Transparency Masks and Patterns

New Here ,
Dec 01, 2021 Dec 01, 2021

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Can I  create a pattern of random small blobs that I can use as a transperency mask?

 

Example I have a shape filled with a solid color or pattern, then I copy in place a duplicate of the shape and fill it with my blob pattern. I would like the blobs to act as a transparency mask to "cut  holes" in the original underlying shape. 

 

Or can I use a second fill on the original object that utilizes the blob pattern as a transparency mask?

 

Suggestions?

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Draw and design , How to , Tools

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Adobe Community Professional , Dec 01, 2021 Dec 01, 2021
You could use a seperate object filled with your blobs above your other object. Select both and choose Make Mask in the Transparency panel (play with the Clip and Invert Mask checkboxes for the correct effect).

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Adobe Community Professional , Dec 01, 2021 Dec 01, 2021
Group the objects first before applying the mask.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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You could use a seperate object filled with your blobs above your other object.

Select both and choose Make Mask in the Transparency panel (play with the Clip and Invert Mask checkboxes for the correct effect).

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New Here ,
Dec 01, 2021 Dec 01, 2021

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Close. I can do that for each individual object. However when I tried to apply to all of the objects in the layer simultaneous I could not get it to work.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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Group the objects first before applying the mask.

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New Here ,
Dec 01, 2021 Dec 01, 2021

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fgwebbjr_0-1638389721088.png

Thanks...for the advice I was able to achieve the effect I was look for.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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Good to hear it worked.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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Screenshot 2021-12-01 at 13.43.43.pngScreenshot 2021-12-01 at 13.43.53.png

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New Here ,
Dec 01, 2021 Dec 01, 2021

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I would like to see each individual circle within the pattern act as the mask ...not the entire rectangle containing the pattern.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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In that case tick 'Invert Mask'.

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Adobe Community Professional ,
Dec 01, 2021 Dec 01, 2021

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You can also add a second fill to the object in the Appearance panel.

Give the top fill an opacity of 0%.

Select  Knockout group for the combined appearance.

Screenshot 2021-12-01 at 14.02.45.png

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