné prohlášení Prohlašuji, že jsem práci vypracoval samostatně. Všechny prameny a literaturu, které jsem při vypracování používal, v práci řádně uvádím. V Brně, 4. ledna 2013 3 Narativní potenciál videoher byl na konci 20. století podceňován nebo zcela přehlížen. Vzhledem k rychlému vývoji na poli videoher je nutné přezkoumat aktuální situaci. Objektem této práce jsou klíčové videohry hlavního proudu vydané mezi lety 2010-2012. Podrobným vnímáním ludické a narativní podstaty vybraných videoher hledá tato práce odpověď na otázku „Jakým způsobem videohry vyprávějí příběhy?“ a to z perspektivy nahlížení na příběhy jako na transmediální fenomény. 4 První kapitola – Úvod ............................................................................................................................. 7 Cíl této práce ....................................................................................................................................... 9 Jak budu postupovat ............................................................................................................................ 9 Druhá kapitola – Uvedení do problematiky .......................................................................................... 10 Sjednocení důležitých pojmů ...........................................................................................................
    [Show full text]
  • The Search for the "Manchurian Candidate" the Cia and Mind Control
    THE SEARCH FOR THE "MANCHURIAN CANDIDATE" THE CIA AND MIND CONTROL John Marks Allen Lane Allen Lane Penguin Books Ltd 17 Grosvenor Gardens London SW1 OBD First published in the U.S.A. by Times Books, a division of Quadrangle/The New York Times Book Co., Inc., and simultaneously in Canada by Fitzhenry & Whiteside Ltd, 1979 First published in Great Britain by Allen Lane 1979 Copyright <£> John Marks, 1979 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owner ISBN 07139 12790 jj Printed in Great Britain by f Thomson Litho Ltd, East Kilbride, Scotland J For Barbara and Daniel AUTHOR'S NOTE This book has grown out of the 16,000 pages of documents that the CIA released to me under the Freedom of Information Act. Without these documents, the best investigative reporting in the world could not have produced a book, and the secrets of CIA mind-control work would have remained buried forever, as the men who knew them had always intended. From the documentary base, I was able to expand my knowledge through interviews and readings in the behavioral sciences. Neverthe- less, the final result is not the whole story of the CIA's attack on the mind. Only a few insiders could have written that, and they choose to remain silent. I have done the best I can to make the book as accurate as possible, but I have been hampered by the refusal of most of the principal characters to be interviewed and by the CIA's destruction in 1973 of many of the key docu- ments.
    [Show full text]
  • Physics Simulation Game Engine Benchmark Student: Marek Papinčák Supervisor: Doc
    ASSIGNMENT OF BACHELOR’S THESIS Title: Physics Simulation Game Engine Benchmark Student: Marek Papinčák Supervisor: doc. Ing. Jiří Bittner, Ph.D. Study Programme: Informatics Study Branch: Web and Software Engineering Department: Department of Software Engineering Validity: Until the end of summer semester 2018/19 Instructions Review the existing tools and methods used for physics simulation in contemporary game engines. In the review, cover also the existing benchmarks created for evaluation of physics simulation performance. Identify parts of physics simulation with the highest computational overhead. Design at least three test scenarios that will allow to evaluate the dependence of the simulation on carefully selected parameters (e.g. number of colliding objects, number of simulated projectiles). Implement the designed simulation scenarios within Unity game engine and conduct a series of measurements that will analyze the behavior of the physics simulation. Finally, create a simple game that will make use of the tested scenarios. References [1] Jason Gregory. Game Engine Architecture, 2nd edition. CRC Press, 2014. [2] Ian Millington. Game Physics Engine Development, 2nd edition. CRC Press, 2010. [3] Unity User Manual. Unity Technologies, 2017. Available at https://docs.unity3d.com/Manual/index.html [4] Antonín Šmíd. Comparison of the Unity and Unreal Engines. Bachelor Thesis, CTU FEE, 2017. Ing. Michal Valenta, Ph.D. doc. RNDr. Ing. Marcel Jiřina, Ph.D. Head of Department Dean Prague February 8, 2018 Bachelor’s thesis Physics Simulation Game Engine Benchmark Marek Papinˇc´ak Department of Software Engineering Supervisor: doc. Ing. Jiˇr´ıBittner, Ph.D. May 15, 2018 Acknowledgements I am thankful to Jiri Bittner, an associate professor at the Department of Computer Graphics and Interaction, for sharing his expertise and helping me with this thesis.
