Processing Forum

Processing using single or double buffering?

[5 Replies]
- 16-Feb-2011 10:59 AM
- Forum: General Discussion
Does the software render engine use a single or double buffer method? I know that you do some crazy thing by drawing to I believe a PImage(I may be mistaken on the term) to render. Are you using one or two of them?

Recursion result passing

[4 Replies]
- 30-Jan-2011 07:09 AM
- Forum: Programming Questions
I hope no one minds the PHP short hand. Its just so much less restrictive then writing things like this in Java first. I am having trouble devising the method to pass the result of this function back out. I understand what is happening because the subsequent calls to recursion_trigger() solve in reverse order but can not wrap my head around passing the result back up the stack = / Is there a proper way to do this.
The function is straight forward pass it an array it pops an element of and then increments count then calls it self intill the array is empty.
function recursion_trigger($input, $count = 0){

   if(!empty($input)){

   array_pop($input);

   $count++;

   if(!empty($input)){

   recursion_trigger($input,$count);

   }

   }

echo $count;

return $count;

}

Testing to see if applets are applets.

[2 Replies]
- 19-Jan-2011 09:20 AM
- Forum: General Discussion
I am making a simple plugin for Concret5 that would allow concret users to upload applets to their site by selecting a applet.zip file.

The plugin is almost finished and I was starting to write the test file for uploaded zips. I realized that this might be floating around from the creation of the OpenProcessing web site.

::humbly asks::

Can any one share the php script to test uploaded zip files to see if they are Processing applets? I will make my version but I know it will pail compared to the original.

New Graphics Programming group NJ NY area.

[0 Replies]

05-Jan-2011 10:07 PM
Forum: Events and Opportunities

Imaginary Physics

A Programming and Design Community ImaginaryPhysics
We are a collection of people from programming and design disciplines, working together to aid one another's creative process. Our common interest in aesthetics brings us together and our different backgrounds give us the perspective to improve our work. Our group focuses on teaching and learning.We share encouragement and expertise and hone our skills on group projects.
"The bindi...

Imaginary Physics Meetup
Wednesday, January 19, 2011 at 7:00PM

The weekly general meeting will be about greeting new members, good tea, and good conversation. These meetings will be held in a general public venue. We like to try to inspire new individuals to our group projects.
This meeting repeats every Wednesday unless noted otherwise.

If you are interested in the topics, mathematics, design, or programming, this is a great time to meet people with common interests.

See the full event details, including location, at http://www.meetup.com/Imaginary-Physics/calendar/grndqypcbzb/.

Calling function getClass()

[4 Replies]
- 13-Dec-2010 04:11 PM
- Forum: Programming Questions
Why does calling the function getClass return the name of the sketch and not the object that is calling the function?

Say I am working in a sketch named IReflect

and I have a class called Robots.

If I call my_robot.getClass() it returns the class as being IReflect and not as IReflect.Robots

Something I made with ProcessingJS

[7 Replies]
- 06-Dec-2010 07:56 AM
- Forum: Share your Work
http://www.imaginaryphysics.org/sunphysicshtml/SunPhysics.html

Thank you guys I really understand how much work you do to make it seem like things like this are in reach of people.

Dance

[0 Replies]
- 01-Dec-2010 02:10 AM
- Forum: General Discussion
I got ProcessingJS up and going and its great. I started digging into javascript and its definitely full of unicorns but I am glad to be learning it.

Its going to be amazing when it gets all tied together. Running my android app that just edits a simple text file and then firing it off in an android browser view.

Slick very very slick.

"Thank you from a penguin"

::hug::

Processing JavaScript Constructing objects

[2 Replies]
- 28-Nov-2010 07:09 PM
- Forum: Processing with Other Languages
I knew it a bit of topic for this board but my inexperience with Javascript is showing and I figure this is an easy answer for you guys.

Why can I not construct objects from with in setup and draw?

Teaching an introduction to programming

[0 Replies]
- 11-Nov-2010 08:09 PM
- Forum: General Discussion
I was looking for opinions on good links to fill the prerequisites section of this page. There is no fixed number of links that I was shooting for. In the long run I was aiming to compile a wiki to bring new people up to speed with our group.

open source group

I am also looking to host/link examples of beautiful code. I am open to any suggestions that people think might be unique and special. I am especially interested in things that may have gone unnoticed and need a good home. The simpler the better.

