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Hey guys. 

Newbie here! :)
So in a nutshell, I'm an illustrator who primarily draws in Photoshop using a graphics tablet.
I've recently purchased both Affinity Designer & Photo in hopes to totally ditch the Adobe subscription thing.
Working in the way that I do, once downloaded I immediately selected the Affinity brush tool (not the vector brush) in both apps to see how it performs, but for some reason my pressure sensitivity is not accurate as it should be. I'm experiencing this in both applications, but not in Photoshop, Clip Studio Paint, or Sketchbook Pro.
What's shown in the attached images is all strokes that were made quickly using a stable pressure. As you can see the strokes in Photoshop are all very uniform and natural looking, but for some reason in Affinity apps my stroke pressure does not register accurately which makes it incredibly difficult to draw 'neatly'. Sometimes when I press very hard the strokes are incredibly thin, but then suddenly bulk up which causes the strokes to look blobby - the scribbles I made were done with the same amount of pressure throughout but for some reason they seem to start very thin, even with a decent amount of pressure, and then suddenly thicken without me even pressing harder. 
I'm working on an iMac.

I've look up a bunch of tutorials to make sure that I'm using the brushes properly, but they don't seem to play well. Is it just me, or is this a known issue? 
In the last attached image some of the strokes didn't even register at all like the cross bar of the "F" in "of".

Screen Shot 2017-11-02 at 20.43.39.png

Screen Shot 2017-11-02 at 20.44.50.png

Screen Shot 2017-11-02 at 20.57.55.png

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Hey ChristiduToit,


I'm just trying to catch up on the missed posts since the 1.6 release and I've only just seen this one :( Sorry about that.

I'm definitely seeing a bit of a difference between Affinity and Photoshop but not to the extent in your screenshots. I think there's a bit of lag in our strokes which may be causing this inconsistency. Did you post this before or after 1.6 was released? We've done some improvements in 1.6 but I just need clarification from you.

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Unfortunately I see quite a lot of inconsistency on my side. 
The main reason for always having chosen Photoshop as my weapon of choice is because of the buttery smooth strokes and pressure accuracy. 
What you put in with your tablet is what you see on your screen, pressure accuracy is exactly what it should be. 
I so badly want to switch to Affinity, but sometimes, even when I press extremely hard, I just get a very thin hairline stroke and then all of a sudden it 'inflates' and becomes huge (you can see it in the attached images). Due to the type of work I do the precision of the pressure sensitivity needs to be as accurate as possible to do detailed illustrations.

I've had this issue in the previous version and thought perhaps it would be fixed in the update, but even after updating to 1.6 the bug still seems to be there - which is what I used in the attachments.

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What tablet are you using? I'm not suggesting there's anything wrong with it. I just want to see if we have the same/similar to I can do some more investigation. The more info we can get for dev, the better chance we have at addressing it.

 

Thanks! 

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Sure thing!


I'm currently using a Yiynova MVP22U display tablet. Works like a charm in Photoshop, Illustrator, Clip Studio Paint, and Sketchbook Pro - very similar in feel and performance, if not identical, to the Wacom Cintiq 13HD I used in the past. Like I mentioned before, the strokes are smooth and easy to control.

The pressure inaccuracy only seems to come into play while using Affinity Designer as well as Affinity Photo.

I find that it's quite difficult to predict how the programs are reading my pen input as I'm drawing, even if I'm working very slowly.

Almost as if the pressure control is jumping up and down or randomising itself - sometimes thin sometimes thick even though I'm applying the same amount of pressure.

I've attached a screen recording video to show what I mean.

Pressure Test.mov

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Awesome! Glad I could help. 
Definitely the only thing keeping me from completely switching over to Affinity. :)
Brushes make up 90% of what I do in graphic software, so if the brushes are stellar then everything else is really a bonus.
I love Affinity's outlook in the industry, so if I can help in any way please let me know.

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Right, I've got the Cintiq 13HD and initially it seemed slightly more accurate than using the standard Wacom tablet I was using. Then I noticed occasionally it would draw a much thinner line than what I was expecting whilst drawing in quick succession. Again, it wasn't quite as bad as your initial screenshot or video but I believe I'm starting to see it.

I've just had another user report what I believe is a similar thing. I'm going to ask them to provide me with some screenshots and maybe a video and we can compile the findings and get this sent to development. Thanks for your patience so far. 
 

By the way, I've just checked out some of your work and I'm very impressed :) I can see why this is such a big deal for you. 

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Hello! I have recently been having a similar problem, and I haven't found any indication online of anyone having a similar issue until finding this thread here. I am using a Wacom Intuos Pro and an iMac.

 

The thing is, I purchased a new Wacom Intuos Pro a few weeks ago, which turned out to have a defective USB jack, making its connection to my computer unstable. The pressure sensitivity issues started around that time, and I thought they were a result of the defective tablet. I returned it to Wacom last week, and while I'm waiting for the replacement to arrive I am using my old Wacom tablet. Unfortunately, the pressure sensitivity issues are still happening. After testing out the brush sensitivity in Pixelmator a couple days ago, I found that this issue only happens in Affinity Photo.

 

As near as I can tell, the issue is identical to what ChristiduToit describes. I have also watched the video you posted, and that matches my issues as well.

 

I think I may have one additional detail to add on my end. I've noticed that when I make a stroke quickly, touching the pen to the tablet and drawing in one swift motion, the line is consistently thin. If I continue drawing a long line this way while keeping consistent pressure, the size of the brush stroke eventually increases to match the pressure, but slowly. Additionally, if I draw a line by pressing the pen down and then waiting a moment before I first move it, the line will be consistently thick.

