Fly3D SDK Guide

1
Fly3D SDK Guide

• Jaeho Kim
• VR Lab. KAIST

2
Contents

• Introduction to Fly3D
• Engine Design
• Software Architecture
• Plug-ins
• Conclusions

3
Introduction to Fly3D

• A Game engine all written in C
• OpenGL 1.1 as the 3D API
• DirectInput for mouse and Keyboard
• DirectSound for 3D sounds
• DirectPlay for multiplayer
• All you need to do to create a new game is
  building new plug-ins

4
Introduction to Fly3D

• What is included
• flyFrontend, flyEditor, flyLight, flyPVS
• Plugins with source code
• menu, car, gamelib, lights, panorama, ship,
  viewport, volfog, bezobj, weapon
• Utilities
• flypak, expflybsp, impflybsp, q2flybsp,q2md2fly,q3
  flybsp, and so on
• Demos

5
Engine Design

• Is based on BSP(Binary Space Partitioning)
  technology
• Example Games
• 1st person shooter game
• Car racing and pursuit game
• 3D strategy game

6
Engine Design

• Developing Game
• Building the environment or level using a
  modeling utility or editor
• Writing plug-ins to define different behaviors,
  both visual and dynamic for the game objects
• Refer given plug-ins with source code

7
Fly3D SDK Demo
8
Software Architecture

• The classes defined in the Fly3D.dll
• vector, mat4x4
• boudbox,plane,vertex,face
• local_system,sound,base_object
• mesh,anim_mesh,stripfan_mesh
• bezier_curve,bezier_path,particle
• bsp_node,bsp_object,static_mesh
• light_map,light_map_pic,light_vertex
• class_desc,flydll,flydllgroup,directX,picture,cons
  ole,flyEngine
• flyEngine flyengine

9
Plug-ins

• DLL files that defines new classes derived from
  the bsp_object class
• bsp_object class is derived from particle.
• Given plug-ins
• gamelib, lights, bezobj, volfog, panorama,
  viewport, subdivsurf, cartoon, weapon, menu,
  ship, walk, car

10
Plug-ins

• bsp_object virtual functions
• virtual void init()
• virtual int step(int dt)
• virtual bsp_object clone()
• virtual mesh get_mesh()
• virtual mesh ray_intersect()
• virtual int get_custom_param_desc()
• virtual int message()

11
Plug-ins

• Camera and Scene Drawing
• flyengine-gtset_camera(camobj)
• flyengine-gtdraw_bsp()
• Text Output
• flyengine?start_text_mode()
• char str64
• sprintf(str,FPSi Ni,flyengine?fame_rate,
  flyengine?nodedrawcount)
• flyengine?draw_text(0,0,str)
• flyengine?end_text_mode()

12
Plug-ins

• Rendering API
• void my_objectdraw()
• glPushMatrix()
• glTranslatef(pos.x, pos.y, pos.z)
• glBlendFunc(GL_ONE, GL_ONE)
• my_mesh?draw()
• glBlendFunc(GL_SRC_ALPHA,
• GL_ONE_MINUS_SRC_ALPHA)
• glPopMatrix()

13
Conclusion

• http//www.fly3d.com.br
• Install the SDK in your computer, then execute
  modify given demos.
• Project Assignment 1 will be given after some
  days.