I argued with some Oracle employes....

[1 Reply]
- 05-Nov-2010 01:58 PM
- Forum: General Discussion
Yesterday in Manhattan at a little Java convention they did. They where pushing Java FX because they apparently found out that swing is miserable. They started talking about the difficulties of creating a rendering engine for 3d and extending it to things like opengl while still keeping it script like.

Well I mentioned that I knew this little group from MIT that had done some work in that area.

Over riding escape behavior

[3 Replies]
- 05-Nov-2010 01:53 PM
- Forum: Programming Questions
When some one closes an app using esc can I override the default behavior to call stop()? I ask because I am using minim and want to make sure to close the audio buffers.

Audio reactive sketches

[1 Reply]
- 03-Oct-2010 06:59 PM
- Forum: General Discussion
I have been trowling about looking for papers on analyzing audio signals, does any one know any papers or websites that could help?

I have minim going and that good stuff but I wanted a better grasp of the math and theory.

Algorithmix music composition tool

[0 Replies]
- 08-Sep-2010 11:43 AM
- Forum: General Discussion
Something to check out. I had some fun with it.
http://www.linuxjournal.com/content/algorithmic-music-composition-linux-athenacl

Playing with magnets

[0 Replies]
- 05-Aug-2010 06:46 PM
- Forum: Share your Work
Just some images I rendered out last night morning

Get instance of PImage

[3 Replies]
- 04-Aug-2010 03:40 AM
- Forum: Programming Questions
How do I get an instance of the main PImage?

Fractal generation

[0 Replies]
- 04-Aug-2010 12:32 AM
- Forum: Share your Work
For my friends birthday he loves drawing fractals and I love motion. Its very simple but I think he will enjoy it.
The .tiffs I generated look so much better I have a lot to learn about encoding. Ill post the code for it when its legible.

I learned a lot about fractals from Monkstone's blog
Fractal Blog

Debian/Ubuntu issues running Processing

[4 Replies]
- 30-Jul-2010 01:32 PM
- Forum: Integration and Hardware
For Processing to run on a 32-bit Debian install you must install the proprietary version of Java from Sun.

http://wiki.debian.org/Java/Sun

If you try to execute Processing from terminal and it tells you packages are missing this is why. Neither Processing or Debian is broken so this isn't really a bug. You just have to learn how to set up linux the right way.

Its not like windows or mac no assumption is taken on what you are going to be using your computer to do. ( unless your Ubuntu and you want people do office work :P) So there are some things missing that you assume just come on a computer.

For Debian users with openGL problems

[0 Replies]
- 30-Jul-2010 01:01 PM
- Forum: General Discussion
http://www.debianadmin.com/how-to-install-ati-fglrx-drivers-in-debian-lenny.html

I came across this and remember some people where having trouble getting openGL to work right. This is for AMD peeps.

I myself didn't know you needed a kernel module to enable 3D graphics not just a driver.

Classes and Inheritance

[3 Replies]
- 28-Jul-2010 11:22 PM
- Forum: Programming Questions
/*

I did my best to provide pseudo code to describe my question.

Class spoon exists just so that I can have smoogle and smo reside in the same array and be
different types of objects. I have a place holder function class.get_force() so that when I add smoogle and
smo to sum I can call get_force() on both objects. It calls the over riden version of the method( which I didn't
expect it would do!)

The whole point of this is that though smoogle and smo have the exact same methods they differ in how they
arive at their output. I need to add these objects values together and want I class that handles all of that in the
background.

This is a very important part of what I am working on and would love opinions it's no fun to program on an island.

   Does any one have any alternative ideas to how I should handle this?

   Is this the best way to go about things?
   Is there a more correct way to do this?

   I was very surprised that this example calls the overridden method and not the original place holder in spoon.