 

If you have any updates on this issue, please let me know. I hope the additional information I had will help.

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@Van Doozledorf
I can 100% confirm that I'm getting that exact same experience as you.
The issue persists whether I use my Yiynova MVP22U or my Wacom Cintiq 13HD, so I don't think it's a hardware issue.
The fact that it still works perfectly with other software leads me to believe that there must be a pressure sensitivity bug with Affinity.
Obviously would love if this is sorted so that I can 'officially' switch to Affinity from Adobe.

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Hey Van Doozledorf, welcome to the Affinity Forums.

 

Thanks for the additional info. I logged a few more issues that relate to all of this at the start of the week as I've been spending quite a lot of time using the Wacom tablet we have. If I get any updated on the bugs I logged, I'll let you know. There's a few outstanding ones that need fixing along with the newly logged ones so I imagine they will get done together.

 

 

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@Chris B

I have a quick update that I thought would be worth sharing. I have an Apple Time Capsule, so I was able to remove my current copy of Affinity Photo and restore the previous version that was on my computer from late October. The pressure sensitivity with the brush tool works perfectly, even in a 20 by 10 inch file at 600 ppi. I'll just avoid updating to the current version until a fix for this bug has been found.

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On 09/12/2017 at 5:36 PM, Van Doozledorf said:

@Chris B

I have a quick update that I thought would be worth sharing. I have an Apple Time Capsule, so I was able to remove my current copy of Affinity Photo and restore the previous version that was on my computer from late October. The pressure sensitivity with the brush tool works perfectly, even in a 20 by 10 inch file at 600 ppi. I'll just avoid updating to the current version until a fix for this bug has been found.

Which version did you revert back to?

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I feel like it's worth mentioning that I'm having the same, odd, pressure sensitivity issues as described above using my Apple Magic Trackpad (or the built in trackpad on my MBP).  I'm not using a Wacom tablet.

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@Chris B

I just wanted to check back in on this issue. My computer automatically updated to the current version of Photo recently, and noticed that I was still having the same problem with my brush. I have restored the earlier version once again to keep my brush tool functioning normally. Is there any word on this issue and if it is any closer to being resolved? Thanks!

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I second that! Would absolutely love to get into using Affinity properly for my work - still waiting on that fix. I noticed that there was an update going around, but the issue is still there. 
As I've mentioned, Photoshop, Clip Studio Paint, Sketchbook Pro, and other programs I've been using all seem to fair pretty well with pressure sensitivity, but the Affinity programs feel very jittery. The pressure spikes on certain lines and is far too light on others. I've even purchased a little widget app called Hej Stylus to see if I can try and override the cursor pressure input, but unfortunately it didn't work.
It sounds like I'm complaining, I'm really not, I would just love to use Affinity to it's fullest potential. :)

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@Chris B

Hello again! I just wanted to check in and see if there has been any update regarding this issue. I tried updating to the current version again, and found that the pressure sensitivity problem still persists. Has there been any updates regarding a fix for it? Thanks!

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3 hours ago, Van Doozledorf said:

@Chris B

Hello again! I just wanted to check in and see if there has been any update regarding this issue. I tried updating to the current version again, and found that the pressure sensitivity problem still persists. Has there been any updates regarding a fix for it? Thanks!

There hasn't been any updated to the Mac versions for 6-7 months I'm afraid. There should be a lot of fixes whenever we release the update but I just don't know when that will be. The developers will only release a big update once they are satisfied with the fixes and that there are no regressions. 

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Hi, I can confirm that this is Affinity Photo problem (AP 1.6.7.)
Wacom Intuos4 Wireless and Wacom Cintiq 27QHD and Astropad makes these pressure drops.

Luckily this "pressure drop" glitch not happen in Affinity Designer 1.6.1 on my machine.
(If I remember correctly, there was that same bug earlier version of Affinity Designer).

--

This annoying bug was here very... very long time and I really hope that it is fixed soon,
it makes Affinity Photo useless for me when doing sketching, drawing and painting.
I must use Affinity Designer 1.6.1. which is fine, but..

I am using now cleanly installed High Sierra.

There is small video that I recorded to demonstrate how annoying this pressure bug really is.

PS. I have also suggestion to able to hide that static brush nozzle outline cursor, some situations there is no point to show that, 
because we can see brush review. Better is to make that brush nozzle outline cursor realtime cursor which dynamically rotates and change size etc. 
Almost all my brush nozzles rotates (using tilt or pen rotation) and it is very annoying look that static brush nozzle.

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I can confirm what Luovatone mentioned above.
Affinity Designer desktop seems to be fine since the last update, but the pressure curve used in Photo's desktop app is not the same as the one used in Designer's pixel persona. For some reason Photo's pressure seems to jump around at its own will. I'm sure that if you were to implement the same code used for the pressure in Designer's pixel brushes into Photo then the issue should be resolved. :)

I will add on to this as well that the customisable pressure curve's default slant ('Size Jitter' curve) is quite extreme which makes the variation between light and hard pressure very drastic. It might be worth having a straight (or very slightly curved) pressure curve set as a default. I feel that it's somewhat better to have a straight default pressure curve so that the user can adjust it, rather than having it pre-adjusted when opening the app. See attached screenshots for clarity:

 

Screen Shot 2018-09-18 at 18.53.34.png

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