    [Show full text]
  • Locotest: Deploying and Evaluating Physics-Based Locomotion on Multiple Simulation Platforms
    LocoTest: Deploying and Evaluating Physics-based Locomotion on Multiple Simulation Platforms Stevie Giovanni and KangKang Yin National University of Singapore fstevie,kkying@comp.nus.edu.sg Abstract. In the pursuit of pushing active character control into games, we have deployed a generalized physics-based locomotion control scheme to multiple simulation platforms, including ODE, PhysX, Bullet, and Vortex. We first overview the main characteristics of these physics engines. Then we illustrate the major steps of integrating active character controllers with physics SDKs, together with necessary implementation details. We also evaluate and compare the performance of the locomotion control on different simulation platforms. Note that our work only represents an initial attempt at doing such evaluation, and additional refine- ment of the methodology and results can still be expected. We release our code online to encourage more follow-up works, as well as more interactions between the research community and the game development community. Keywords: physics-based animation, simulation, locomotion, motion control 1 Introduction Developing biped locomotion controllers has been a long-time research interest in the Robotics community [3]. In the Computer Animation community, Hodgins and her col- leagues [12, 7] started the many efforts on locomotion control of simulated characters. Among these efforts, the simplest class of locomotion control methods employs re- altime feedback laws for robust balance recovery [12, 7, 14, 9, 4]. Optimization-based control methods, on the other hand, are more mathematically involved, but can incor- porate more motion objectives automatically [10, 8]. Recently, data-driven approaches have become quite common, where motion capture trajectories are referenced to further improve the naturalness of simulated motions [14, 10, 9].
    [Show full text]
  • Physics Engine Design and Implementation Physics Engine • a Component of the Game Engine
    Physics engine design and implementation Physics Engine • A component of the game engine. • Separates reusable features and specific game logic. • basically software components (physics, graphics, input, network, etc.) • Handles the simulation of the world • physical behavior, collisions, terrain changes, ragdoll and active characters, explosions, object breaking and destruction, liquids and soft bodies, ... Game Physics 2 Physics engine • Example SDKs: – Open Source • Bullet, Open Dynamics Engine (ODE), Tokamak, Newton Game Dynamics, PhysBam, Box2D – Closed source • Havok Physics • Nvidia PhysX PhysX (Mafia II) ODE (Call of Juarez) Havok (Diablo 3) Game Physics 3 Case study: Bullet • Bullet Physics Library is an open source game physics engine. • http://bulletphysics.org • open source under ZLib license. • Provides collision detection, soft body and rigid body solvers. • Used by many movie and game companies in AAA titles on PC, consoles and mobile devices. • A modular extendible C++ design. • Used for the practical assignment. • User manual and numerous demos (e.g. CCD Physics, Collision and SoftBody Demo). Game Physics 4 Features • Bullet Collision Detection can be used on its own as a separate SDK without Bullet Dynamics • Discrete and continuous collision detection. • Swept collision queries. • Generic convex support (using GJK), capsule, cylinder, cone, sphere, box and non-convex triangle meshes. • Support for dynamic deformation of nonconvex triangle meshes. • Multi-physics Library includes: • Rigid-body dynamics including constraint solvers. • Support for constraint limits and motors. • Soft-body support including cloth and rope. Game Physics 5 Design • The main components are organized as follows Soft Body Dynamics Bullet Multi Threaded Extras: Maya Plugin, Rigid Body Dynamics etc. Collision Detection Linear Math, Memory, Containers Game Physics 6 Overview • High level simulation manager: btDiscreteDynamicsWorld or btSoftRigidDynamicsWorld.
    [Show full text]
  • Physics Application Programming Interface
    PHI: Physics Application Programming Interface Bing Tang, Zhigeng Pan, ZuoYan Lin, Le Zheng State Key Lab of CAD&CG, Zhejiang University, Hang Zhou, China, 310027 {btang, zgpan, linzouyan, zhengle}@cad.zju.edu.cn Abstract. In this paper, we propose to design an easy to use physics applica- tion programming interface (PHI) with support for pluggable physics library. The goal is to create physically realistic 3D graphics environments and inte- grate real-time physics simulation into games seamlessly with advanced fea- tures, such as interactive character simulation and vehicle dynamics. The actual implementation of the simulation was designed to be independent, interchange- able and separated from the user interface of the API. We demonstrate the util- ity of the middleware by simulating versatile vehicle dynamics and generating quality reactive human motions. 1 Introduction Each year games become more realistic visually. Current generation graphics cards can produce amazing high-quality visual effects. But visual realism is only half the battle. Physical realism is another half [1]. The impressive capabilities of the latest generation of video game hardware have raised our expectations of not only how digital characters look, but also they behavior [2]. As the speed of the video game hardware increases and the algorithms get refined, physics is expected to play a more prominent role in video games. The long-awaited Half-life 2 impressed the players deeply for the amazing Havok physics engine[3]. The incredible physics engine of the game makes the whole game world believable and natural. Items thrown across a room will hit other objects, which will then react in a very convincing way.
