Ray-Casting

This project recreates the ray-casting method used in classic 3D video games such as DOOM and Wolfenstein 3D. The method involves shooting rays through a 2D array for every vertical row of pixels, where the height of the darkened “wall” is determined by the length of each ray.

Overview

• Ray-casting Technique: Simulates a pseudo-3D environment by calculating wall heights based on ray distances.
• Early 3D Games: Inspired by the mechanics and graphics of DOOM and Wolfenstein 3D.

For a detailed technical explanation of the ray-casting technique, refer to Lode Vandevenne’s tutorial.

Controls

• ↑: Move forward
• ↓: Move backward
• ←: Turn left
• →: Turn right

Source Code

The source code for the engine can be found here: Download RaycastEngine.js

Processing.js

Additional Resources

• DOOM (1993)
• Wolfenstein 3D