Delbrots @ NMF 2013

Posted on by
Reply

With our Mandelbrots noise side project Delbrots and the Man I played at Network Music Festival 2013 in Birmingham. It was a little strange to do a really loud set on a Sunday at about 4pm, but Glitch Lich played before us, so it wasn’t that bad.

I made some simple code visualization for it using Quil. I still didn’t have time to figure out how to get it in full screen mode, so i put some tape on the projector instead (you can still see the title bar a bit). The whole thing looked a little like that:

Delbrots and the Man FTW!

(Thanks to Antonio for the awesome photo!)

Continue reading →

Extempore setup on Mac OS X 10.8

Posted on by
Reply

These are some instructions on how to get extempore and some external libraries running with Mac OS X 10.8.

Extempore

Get a binary from the github page. Also clone the project and place the extracted binary in the root directory of the cloned repository. Just execute the binary in a terminal.

SOIL

Clone my version and build with cmake.

Horde3d rendering engine

Get svn version as the last version (1.0.0-beta5) won’t build in Mac OS 10.8:

svn co https://horde3d.svn.sourceforge.net/svnroot/horde3d/trunk horde3d

Build with cmake:

cd horde3d
mkdir build; cd build
cmake ..
make
# no make install, so just copy frameworks to the appropriate places
sudo cp -R Horde3D/Source/Horde3DEngine/Horde3D.framework /Library/Frameworks/
sudo cp -R Horde3D/Source/Horde3DUtils/Horde3DUtils.framework /Library/Frameworks/

Set new-horde to #t in libs/external/horde3d.xtm.

In the horde3d_knight.xtm example, the horde resources_path should point to

(bind-val resources_path i8* "/path/to/svn/repo/Horde3D/Binaries/Content")

Also you have to replace the h3dAdvanceEmitterTime function by h3dUpdateEmitter and you have to add a call to h3dUpdateModel in the mainLoop function, e. g. here:

(h3dSetModelAnimParams _knight 0 (* (dtof (* 0.5 _at)) 24.0) 24.0)
(h3dUpdateModel _knight 1) ;; make the knight move

Then happy knighting :)

Bullet physics engine

Install it with brew, but make sure you build the shared libraries:

brew install bullet --shared --build-extra

Set _extended_bullet to #f in libs/external/bullet.xtm. The example currently doesn’t work without the _extended_bullet functions.

KissFFT

Just follow the instructions in the library file ( libs/externals/fft.xtm ).

Assimp

Install with brew.

Random jpgs with SuperCollider

Posted on by
1

Hellocatfood just
described how to create jpgs in puredata. Here is a quick port of his solution to SuperCollider:

~jpgheader = Int8Array[255, 216, 255, 219, 00, 132, 00, 03, 02, 02, 03, 02, 02, 03, 03, 03, 03, 04, 03, 03, 04, 05, 08, 05, 05, 04, 04, 05, 10, 07, 07, 06, 08, 12, 10, 12, 12, 11, 10, 11, 11, 13, 14, 18, 16, 13, 14, 17, 14, 11, 11, 16, 22, 16, 17, 19, 20, 21, 21, 21, 12, 15, 23, 24, 22, 20, 24, 18, 20, 21, 20, 01, 03, 04, 04, 05, 04, 05, 09, 05, 05, 09, 20, 13, 11, 13, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 255, 192, 00, 17, 08, 01, 224, 02, 128, 03, 01, 17, 00, 02, 17, 01, 03, 17, 01, 255, 196, 01, 162, 00, 00, 01, 05, 01, 01, 01, 01, 01, 01, 00, 00, 00, 00, 00, 00, 00, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 16, 00, 02, 01, 03, 03, 02, 04, 03, 05, 05, 04, 04, 00, 00, 01, 125, 01, 02, 03, 00, 04, 17, 05, 18, 33, 49, 65, 06, 19, 81, 97, 07, 34, 113, 20, 50, 129, 145, 161, 08, 35, 66, 177, 193, 21, 82, 209, 240, 36, 51, 98, 114, 130, 09, 10, 22, 23, 24, 25, 26, 37, 38, 39, 40, 41, 42, 52, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 01, 00, 03, 01, 01, 01, 01, 01, 01, 01, 01, 01, 00, 00, 00, 00, 00, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 17, 00, 02, 01, 02, 04, 04, 03, 04, 07, 05, 04, 04, 00, 01, 02, 119, 00, 01, 02, 03, 17, 04, 05, 33, 49, 06, 18, 65, 81, 07, 97, 113, 19, 34, 50, 129, 08, 20, 66, 145, 161, 177, 193, 09, 35, 51, 82, 240, 21, 98, 114, 209, 10, 22, 36, 52, 225, 37, 241, 23, 24, 25, 26, 38, 39, 40, 41, 42, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 130, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 226, 227, 228, 229, 230, 231, 232, 233, 234, 242, 243, 244, 245, 246, 247, 248, 249, 250, 255, 218, 00, 12, 03, 01, 00, 02, 17, 03, 17, 00, 63];

