# ray tracing one (blogs) — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover ray tracing one. Page: Feed: --- ## [Software and AI - Plotting vs. Pantsing](https://pyjarrett.github.io/2026/07/18/software-and-ai-plotting-versus-pantsing.html) _2026-07-18 · pyj's blog_ An alt take on why some like or dislike AI ## [Marcus Aurelius' Fortress of the Mind](https://pyjarrett.github.io/2026/06/14/marcus-aurelius-fortress-of-the-mind.html) _2026-06-14 · pyj's blog_ Thoughts on "Meditations" by the Roman emperor Marcus Aurelius ## [C++ Alternative Operator Representations](https://pyjarrett.github.io/2026/04/19/cpp-alternative-operator-representations.html) _2026-04-19 · pyj's blog_ Equivalent ways of writing the same tokens. ## [Ada's Super Powered Enums](https://pyjarrett.github.io/2026/03/24/super-powered-enums.html) _2026-03-24 · pyj's blog_ A quick look at the power of Ada's enums. ## [The First One Will Be Awful](https://pyjarrett.github.io/2026/02/10/the-first-one-will-be-awful.html) _2026-02-10 · pyj's blog_ Fighting the blank page ## [Binding Lua to C++](https://pyjarrett.github.io/2026/01/28/binding-lua.html) _2026-01-28 · pyj's blog_ Writing compile-time bindings to Lua ## [Writing Anteforth, a Forth-like in SPARK](https://pyjarrett.github.io/2026/01/13/anteforth.html) _2026-01-13 · pyj's blog_ Writing a verified Forth VM in Ada/SPARK ## [Inspecting Type and Value Info at C++ Build Time](https://pyjarrett.github.io/2025/08/16/cpp-build-time-info.html) _2025-08-16 · pyj's blog_ Leveraging templates with the compiler and linker to see type and value info ## [File Hashes from Python](https://pyjarrett.github.io/2025/07/20/hash-python.html) _2025-07-20 · pyj's blog_ Python's standard library to the rescue ## [Writing a Verified Postfix Expression Calculator in Ada/SPARK](https://pyjarrett.github.io/2025/06/10/postfix-calculator.html) _2025-06-10 · pyj's blog_ A venture in writing a larger SPARK project. ## [Build with the cheapest GPUs (Sponsored)](https://crawlproof.com/a/kqAJxEqTompU) _2025-06-10 · **Sponsored**_ Deployed a live API in minutes; one user spent under $10. ## [Improv Violin in a Band](https://pyjarrett.github.io/2025/05/17/improv-violin.html) _2025-05-17 · pyj's blog_ Techniques for playing violin in a band. ## [Ruby break takes an expression](https://henry.bearblog.dev/ruby-break-takes-an-expression/) _2025-05-09 · henry · A title for your blog_ I was reading some Rust code today and I found out that break in Rust can return a value. I thought this was a really useful feature and I wondered if Ruby was the same. Sure enough ➜ irb irb ( main ): 001 \* ( 0 .. 10 ) . each do | i | irb ( main ): 002 \* p i irb ( main ): 003 \* break "broke" if i \> 5 irb ( main ): 004 \> end 0 1 2 3 4 5 6 =\> "broke" irb ( main ): 005 \* ( 0 .. 10 ) . each do | i |… ## [Ray Tracing in One Weekend](https://henry.bearblog.dev/ray-tracing-in-one-weekend/) _2025-04-27 · henry · A title for your blog_ It’s been a weekend so what do you do? You implement a ray tracer of course. Ray Tracing in One Weekend The article is really well done. It builds up from a red circle to the image above in easily digestible steps. I’m pretty sure there are a couple of bugs but the way the subject is presented makes it easy to reason your way past them. I highly recommend giving this a go. It’s kind of crazy how… ## [Ada on the Raspberry Pi 5](https://pyjarrett.github.io/2025/04/27/alire-on-raspberry-pi-5.html) _2025-04-27 · pyj's blog_ Building Alire on Raspberry Pi 5 ## [Machine Learning Part 7](https://henry.bearblog.dev/machine-learning-part-7/) _2025-04-25 · henry · A title for your blog_ Early on I added a configuration file ( config.json ) that enabled me to play with the network parameters. In machine learning parlance the parameters to the model are called hyper-parameters. Now I have a complete and reasonably fast 1 neural network I can play with the hyper-parameters to see if I can get a more accurate model. Hyper-parameter tuning TLDR: It seems I might have accidentally hit… ## [Cole Slaw](https://pyjarrett.github.io/2025/04/24/cole-slaw.html) _2025-04-24 · pyj's blog_ A Southern Dish Ripe with Personality ## [Generating Colors for Blog Syntax Highlighting](https://pyjarrett.github.io/2025/04/19/generating-colors.html) _2025-04-19 · pyj's blog_ A program to automatically create color palettes. ## [Let’s talk about Type Coercion in Ruby](https://henry.bearblog.dev/lets-talk-about-type-coercion-in-ruby/) _2025-04-18 · henry · A title for your blog_ It’s a bit unusual to talk about type coercion in Ruby. Being a dynamically typed “message passing” language you generally don’t need to think about types too much. But a couple of days ago I was implementing my own “number like” class and I needed to be able to sum a large list. In Ruby