Blur filter: bounding box ghost?

[evolbeagle]

Hello all,

I did a quick search and didn't see anything, so here goes...

I've noticed that when I use the blur filter I see a very pale white ghost of the shape's bounding box in my resulting swf movie. It's not really noticeable with lighter shapes and backgrounds, but it's a bit more obvious with darker shapes and backgrounds.

I may be doing something wrong, so here's my process: make a shape, convert to movie clip, apply blur filter... ...see ghost of bounding box in resulting movie.

If I'm doing it right, then I guess it also could be a slight bug in the linux flash player. If that's the case, I won't worry about it for obvious reasons.

Anyway, if I can get rid of the white blur ghost (or discover that I'm the only one seeing it :yikes: ), it'd be awesome.

Thanks,

Matt
Ubuntu 6.10 using KoolMoves via CrossOver

[tmoore935]

Could you give an example? If I have a black background with a blured grey circle with a white outline, I might see something like a ghost. If you posted this problem, then someone could post it from a screen capture and that should answer the problem if its linux.

[evolbeagle]

I'll try to remember to post an example later, but what I'm seeing is unmistakable: I can definitely perceive the bounding box - sometimes clearly, sometimes faintly - when I blur a shape. It's especially obvious with irregular shapes. Your example gives no evidence of what I'm seeing. That plus the fact that I got no "me too's" on this one may mean it's a linux player bug - or so I'm tentatively guessing.

Matt

[tmoore935]

Do you see a box even though you drew a circle? Is this what you mean when you say bounging box?

[evolbeagle]

Here's what I mean by bounding box (http://en.wikipedia.org/wiki/Bounding_volume), though I can't say I'm using the term with 100% technical accuracy. :D

Matt

[blanius]

Just ran a test and don't see this problem here.

[evolbeagle]

I finally got around to posting a quick example (http://www.sketch.mattjordan.com/2007/05/06/bounding-box-ghosts/). There's a swf followed by a screen capture of how I see it.

Thanks,

Matt

[tmoore935]

I finally got around to posting a quick example (http://www.sketch.mattjordan.com/2007/05/06/bounding-box-ghosts/). There's a swf followed by a screen capture of how I see it.

Thanks,

Matt
I see only one box and i do see the bounding box faintly in the background.

[w.brants]

There's a swf followed by a screen capture of how I see it.
The problem you are talking about is caused by the color depth of your screen. It also happens on a windows based computer if you set your screen to 16 bit color.

[tmoore935]

My colors are 32 bit on vista

[blanius]

I looked at it at 16bit and 32 and still don't see the box in the swf

[tmoore935]

Is there a swf or a swf and a png or is there just a png posted? I olnly see a png and it has a bounding box??? It seems like once I saw both but not now.

[evolbeagle]

The problem you are talking about is caused by the color depth of your screen. It also happens on a windows based computer if you set your screen to 16 bit color.


Okay, that was it. Something I installed recently must have reset the color to 16 without telling me, 'cause I'm sure it wasn't 16 a couple of months ago. Since I was "sure" that wasn't the problem, I didn't even check it. Obviously, it always pays to check the basics, even - and perhaps especially - when you're "sure."

Thanks for the help, guys.

Matt