Can you clarify? Do you want Max as the ReWire host or your DAW? If you want your DAW as the host then are you trying to send automation data from that to max? Or are you just wanting to automate parameters within max as you play a sound or sound file?

GW

I apologize. That was a really unclear post, reading it back.

I want the patch I've made to act like a plugin to the ReWire host. (Reaper, in this instance.) I've made a swirly pad kind of sound, and I want to automate the pitch and a couple of other things. Got the faders in the patch working, but I want to be able to automate their levels through Reaper.

If it was just volume and panning I wanted to automate, I could bounce it then do it, but there's a clicky sound in it which I want to speed up, so it needs doing pre-bouncing.

well, there is midi. not quite a high resolution, but at least something.

you can send OSC ( open sound control) from reaper to max, osc is like midi but has a huge range of steps. millions i think ...i lost count.

OSCglue is a plugin you can insert on a track on reaper and automate sliders on that plugin as you would any other plugin , however as you do this,OSC is sent out of a UDP port you can channel this UDP data into max...you receive the data via udpreceive and then use OSC externals (max objects) to convert that data into usable max data bangs and number streams. for controling the faders in your maxpatch.

not sure if OSC objects come as standard in the new max5...if not,download the externals from http://cnmat.berkeley.edu/patch/4059

oscglue will get osc out of reaper. http://vvvv.org/documentation/oscglue You may need to be connected to a lan hub or other PC for osc to work?

i got it to work a while ago....i also played around with turning my maxpatch into a plugin and a VST instrument using pluggo! cool eh?. yep, that worked too. but you need to use max 4.6, I think to export your patch as a plugin or instrument?...for some weird reason they stop that in max5. grrrrr.

try osc glue ...you may need to reduce the amount of steps it sends ..as it fires a ton of info at you ...unlike midi 127.

anyway it is possible..can be head scratching at times.

midi is less demanding and easier..you would need a type of midi patch program so that both max and reaper can see the same midi ports. I do not have any names as i am away from my main machine , darn it. but i have made that work too..i shall post a link when i can.

http://maplemidi.com/ is a vitual patch of midi data between almost any midi application

for xp

and this one is very good , a little harder to set up perhaps?

http://www.midiox.com/index.htm?http://www.midiox.com/myoke.htm