LTM DOS

at the core of the LTM project lies a highly optimized innerloop for drawing gouraud-shaded texture-mapped polygons. supported by some simple, yet very fast perspective projection functions and an assembly .gif-reading function, it made a nice start for an engine.

LTM was later used in odipheus, the base engine for a never-to-be game called modified.

TECH

core written in assembly. making optimal use of the pentiums parallel processing capabilities.
- for a great read on optimizing code for the Pentium™ I highly recommend "How to optimize for the Pentium™ microprocessors" by Agner Fog. This excellent work was of great help with all the optimizations within the LTM code.

gouraud shaded. a lookup table with a ramp for every color in the 8bit paletized textures was generated on startup.

transparency mask. using binary operations, branch mispredictions are avoided completely.

ODIPHEUS

odipheus was to be a crawler type engine, not unlike the engine used for Bullfrog's excellent Dungeon Keeper, which was released just a couple of months later.

Sadly due to limited time schedules and people emigrating, the odipheus project was discontinued.

YEAR

1997

LTM DOS LINKS

link	description
agner.org	Agner Fog's Software optimalization resources