Terrain rendering algorithm in less than 20 lines of code (github.com)

Article summary

The article discusses a terrain rendering algorithm used in the 1992 game Comanche, which achieves 3D-like graphics using a 2.5D engine. The algorithm uses a height map and color map to render the terrain, and is surprisingly simple, with the core algorithm consisting of only a few lines of code. The article also explores optimizations and variations of the algorithm. A web demo of the algorithm is available, showcasing its capabilities.

Main themes

• Terrain rendering algorithm
• Graphics rendering history
• Gaming technology evolution
• Code simplicity and efficiency
• Nostalgia and retro gaming
• Open-source project best practices
• Artistic expression in coding
• Retro game development techniques

What commenters say

• The simplicity and efficiency of the algorithm are impressive and nostalgic for some commentators.
• The algorithm's limitations, such as lack of support for complex geometries, are noted, but its achievements are still appreciated.
• Some commentators argue that the focus on brevity and simplicity in code can be misguided and prioritize succinct notation over efficient computation.
• Others see the value in such coding challenges as a form of entertainment and artistic expression, rather than a pursuit of computational efficiency.
• The discussion also touches on the history of graphics rendering and the evolution of gaming technology.
• Comparisons are made to other games and rendering engines of the time, such as VistaPro and Voxatron.
• The importance of including visual aids, such as screenshots, in open-source projects is also highlighted.
• Some commentators share their own experiences and memories of playing games that utilized similar rendering algorithms.