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ARCHITECTURE.md

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Brief overview of the project's architecture.

3 major components:

  1. Canvas - lightweight abstraction over SDL2's Canvas that supports writing to a given pixel position.
  2. Scene - Contains the geometry, BVH. Has some helpers in world space.
  3. Raytracer - Handles "raytracing logic" as well as transforms from world -> screen space.

The Raytracer queries the Scene and then writes to the Canvas. Most of the parallelism is in the Raytracer, with the Scene assumed to be static while a render is in progress.