It depends a lot on what you’re trying to achieve. There are several ways, but I know two:
1. If you’re using Renoise to sequence only (which means all audio is coming out of VCV), you can setup a multitrack recorder inside your Rack, thus saving individual instruments to separate .wav files. You can also record the entire master if you’re doing your mixing in the modular environment. Here’s a tutorial (by Omri Coem):
2 If you wanna record stuff into Renoise, you’ll need Virtual Audio Cable (let’s call it VAC) or any similar software. Then all you have to do is set the VCV output to VAC input, and use the “#Line Input” tool inside Renoise to receive the audio signal. Here’s a pic:
And here’s the patch in action:
The downside in this is that you’re only recording the master output of VCV. If you wanna do multitracking inside Renoise, you’ll need a software capable of running multiple virtual audio cables or channels (up to 8 in the AUDIO-8 module).