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1. • CommentAuthorlisztomania
   • CommentTimeNov 7th 2011

    
   Hi,
   I post a previous message but now it's ok.
   But my program got too many lags :/ I create a deathzone on all my scene (so all particles are dead but still laggy...)
   So my question is quite simple : How can I delete a particle when its variable isDead is true ?
   Because I have 400 particles per ghost and I've max 4 ghost at the same time on my stage and it's very slow...
   
   Maybe it's cause by the Blurfilter : GetRenderer().addFilter(new BlurFilter(2, 2, 1)); but I think it's not only that or not that.
   
   If you can help me :D
   
   Good night !
2. • CommentAuthorRichard
   • CommentTimeNov 8th 2011

    
   If a particle is marked dead (particle.isDead is true) then the system will remove it on the next frame update. You don't have to do anything to remove the particle.
3. • CommentAuthorlisztomania
   • CommentTimeNov 8th 2011

    
   ok, thanks to your fast answer :D
   
   So I think it's the blurfilter function which is the problem :/ I need this effect but I don't know how to optimize it é_è
4. • CommentAuthorRichard
   • CommentTimeNov 15th 2011 edited

    
   Is your bitmap renderer as small as possible? Making the renderer's canvas smaller is the most effective way to optimise the filters.
5. • CommentAuthorhaoyutang
   • CommentTimeNov 24th 2011

    
   I met same problem before, I start the emitters again and again and found that the performance was going lower.
   My solution is: (I did below steps before each start())
   1. call killAllParticles() for each emitter.
   2. remove the emitters from the renderer.
   Hope it helps :)