Hey folks,
Im doing some research into live drawing/music performance, as part of this i am building examples in pd, vvvv, max etc... So far i have pd working with a graphics tablet and have built a basic drawaing application allowing you to draw to a window, erase things etc... Now, here's my problem, the way i am doing the drawing bit is by switching buffering off on the gem window, so i can just move a circle around and it draws lines. This is the easy way to do it, but its not good enough... my plan is to be able to draw something, then allow the movement of that object to be controlled over midi, however, this would obviously not be possible as the window would have buffering turned off, so it would just draw crazy ass mess when a finished drawing was moved across the window. The only way around this i can think of is to come up with another way of doing the drawing, i.e. one that doesn't involve turning the buffering of on the gem window....

ok, long post... any ideas people? or examples of drawing tools done in pd or vvvv?

thanks in advance

bd

Anyone know how to get the HID objects to work in the extended build for osx? I can get the main one up but don't seem to be able to get access to [joystick] etc... no matter how much i fiddle about with paths...

Any ideas anyone?

Hi, anyone got pdp working with "pd-0.38.4-extended-RC6" ?

All the files seem to be in the correct place, but im getting this error message :

/Applications/Pd-0.38.4-extended-RC6.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin: dlopen(/Applications/Pd-0.38.4-extended-RC6.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin, 10): Library not loaded: /sw/lib/libgsl.0.dylib
Referenced from: /Applications/Pd-0.38.4-extended-RC6.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin
Reason: image not found
pdp: can't load library

its really doing my nut in so any help would be much appreciated....

cheers

b&d

Unable to find a pre compiled version of Ben Bogart's "Chaos" externals I am now left with the task of compiling it myself. Does anyone have any knowledge about doing this for OSX?
Anyone who has pre-complied would be great, but also it would be nice to know exactly how its done for future reference.

cheers
d

ok, this is a little off topic but...

I have some AVI files i need to play using pd. I am using a mac with OSX so I can't open AVI's on it... What I really need is something to convert .avi too .mov.

Any ideas anyone?
Or even another lib that might play divx avi's on OSX?

Thanks for reading,
d

Hello,
Having problems with the pix_movie and film objects... They are looping the movies in auto mode and not sending out a bang from the right outlet when they hit the last frame. Wasn't happening before I put GEM 0.90 on to my mac, running pd 0.39-1.

Anyone else got this problem?
Its a bit of a problem the movie loops indefinatly...

Hello,
I am looking for examples of a sandpile generator abstraction in GEM. Any links to fractal system abs would be much appreciated.
Good to see the forum is back

yeah man, that is pretty nice!
Helps that your original image is pretty neat, i would like to know how that was created.

And yes, its a shame more GEM patch's don't get spoken of on here. I myself have used it for a number of multi media projects over the years. The development of gem however seems to have slowed to a halt as people have moved over to vvvv, jitter, or taken the plunge and delved into C++ and programing OpenGL straight rather than using a wrapper such as GEM.
Its a shame really cos for a beginner their are not many examples of interesting GEm patchs on the web, and its a great way to learn the basics of OGL rendering.
Well done for posting something that looks cool and is easy enough to follow

n

brilliant Obi
As usual you come up with the goods within 24 hours.

erm, i might be getting the wron end of the stick, but if you want an array like the one in yr linked picture you can just pass a sine wave into it using osc~ and tabwrite~

the closest thing to what yr talking about i can find is Vbap (http://www.acoustics.hut.fi/software/vbap/Pure_Data/)

However, I have not had much joy with this at all. By joy i mean the the exact opposit to my speakers being silent. However, you may be more adept at these things

I am currently making a surround sound mixer abstraction in pd for use in a live performance. Basicly it has a grid you can pan around and a series of preset movements, plus a way to record those movements. I can send it you when its finnished if its any help. It won't be containing any clever doppler or azimuth stuff im affraid, thats waaaaay over my head. (you see what i did there, a bad ambisonics pun.....god i need to get off this computer)

bd

yeah, the weird thing is there is no sw/lib in this version... I tried creating one but that still failed.
All rather frustrating really... I guess i should get round to upgrading the pc i have... macs eh?...grumble grumble....

The delay setting you speak of is a buffer size, so it has in a division the computer can work with easily otherwise it will make all sorts of crazy interpolation distortion that sounds kinda like ring modulation. Try out 50, 25, and 15. With ASIO you really should be able to get down to 25 which is pretty acceptable.
hope you have more luck with those _

you can change your latency in the sound pref panel. I get 15ms with an ASIO motu. Not sure why the buffer size is reseting...

Yes indeed
But that is a very novel way of doing it without GEM, nice one dude! Totally never thought of that.

Depends exactly on what you want to do, but your best bet is to check out the GEM library for pd, this allows you to hook up webcams etc and there are some examples of video analysis in the help files, including a motion tracking example, this is probably the example of most use to you as it shows basic examples of tracking light levels etc, this data can obviously then be used to control whatever sound sources or sythesis parameters you wish. For interactive stuff pd has some conditional switchs such as [spigot] [route] and [select] that are useful for making game logic.

Hope this is useful, post a more specific question if you want anymore info

good luck

You could send a {buffer 1} message to the [gemwin] so it never clears frames, then set up a metro on [gemhead] to control frame rate. Then you can just move a any shape around the screen using [translateXYZ] and it will create a line, so if you use a very small square or whatever then it would be just like an etch-a-sketch. Sending a bang to [gemwin] will clear the screen, like shaking the etch-a-sketch.
hope that helps you

PS...anyone who has any other ways of doing this please reply as im intersted in a way to do it without turning the buffer off......

for an even more hectic effect with no control at all you can turn the buffering to 0 on the gemwin object. Then pass a metro to gemhead to control frame rate. This will make it so the screen never clears, unles you bang gemwin.

not big, not clever, but hey its a nice old school effect

all working fine mate.
nice to see some added functionality on the site

cheers