https://github.com/jsyrjala/zraytrace

Raytracing implemented in Zig language
https://github.com/jsyrjala/zraytrace

raytracing raytracing-in-one-weekend zig

Last synced: about 2 months ago
JSON representation

Raytracing implemented in Zig language

• Host: GitHub
• URL: https://github.com/jsyrjala/zraytrace
• Owner: jsyrjala
• Created: 2020-10-03T08:05:34.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-10-03T19:08:45.000Z (over 3 years ago)
• Last Synced: 2024-10-16T03:43:03.346Z (3 months ago)
• Topics: raytracing, raytracing-in-one-weekend, zig
• Language: Zig
• Homepage:
• Size: 3.75 MB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# zraytrace

Ray tracing implemented in [Zig](https://ziglang.org/).

## Inspiration

Code follows mostly [Ray Tracing in One Weekend](https://raytracing.github.io/) and [Physically Based Rendering](http://www.pbr-book.org/). 

## Features

Single threaded, uses only on CPU.

Materials:

- diffuse (matte)

- metal (fully reflective)

- dielectric (glass like objects)

Shapes

- sphere

- triangle

Textures:

- constant color

- image textures

Algorithms

- Bounded volume hierarchy

File formats:

- PNG images, read and write

- OBJ 3d models, read

# Examples

## Spheres

This doesn't use bounded volume hierarchy because its overhead is too big for scene with 7 spheres.

![7 spheres with various materials and textures](https://github.com/jsyrjala/zraytrace/raw/master/showcase/7-spheres.png)

From the left:

- reflective texture mapped sphere (earth)

- hollow dielectric sphere (glass)

- diffuse texture mapped sphere (Nitor logo)

- filled dielectric sphere (glass)

- reflective sphere with silver color (mirror ball)

- diffuse green sphere (ground level)

Some statistics

- Surfaces:                 7

- Pixels:                   1000x1000

- Samples per pixel:        1000

- Max recursion depth:      30

- Total reflections:     1144753226

- Total background hits: 999892115

- Total pixels:          1000000

- Total samples:         1000000000

- Total rays:            2144645362

- Total reflections:     1144753226

- Pixels per second:     1619.68 pixels/s

- Total runtime:         617.41 seconds