osci-render VS Soundflower

That said, you’d probably do just fine with Osci-Render and a virtual oscilloscope. Heck, you can get a cheap CRT tv and mod it to be your own xy oscilloscope, then take a video of the screen for less than some freelance artist fees.

I am the developer of a synth written in Java that is currently a standalone program that I'd like to turn into a VST. There are in theory VST wrappers for Java, the most well-known one being jVSTwRapper, but these are very old and unmaintained and only support 32-bit Java 8 and VST2. My synth is using 64-bit Java 19, so there's clearly a disconnect. I'm assuming it's a lost cause trying to get this to work with my project. If it's at all relevant, my synth uses JavaFX for the GUI.

I'm using software called osci-render https://github.com/jameshball/osci-render to render the SVG and then just Google "tf2 logo SVG" and you should find what you need :) As for the MIDI I just found that by googling again. You'll need to use something like MIDIMapper and LoopBe Internal MIDI or a DAW to route it to osci-render :)

You can find osci-render here: https://github.com/jameshball/osci-render download it from here: https://github.com/jameshball/osci-render/releases/tag/v1.32.0 and there's some documentation here: https://github.com/jameshball/osci-render/wiki

do you want to use mostly graphics input? https://github.com/jameshball/osci-render

It's really quite easy! The one thing you need to know how to use is osci-render, which you use to get the shapes in the first place. I can make a quick tutorial for that if you want!

If you're on a Mac, there's Soundflower. Though, according to their site, it hasn't been updated for Apple silicon yet.

For Snow Leopard you should have a look at Soundflower. It's the OG tool for recording desktop audio output, and should still work on Snow Leopard (if the version linked doesn't work then you can try building the version from 2008 in the command line, it doesn't seem to be too complicated).

For Windows: VB-Cable (https://vb-audio.com/Cable/) For Mac: Soundflower (https://github.com/mattingalls/Soundflower/releases)

Intel Mac → Soundflower: this virtual audio device will route one app’s audio to another

The first really cool software was Soundflower, but that seems to be limited to Catalina.

If Blackhole isn't working, or you've an older system, instead try Soundflower and follow these directions - even though they're old as grit, it lays out the basics of what you need to do the clearest.

Soundflower is open source but looks a little janky and doesn’t work with M1s yet.

For Mac: install SoundFlower

Install Soundflower from https://github.com/mattingalls/Soundflower/