https://github.com/y-taka-23/raytracing-go

A simple Go library for 3D ray-tracing rendering, implementing the book Ray Tracing in One Weekend. 📸
https://github.com/y-taka-23/raytracing-go

3d-graphics computer-graphics go golang raytracing

Last synced: about 1 year ago
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A simple Go library for 3D ray-tracing rendering, implementing the book Ray Tracing in One Weekend. 📸

• Host: GitHub
• URL: https://github.com/y-taka-23/raytracing-go
• Owner: y-taka-23
• License: apache-2.0
• Created: 2021-03-14T21:02:11.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2021-04-03T12:39:42.000Z (about 5 years ago)
• Last Synced: 2025-06-08T11:08:00.001Z (about 1 year ago)
• Topics: 3d-graphics, computer-graphics, go, golang, raytracing
• Language: Go
• Homepage:
• Size: 2.95 MB
• Stars: 54
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Ray Tracing in Go

![cover image](images/cover.png)

A Go implementation of the book [Ray Tracing in One Weekend](https://raytracing.github.io/). The repository provides a library to describe and render your own scenes. For more detail, see [`examples/main.go`](examples/main.go).

## Getting Started

```shell

git clone git@github.com:y-taka-23/raytracing-go.git

cd raytracing-go

make examples

./bin/example > example.ppm

open example.ppm

```

## Materials

### Lambertian

|color|result|

|:----:|:----:|

|(0.8, 0.1, 0.1)|![red lambertian sphere](images/lambertian_red.png)|

|(1.0, 1.0, 1.0)|![white lambertian sphere](images/lambertian_white.png)|

|(0.0, 0.0, 0.0)|![black lambertian sphere](images/lambertian_black.png)|

### Metalic

|fuzziness|result|

|:----:|:----:|

|0.0|![metalic sphere of fuzziness 0.0](images/metal_f00.png)|

|0.15|![metalic sphere of fuzziness 0.15](images/metal_f15.png)|

|0.3|![metalic sphere of fuzziness 0.3](images/metal_f30.png)|

### Dielectric

|refractive index|result|

|:----:|:----:|

|1.0|![dielectric sphere of refractive index 1.0](images/dielectric_i100.png)|

|1.5|![dielectric sphere of refractive index 1.5](images/dielectric_i150.png)|

|2.0|![dielectric sphere of refractive index 2.0](images/dielectric_i200.png)|

## Camera Setting

### Angle of View

|virtical angle (degree)|result|

|:----:|:----:|

|90|![result of the vertical angle in 90 degree](images/fov_90.png)|

|60|![result of the vertical angle in 60 degree](images/fov_60.png)|

|30|![result of the vertical angle in 30 degree](images/fov_30.png)|

### Aperture

|aperture|result|

|:----:|:----:|

|0.0|![result of the aperture 0.0](images/aperture_000.png)|

|0.5|![result of the aperture 0.5](images/aperture_050.png)|

|1.0|![result of the aperture 1.0](images/aperture_100.png)|

### Depth of Field

|focus distance|result|

|:----:|:----:|

|6|![result of the depth of field 6](images/dof_06.png)|

|9|![result of the depth of field 9](images/dof_09.png)|

|12|![result of the depth of field 12](images/dof_12.png)|

## Reference

* Shirley, P. (2016). _Ray Tracing in One Weekend_ ([online edition available](https://raytracing.github.io/))