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bjgough
Inspiring
September 21, 2012
Answered

Feather a shape layer

  • September 21, 2012
  • 9 replies
  • 194157 views

This has to be possible. Right?

I am trying to create a mask for an animated layer. The animated layer is increasing in scale while changing its position to move off the bottom of the composition. I can create a perfect MASK for that layer, but it moves with the layer. If I could lock the mask, that would be great.

So, instead, I am trying to create a TRACK MATTE. The problem is, I can create the right ellipse to MATTE the animating layer underneath. But, I can't soften it's edges. I've tried adding a glow effect, but it's not enough.

I know this is simple. I've spent 45 minutes trying to do it myself and looking for similar questions/posts... but nothing has helped.

Correct answer bjgough

UPDATE:

Okay, I still don't know if I can feather a Shape Layer.

But, I did finally solve my problem. I don't know if it's the most elegant solution—but, I added a SOLID layer. Created my feather MASK on that layer, and then used the ALPHA TRACK MATTE on my animated layer.

Still curious about feathering shapes....

9 replies

Known Participant
October 17, 2021

I've just come across this problem and found this:

https://www.youtube.com/watch?v=RIBPS2D_ESU

 

Basically just apply a drop shadow (effect) on your track matte, then:

- check the "shadow only" checkbox

- distance: 0

- opacity: 100

and play with the softness.

Participant
February 10, 2022

This is too funny!  I didnt read down to the bottom of this thread and after mucking around a bit I landed on "adding a drop shadow" to the shape!  (I was trying to have the 'sun' rise from a misty bog and the hard edge of the track matte was not working).  The drop shadow works well enough with the opacity and softness way up.  I'll add a link to the final result when I finish it.  Finally a decent work-around.

Known Participant
December 22, 2020

I'd love to know if this is a feature too. Unfortunately, I believe it's not. As I understand, you must feather a shape layer by adding a mask to the shape layer and feathering the mask. Another option that I use frequently is blurring the shape layer with a Blur Effect (Box blur, Gaussian, etc).

Participant
November 3, 2020

Create a shape in illustrator. then bring that into afteffects. put a mask on that, which you can then feather the mask. 

Participant
August 22, 2018

Here's the best solution!  I use a solid layer above the layer of the graphic I want to mask, draw my mask with my pen tool, then twirl open the "Masks" and increase the "Mask Feather" to the desired feather amount, then back on the layer of the graphic I'm masking: under "TrkMat" (to the right of mode), I change "None" to "Alpha Matte (to your solid layer). Done!

Community Expert
December 25, 2019

Another option:

Create any shape layer, if it is parametric, convert to a bezier path, change the pen tool to create a mask, click anywhere, pickwhip and expression from the new mask path to the shape layer mask so that it matches, add an additional expression to the mask expansion that subtracts from one of the values for mask feather and divides by 2. Everything on one layer and the shape layer and the feather can be aniamted.

trashcaneron
Inspiring
March 27, 2022

@Rick Gerard can't believe I didn't know you could pickwhip a mask path to a shape path. my life is forever changed. thanks. 

nack8
Participant
November 30, 2017

For anyone like me that arrived here looking for "how to feather a 3D shape layer"

Blur won't work, that was my first instinct, but the shape just simply disappears. I've only tried the most common blurs, but I'll do some more tests. I was able to figure out a few workarounds for now (not gonna type them all out since this doesn't seem to be an issue for anyone but me at the moment), but I'm trying to start using more shape layers in place of solids so I'm sure I'll need a better solution.

Roei Tzoref
Legend
February 2, 2018
but the shape just simply disappears

can you show an example? I don't see how a blur is different from a feather. they both do the same thing and at a certain amount in both cases the layer will disappear.

dorcaMusseb
Participant
March 30, 2018

Use Roughen Edges and bring down the edge sharpness to 0.

August 8, 2017

Yeah just add a Gaussian Blur from the Effects panel to your Shape Layer and it works perfectly! You can adjust what would the "feather" with the "blurriness" slider instead.

Participant
December 5, 2021

Thank you for your reply. It saved me college end term project.😁

deborahjb1
Participating Frequently
December 12, 2016

You can blur a shape by using Filter > Blur > Shape Blur. Oddly, you can use any shape in your library to create the blur, but you can find one similar to the shape you're using and it works really well. Just adjust the radius to get the degree of feathering.

Roei Tzoref
Legend
December 12, 2016
You can blur a shape by using Filter > Blur > Shape Blur.

I believe Op wanted a workflow to blur a shape in Ae, not Photoshop.

Mylenium
Legend
September 22, 2012

Shape layers cannot be fethered and that is that. Though e.g. applying a Matte Choker effect would give the functionality to some degree...

Mylenium

Community Expert
September 22, 2012

If your shape is a solid just add a blur.

bjgough
bjgoughAuthor
Inspiring
September 22, 2012

Ah, that's interesting. I had "thought" down that road with the "Glow" effect, but a blur might be more successful. I wish AE could approach vectors with the same effects that Illustrator can (eg, feather).

bjgough
bjgoughAuthorCorrect answer
Inspiring
September 21, 2012

UPDATE:

Okay, I still don't know if I can feather a Shape Layer.

But, I did finally solve my problem. I don't know if it's the most elegant solution—but, I added a SOLID layer. Created my feather MASK on that layer, and then used the ALPHA TRACK MATTE on my animated layer.

Still curious about feathering shapes....

EugeneBotha
Known Participant
April 9, 2018

Compound Blur works rather well

Participant
December 25, 2019

Thanks Man Saved me some time 🙂