Changing properties at runtime - possible? about box2dlights HOT 10 CLOSED

Looking at stack trace - the RayHandler instance passed to PointLight constructor is null. Could you debug or use logging to verify that you are passing the correct initialized RayHandler instance during that lights creation?

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I am most definitely passing a correct, initialized RayHandler.

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Also tried to change the color during runtime in test project - works fine. Could you share some code of actual box2dlights usage in your project, that is not working?

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rayHandler = new RayHandler(world);
rayHandler.useDiffuseLight(false);
rayHandler.setCombinedMatrix(camera.combined);
rayHandler.setAmbientLight(0.0f, 0.0f, 0.0f, 0.0f);
...
a = new PointLight(rayHandler, 1024, Color.CYAN, light, -200, 200);
b = new PointLight(rayHandler, 1024, Color.MAGENTA, light, -200, -200);
c = new PointLight(rayHandler, 1024, Color.YELLOW, light, 250, 100);
d = new PointLight(rayHandler, 1024, Color.MAROON, light, 200, 200);
pl.attachToBody(p.body, 0f, 0f);
pl2.attachToBody(p.body, 0f, 0f);
pl.setXray(false);
pl2.setXray(true);
pl.setSoft(true);
pl2.setSoft(true);
...
public void lightOn() {
new PointLight(rayHandler, 1024, Color.ORANGE, 200, 174, 430); //NullPointerException
c.setColor(Color.BLUE); //NullPointerException
}

Sorry, I'm not really sure how to format it as code here.

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Yeah your code looks absolutely fine. What version of box2dlights are you using?
You can try to find the code difference with box2dlights demo app (in tests - it's 100% working, tried it today).

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It's the latest version... Hm. I'll take a look.
Oh, and, just a question - is there any way to reduce the intensity of the center of a PointLight?
What about reducing how incredibly bright it gets when you stack two together (I have a player light that follows the player and a torch, and if the player goes near the torch, it gets almost too intense to see the sprites).

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What about reducing how incredibly bright it gets when you stack two together

Have you tried using the diffuse light model?

rayHandler.useDiffuseLight(true);

I see you set it to false in your code, is it essential for you?

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The diffuse model, while being prominent in any 3D work I do (not with this engine of course), doesn't seem to work very well with this. It makes shadows appear as circular blobs about half the radius of the actual sprite, which looks dreadful.

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The diffuse model, while being prominent in any 3D work I do (not with this engine of course), doesn't seem to work very well with this. It makes shadows appear as circular blobs about half the radius of the actual sprite, which looks dreadful.

This is quite an important comment, I will investigate it. Unfortunately, can't give you any estimates currently.

Also, about the exceptions, have you found any solution or root cause of it?

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Actually, just today I managed to get it working: instead of calling some of my methods from inner classes and/or objects, I called them directly from the main class and it worked.

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