https://github.com/knockerpulsar/raytracer

Experimenting with creating a CPU raytracer.
https://github.com/knockerpulsar/raytracer

Last synced: 3 months ago
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Experimenting with creating a CPU raytracer.

• Host: GitHub
• URL: https://github.com/knockerpulsar/raytracer
• Owner: KnockerPulsar
• Created: 2022-02-05T16:23:52.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2025-03-23T22:40:44.000Z (4 months ago)
• Last Synced: 2025-04-12T17:14:37.898Z (3 months ago)
• Language: C++
• Homepage:
• Size: 57.2 MB
• Stars: 7
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# raytracer

Experimenting with creating a CPU raytracer. Main resources:

- [_Ray Tracing in One Weekend_](https://raytracing.github.io/books/RayTracingInOneWeekend.html)

- [_Ray Tracing: The Next Week_](https://raytracing.github.io/books/RayTracingTheNextWeek.html)

# Showcase

![Cornell](./screenshots/cornell.png)

*Cornell box. This version added support for quads, boxes, lights, textures, and more! Rendered with 10k samples and 50 bounces*

![Weekend final](./screenshots/weekend_final.png)

*Showcase of an earlier version of the renderer, implements all of "Raytracing in one weekend"'s core functions + multi-threading*

![Texture mapping](./screenshots/two_spheres.png)

*Texture mapping for spheres!*

![Screenshot with glass, metallic, and diffuse balls](./screenshots/screenshot.png)  

*Earlier version with glass, metallic, and diffuse balls. Notice how the glass ball is hollow?*

# Features

- Currently renders only spheres (more to come).

- Three material types: diffuse, metallic, dielectric. 

- Supports spatial acceleration with BVHs.

- Texture mapping.

# Dependencies

- [raylib](https://github.com/raysan5/raylib) (4.0) for drawing and Vector3 class library

- [glm](https://github.com/g-truc/glm) (latest) for transforms

- [rlImGui](https://github.com/raylib-extras/rlImGui) (imgui docking branch @77637fd9363ac7ef7b6fb6419b760602192a38bd) for imgui support

- [nlohmann-json](https://github.com/nlohmann/json) for json support

- [argumentum](https://github.com/mmahnic/argumentum) (v0.3.1) For CLI options

- [imguizmo](https://github.com/CedricGuillemet/ImGuizmo) (vendored) for translation/rotation/scale gizmos

- [stb_image](https://github.com/nothings/stb/tree/master) (vendored) for image loading and storing

- [ImGuiFileDialog](https://github.com/aiekick/ImGuiFileDialog) (v0.64), pretty self explanatory