Coco 3 texture mapping demo

This demo shows texture mapping done on a Color Computer 3 with 128KB of ram, running at 1.79 MHz. It loops on a pre-defined path. It is mostly perspective correct (I had to cut a bit on quality for performance / size limit). It features full screen, 16 color, floor, ceiling and walls, with distance shading / simple mip-mapping. It runs at about 6 frames per second.
The DSK can be downloaded here to test on an emulator or a real Coco 3:
http://www.coco3.com/community/wp-content/uploads/2012/01/REM_TEXTURE_DEMO.zip
My homepage: http://sites.google.com/site/rveilleux/coco3home

Category:

Gaming

Tags:

• coco
• demo
• tandy
• doom
• 3d
• texture mapping
• 8-bit
• trs-80
• color computer
• maze
• wolf
• gloom
• Game

[iimustang]

Just out of curiosity... how much speed would you gain if you just texture mapped the walls (and not the ceiling/floor - ala Castle Wolfenstein 3D)?

[remtube]

@iimustang I just tried, without ceiling and floor and also removing the wait for vertical sync, it gains about 52% speed. The average becomes 7.3 frames/second.

[atarileaf]

Very impressive tech demo. Its still amazing what our little coco can do :)

[Petrander]

You never cease to amaze us!

[cc6809]

Love it!

[linvjw]

Truly amazing! You must really "know your stuff"!

[Greenstang02]

Calvaire! je suis très impressionné. De plus la vitesse est très acceptable, pour un processeur de 1.79 mhz, c'est quelque chose.

[lwispe]

Ça nous prend un port de Doom maintenant! :P