Multi-Touch on Windows (SMT and other solutions)

amyro

Hello,

i try to implement a multitouch app on a windows 8 computer with processing and java. I played around with the Simple Multi-Touch Toolkit (SMT) which seems like a good library. Unfortunately i don't get the windows touch backend working. It crashes already at the init method: SMT.init(this, TouchSource.WM_TOUCH);
It says "TuioClient: failed to connect to port 3333" followed by a NullPointerException
Caused by: java.lang.NullPointerException
at vialab.SMT.SMT.runWinTouchTuioServer(SMT.java:1236)

Has anybody worked with SMT on Windows 8 before or can anyone imagine what i missed to get it working?

Otherwise does anyone know another way to implement multiouch with processing? I actually don't really need fancy libraries, i would be happy with a solution that just gives me coordinates of multiple touch points.

Thanks for your help!

amyro

Does anyone have an idea how i could implement multitouch besides the SMT library?

blyk

Honestly saying windows 8 has a lot of problem running third party library for processing.

amyro

:/

edumo_net

Try with other port, sometimes 3333 give me problems at windows.

But, in my test with SMT, when you have 4 or more pointers, the fps goes from 60 to 25 :(

tuio library maybe is enought for you.

good luck :)

paluka

Hi amyro,

Try posting an issue on SMT's GitHub page. We do not regularly search forums for SMT related questions. https://github.com/vialab/SMT

Erik

http://www.erikpaluka.com