   I expected since the array test was of the type spoon it would call the method held in spoon and not the actual objects class.
*/
2. class spoon{
3. spoon(){
4. }
5. int get_force(){
6. return 0;
7. }
8. }
10. class smoogle extends spoon{
11. int force;
13. void set_force(int force){
14. this.force = force;
15. }
16. int get_force(){
17. return force;
18. }
19. }
21. class smo extends spoon{
22. int force;
24. void set_force(int force){
25. this.force = force*force;
26. }
27. int get_force(){
28. return force;
29. }
30. }
32. smoogle smoogle = new smoogle();
33. smo smo = new smo();
35. class sum{
37. int num;
38. spoon[] test = new spoon[0];
40. sum(){
41. }
43. void add_to_system(spoon smo){
44. test=(spoon[])append(test,smo);
45. num++;
46. }
48. int print_sum(){
49. int smo=0;
50. for( int x=0; x < test.length;x++){
51. smo += test[x].get_force() ;
52. }
53. return smo;
54. }
56. }
58. sum sum = new sum();
60. sum.add_to_system(smoogle);
61. sum.add_to_system(smo);
63. smoogle.set_force(4);
64. smo.set_force(4);
66. println(sum.print_sum());
70. /*
71. Originally I used the class below to handle the objects as totally seperate objects.
73. class sum{
75. int num_smo;
76. int num_smoogle;
78. smo[] smo = new smo[0];
79. smoogle [] smoggle = new smoogle[0];
81. sum(){
82. }
84. void add_smo_to_system(spoon new_smo){
85. smo =(smo[])append(smo, new_smo);
86. num_smo++;
87. }
89. void add_smoogle_to_system(spoon new_smoogle){
90. smoogle =(smoogle[])append(smoogle, new_smoogle);
91. num_smoogle++;
92. }
94. int print_sum(){
95. int total=0;
97. for( int x=0; x < smo.length;x++){
98. total += smo[x].get_force() ;
99. }
101. for( int x=0; x < smo.length;x++){
102. total += smoogle[x].get_force() ;
103. }
105. return total;
106. }
108. }
109. */

If Albert Einstein had Processing

[3 Replies]
- 26-Jul-2010 05:26 PM
- Forum: General Discussion
we would have flying cars.

OpenGl PGraphics3D and Processing

[1 Reply]
- 20-Jul-2010 02:41 PM
- Forum: Programming Questions
I have to get some of the dumb questions out of the way sorry. Also my terminology is all over the place so please feel free to correct me.

PGraphics3D is a software implementation of a 3d software rendering library based on most of openGL standards?

and

I was reading through the Processing source code and was a but confused.

// LIGHTING

// We're not actually turning on GL lights right now

// because our home-grown ones work better for now.

// public void lights() {

// super.lights();

// gl.glEnable(GL.GL_LIGHTING);

// }

// public void noLights() {

// super.noLights();

// gl.glDisable(GL.GL_LIGHTING);

// }

How is lighting being handled then when using openGL? I have some understanding of openGL i just finished reading the red book and have been using Processing for some time. I am trying to pick apart how Processing is implementing openGL.

When you switch to using OpenGL what in the rendering process is not being handled by openGL that could be?

Also this was a while ago but some one in the old forum made a post showing the differences in speed when using direct openGL calls. The program was using circle collisions and was just winging out circles all over the place. I searched for it but couldn't find it.

If any one can link me to this post or any other posts where people where demonstrating the speed differences from using native Processing and making calls directly to openGL.

; )

Can I count on -0 ?

[8 Replies]
- 12-Jul-2010 05:35 PM
- Forum: Programming Questions
I am doing the slope equation of a straight line and there are of course 2 special cases involved where the line is vertical and and where the line is horizontal. When the line is horizontal Vertical I was trying to figure out a proper return would be to trigger handling this special case.

I don't really know what the return of Infinity represents,is it a generic Java return or Processing specific?

I would like to keep the function as platform generic as possible.

In the special cause where the denominator is 0 if I can return -0 and let that represent the special case of a horizontal line. Will this also work in C?

Tab management system for Processing

[7 Replies]
- 07-Jul-2010 07:35 AM
- Forum: Library and Tool Development
I am working on a project that is rather large and wanted to know if any one has written an Interface mod to help keep large Processing sketches organized. I know I can move the whole thing into Eclipse but thats over kill.

I really just want to group tabs into other tabs.

Is there a repository of IDE add ons any where?

If there isn't an add on for this yet ;) I bet its time for me to write my 1st one.

Calculating angles

[9 Replies]
- 05-Jul-2010 11:35 PM
- Forum: Programming Questions
I tried using PVectors angleBetween but I was not getting what I expected and feel that I am missing something very basic.

Where can I find the Java Docs now?

[1 Reply]
- 01-Jul-2010 05:23 AM
- Forum: General Discussion
: (

Activity Trend

Imaginary Physics