JWildfire forum

You can reach the official JWildfire forum at https://jwildfire-forum.overwhale.com/

34 comments on “JWildfire forum

  1. Why doesn’t version 2.60.2 render opacity changes? I keep getting bleak undercolored pictures even with background opacity set to 0.

  2. Dear Andreas,

    First of all thank you for your wonderful fractal generator!!
    I started using the Mini app on my tablet two months ago and got hooked extremely fast. Recently I have installed the program on my laptop. My question is, how can I export the flames from the app in order to render them with the main program? So far I only managed to copy the image files, not the projects or the flames. If I upgrade to the paid version there seems to be no guarantee that my flame library is not gonna get deleted and it would be a pity if I lost all the works.

    Best regards,

    • thargor6 on said:

      Hi Mary,
      sorry, but there is no way to export the flame-parameters from the free app because this is the only restriction of the free app. From a technical point of view this was not the best decision, but it is how it was made and cannot be undone.

      Best regards,

  3. Georgeta on said:

    Hi, Can you please help.
    I have downloaded the software but it does not launch. I have a MacBook Air. I have run start_mac.command first. It just open a Terminal window. This is the last part of the message on that window:

    -bash: /Applications/j-wildfire2/start_mac.command: /bin/bash^M: bad interpreter: No such file or directory
    [Process completed]

    If I run j-wildfire-launcher.jar the JWildfire black window opens but it has only one button: Start. If I press this button the window disappears. If I tick the Debug box I get the following in the Message Log:

    java.lang.Exception: Return code was 1 – see below for details:
    at org.jwildfire.launcher.Launcher.launchApp(Unknown Source)
    at org.jwildfire.launcher.Launcher.launchAction(Unknown Source)
    at org.jwildfire.launcher.Launcher.access$100(Unknown Source)
    at org.jwildfire.launcher.Launcher$2.actionPerformed(Unknown Source)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    at java.awt.Component.processMouseEvent(Component.java:6525)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
    at java.awt.Component.processEvent(Component.java:6290)
    at java.awt.Container.processEvent(Container.java:2234)
    at java.awt.Component.dispatchEventImpl(Component.java:4881)
    at java.awt.Container.dispatchEventImpl(Container.java:2292)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
    at java.awt.Container.dispatchEventImpl(Container.java:2278)
    at java.awt.Window.dispatchEventImpl(Window.java:2750)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.awt.EventQueue$4.run(EventQueue.java:731)
    at java.awt.EventQueue$4.run(EventQueue.java:729)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

    Exception in thread “main” java.lang.UnsupportedClassVersionError: org/jwildfire/swing/Desktop : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

    Attempting to launch JWildfire using the command:
    java -Xms256m -Xmx1024m -cp /Applications/j-wildfire2/lib/j-wildfire.jar org.jwildfire.swing.Desktop

    • thargor6 on said:

      Hi, you need Java 7 to run the software ( http://stackoverflow.com/questions/10382929/how-to-fix-unsupported-major-minor-version-51-0-error )


  4. Mihaly on said:

    Hi, Andreas, thank you for the great software. I’m fairly sure this probably actually ISN’T a problem with JWildfire itself, but it occurs in other QT-based programs I have noticed (running on Win8 perhaps thats the real problem 🙁 using Java 1.8 I think) but if you know of any suggestions it might help others.

    What happens is that sometimes the interface will display text either inside a control or on a button, or among various info boxes, it will sometimes partly or even completely disappear, which makes it kind of hard to be sure exactly whether it is saying save here, or instruction.

    As I said I have noticed this in some other programs so I guess it’s either related to the graphics interaction between presumably QT and Win8’s metro/desktop graphics contention. Is it possibly a Java thing? I really don’t know, but it’s kind of annoying and might put people off using what I think is essntially a great fractal piece of software.

    I do not want to raise any arguments here, I’m just saying what I experience, so please don’t get into any MS vs Etc. flam stuff. Any positive suggestions are appreciated – thanks

    • thargor6 on said:

      I didn’t heard from this problem yet, and currently have no access to Windows 8. Maybe it has to do with fonts which are not the exactly the same as before, or some rendering-setting which affects fonts so that they appear slightly larger and do not fit anymore? Did you tried some other theme in JWildfire (some use different fonts when I remember right)?

  5. Suzi on said:

    Hi, I am running windows 7 and installed JWildfire, managed to run it ok and rendered a flame, but for some reason I am unable to see the saved files in the folder where I saved them. If I try to repeat, it asks me to overwrite so they are showing up within the JWildfire UI, just not in windows explorer?

