android blurFilter issue

[nathanael tardif]

Hi,

I got an issue with blurFilter, hope you'll be able to help me.
I tried to use a blurFilter (on a FlxSprite containing an ellipse drawn with drawEllipse) and it work pretty well on neko and flash.
But on android instead of a smooth blur I got this result :

[nathanael tardif]

Hi,

Me again, I found the origin of the bug but not the solution !
The FlxSprite on which I'm trying to apply the blurFilter was inside a FlxSpriteGroup. And it seems that the filter doesn't display properly because of that. I tried to add the same filter on a FlxSprite which was not inside a FlxSpriteGroup and it worked just fine.
Is it a known bug or am I doing something wrong ?

[nathanael tardif]

Hi,

Solved it, sorry for this useless post.
The bug wasn't coming from the FlxSpriteGoup. It doesn't work because I was applying an alpha value (different from 1) to the FlxSprite before adding the filter.
Non working code :

ellipse.makeGraphic(100, 100, FlxColor.TRANSPARENT, true);
ellipse.drawEllipse(0, 0, 100,100, 0x00ff00, { color: 0x00000000, thickness: 0 }, { color:0xffffffff, hasFill:true } );
ellipse.alpha = .2; // wrong place to set alpha
               
blurFilter = new BlurFilter(8,8,5);
sp_filter = new FlxSpriteFilter(ellipse, 5, 5);
sp_filter.addFilter(blurFilter);

Working code :

ellipse.makeGraphic(100, 100, FlxColor.TRANSPARENT, true);
ellipse.drawEllipse(0, 0, 100,100, 0x00ff00, { color: 0x00000000, thickness: 0 }, { color:0xffffffff, hasFill:true } );
               
blurFilter = new BlurFilter(8,8,5);
sp_filter = new FlxSpriteFilter(ellipse, 5, 5);
sp_filter.addFilter(blurFilter);
sp_filter.sprite.alpha = .2; //good place to set alpha

The first code doesn't work on android but is fine for neko and flash.