An ongoing source of frustration is maintaining continuous integration in open source hobby projects. It’s really useful to have continuous builds, automated tests and package delivery, but it comes with maintenance. Time will pass and the time will come where I want to tag a build in git and let all my lovely automated CI publish a package, or maybe work on a project I haven’t touched for a while and I want to run the tests, but for what feels like more often than not, the build fails for an unexpected reason.

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Often a small fix
Requires thorough debugging
Its trace left unseen

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I stopped going on Twitter a while ago because it has the tendency to evoke rage, as it is designed to do. But every now and then I check back in - it can be useful sometimes for keeping up with graphics research, gamedev news and some people do post nice things, like sharing projects they are working on, so there is something to pull me back from time to time.

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Work has been continuing smoothly on my Rust graphics engine project hotline over the last month or so. I was slowly winding down from my current day job and have a little time off before starting a new role, so that has given me more time to dedicate to this project. I have been focusing on implementing different graphics demos and rendering techniques, which has thrown up a few missing pieces in the gfx backend and I am keen to get the API as complete as possible, because I am unsure of how much time I will have to work on it when I start my new role or even the validity of working on code in the public domain.

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Following on from the part 2 post a little while ago, I have been continuing work on my graphics engine hotline in Rust. My recent focus has been on plugins, multi-threaded command buffer generation and hot reloading for Rust code, hlsl shader code and pmfx render configs. I have made decent progress to the point where there is something quite usable and structured in a way I am relatively happy with. This leg of the journey has been by far the most challenging though, so I wanted to write about my current progress and detail some of the issues I have faced.

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I have just finished up a linear algebra maths library in Rust and it’s available on crates.io. It contains the usual implementation of vectors, matrices and quaternions but also tons of useful intersection, distance functions, point tests, graphs, utility functions and ergonomic decisions to hopefully make this fun and nimble to use for gamedev and graphics coding. I have been spending small chunks of time writing functions and tests over the summer, it has been quite enjoyable and I have learned a lot more about the Rust programming language, especially going into more detail with traits and trait bounds than I have previously, and also my first real work with macros.

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