raytracer-go

A raytracer in Go.

This is an implementation of "The Ray Tracer Challenge" by Jamis Buck, which teaches you how to write a raytracer using language-agnostic BDD/Cucumber tests.

Installation

To install using go: go get https://github.com/tiegz/raytracer-go

Usage

• raytracer-go example: render an example
• raytracer-go version: print version
• raytracer-go help: print instructions

Introduction to the Types

Here are the types used in the raytracer (generated using github.com/tiegz/pkgviz-go):

Testing

• Run all tests: go test ./...
• Run all benchmarks: go test ./... -bench=.
  • Benchmarking philosophy: focus on methods that are crucial to rendering and could possibly be affected by regressions. Avoid benchmarking things that are simple Go operations (+-/*) and/or won't change much (e.g. Tuple.Add()).
  • Benchmark comparisons are reported in the GitHub Action for each commit now.