first-person real‑time ray-traced room scene with interactive controls.

Made a real‑time ray-traced room scene with interactive controls.

Key features:

• use CPU to render, openMP paralleled

• Room + table + metal cube + mirror scene: Constructed in main.cpp via build_scene().

  • Room and table meshes come from build_room_mesh() / build_table_mesh()
  • the metal cube is catmull subdivided once
  • the mirror is a quad on the back wall.

  All are converted to triangle soups with materials in build_scene().

• Materials:

  • Walls use a pale near-white color
  • table is wood-like
  • cube is metal (high ks/km),
  • mirror is highly reflective (high ks/km).

  Defined and assigned in build_scene() in main.cpp.

• Dynamic lights: Two point lights in build_scene(): 1. a dim overhead fill (I ≈ [0.2, 0.2, 0.2]) 2. a flashlight attached to the camera (flashlight->p updated each frame; I ≈ [0.9, 0.8, 0.7]). The flashlight follows the camera in the main loop’s update_flashlight.

• Camera controls: Keyboard-only. First-person view of the scene.

  • WASD moves the target

  • Arrow keys rotate the view

  • Space/Ctrl move up/down

    (Because CPU rendering is slow, and the user would be confused by how fast/far should they drag.) SDL_KEYDOWN handling and camera_eye usage in main.cpp.

• Ray-traced rendering loop: Windowed SDL viewer in main.cpp starts ray-trace jobs (render_frame) and updates an SDL texture when a frame finishes. Resolution matches the window size.