Borland Pascal 7.0 taught a generation of programmers the math behind modern GPUs. While BGI was slow, direct memory access allowed for smooth 3D engines similar to Doom or Wolfenstein 3D .

: Filling polygons with a single color based on the surface normal.

: Use asm blocks for the inner rendering loops.

Grafik und Animation mit Borland Pascal 7.0: 3D-Grundlagen Borland Pascal 7.0 (BP7) was the pinnacle of DOS-era development. It offered high performance through its built-in Assembler and the Graphics Kernel System (BGI). 🏗️ The Technical Foundation : The standard for 3D. Resolution : 320x200 pixels. Color : 256 indexed colors. Memory : 64KB video segment at $A000:0000 . 📐 Core 3D Concepts in BP7 1. The Coordinate System In BP7, you define a 3D point using a record : type Point3D = record x, y, z: Real; end; Use code with caution. Copied to clipboard 2. Projection (3D to 2D)