Pale lines in Pattern

[Pinkledots]

Hi,

I’m having trouble with reviewing my pattern tiles (1890 x 1890px at 150dpi).  I am getting a pale line throughout my pattern in the pattern layer and the pixels running on the edge of my tile seem to lighten automatically.  Even though the change is quite faint (as shown in the photo), it’s not suitable for printing.   My pattern tiles are 1890 x 1890px at 150 dpi and the colour of the pixels along the edge change which is becoming very frustrating.  What am I missing?

Thanks so much,

Liz Hussey

[NotMyFault]

Hi,

1. Add a channel mixer adjustment on top.
2. select a alpha channel
3. set offset to 100%

more context:

 

[Pinkledots]

Hiya, Thanks for your quick response.  I’m working with Affinity Photo on my ipad.  I’m a bit confused about how to add the channel mixer adjustment with the alpha channel etc.  Can you help me with clear steps for navigating this on the Ipad 🤗? 

[NotMyFault]

If you upload the actual document i can show it with that example as screen recording.

[Pinkledots]

prisms 2.aftemplateprisms 2.aftemplate

Okay, cool! Have attached the template file. Thanks so much. I am very appreciative of your help.

[NotMyFault]

Hi Liz,

 

as your pattern has transparent areas, I’ve adjusted the workflow a bit.

1. open the file
2. add channel mixer adjustment on top
3. select alpha channel
4. set alpha to about 112%. This lifts the partial alpha in the „pale line“ area so they vanish.
5. As a side effect, the anti-aliasing of all edges changes a bit, too.
6. to compensate, add a levels adjustment 
7. select alpha channel
8. move gamma slider to about 1.2. This brightens the edge area a bit.

in the video I copied the channel mixer by mistake, and deleted it. You can skip this step 😄

 

 

Edited June 18, 2023 by NotMyFault
Video deleted due to storage quota exceeded

[Pinkledots]

Thanks so much.  Your mini tutorial was a great help.  Much appreciated 🌷