A suggested fix would be to replace:

private ShapeRenderer shapeRenderer = new ShapeRenderer();

with

private ShapeRenderer shapeRenderer;

And adding method:

    @Override
    protected void setStage(Stage stage) {
        super.setStage(stage);

        if (stage != null && shapeRenderer == null) {
            shapeRenderer = new ShapeRenderer();
        }
        if (stage == null && shapeRenderer!= null) {
            shapeRenderer.dispose();
            shapeRenderer = null;
        }
    }

I didn't review any other widgets, but I suspect they might have similar issues - not disposing of resources, that could be fixed in the same way.

System:

• Ubuntu 18.04 (Ubuntu 18.04.3 LTS)
• Java: jdk1.8.0_144 (official from oracle)
• Talos version 1.0.5

Steps:

1. Add Emiter Node.
2. Add Particule Node.
3. Add Color Node.
4. Connect Color Node to Particle Node at Drawable input.
5. Talos Crashes with this traceback:
   java.lang.ClassCastException: com.rockbite.tools.talos.runtime.values.NumericalValue cannot be cast to com.rockbite.tools.talos.runtime.values.DrawableValue at com.rockbite.tools.talos.runtime.values.DrawableValue.set(DrawableValue.java:20) at com.rockbite.tools.talos.runtime.modules.Module.fetchInputSlotValue(Module.java:104) at com.rockbite.tools.talos.runtime.modules.ParticleModule.getDrawable(ParticleModule.java:85) at com.rockbite.tools.talos.runtime.Particle.update(Particle.java:80) at com.rockbite.tools.talos.runtime.ParticleEmitterInstance.updateParticles(ParticleEmitterInstance.java:163) at com.rockbite.tools.talos.runtime.ParticleEmitterInstance.update(ParticleEmitterInstance.java:142) at com.rockbite.tools.talos.runtime.ParticleEffectInstance.update(ParticleEffectInstance.java:60) at com.rockbite.tools.talos.editor.widgets.ui.PreviewWidget.act(PreviewWidget.java:255) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Group.act(Group.java:49) at com.badlogic.gdx.scenes.scene2d.Stage.act(Stage.java:222) at com.badlogic.gdx.scenes.scene2d.Stage.act(Stage.java:186) at com.rockbite.tools.talos.TalosMain.render(TalosMain.java:120) at com.badlogic.gdx.backends.lwjgl.LwjglCanvas$3.run(LwjglCanvas.java:265) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) at java.awt.EventQueue.dispatchEvent(EventQueue.java:726) 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)

Hello,

It is not clear how to import the Talos runtime into a libGDX Gradle project. This is typically listed in the README file of the project with other GDX related libraries. I was able to figure it out through some sleuthing, but I find it hard to believe that most people have tested your library beyond just using the editor. Thank you for your consideration.

Hi there,

I want to rotate a complete ParticleEffectInstance dynamically by a certain degree during runtime in a libGDX program.
What would be the best way to achieve this?

Thanks

Hi

Im unable to figure out how to apply gravity in the effect I am creating. I can see that there was a gravity property in Particle node some time ago, but now it has been removed. Also if I try importing libgdx legacy effect, the gravity settings are not being imported.

Could you please advice. Do you have any sample hot to do it.

Thank you very much.

Also tested via Browserling to confirm I'm not IP-banned. No dice.

Not sure there's much hope of it getting fixed on the website when its footer says copyright 2019 and has placeholder anchor links for the Instagram, Pinterest and Behance pages, but this repository looks alive enough.

I launched the jar on macOS Catalina and it shows a black screen. Downloaded the repository and launched it through android studio and was able to trigger click events etc. but see only a black screen. I have many libgdx projects, the old particle editor and the demo vis-ui work on my macbook. Am I missing something?

Shift select modules
Selection, multi selection move
Selection copy
Deselection

Group background (name group)

Hello,

Zooming the main node display results in the text being unreadable. Characters can be distorted or completely missing depending on the zoom level. This is particularly challenging because the window does not seem to have a button to return to 100% zoom. I imagine this can be resolved with some sort of FreeType or Distance Field solution. Thanks for looking into this.

