Founder of Molecular Matters • C++ & low-level programming • Created Live++ (@liveplusplus.bsky.social) https://liveplusplus.techhttps://bsky.app/profile/molecularmusing.bsky.socialhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mvrekher5k2jAbsolutely not a good look, OpenAI. Imagine you're a trillion dollar valued company and can't afford to pay for NYTimes. Instead, it's "ah nice" when you're getting behind their paywall. Also great to read about the "fair use" argument. [contains quote post or other embedded content]18 Sep 2026 04:49 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mvrekher5k2jhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mvnkpsrx2k2wRant time: the fact that std::initializer_list in C++ is a partial language construct with special syntax, a compiler-generated array with special lifetime, yet needs a header and an std::initializer_list to provide a type is BONKERS. Looks like any other std type, yet it's not.16 Sep 2026 16:29 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mvnkpsrx2k2whttps://bsky.app/profile/molecularmusing.bsky.social/post/3mv5lbfyoic2iIt seems that Visual Assist X has never met our lord and saviour, COM:10 Sep 2026 07:56 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mv5lbfyoic2ihttps://bsky.app/profile/molecularmusing.bsky.social/post/3mumgmfmbn22rI rewrote the PVS computation. It now works in quadrants, making use of the fact that all occluders are the same size and on a grid. Angles are now sorted using the wedge product, so there's no floating-point math or radix sort anywhere. This is much faster and bit exact now! [contains quote post or other embedded content]03 Sep 2026 12:18 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mumgmfmbn22rhttps://bsky.app/profile/molecularmusing.bsky.social/post/3muabqffgp22iThis is what I'm talking about: Shows the PVS of a cell on hover in the map editor.29 Aug 2026 16:18 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3muabqffgp22ihttps://bsky.app/profile/molecularmusing.bsky.social/post/3muaaaumyy22eRevisited radix sort today for computing exact region-to-region visibility for a PVS. The PVS stores occluded cells, so an empty PVS simply does not cull anything. When computing the PVS in the background, you can "see" it working by draw calls going down and perf. going up :).29 Aug 2026 15:52 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3muaaaumyy22ehttps://bsky.app/profile/molecularmusing.bsky.social/post/3mtt5afcnt22oGTFO! Update your gosh darn crap UI instead of adding another layer of crap to your platform! I want to tear this all to pieces.24 Aug 2026 10:53 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mtt5afcnt22ohttps://bsky.app/profile/molecularmusing.bsky.social/post/3mtobfqw5vc27Imagine sitting on Ultima and WC. Great IPs. [contains quote post or other embedded content]22 Aug 2026 12:24 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mtobfqw5vc27https://bsky.app/profile/molecularmusing.bsky.social/post/3mtkzhjlkvc2cCoupa is still an incredibly shitty platform. It's unbelievably bad, yet several major companies use it and force you to use it. Sigh.21 Aug 2026 05:24 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mtkzhjlkvc2chttps://bsky.app/profile/molecularmusing.bsky.social/post/3mtfaf2sv7k2eThere's a pattern that keeps coming up and I don't know if it has a name, but I wanted to share: Nothing fancy really, just a way of shoving arbitrary funcs (including capturing lambdas) into ordinary func pointers without needing any inheritance or allocation. E.g. ThreadPool:18 Aug 2026 22:12 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mtfaf2sv7k2ehttps://bsky.app/profile/molecularmusing.bsky.social/post/3mt6z756gr22ysad_panda_face :(. But it's my own fault really. [contains quote post or other embedded content]16 Aug 2026 10:48 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mt6z756gr22yhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mt5jze44t22yI was working on something today that made me realise just how profoundly different working with hot-reload for *everything* (assets & all code) is. I often hear people say "my compile times are short, I don't need it" and I think they're missing the point. Thread:15 Aug 2026 20:43 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mt5jze44t22yhttps://bsky.app/profile/molecularmusing.bsky.social/post/3msxswgovds2xSometimes you have to profile debug builds, and as always @superluminal.eu is perfect for that. My matrix multiplication was using variables on the stack, which caused a lot of stack checks. Rewrote the code, debug performance went from 23ms to 6ms.13 Aug 2026 14:07 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3msxswgovds2xhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mssdhkidqs2qOf course I missed an edge case in the previous 2.11.3 update. It's really hard not to, there are so many variables to the equation. [contains quote post or other embedded content]11 Aug 2026 09:47 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mssdhkidqs2qhttps://bsky.app/profile/molecularmusing.bsky.social/post/3msqwpw2acc2uIf you don't have an anxiety disorder yet, just watching The Bear might give you one. (Started Season 5...)10 Aug 2026 20:26 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3msqwpw2acc2uhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mslsorcobc2zNow that is a great ide which I'm totally not going to steal! [contains quote post or other embedded content]08 Aug 2026 19:31 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mslsorcobc2zhttps://bsky.app/profile/molecularmusing.bsky.social/post/3msi2w42tsc2bTwo things that would be nice: NVIDIA providing public symbols for their drivers. NVIDIA not having their drivers bring up more than 100 threads on my machine.07 Aug 2026 07:47 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3msi2w42tsc2bhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mshvrtpxmc22People know that I care about performance, especially since we've almost collectively forgotten how fast our machines actually are (except for a few people that *do* care - you know who you are). This now sits at 720ms in a master build. Thread with optimizations: [contains quote post or other embedded content]07 Aug 2026 06:15 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mshvrtpxmc22https://bsky.app/profile/molecularmusing.bsky.social/post/3ms72gllhmk2xFunny comparison: by the time I have completely finished loading everything (full world state, all assets) and brought up the game, editor and Live++, UE5 hasn't even brought up its splash screen ;). Still love working on my own tech. [contains quote post or other embedded content]03 Aug 2026 17:45 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3ms72gllhmk2xhttps://bsky.app/profile/molecularmusing.bsky.social/post/3ms6yjst52c2zLoading all 1.6GB of current assets (textures & meshes) in 570ms on my 10-year old machine (with a 2080 Ti) using IOCP and unbuffered async reads. Happy for now with this! Final optimization for deployment: loading from a single compressed archive instead of N files.03 Aug 2026 17:11 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3ms6yjst52c2zhttps://bsky.app/profile/molecularmusing.bsky.social/post/3mrrkra2hac2vI found one more thing and got it down to ~20ms. This is slightly more than one frame when running at 60FPS. Here's a video showing it in action. I intentionally click on "Start Without Debugging" so you can see the time it takes for the window to appear. [contains quote post or other embedded content]29 Jul 2026 09:00 +0000at://did:plc:xmxgkkpu6hadddee3g3optf2/app.bsky.feed.post/3mrrkra2hac2v