There's a bug in AE -- it can't use PNG files properly. Use a different type of file.
What exact Ae version? This looks like CS5.5 but Give full numbers.
What exactly is the problem you are seeing? what exactly does the result look like on other format vs png? Try to be specific and clear. There is no bug I am aware on related to this.
It's not revelant with version but its cs5.5
But other people can use.
Looks doesn't care for layer transparency. It's a color correction effect, not an effect generator for flare streaks. Your order of operations is simply wrong and your use of the plug-in is crooked. Create whatever anaimation you want first and set it against a solid background before applying Looks. Otherwise simply leran how to use other effects to achieve the same results and retain transparency.
OMG Sir i am really appreciate you.Thanks for your great help !!!
*edit: I see op got it but I am going to leave it here anyway.
Good call M. Op is probably trying to apply looks on a png with transparency.
here's a detailed explanation:
say you have a layer on transparency in Ae that's composition size
if I apply the looks effect it's giving me a composite on black in it's interface
but I am seeing this in the composition when the effect is applied.
the black background is not really there, but only the composition background which is not composited with the image.
in order to see it too, I have to place a black solid and precomp the quake layer if I am putting the looks effect on it's layer. or use an adjustment layer.