3D Engines List Source & Span-Buffer This list contains 12 span-buffer rendering engines with source code.

12.04.2000 Blitz Engine

05.10.1998

The Blitz Engine is a Windows rendering engine from Richard Turnbull ( rt71@hotmail.com ).

• Perspective, lightmapped texture mapping
• Sub-pixel and Sub-texel accuracy
• Coloured Lighting and dynamic shadowing with filtering
• Improved dynamic lighting - via span level RGB interpolation
• Span level MIP-mapping
• Multitexturing using OpenGLs ARB_multitexture extensions
• Surface cacheing at span or surface level
• Level of Detail bezier curved surfaces
• Texture mapping system for wrapping around curves and creating a smooth edge look as seen in Quake 3
• Translucent surfaces with upto 20 simultaneous layers
• Reflective surfaces
• Environment Mapped Bump Mapping (Matrox G400)
• Animated textures
• Collision detection including with curves
• Span and Z-Buffering
• Binary Space Partitioning Tree creation and traversal
• Direct Draw and Direct Input Support
• Point based particle rendering
• Shaded, colored smoke particles
• Spherical and standard volumetric fog
• Coronas and Lensflares on lights
• B-Spline movement system
• Hierarchial objects
• Portal rendering combined with BSP Tree
• Support for OpenGL and Direct3D
• Console system
• 32 bit MMX optimized span level RGB interpolative rasterizer with span level mip mapping.
• Network support
• Written in Visual C++ 4 and the Netwide assembler (NASM)

More information, screenshots and a demo, SDK 1.2 and source can be found on the Blitz Engine Homepage .

22.12.1999 Twister

28.09.1999

Twister is a "Quake-style" 3D engine for Windows by Stefano Lanza ( steflanz@tin.it ).

• Lightmapped, perspective texture mapping
• BSP rendering
• Multiple cameras
• Mirrors
• Particle systems
• Quake II .bsp support
• Quake II model support
• S-buffer rendering
• Dynamic colored lightmaps
• Volumetric fog
• Support for Quake 2 models
• Direct3D acceleration
• Console
• Visual C++ 5.0 source

More information, screenshots, demo and source can be found on the Twister Homepage.

22.12.1999 Golgatha

17.11.1998

Golgatha is a 3D game engine from Crack dot Com. Crack dot Com left business and decided to release the source of their game that has been in development for more than 2 years.

• Perspective gouraud shaded texture mapping
• Texture filtering
• Landscape rendering
• Using a single portable rendering API, support for 3dfx's Glide, partial support for Microsoft's Direct3d, software rendering using Span Buffering, and very partial OpenGl support
• DirectSound, Direct 3d sound, Aureal 3d sound, and partial Linux sound support.
• Support for Win95, Win98, and WinNT and Linux
• Plugin for 3D Studio Max for geometry im/export
• Game editor
• Portable TCP networking code, supporting UDP and TCP
• A LISP interpreter with threaded garbage collection
• Portable GUI system, with a window manager, support for dialog boxes, buttons, browse trees, pull down menu, context menus, scroll bars, sliders, dividers, list boxes, text input, status indicators, and context sensitive help
• Image loaders & savers for Jpeg, FLI, PCX, TGA, BMP
• Image histograms & quantization
• Sound loaders for WAV and MP3
• Hand crafted assembly language optimizations for pentiums, and k6-3d
• C/ASM source.

More information, screenshots and the complete sources (even game data, music and textures) can be found on the Golgatha Homepage .

10.03.1999 Fluxions

10.03.1999

Fluxions is a 3D engine for PCs by Jonathan Metzgar ( microwerx@fcmail.com ).

• Perspective lightmapped texture mapping
• Bi-linear texture-mapping with perspective-correction every 8-16 pixels
• Portal rendering
• Span-buffer hidden surface removal
• 3D sprites (triangle mesh) with Z-Buffering
• C++/ASM source developed with DJGPP and Allegro.

More information, screenshots and the source can be found via the Microwerx Game Programming Homepage .

25.02.1999 Poly Engine

27.09.1996

The PE is a PC 3D Quake-like game engine from Alexey Goloshubin ( alexey@ii.uib.no).

• Full object support.
• Collision-detection
• Physics system
• Movable bsp models
• Client-server networking (IPX, null-modem)
• 3D Sound.
• VFX1 head-tracking
• BSP/ZBuffer rendering
• Polygonal objects
• Sprites
• Support for Quake II maps and models.
• Particle systems.
• Software renderer
  • Supports any resolution
  • Span buffer
  • Perspective tex-mapping (16-pix subdivision)
  • Mip-mapping
  • Surface caching (light maps)
  • Dynamic lights
• Hardware renderer
  • Support for OpenGL.
  • DirectX port.
  • Colored lightmaps
  • Colored dynamic lights

More information and the source is available via the Homepage of Alexey Goloshubin .

