raytracer

README

Raytracer

A simple raytracer implemented in Go to explore the profiling and optimization tooling that is provided by Go.

Original source

The source was apdapted from C++ source obtained from www.scratchapixel.com; released under GPL V3 or later.

Running and Analysing

The following command will build and run the raytracer.

go build && time ./raytracer

Use the following command to build, run and then analyse the cpu.pprof profile file.

go build && time ./raytracer &&  go tool pprof -http=:8080 cpu.pprof

Building and running the C++ Raytracer

Conan package manager and CMake are required to compile and build the program. Use the following commands to build and run the C++ version of the raytracer.

cd cpp # change directory into the cpp directory
conan install .
cmake . -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release
cmake --build .
time bin/raytracer ../scene.json 

Useful resources and links

GopherCon 2019: Dave Cheney - Two Go Programs, Three Different Profiling Techniques #22: using the Go execution tracer