RayTracer

RayTracer

An educational ray tracer. It is meant to be a complete application, but can be used as a library-like package. The project uses GL/GLFW for visualization, but can be replaced with a custom solution (eg. in-memory store, write to file).

Prerequisites

• Go compiler
• Installed go-gl
• Installed go-glfw

Building

A simple go build . should do the job. If you plan on building more than once, it might be better to use go build -i . the first time. A build-and-run scrip is included for convenience.

As a minimum it will have these features

Geometry

• intersect with basic objects (plane, sphere, rectangle)
• intersect with triangle mesh
• translate / rotate / scale

Textures

• diffuse
• specular

Camera

• perspective

Lighting

• hard shadows

Scene

• load from file

As a follow-up it can be better improved with

Geometry

• bounding box
• k-d trees

Textures

• normal
• bitmap
• reflection
• refraction
• layered

Camera

• parallel
• fish eye

Lighting

• soft shadows
• global illumination

Scene

• save scenes
• save renderings
• environment map