This document discusses game engines and their components. A game engine is the core software that powers games and interactive applications. It provides underlying technologies like graphics rendering, physics simulation, sound, scripting, animation, artificial intelligence, and networking. Popular game engines include Unreal Engine, CryEngine, Unity, and Gamebryo. Game engines aim to simplify development and allow games to run on multiple platforms by providing tools and technologies that developers would otherwise have to program themselves.

1. GAME DEVELOPEMENT

2. Presented by
OWAIS AHMAD
&
UMAIR KHAN

3.  What is a game engine?
 A game engine is the core software component of a computer or video game or
other
 interactive application with real-time graphics.
 The term “game engine” was coined in the mid-1990s due to the development
first
 person shooters such as Doom, Wolfenstein 3D...
GAME ENGINES

4. Purpose of creating games:
 Fun, creative
 Raising the bar
 Virtual worlds & immersion, rules
 Real-time
 Programming
 Visual Art
 Audio
 Management, marketing

5. Game engine: main goals
Provide for underlying technologies
 Graphics Rendering
 Physics engine
 Sound
 Scripting
 Animation
 Artificial Intelligence
 Networking
 Simplify development process
 Run on multiple platforms

6. Rendering
• Lighting/Material, Shadowing.
• Scene Management (indoor/outdoor).
• Camera Control.
• Animation (objects, character, facial).
• Special Effects (particles, lens flare, etc).
• Workflow Tools (e.g. exporting 3D
models from 3D Studio Max, Maya)

7. Physics
 Handles the simulation of the world
 Collisions.
 Terrain changes.
 Waves in the sea.
 Explosions.
 Object destruction.
 Physics is more and more integrated into
 the gameplay and game subsystems.
 Physics-based animation.
 Interaction with objects using physics.

8. Physics
 Traditional games have little use of physics simulation
 Collision Detection (preventing penetration among objects and
environment)
 Physics become more important in game development recently
 Physics simulation add realism to games
 Famous Products
 Havok ,Novedex
 Open Dynamics Engine

10. Sound and Video
2D Sound, 3D Sound, Streaming Sound:
 Fully spatialized 3D sound effects.
 Unlimited streaming music channels with seamless looping and concatenation.
 Doppler shift and other frequency effects.
 High-precision sound travel delay.
 Atmospheric absorption effects.
 Reverberation with multiple simultaneous environments.
 Directional sounds with cone attenuation.
 Obstruction attenuation applied to direct and reflected paths.
 Frequency-dependent volume settings for all effects.
 Permeation system determines how far sounds travel through interiors.
 Apple's QuickTime technology can be used to play movies or soundtracks. from
 numerous formats.

11. Scripting
 Adds custom behavior

12. Scripting
 Easy control of many (or all) features in the
game engine
 Scripting language often provides full OO
control (like Lua).
 Promotes data-driven design.
 Common scripting languages:
Python, Lua, GameMonkey, and AngelScript

13. Artificial Intelligence
 Artificial Intelligence (AI) adds behavior to Non-Playable
Characters (NPCs)
 Behavior can be low- or high-level
 Low-level behavior such as finding a path from current position to
target is vital to games
 High-level behavior such as decision making adds realism to
human (or human-like) NPCs

14. Networking
Client-Server:
 Fast, reliable network implementation using UDP/IP
 Solid fault tolerance and hacker resistance
 Advanced security measures, including packet encryption
 Automatic message distribution to entity controllers

15. POPULAR GAME ENGINE
 Unreal Engine 3
 Gamebryo Lightspeed
 CryEngine 3
 Unity 3D
 BlitzTech
 Infernal Engine
 Vision Engine 7.5
 Bigworld Technology Suite
 Vicious Engine 2
 Torque 3D

16. NEED FOR A GAME DEVELOPER
 Your average game engine provides developers with a way to add things
like:
 Physics.
 Input.
 Rendering.
 Scripting.
 collision detection.
 artificial intelligence and more without the need to program them