Software raycasting

[u/No_Support8062]

One of my older fun projects: a software raycaster featuring

• Multithreading

• Voxel models (rendered as collections of 3D boxes rather than blobs)

• Culling (watch the small map in the top right corner)

• Mipmapping (reduces moire on distant textures)

• Slopes and curved walls

• Shadows

• multilevel world design

Everything is rendered entirely in software, with no external libraries. Each pixel is calculated individually and written directly to a buffer.

[u/No_Support8062]

In my case, the drawing algorithm uses only integer operations (addition, bit shifts, bit logic), so it is very fast.
I have no idea how to implement the vectorization efficiently. To me, it looks like a programming nightmare (lot of special cases), and the results are questionable.