Box2D Forums

Try this: In the first demo screen, WorldRadial, select the central Circle80. Press F8 to contain it in a MovieClip so that you can then add a drop shadow. When you run the program now, you should see that the flying blocks pass straight through the circle. Remove the filter and it should work properly again.

Apparently, something about filters causes the position of the contained physics objects to think that their position is off from where it should be.

Hello?

Just tried this, and it worked 100% fine for me. What version of Flash? I ran it in CS4 (because CS5 is currently crashing for me).

By "flying blocks" do you mean the animated ones or the dynamic ones?

Maybe attach a Flash project to your post...

You should see the dynamic blocks fly straight through the central circle. I was flummoxed for a while how to make a reliable reconstruction of the problem...

Have a look at this version of the demo:
http://barliesque.com/temp/demo2.swf
http://barliesque.com/temp/demo2.fla

There are only two screens in this version: The first shows the malfunction, the second is the original version. When you cycle through the screens and return to the first, suddenly it works properly!

Ah the mysteries of Flash. This only seems to be a problem if the bodyshape is on the first frame of the SWF. Since this is pretty easy to work around I'm not going to worry about it. Also, if you put the filter on a symbol -inside- the BodyShape (double click the circle instance, select all, convert to symbol, add the filter) it works fine.

Yup.


Yes, that's exactly how I got around the issue.