QUAKE ENGINES SOFTWARE
QUAKE ENGINES CODE

To build the qs8 dos port, I first downloaded build 46 from qbism's SVN repository and the DJGPP development environment from rugxulo ( DJGPP203.7z). In dosbox, qs8 will run best with the following command lines: It may be necessary to run dosbox with memory set to 63mb.

QUAKE ENGINES SOFTWARE

These two projects are important to developing the software renderer of a 3d game engine, especially since they run in dosbox, a dos emulator for games which runs on a large number of computing systems. Qs8 employs a different lighting model than engoo, as discussed by leilei: 'qbism uses intensity/hue lookup, incidentally the resulting lightmap looks similar to PowerVR PCX2 running Quake2'. For use in dosbox or a low powered DOS system, then qbism's static lighting model should perform reasonably well. In both ports, qs8 and engoo, this feature has been a difficult task, a balance between game stability, performance, and realism of the lighting model. The dynamic colored lighting is not easily supported by the DOS memory model, so this is a great achievement. In particular, the DOS based version of engoo ( v228) includes texture filtering and (dynamic) colored lighting. There is collaboration among leilei and qbism, so these two projects share some features, in others they diverge. These are the two current, major projects for development of the software renderer of Q1. I didn't test the music playback additions nor the networking capabilities, since this focus is on single player and the ability to play the original Q1 campaign or to load custom mods/maps.Įngoo is the other DOS based Q1 engine with an enhanced software renderer. In this DOS version, qbism's enhanced software renderer includes features beyond static colored lighting by use of lit formatted files, including a limited capability to load large custom maps, special effects such as translucent particles and transparent water, support for better skymaps, and enhancements for playback of music.

QUAKE ENGINES CODE

After setting up a development environment to build qbism's engine, I made modifications to source code and makefile, including a few minor fixes. However, qbism's SVN repository has incremental changes between these two builds, and changes after #53, which allowed the backporting of code to Build 46 which is known to build a DOS binary. Of particular interest is the colored lighting model which was introduced in Build 53. This announcement is related to the DOS port developed by Qbism, particularly to Build 46 of his Super8 game engine ( qs8 screenshots) and subsequent builds toward his Windows port. Qbism further developed and enhanced the software renderer of the Quake 1 (Q1) engine, the core of a game released by ID Software in 1996.

Quake engines