Recently I have been doing some work with OpenCL and i found myself messing up with old code and re-writing most of it .  At first it was interesting and quite funny but no more, so,  I thought it was time to make things easier for myself and just make things reusable by creating a wrapper which would wrap most of the boring and time-consuming parts. This would be a wrapper on OpenCL for Java and/or Processing. Well, a well known guy named Mehmet “Memo” Akten has done such a wrapper in C++ for the OpenFrameworks and Cinder libraries. I have ported it  to Java.

There are some problems with reading/writing from/to GL textures. For some reason it crashes on me. I have been working with JavaCL‘s author, so hopefully it will be working soon.

:: Download

Download it, install it and try it.
If you find any problems or if you have suggestions, let me know.

Have fun.

I have noticed that OpenCL4Java is on version 1.4beta by now and that my examples were crashing when running on a GPU device. Today i took the time to do something about it. I have downloaded the new version and have updated the examples to run with 1.4beta. Everything seems to work just fine now, if you have a different opinion, please do let me know.

Download: http://victamin.googlecode.com/files/JavaCL_1_4b.zip

Have fun!

I finally took  the time to play with OpenCL. I was motivated by the particle example from Rui Madeira. After speaking with him, he gave me a few other links on more examples like Memo Akten‘s 1.000.000 particles running with mouse interaction on the GPU, the very NVidia’s first OpenCL application example, etc. I was intriged!  So i took the day to play with OpenCL4Java and ported Rui’s example to Java running on Processing’s IDE.  I’ve tested it with a Intel Quad core and i found the Rui’s sample to crash with GTX280 videocard. I didn’t gave it much thought but it might be for that for-loop in the program on the particle-particle iteration. In the other hand, Memo’s example ran easily on the gpu side. I should have made an example of mine, but it was easier to just port their examples and get things running. That was the main goal.

I have only tested this under Windows XP 64bit with ATI Stream SDK and Nvidia drivers. If you find any problem, please report.
One other thing: Memo’s example isn’t the real thing. It’s simply the CL program. So you won’t be able to get all the fuzzy million particles around. Not yet.

Library/Examples available here: http://victamin.googlecode.com/files/OpenCL4Java_1b.zip

Installation steps:
1. Copy the library to processing’s libraries folder
2. Install ATI Stream SDK (i have packed the OpenCL.dll file, still you might have to install the whole pack). If you’re using Nvidia, install the OpenCL drivers and toolkit
3. Open the example and run it.

Enjoy and have fun!

I have tested most of the libraries available for processing able to render video files, but i never was happy. Either it became slow, unstable or just crashing. I wanted something better, so i went looking into JMF (Java Media Framework).

During my research i came across this Pirelenito’s website with a great example on using FOBS+JMF, exactly what i needed. So i  downloaded it and started working on it, putting into it a bit of myself.

So here it is, a first pre-beta version of a library capable of rendering movie files (with sound) with Java/Processing without much effort.

NOTE! I’m still having problems with a couple of codecs like DivX, Xvid, H264. It crashes on me when rendering some of these, but it works just fine for Mpeg4, PhotoJPEG, Cinepak. It isn’t perfect, but if you be careful and use the right format/codec it will go smooth. Meanwhile i will be working on a better version.

Website: www.pixelnerve.com/processing/libraries/moviegl
Library Package(s) at: :  http://code.google.com/p/victamin/downloads/list

Have fun!

Credits goto Pirelenito. Thanks for sharing.

Hurray!

ObjImp + Mri3ds libraries are now officially part of the Processing’s libraries page.
That means more updates and bug fixes.

____________________________________________________________________
Mri3ds v1.2 has been released
* Wrapper data structures moved into the library.
* V3dsScene is now part of the library. Look at the examples on how to load a .3ds scene.

____________________________________________________________________

ObjImp v1.1 has been released.
* Wrapper data structures moved into the library.
* ObjImpScene is now part of the library. Look at the examples on how to load a .obj scene.

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