My favourite coffee shop is open again, here in York, so I'm getting back into my routine of an hour or so of progress over morning coffee. That said, I really just integrated the synthesizer and graphics this week. It is nice to have the graphics code up and running again, even if I will be changing it when I get chance.

I heard a click at around 2:01. Are you still hunting down those issues, or might that have just been a hiccup in the video capture?

Mostly I only hear these when recording these days; I think they are slowly going as I find and fix memory allocations or other stalls on the audio thread; I know of a few places where things aren't properly fixed yet - one in particular to do with the audio processing causing a lock. I found one major cause which was to do with the mixer in the audio path doing the wrong math; that helped a lot with odd sound transitions I was hearing. If you notice, this video was recorded at 500 fps for the graphics, with my video from the webcam, and OBS running on the same machine on a 4K display. To add to that, my machine is 'only' an i7 4 core. I don't mention it in the video, but I also have this app mostly working on Mac. It will be interesting to compare it, since the MBP is a top spec macine. Ultimately, performance work is ongoing and will be more focused as I move towards open sourcing everything.....

Wow, this is awesome!

This is really, really cool! Totally awesome!!

really great progress, congrats!

Fun project! :) If you have the time, I'd be interested in reading something some comparisons (in terms of your goals) with Extempore: https://en.wikipedia.org/wiki/Extempore_(software)

Thanks all for the encouraging feedback! @Jack Rusher If I'm honest, I'm just following my nose and having fun. This is a side project for me, intended to be released as an OpenSource app, and a single install executable on Mac/Windows/Linux (though perhaps not initially on all platforms). If you're asking what I would like it to be: • A shader development IDE, featuring GL, Vulkan, DX12. I want it to be easy to, say, test a hardware ray tracing shader, or develop a new effect. Currently I support GL, but there are substantial portions of Vulkan/DX12 written. I work in graphics, so there is overlap with things I've done before here. • A music language research and development IDE. Initially supporting something like Ixi lang. I have considered Extempore-like functional scripting too. • A live coding/performance tool. Single Install. Code a performance. Longer term, I'd love to play a bit with VR. I've long been thinking about the idea of building a performance in a 3D space. Everything you see in the tool is rendered using the graphics API; including the text editor (which, though I haven't gone into it too much, is designed to support inline graphics to represent code elements.). That stuff is pie in the sky though. I have a full time job, and this project fits around that most of the time; and that generally means that I bursts of productivity and then rest, depending on work volume....

I look forward to watching this grow 🙂

extempore is really cool and would like to look into it again soon. A few things that took me time to learn the last time in case it helps someone: • I'm pretty sure the scheme version used is R4RS, before finding that out it was driving me crazy why it used define-macro vs define-syntax. Also I don't think it has a match macro built-in, but I may be wrong. Here's a nice intro on R4RS. • Many of the examples failed on my sys because of missing C/C++ libraries. When I get back to it VCPKG seems like a good xplatform way of getting those dependencies.

I thought they used a custom scheme. Maybe not. After a couple attempts I managed to get it working on Windows, will have a play. One thing that stands out is the pattern language stuff they’ve done recently. I could certainly offer something similar...

extempore is a mix of two languages in one, one of them is R4RS Scheme, and the other is call xtlang I think, which is a dialect of scheme that compiles to machine code through LLVM