This major release marks an overhaul of the entire series, moving from a primarily PDF format to a web accessible format using Markdeep (https://casual-effects.com/markdeep/). This represents a huge overhaul to the contents, particularly around source code blocks in the text, mathematical typesetting and source-code cleanup.

Common

• Change: Moved existing InOneWeekend, TheNextWeek, TheRestOfYourLife content to io repo
• Change: Rewrote vec3.h cross function for clarity
• New: General release to web
• New: Created single monolithic raytracing.github.io repo
• New: License change to CC0 in COPYING.txt
• New: CHANGELOG.md
• New: CONTRIBUTING.md
• New: COPYING.txt
• New: README.md
• New: raytracing.github.io links to all the three books
• New: CSS for all books
• New: CSS for the print variant of the books
• Fix: All instances of hitable have become hittable
• Fix: Replaced drand48() with portable random_double number generation
• Delete: Deprecated existing InOneWeekend, TheNextWeek, TheRestOfYourLife repos

In One Weekend

• Change: README files updated for top level, source, and books
• Change: Text, Chapter 0 Overview has become Chapter 1, all subsequent chapters incremented
• Change: Text, Syntax highlighting of source modifications
• Change: Text, Chapter 3, Reorder include files in code blocks to match src conventions
• Change: Text, Chapter 3, Consistent use of spaces in code blocks
• Change: Text, Chapter 3, Reordered vec3 class functions to + - * /
• Change: Text, Chapter 4, Reorder include files in code blocks to match src conventions
• Change: Text, Chapter 6, Reorder include files in code blocks to match src conventions
• Change: Text, Chapter 6, Consistent use of spaces in code blocks
• Change: Text, Chapter 7, Consistent use of spaces in code blocks
• Change: Text, Chapter 9, Consistent use of spaces in code blocks
• Change: Text, Chapter 9, Put function signatures and { on the same line
• Change: Text, Chapter 10, Consistent use of spaces in code blocks
• Change: Text, Chapter 10, Put function signatures and { on the same line
• Change: Text, Chapter 11, Consistent use of spaces in code blocks
• Change: Text, Chapter 13, Put function signatures and { on the same line
• New: Markdeep page created for entire body of text
• New: Markdeep MathJax for formulae and equations for body of text
• New: raytracing.github.io/books/RayTracingInOneWeekend.html
• Fix: Text, Chapter 7, Add #include "random.h" in code blocks
• Fix: Text, Chapter 10, Added metal fuzziness parameter for initial dielectric
• Fix: Text, Chapter 13, Added metal fuzziness parameter
• Fix: Code, Removed extraneous ; from vec3::&operator[] signature
• Delete: Code, vec3 p = r.point_at_parameter(2.0); in main.cc

The Next Week

• Change: Text, Chapter 0 Overview has become Chapter 1, all subsequent chapters incremented
• Change: Text, Syntax highlighting of source modifications
• Change: Text, Chapter 2, Consistent use of spaces in code blocks
• Change: Text, Chapter 3, Consistent use of spaces in code blocks
• Change: Text, Chapter 4, Consistent use of spaces in code blocks
• Change: Text, Chapter 5, Consistent use of spaces in code blocks
• Change: Text, Chapter 5, added "texture" to "We can use that texture on some spheres"
• Change: Text, Chapter 7, Consistent use of spaces in code blocks
• Change: Text, Chapter 7, "This is yz and xz" changed to "This is xz and yz"
• Change: Text, Chapter 8, Changed "And the changes to Cornell is" to "... Cornell are"
• Change: Text, Chapter 9, Changed short if statements to two lines for Consistency
• Change: Text, Chapter 10, Consistent use of spaces in code blocks
• Change: Code and Text, Chapter 9, cleaned up implementation of constant_medium::hit
• Change: Code and Text, Chapter 9, Rewrote debug functionality in constant_medium::hit
• New: raytracing.github.io/books/RayTracingTheNextWeek.html
• New: README.md, source README.md
• New: Markdeep page created for entire body of text
• New: Markdeep MathJax created for formulae and equations for body of text
• New: Earth map picture for use in rendering
• Fix: Text, Chapter 2, The lambertian class definition now uses vec3 instead of texture
• Fix: Text, Chapter 7, Changed cornell_box hittable array size to 5
• Fix: Code and Text, Chapter 3, Changed List[0] to List[i] in hittable_list::bounding_box()
• Fix: Code and Text, Chapter 3, Replaced fmax and fmin with ffmax and ffmin
• Fix: Code, Add missing headers to constant_medium.h to fix g++ compiler error

The Rest of Your Life

• Change: Text, Chapter 0 Overview has become Chapter 1, all subsequent chapters incremented
• Change: Text, Syntax highlighting of source modifications
• Change: Text, Chapter 2, Reorder include files in code blocks to match src conventions
• Change: Text, Chapter 3, Reorder include files in code blocks to match src conventions
• Change: Text, Chapter 6, Consistent use of spaces in code blocks
• Change: Text, Chapter 6, Consistent use of spaces in code blocks
• Change: Text, Chapter 8, Changed calculation of a axis to pseudocode
• Change: Text, Chapter 8, Consistent use of spaces in code blocks
• New: raytracing.github.io/books/RayTracingTheRestOfYourLife.html
• New: README.md, source README.md
• New: Markdeep page created for entire body of text
• New: Markdeep MathJax created for formulae and equations for body of text
• Fix: Text, Chapter order starting from chapter 2
• Fix: Text, Renamed figures and images to match new chapter numbering
• Fix: Text, Chapter 4, Rewrote formula for "Color" to "Color = A * color(direction"
• Fix: Code and Text, Chapter 6, material::scattering_pdf now returns type float
• Fix: Code and Text, Chapter 6, removal of factor of 2 to random_cosine_direction calculation