nthia braindumps experiments in computer tool-making https://blog.nthia.dev en Wed, 19 Mar 2025 00:00:00 +0000 Wed, 19 Mar 2025 00:00:00 +0000 1440 vec3 swizzles as matrices exhaustively enumerated matrices for every vec3 swizzle https://blog.nthia.dev/vec3-swizzles-as-matrices.html Wed, 19 Mar 2025 00:00:00 +0000 contact manifold for 3d collisions calculate the contact manifold with polygon clipping on convex hull collisions in 3d https://blog.nthia.dev/contact-manifold-for-3d-collisions.html Fri, 15 Nov 2024 00:00:00 +0000 convex hull collisions in 3d test for 3d collisions by separating axes, generating a contact point and minimum translation vector https://blog.nthia.dev/convex-hull-collisions-in-3d.html Fri, 23 Aug 2024 00:00:00 +0000 a concise LR(1) parser turn a grammar into an AST in under 200 lines of code https://blog.nthia.dev/lr1-parser.html Sat, 17 Feb 2024 00:00:00 +0000 using gnu units for hormone calculations using the units command to convert hormonal blood test results https://blog.nthia.dev/using-gnu-units-for-hormone-calculations.html Sat, 20 May 2023 00:00:00 +0000 augmenting timestamp sorting with causality improving sorting by timestamp for messages generated on devices where clocks may disagree https://blog.nthia.dev/augmenting-timestamp-sorting-with-causality.html Fri, 24 Feb 2023 00:00:00 +0000 writing wasm as raw bytes making a program from scratch to generate a binary wasm library https://blog.nthia.dev/writing-wasm-as-raw-bytes.html Tue, 10 Jan 2023 00:00:00 +0000 using pgp in direct messages how to drive gpg manually on the command-line to encrypt messages on any platform https://blog.nthia.dev/pgp-dm.html Sat, 19 Nov 2022 00:00:00 +0000