Project interface refactor

Samples,
defaults

Hi
Any plan for jMonkeyEngine support?

Hello,

It appears to me that Talos is not ready for HTML5 support (and also mobile support). Besides missing the typical gwt.xml files, the runtime project depends on Java AWT and other uncompilable classes. Please see the following:
https://github.com/rockbite/talos/blob/master/runtimes/talos-libgdx/src/com/talosvfx/talos/runtime/ScopePayload.java#L24
https://github.com/rockbite/talos/blob/master/runtimes/talos-libgdx/src/com/talosvfx/talos/runtime/script/ScriptCompiler.java#L24

Is this in the roadmap for the project? This is an absolute necessity if you want Talos to be considered as a full replacement for the vanilla particle system. Thank you.

Set multiple paths to look for images

Hi, when I try to open Talos on my mac I get this error:

java -jar talos.1.2.0.jar
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.lwjgl.glfw.GLFW.glfwCreateWindow(GLFW.java:1842)
at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.createGlfwWindow(Lwjgl3Application.java:450)
at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.createWindow(Lwjgl3Application.java:394)
at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.createWindow(Lwjgl3Application.java:380)
at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.(Lwjgl3Application.java:108)
at com.talosvfx.talos.TalosLauncher.main(TalosLauncher.java:32)
Caused by: java.lang.IllegalStateException: GLFW windows may only be created on the main thread and that thread must be the first thread in the process. Please run the JVM with -XstartOnFirstThread. For offscreen rendering, make sure another window toolkit (e.g. AWT or JavaFX) is initialized before GLFW.
at org.lwjgl.glfw.EventLoop$OffScreen.(EventLoop.java:39)
... 6 more
AL lib: (EE) alc_cleanup: 1 device not closed

ezpz

Repro:

1. Have the shader.tsh file in different folder (different effect, different shader, same name)
2. Open the first one in editor
3. Open the second one in editor

Result: Two tabs with same shader effect
Expected: Two tabs with two different shader effects - each folder its own shader

My system:
iMac5k, Big Sur 11.2, Quad Core i7, AMD Radeon R9 M295X 4GB

How I start the editor:
java -XstartOnFirstThread -jar talos.1.2.0.jar

The Talos Editor has very GPU usage from the start. GPU usage above 90%. Even with no effect loaded.

If I click in other windows the GPU usage from the Talos editor goes down to under 20%. Clicking the Talos window again and GPU usage goes up.

The GPU usage is independent from the particle effect (empty start template, fire example, beam example) so it seems some editor components are driving GPU crazy when the window is active.

i'm using ubuntu. this issue exists from all the three versions i tried (1.4.1, 1.4.0, 1.2.0)
i open the fire example, i delete the emitter node and the software crashes with this in the console :

Exception in thread "main" java.lang.NullPointerException
        at com.talosvfx.talos.runtime.Particle.getY(Particle.java:140)
        at com.talosvfx.talos.runtime.render.drawables.TextureRegionDrawable.draw(TextureRegionDrawable.java:47)
        at com.talosvfx.talos.runtime.render.SpriteBatchParticleRenderer.renderParticle(SpriteBatchParticleRenderer.java:93)
        at com.talosvfx.talos.runtime.render.SpriteBatchParticleRenderer.render(SpriteBatchParticleRenderer.java:75)
        at com.talosvfx.talos.runtime.ParticleEffectInstance.render(ParticleEffectInstance.java:121)
        at com.talosvfx.talos.editor.widgets.ui.PreviewWidget.drawContent(PreviewWidget.java:324)
        at com.talosvfx.talos.editor.widgets.ui.ViewportWidget.draw(ViewportWidget.java:152)
        at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:124)
        at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:58)
        at com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup.draw(WidgetGroup.java:170)
        at com.badlogic.gdx.scenes.scene2d.ui.Table.draw(Table.java:126)
        at com.kotcrab.vis.ui.widget.VisSplitPane.draw(VisSplitPane.java:296)
        at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:124)
        at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:58)
        at com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup.draw(WidgetGroup.java:170)
        at com.badlogic.gdx.scenes.scene2d.ui.Table.draw(Table.java:126)
        at com.kotcrab.vis.ui.widget.VisSplitPane.draw(VisSplitPane.java:296)
        at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:124)
        at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:58)
        at com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup.draw(WidgetGroup.java:170)
        at com.badlogic.gdx.scenes.scene2d.ui.Table.draw(Table.java:126)
        at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:111)
        at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:58)
        at com.badlogic.gdx.scenes.scene2d.Stage.draw(Stage.java:129)
        at com.talosvfx.talos.TalosMain.render(TalosMain.java:259)
        at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Window.update(Lwjgl3Window.java:403)
        at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.loop(Lwjgl3Application.java:143)
        at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.<init>(Lwjgl3Application.java:116)
        at com.talosvfx.talos.TalosLauncher.main(TalosLauncher.java:33)

