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Activity Forums Adobe After Effects Strange halo on border on transparent swf !

  • Strange halo on border on transparent swf !

    Posted by Tobbe Bergman on November 20, 2007 at 1:25 am

    Hi there I have been working with After Effects for a couple of weeks now so I guess you can say im a beginner.

    I am trying to do a morph between two images with RE:Flex.

    As I understand it this is the method to use for creating really cool interfaces like the ones on this site https://www.derbauer.de/index1.htmlor thishttps://www.carpe-diem-studios.de

    Can anyone explain why I get a brown halo or stroke on the transparent border of the exported swf?

    I managed to remove it but then I found out that I’ve lost the transparency and got a black background instead.

    All help will be greatly appreciated.

    Thank you!

    My little experimental morph looks like this:
    https://www.studiobergman.com/ae03.html

    Tobbe Bergman replied 18 years, 6 months ago 2 Members · 10 Replies
  • 10 Replies
  • Pierre Jasmin

    November 20, 2007 at 2:51 am

    Looks good except you say there should not be a brown outline

    Do you see that in AE or only when you export the SWF?

    I don’t think that this is introduced by RE:Flex

    IF you see this in AE THEN:
    I am not 100% on your source pictures are generated (are you making the source images in AE or importing that),
    if you apply AE Matte | Simple Choker over and under 0.0
    Does the outline go away in one case and does it grow in the other case.

    Pierre

  • Tobbe Bergman

    November 20, 2007 at 10:28 am

    Hi Pierre and thanks a million for your fast reply!

    It looks perfect in AE but not in the exported swf.
    I made the images in Photoshop and saved as png24 and have also tried with tiff and png8.

    I managed to lose the brown border with the Keylight effect but at the same time the transparence was replaced with black!

    This is driving me nuts!

    I will try the simple choker later today.

    Thanks again Pierre.

  • Tobbe Bergman

    November 20, 2007 at 9:13 pm

    Pierre

    Now I have tried the Simple Choker.
    A value of around +5 seems to work best.

    I also did one with AE’s solids (green thing) and that shows clearly brown stuff on the edges?

    https://www.studiobergman.com/ae04.html

    Thank you!

  • Pierre Jasmin

    November 20, 2007 at 9:20 pm

    Wonder where that brown stuff comes from?
    Is your comp background color brown (try black)
    Looks like a bug in the swf export related to premultiply, unmultiply if you ask me
    If you send me a project to techsupport@revisionfx.com I can look at it and submit the bug to Adobe if you like

    Pierre

  • Tobbe Bergman

    November 20, 2007 at 11:55 pm

    The background ‘is’ black and I tried to use only solids with some animated opacity and when you set it lower than 100% the brown appears? So its clearly not coming from ReFlex.

    Ill send it to you so you can have a look at it.
    If you look at the swf, it stops at opacity 50% where you can clearly see the brown!

    It looks as if the background indeed was brown but it is not.

    I just really hope I’ve missed something basic that you may have overlooked so I can get down and get creative instead of just trying to find out whats going wrong.

    Thanks!

  • Pierre Jasmin

    November 21, 2007 at 5:14 am

    Thanks for sending project
    The brown seems to come from the shape stroke color even if it’s set to size 0
    Maybe it helps if you set stroke transparency to 0%?

    Pierre

  • Tobbe Bergman

    November 21, 2007 at 9:06 am

    If you export the project to swf do you also get the same “brown” result?

    I havent experimented with stroke transparency, where is that control? (Im at work at the moment)

    Could it be my graphic card that generate the brown when rendering the swf?

    Thanks!

  • Pierre Jasmin

    November 21, 2007 at 5:35 pm

    I see that brown color in the Stroke Controls if you twirl up Ellipse – that’s all I see for now as where that could be coming from

  • Pierre Jasmin

    November 21, 2007 at 6:26 pm

    It’s not that, I see if I render that it blends to brown whatever the setup when you have transparency.
    I sent your test project to ae bugs to see what they say

    Pierre

  • Tobbe Bergman

    November 22, 2007 at 9:51 am

    Pierre

    Well it feels good to hear that im not the only one on the planet who have this issue.

    Lets hope they can fix this bug soon so that I can get creative and forget about the brown stroke thing.

    Thanks Pierre You’ve made my day!

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