4 ms·
> also drove the 'room over room' technology which was groundbreaking at the time. Descent did this in 1994.
by SJC_Hacker 2y ago
> also drove the 'room over room' technology which was groundbreaking at the time.
Descent did this in 1994.
- ChrisClark 2y agoDescent was a polygonal game though, Duke3D was a raycasting engine. It was the first four a raycasting engine, and quite impressive.
- mysterymath 2y agoDuke3D isn't a raycaster; it's a portal-based quad rasterizer. Wall quads are forced vertical, and floor quads are rasterized using a neat trick. The renderer computes successive lines of constant distance along slooped floor surfaces, then draws textures using affine scaling, which is correct along those lines. The portal walls clip the draw of successive sectors, which solves the hidden surface problem. https://fabiensanglard.net/duke3d/build_engine_internals.php https://fabiensanglard.net/duke3d/build_engine_internals.php