Pressure Sensitivity Pixel Brush Vanishing into Nothingness

[tanias_reign]

Affinity Designer - Ipad, Pixel Persona, Pixel Brush

I'm having a heck of a time getting the pressure sensitivity to work consistently or at all most of the time. Many of the ink brushes and the custom basic brush I use also do this bizarre behavior pictured below.

It's as though the brush has limited ink and I can only brush for so long until the width goes to nothing. (Applying same pressure with ipad pencil) Also pressure sensitivity is supposed to be on, but it has no effect. Is this a setting issue or a bug?

I've gone through a bunch of tutorials and all kinds of troubleshooting and experimenting with the settings, but nothing seems to fix this and make the pressure sensitivity actually work:

 

Brush Settings:

 

Any help  or tips would be much appreciated!

 

[Dan C]

Hi @tanias_reign,

Thanks for your report and our sincerest apologies for the delayed response here, we were extremely busy over the Christmas period and working from home during the pandemic is unfortunately extending our response window to be longer than normal, many thanks for your continued patience and understanding here.

I have duplicated your brush settings here whilst using an Apple Pencil and unfortunately I'm not able to replicate the issue shown in your screenshot -

Can you please confirm for me:

What model iPad are you using?
Which model of the Apple Pencil (Gen 1 or 2)?
What version of iOS is installed?
What version of Affinity Designer is in use?

Many thanks in advance

[tanias_reign]

• Ipad Model: 7th Generation
• Software Version 15.1
• Apple Pencil: Gen 1
• Affinity Designer Version: 1.10.3
• Affinity Designer Build 1.10.19

Also it might be an apple pen issue, do you know if there is a good way to test if the apple pen's pressure sensitivity and angle sensitivity is actually working? I downloaded Procreate, so I have one other program to see if the apple pen is causing the issue. Thanks for the help!

 

[Dan C]

Many thanks for confirming that for me!

This is almost exactly the same setup I used to test here, so it may be related to the Apple Pencil itself.

On 1/10/2022 at 1:32 PM, tanias_reign said:

do you know if there is a good way to test if the apple pen's pressure sensitivity and angle sensitivity is actually working?

As I understand it, you should be able to draw within the Apple 'Notes' app using the Pencil Tool and this supports both pressure and tilt. Do you find the Pencil works correctly here?

[tanias_reign]

The tilt works on notes, but it seems like the tools on notes don't have pressure sensitivity. The pressure of the line is based on speed not actual pressure. 

I went back to Affinity and tilt also works there. It seems that the weird vanishing into nothingness happens when I turn on the pressure dynamics. 

[Dan C]

Many thanks for trying that for me!

On 1/12/2022 at 1:58 PM, tanias_reign said:

but it seems like the tools on notes don't have pressure sensitivity. The pressure of the line is based on speed not actual pressure.

From every site I can find online, Notes should support pressure and the fact it is not working here but using Velocity instead would indicate a wider issue and this would also be explained in your Affinity document as the velocity towards the end of your stroke slows, the stoke would become thinner, as seen in your screenshots.

I recommend performing a force restart, please see the below FAQ for more info on how to achieve this -

Does this change the behaviour for you please?