overloading operators is easy and intuitive but there is one case that’s a bit more complicated. It’s pretty… ## [Running my first LLM locally](https://pyjarrett.github.io/2025/04/17/running-my-first-llm.html) _2025-04-17 · pyj's blog_ Trying out ollama ## [The soccer field problem](https://pyjarrett.github.io/2025/04/16/soccer-field-problem.html) _2025-04-16 · pyj's blog_ A hypothetical interview problem ## [Licensed Dispensaries, Pay with Crypto (Sponsored)](https://crawlproof.com/a/WEOsNp991IOD) _2025-04-16 · **Sponsored**_ Search verified licensed dispensaries and pay with Bitcoin, Lightning, or stablecoins. ## [Learning Tests](https://pyjarrett.github.io/2025/04/13/learning-tests.html) _2025-04-13 · pyj's blog_ Testing libraries when behavior is unclear ## [Marathon | Reveal Cinematic Short](https://henry.bearblog.dev/marathon-reveal-cinematic-short/) _2025-04-13 · henry · A title for your blog_ This is insane! Marathon | Reveal Cinematic Short As soon as I started watching I knew it was from Alberto Mielgo . He wrote and directed The Witness for Netflix’s anthology Love, Death & Robots which I absolutely loved. As someone commented on the Youtube video, if Marathon sucks at least we got this! As for Marathon; I love the art style and the design. It gives me Oni flashbacks which is a… ## [Machine Learning Part 6](https://henry.bearblog.dev/machine-learning-part-6/) _2025-04-11 · henry · A title for your blog_ As I have mentioned several times, there is a problem with the training algorithm where I have been processing each digit one by one. Instead, I should have been leveraging matrix math and processing batches of images in a single operation. It’s now time to tackle this problem. But first some bike shedding / procrastination. I gave NetworkConfig a work over. Layers The way layers are defined in… ## [Machine Learning Part 5](https://henry.bearblog.dev/machine-learning-part-5/) _2025-04-11 · henry · A title for your blog_ After the ndarray diversion I’m back following the book 1 . This time I’m implementing mini batch gradient descent and dataset standardisation. 2 Mini Batch Gradient Descent Mini-batch gradient descent is an optimisation technique that, instead of using the entire dataset for each update, it splits the data into small subsets (mini-batches) of the data, computes the gradient, and updates the… ## [Vim, Markdown, and Unordered List Indentation](https://pyjarrett.github.io/2025/04/09/vim-markdown-and-unordered-list-indentation.html) _2025-04-09 · pyj's blog_ Preventing unordered list indentation in Vim ## [Machine Learning Part 4](https://henry.bearblog.dev/machine-learning-part-4/) _2025-04-07 · henry · A title for your blog_ In Part 3 of this series I presented some stats for the neural network using a Softmax activation function on the hidden layer. Unfortunately I showed the wrong output. The ouput I showed was for a network with two hidden layers not one as I have been using for the other stats. The 16m 34s run time and the 100% accuracy was because of the extra hidden layer. These are the actual training and… ## [Hello, odin](https://pyjarrett.github.io/2025/04/04/hello-odin.html) _2025-04-04 · pyj's blog_ Downloading odin and writing simple programs ## [Software Update on the Command Line](https://henry.bearblog.dev/software-update-on-the-command-line/) _2025-04-03 · henry · A title for your blog_ Software update (the one in System Settings) failed on my laptop because I didn’t have enough disk space. The UI doesn’t give you the ability to chose which updates to run. But there’s a command line version that does. ❯ softwareupdate --list Software Update Tool Finding available software Software Update found the following new or updated software: \* Label: Command Line Tools for Xcode-15.3… ## [Machine Learning Part 3](https://henry.bearblog.dev/machine-learning-part-3/) _2025-04-02 · henry · A title for your blog_ In Machine Learning Part 2 I talked about how the Rust neural network code works, but I forgot the stats that show how well it works. They were in my original post, but here they are again for reference. Training took 10 minutes and 13 seconds for 30 epochs and finished the training set with 98.40%. Here are the tests stats. Confusion Matrix: Predicted Actual 0 1 2 3 4 5 6 7 8 9… ## [Me making a blog](https://pyjarrett.github.io/2025/03/23/making-a-blog.html) _2025-03-23 · pyj's blog_ Writing a static site generator and parsing Markdown! ## [Ultra-Quiet Business Mini (Sponsored)](https://crawlproof.com/a/wGlY7EoLb4s2) _2025-03-23 · **Sponsored**_ Compact business mini, ultra-quiet for focused work. ## [Updating to Windows 11](https://pyjarrett.github.io/2025/02/09/updating-to-windows-11.html) _2025-02-09 · pyj's blog_ Learning about TPMs, MBR, CSM, and GPT to upgrade to Windows 11