09.02.1999 Focus

27.10.1998

Focus is a simple 3D engine for Windows that is intended as a experimental engine for testing various new techniques from Jacco Bikker ( Jacco.Bikker@HTA.nl ) aka 'The Phantom'.

• Perspective correct (real) bilinear filtered texture mapping
• Tileable 8bit textures (with a palette per texture)
• Sub-pixel, sub-texel accuracy
• MIP-mapping
• Fast tree-based S-buffer rendering and Z-Buffer rendering.
• Curved surfaces
• 32/16/15bit output in a window (5/5/5 and 5/6/5 schemes)
• Light volume based illumination model.
• Lens flares.
• Bump-mapping.
• Real-time shadows.
• Portal rendering.
• Hierarchical objects.
• Supports 16bpp output using the MGL or PCT library.
• Edge anti-aliasing
• Scene smoothing
• Plane clipping: Z=0 or frustum clipping
• Clipping against arbitrary convex 2D region
• Support for Caligary Truespace file
• Import of Targa 24bit image files
• Support for PCT library
• Quake-like console
• C source, critical code in ASM (but C version can be used as toggle)

More information, screenshots, binaries and the souce can be found on the Phantom Cyberspace 3D Homepage .

05.05.1998 Arfnold

05.05.1998

Arfnold is a 3D engine for PCs by Andrei Fortuna ( andreif@mail.dntis.ro ) aka 'Stormbringer'.

• Unshaded, perspective texture mapping.
• Subtexel/subpixel accuracy.
• MIP-mapping.
• A basic surface cache (no lightning for now, but there is in old versions).
• Conversion of Quake .mdl files.
• BSP/PVS capabilities.
• Edge span-buffer and z-buffer rendering.
• Collision detection.
• Moving platforms.
• 3D objects.
• Particle system.
• Uses Allegro Game library.
• C/C++/ASM source.

More information, a demo and the source can be found on Stormbringer's Homepage.

16.06.1997 Nanotech

27.09.1996

NT is a PC 3D game engine from Sean Lane Fuller (fuller@cafes.net).

• Perspective flatshaded texturemapping.
• Uses Span-buffer algorithm to ensure proper drawing order with no overdraw.
• SVGA support.
• Sound and music support.
• Build-in level editor.
• C / ASM source.
• Some documentation about scanline rendering.

The Natotech platform game, 3d tutorial and source code is available on the Nanotech Homepage.

06.06.1997 World Of Fantasy

30.12.1996

WOF is a Quake viewer for PCs by Frank Willemsen (frankw@xs4all.nl) and Corin Langosch ( corinl@metronet.de ).

• Perspective texture mapping with MIP-mapping.
• Portal rendering.
• BSP rendering.
• Z-buffer and span-buffer.
• Light-maps and Surface cache.
• Realtime lightning effects (like flicker) and dynamic lighting (for fireballs).
• SVGA support.
• Improved collision detection.
• Polygonal objects.
• Moving doors and elevators.
• Multiple viewports.
• Water effect a la Quake.
• Support for Quake level files.
• C/C++ source.

More information, a demo and screenshots can be found on the WOF Homepage, the source of an older version is available on the old World Of Fantasy Homepage.

26.05.1999 DJDOOM

26.05.1999

DJDOOM is a DOOM level viewer from Kais Dukes of Majestic-12 Games (majestictwelve@postmaster.co.uk).

• Perspective correct texture mapped walls
• Depth cueing
• Non-orthogonal, variable height walls
• Higher graphics resolutions (up to 1024 x 768)
• Direct reading of textures and maps from WAD files
• DOOM BSP-tree rendering, using a span-buffe
• Flat shaded floors and ceilings
• Quake-style console and Mouse-look
• DJGPP/Allegro source code

The full source code, screenshots and executables can be found on the Majestic-12 Games website.

22.07.1997 Boxes

22.07.1997

Boxes is a PC 3D rendering engine from David Farrell ( fdavid@utdallas.edu ).

• Flat shading.
• 3D clipping.
• Moving light source.
• Span-buffer rendering.
• Support for 3D Studio object files.
• SVGA support.
• C++ / ASM source.

More information, screenshots and the source can be found on the Homepage of David Farrell .

17.07.1996 DDJ: ZSort

16.07.1996

ZS is a sample system to render 3-D scenes with a span-buffer as discussed in the May/June -- July/August 1996 issues of "Dr. Dobb's Sourcebook" from Michael Abrash (mikeab@idsoftware.com).

• Windows output.
• Span-buffer rendering with zsorted insertion.
• Single coloured polygons.
• Uses own display buffer that is copied into a window, easy to expand to texture mapping.
• C / C++ source.

The source can be found on ftp.idsoftware.com. There is also a DOS port to DJGPP Allegro at the Michael Abrash porting page. More information can be found on the Quake Hidden Surface Removal webpage.