~jpgfooter = Int8Array[255, 217];

(
f = File.new(“test.jpg”, “wb”);
f.write(~jpgheader);
100.do{f.write(({255.rand}!1024).as(Int8Array));};
f.write(~jpgfooter);
f.close
)

(
f = File.new(“test.jpg”, “wb”);
f.write(~jpgheader);
f.write(
100.collect{ |i|
500.collect{ |j|
(j%i)%255 * rrand(0.9,1.1)}.sort.mirror2;
}.flop.flatten.as(Int8Array));
f.write(~jpgfooter);
f.close
)

“open test.jpg”.unixCmd

result of the second process

Thunderbird 5 folder pane and Mac OS X 10.7 (aka Lion)

Posted on by
4

Due to the new window resizing feauture of Lion, there is as strong possibility that one can’t get the folder pane back in Thunderbird if it snaps shut (because you will resize the window, not reopen the pane at the left border). One can re-enable it by editing the file in session.json in the profile directory (~/Library/Thunderbird/Profiles/*.default/session.json) and replacing “folderPaneVisible”:false with “folderPaneVisible”:true. This should probably be done with Thunderbird closed. Upon reopen, the folder pane should be back.

Hopefully this will be fixed in the next Thunderbird version…

Synced PDF-Viewer for Emacs TeXing on the Mac

Posted on by
Reply

As I was quite annoyed with Preview’s slow reload time, I found SyncTeX.
With it, one can sync CarbonEmacs and many other editors with the PDF-viewer Skim. Skim thus allows you to shift-command-click in the PDF and it will take you to that exact line in the .tex-file in your editor of choice. Nice! Just don’t forget to start the emacs server (M-x server-start) and ensure that the right emacsclient binary is in the $PATH or the Skim settings… and then: happy TeXing :)

Cleaning up (I): PD Minesweeper

Posted on by
Reply

As part of a stupid bet, 2.5 years ago cappel:nord, a max user and me tried to clone minesweeper in our then-weapon of choice (supercollider, max and pd). cappel:nord/supercollider was fastest, but I managed to get a 10×10-version together… As I wasted some hours on this, I want to document it here to ensure, that if in the future someone claims to be the first to implement minesweeper in pd, I can point to this blog post :D

There are still some bugs and the code could probably be better, but it was fun :)

You need pd+zexy or pd-extended for it. Here is the code: pd-minesweeper.pd

Revisiting pd and…: something changed!

Posted on by
Reply

Never saw that one coming: pd 0.43 has support for gui plugins written in tcl. You can find them in an extra category on the homepage and can install them like normal externals and helpfiles!

A recent addition to this is an auto-complete plugin… this was done in DesireData, an alternative gui for pd, but the project somehow never went anywhere as far as I could tell.

I’m really happy that such additions are finally possible in the main distribution and hope that some exciting plugins will be created, perhaps making pd a more pleasant experience to use without so much mouse wiggling.

What I also found in my search for effective pd livecoding techniques (i found nothing…) was a performance by jeraman named “Ada 2.0″, which is visually really nice and sounds better than I imagined from the concept. He uses a library called pyata, which he wrote, to manipulate pd objects from within python. I haven’t tested it, but it sure looks interesting and it’s nice to know that something like this exists :)