James was always a clever little sausage !

Yeah, basically scan-line based interrupt driven colour changes, also had an Amiga and was part of Pseudo-ops demo crew on there so was constantly trying to create the same effects on the ST that I created on the Amiga demos

There's about 20 different screens in the demo (I think the vid only shows 1 or 2) but you have to find your way through the maze of rooms, we nearly won an award for the demo but people got so frustrated with trying to find the rooms it lost out 😭, oh well , you live and learn 😅

Was indeed from Cadaver by The Bitmap Bros. and I think I nicked the unicycle from an Amiga Format cover disk in the early 90s where Bullfrog had a programming tutorial with a unicycle, little did I know that I'd be lucky enough to work there several years later as a Technical Director

I loved this game so much I hacked it to grab the GFX to use in one our megademos on the Atari ST youtu.be/M09Bd8y3B94?...

I feel your pain, a streamer played my God Game and the action for digging up mana was super slow, they were saying "god I wish this was faster" and I, almost crying "that's not how it should be , it should be faster !", stayed up late fixing the bug, was due to ultra high refresh rate monitors !

Wow , haven't seen this before on the GBA, really impressive stuff !

Just finished getting a variation of this to work on my planet tech for the next iteration of my game, so happy I now have superfast PCG (not as fast as yours as I also have to calculate the physics & pathfinding info) but can still PCG the entire planet in around 32 ms on a 980 Ti #procgen #meigigu

I spent some time creating some tech on the GBA to get my own version of this but stopped it once I got hooked into writing the voxel landscape tech for 4X4 Offroaders on the GBA

You and me both, started on the trusty Philips Videopac G7000 (Magnavox Odyssey 2) with an odd computer programmer cartridge

Use the geometry shader and you can pass over 1 vert per particle and then in the GS create a camera aligned 4 vert particle

My game engine is predominantly single threaded, although my audiocapture, audiostreaming, opusstreaming and LUA script parsing systems are in separate threads. However most of my game logic nowadays is performed on the GPU through compute and that is massively parallel