Implementation in Odin of the software raytracer, by following allong with the book.

• 2 Output an Image

  • 2.1 The PPM Image Format
  • 2.2 Creating an Image File
  • 2.3 Adding a Progress Indicator

• 3 The vec3 Class

  • 3.1 Color Utility Functions

• 4 Rays, a Simple Camera, and Background

  • 4.1 The ray Class
  • 4.2 Sending Rays Into the Scene

• 5 Adding a Sphere

  • 5.1 Ray-Sphere Intersection
  • 5.2 Creating Our First Raytraced Image

• 6 Surface Normals and Multiple Objects

  • 6.1 Shading with Surface Normals
  • 6.2 Simplifying the Ray-Sphere Intersection Code
  • 6.3 An Abstraction for Hittable Objects
  • 6.4 Front Faces Versus Back Faces
  • 6.5 A List of Hittable Objects
  • 6.6 Some New C++ Features
  • 6.7 Common Constants and Utility Functions
  • 6.8 An Interval Class

• 7 Moving Camera Code Into Its Own Class

• 8 Antialiasing

  • 8.1 Some Random Number Utilities
  • 8.2 Generating Pixels with Multiple Samples

• 9 Diffuse Materials

  • 9.1 A Simple Diffuse Material
  • 9.2 Limiting the Number of Child Rays
  • 9.3 Fixing Shadow Acne
  • 9.4 True Lambertian Reflection
  • 9.5 Using Gamma Correction for Accurate Color Intensity

• 10 Metal

  • 10.1 An Abstract Class for Materials
  • 10.2 A Data Structure to Describe Ray-Object Intersections
  • 10.3 Modeling Light Scatter and Reflectance
  • 10.4 Mirrored Light Reflection
  • 10.5 A Scene with Metal Spheres
  • 10.6 Fuzzy Reflection

• 11 Dielectrics

  • 11.1 Refraction
  • 11.2 Snell's Law
  • 11.3 Total Internal Reflection
  • 11.4 Schlick Approximation
  • 11.5 Modeling a Hollow Glass Sphere

• 12 Positionable Camera

  • 12.1 Camera Viewing Geometry
  • 12.2 Positioning and Orienting the Camera

• 13 Defocus Blur

  • 13.1 A Thin Lens Approximation
  • 13.2 Generating Sample Rays

• 14 Where Next?

  • 14.1 A Final Render