    [Show full text]
  • Mbk-Game Engine Lecture
    Game Tools MARY BETH KERY - ADVANCED USER INTERFACES SPRING 2017 2 person team 3 years ART 300 person team GAME DESIGN 10 years ENGINEERING Final Fantasy 15 PRODUCTION/BUSINESS TECHNICAL CHALLENGES OF VIDEO GAMES 1. Video games are real time complex simulations, and must be efficient. TECHNICAL CHALLENGES OF VIDEO GAMES 1. Video games are real time complex simulations, and must be efficient. 1999 Roller Coaster Tycoon written by one guy in x86 assembly language TECHNICAL CHALLENGES OF VIDEO GAMES 1. Video games are real time complex simulations, and must be efficient. Today, more flexibility in language Typically Object-Oriented Use development tools like Visual Studio or Eclipse TECHNICAL CHALLENGES OF VIDEO GAMES 2. People have high expectations for interactive worlds with lots of content TECHNICAL CHALLENGES OF VIDEO GAMES 2. People have high expectations for interactive worlds with lots of content Lots of content on tight deadlines. Glitches and crashes are BAD. TECHNICAL CHALLENGES OF VIDEO GAMES 3. Real time 3D graphics simulations Doom 1993 Levels, dungeons, and rooms were not only for game pacing, but to limit the number of objects to compute and render at a time. TECHNICAL CHALLENGES OF VIDEO GAMES 3. Real time 3D graphics simulations 2016 graphics Pixar - Piper Final Fantasy 15 Gregory, Jason. Game engine architecture. CRC Press, 2009. Game Engines Tools that fit the pieces together Game Engine GAME ENGINES: HISTORY 1990s First-person shooters: Doom by id Software GAME ENGINES: HISTORY Architecture separates core software from game- specific assets ASSETS “ENGINE” SOFTWARE Art assets 3D graphics rendering Game Collision detection map/environments Audio system Rules of play GAME ENGINES: HISTORY 1990’s Separation of game engine allowed “mods” by replacing assets ASSETS “ENGINE” SOFTWARE Art assets 3D graphics rendering Game Collision detection map/environments Audio system Rules of play Not okay mod.
    [Show full text]
  • Chapter 9 Animation System
    Chapter 10 Collision and Rigid Body Dynamics asyrani.com 10.1 Do You Want Physics in Your Game? Things You Can Do with a Physics System A LOT Is Physics Fun? Simulations (Sims) Gran Turismo Flight Simulator Need For Speed Physics Puzzle Games Bridge Builder Fantastic Contraption Crayon Physics The Incredible Machine Sandbox Games LittleBigPlanet GTA 5 Spore Goal-Based and Story-Driven Games A goal-based game has rules and specific objectives that the player must accomplish in order to progress; in a story-driven game , telling a story is of paramount importance. Integrating a physics system into these kinds of games can be tricky. We generally give away control in exchange for a realistic simulation, and this loss of control can inhibit the player’s ability to accomplish goals or the game’s ability to tell the story. Impact of Physics on a Game Predictability Tuning and control Emergent behaviors Engineering Impacts Collision Tools pipeline User interface detection Animation Rag doll AI and character physics motion Networking Record and Graphics and playback multiplayer Art Impacts Additional tool More-complex and workflow content complexity Loss of control Other Impacts Interdisciplinary impacts. The introduction of a dynamics simulation into your game requires close cooperation between engineering, art, and design. Production impacts. Physics can add to a project’s development costs, technical and organizational complexity, and risk. 10.2 Collision/Physics Middleware I-Collide SWIFT V-Collide RAPID ODE ODE stands for “Open Dynamics Engine ” (http://www.ode.org). As its name implies, ODE is an open-source collision and rigid body dynamics SDK.
    [Show full text]