    • thargor6 on said:

      Hi, must be some third-party software (security feature?) you are using, JWildfire does just save/load the files and does nothing special.

      Best regards

  6. Hi, I just discover the program, am using macbookpro, and have installed java 8, but the program ask to locate the java file …I just can’t open the application directory…any idea or how to ?! Thank you so much !

    • thargor6 on said:

      Sry, I do not understand your problem, please describe what you are doing and what is the result, e.g. what is “the program” which is asking to locate a java-file.


  7. lieselotte Zängl on said:

    Lieber Andreas, die erste Donation habe ich von unserer Tochter ausführen lassen, weil ich kein Pay Pal habe. Ich würde dir gerne eine weitere Donation zukommen lassen, wenn ich die Nummer deines Girokontos hätte. LG Lilo

  8. Tom Leparskas on said:

    Just installed JWildfire on 64 Windows 7 machine. Java version 8.
    Error when running start_windows.bat is:

    “Windows cannot find java-w”

    All files are in the same extracted folder.

    Help please.

  9. Fred De Paiva on said:

    Bonjour, je n’arrive pas a installer ce soft sur Ubuntu 12.04,
    Merci de vos conseils et aide.

  10. Dennis Grace on said:

    I’ve reloaded Java, I attempt to open after extracting the JWildfire files and I still get the error message “attempting to launch using …. I don’t know what I’m doing wrong. I had the JWildFire app loaded once previously but had to clean out my hard drive due to an unrelated issue. Do you have any additional ideas? I really miss playing with this app. If you sold it on disk as an install I’d gladly buy it. Help!

  11. Sheleah Nahshon on said:

    What do I need on my computer to run this programm?

  12. SCORPION on said:

    Once the j-wildfire just stopped running. Nothing worked until I found the reason.
    j-wildfire stores the settings to a file located on the way (for Windows 7):
    C: Users Administrator
    There are two files. This j-wildfire.properties and j-wildfile-launcher.properties
    J-wildfire.properties file size was 754 MB!!!
    It is clear that the file can not have this size! Why and how it happened, I do not know. Problem was solved by deleting the files, then j-wildfire running fine. Naturally, render settings and profiles to be done again. But this is one minute …

  13. Valerie on said:

    I need to know how to save my work in what format. Can u help, I love the program.

    • thargor6 on said:

      you must render the image first before you can save it. A dialog box will occur. The images are saved in the PNG format.

      Best regards

  14. Craig Bak ~ 7thDwarf on said:


    This is a very powerful and awesome fractal generator!
    You have built a really easy to use and fun program here, I downloaded and installed it to my Win7 64bit pc and within 10 min I had created and rendered two cool fractals and while I’m writing this I am rendering a video from the program too.

    This has to be the easiest fractal generator that I’ve used so far, I’ve had limited success on other programs, but this one is fast and intuitive, thanks for writing it and keep the good work coming!

    I am headed to my facebook and twitter to spread the news – I will definitely be creating my own gallery of fractals with this cool program, Thanks again.

  15. Peggi Wolfe on said:

    Hi, I downloaded JWire both at home and at work. I run Windows 7 at home and it started up just fine. I run Windows XP at work, and when I click on either the start.bat or the start.jar files, nothing happens. I see the Command prompt window when I start the bat file and I see a animated timer dial, but JWire never opens. Do you have any idea what the problem might be. Also, at home, when I go to save a flame, it doesn’t seem to work right. It doesn’t show a file extension for the file and when I try to click on a folder to save it, the folder doesn’t open. It almost looks more like an Open dialog window than a Save dialog window. Any help on basic navigation in the program would be most helpful! From what I’ve seen of it at home, it looks like a really neat program. I just wish I knew a little more about how to use it.

    • thargor6 on said:

      Hello Peggi,

      the problem with the file folder is a known bug which occurs only if you use Java7. I will fix it as soon as possible. For the meantime there is a known workaround: you must always select the file filter in the bottom area of the folder window – then and only then the window will work as expected.

      There are two tutorials for JWildfire. The first one is very brief and is intended for new users of JWildfire. You find them both at this side (in the pulldown menu above there is a tutorial section).

      If you have problems to start the program you should try to start the j-wildfire.jar-file manually to track down the error. Just open a cmd shell, enter the directory where the j-wildfire.jar file is located and enter the command “java -jar j-wildfire.jar”. Now there should be an error message if things are going wrong. You could make a screenshot or copy the content and mail it me if this error is something cryptic 🙂

      Best regards,

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