Hi There

Is it possible to add the ParticleEmitterBox2D to a Particle Effect Descriptor / Effect Instance ?

https://libgdx.badlogicgames.com/ci/nightlies/docs/api/com/badlogic/gdx/physics/box2d/graphics/ParticleEmitterBox2D.html

Regards
Blaedde

1.4.0
1.4.1

[LWJGL] Failed to load a library. Possible solutions:
        a) Add the directory that contains the shared library to -Djava.library.path or -Dorg.lwjgl.librarypath.
        b) Add the JAR that contains the shared library to the classpath.
[LWJGL] Enable debug mode with -Dorg.lwjgl.util.Debug=true for better diagnostics.
[LWJGL] Enable the SharedLibraryLoader debug mode with -Dorg.lwjgl.util.DebugLoader=true for better diagnostics.
Exception in thread "main" java.lang.UnsatisfiedLinkError: Failed to locate library: lwjgl.dll
        at org.lwjgl.system.Library.loadSystem(Library.java:164)
        at org.lwjgl.system.Library.loadSystem(Library.java:63)
        at org.lwjgl.system.Library.<clinit>(Library.java:51)
        at org.lwjgl.system.MemoryUtil.<clinit>(MemoryUtil.java:100)
        at org.lwjgl.system.Pointer$Default.<clinit>(Pointer.java:67)
        at org.lwjgl.system.Callback.<clinit>(Callback.java:40)
        at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.initializeGlfw(Lwjgl3Application.java:81)
        at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.<init>(Lwjgl3Application.java:91)
        at com.talosvfx.talos.TalosLauncher.main(TalosLauncher.java:33)

This project needs an open source license.

I followed the instructions at https://github.com/rockbite/talos/wiki/Libgdx-Runtime to import the generated particle effect into a Libgdx game. At first I thought I messed up the rendering because I couldn't see any particle effects at all, but I eventually found out that it was just extremely tiny. As a comparison, I imported the fire example into my game, and the fire effect rendered at the same size that the Talos editor would show it at Grid 30, which is basically barely visible. I have it currently rendering in its own batch.begin/end, so other rendering code shouldn't be getting involved.

The demo code at https://github.com/rockbite/talos/blob/master/runtimes/talos-libgdx/test/com/talosvfx/talos/runtime/test/TalosDemo.java uses a strange value for the Viewport. Clearly I'm missing something here, how should I properly configure SpriteBatchParticleRenderer?

Libgdx version is 1.9.14
Talos Libgdx Runtime version is 1.4.0

Hi there,

I am using Maven and I noticed that the talos dependency itself

<dependency>
     <groupId>com.talosvfx</groupId>
      <artifactId>talos-libgdx</artifactId>
      <version>1.4.0</version>
</dependency>

has a dependency on com.github.jitpack:gradle-simple:1.0.

To me that seems strange as it seems to be an example gradle project.

I have not looked at the source code yet, but can someone comment on whether this dependency is in fact needed?

Thanks!