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sorry I am a new guy here and in illustrator, I am gonna make a low opacity and blur object that effects on every object behind itself. like below finally enter image description here

marked as duplicate by usr2564301, Paolo Gibellini, Luciano, Vincent Feb 23 '18 at 9:54

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  • What have you tried? But no elementary this can not be done, you can do it in a convoluted manner but it will not do what you want. – joojaa Feb 20 '18 at 15:30
  • @Ovaryraptor yes but it relies on copying, ist not a oject that blurs what is behind. But that the best you can do. – joojaa Feb 20 '18 at 15:35

I'll try to explain it so it's easy to follow.

  • Duplicate the image and paste in front of itself Ctrl+C, Ctrl+F

  • Draw a square polygon the size I want the blur to be

  • Select both my new polygon and the image I duplicated and press Ctrl+7 to create a clipping mask
  • Then to this new group, I would apply a gaussian blur
  • something else, when I blue the square polygon, it is out of shape, out of its frame you know, it no longer has its sharp edge – Farid S Feb 20 '18 at 15:55
  • @FaridS Thats why you need a mask as described in link of Ovaryraptor's comment Point is that object blurs itself, if you want to blur others blur a group or something and opacity mask or clip it with object – joojaa Feb 20 '18 at 16:00
  • I think you must apply the blur to the picture only before masking. – LeoNas Feb 20 '18 at 16:01
  • and your fill object must be bigger than your clip. But as i said not exactly a object that blurs what is behind it. – joojaa Feb 20 '18 at 16:02
  • I've done it. I swear I just forgot it :D. tnx – Farid S Feb 20 '18 at 16:11

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