Line thickness changes whenever I lift my pencil from the screen

[Lizzzzy]

The lines of the pencil tool (also with brush tool) changes every time I'm lifting my pencil off the screen. While drawing I get gorgeous pressure variety in my lines. The moment I lift my pencil it all just changes in a very random way. Sometimes the pressure sensitivity / line variety disappears all together and I'm left with a flat solid line. It is impossible to plan out how my lines are going to look. I don't see this behavior happening at all in the demo videos out on Youtube. There the line stays the same after drawing and going on to the next line. It drives me crazy cause I really can't work this way. Does this has anything to do with my settings? Is it a bug? Is it my apple pencil? I am using an ipad 11.9 pro 3th gen and apple pencil 2th gen.
I captured my screen to explain https://youtu.be/oVrTFi43-wc

[NotMyFault]

This is by design for vector brushes. The pressure input creates nodes in the pressure profile of the brush, which can be edited later in the stroke panel. While the pen is down you get a preview only, and the stroke is drawn in final quality after lifting the pen.

If you want to keep the exact rendering, you may need to use pixel persona and pixel brushes, where the strokes are finalized when the pen is still used.

[Lizzzzy]

13 hours ago, NotMyFault said:

This is by design for vector brushes. The pressure input creates nodes in the pressure profile of the brush, which can be edited later in the stroke panel. While the pen is down you get a preview only, and the stroke is drawn in final quality after lifting the pen.

If you want to keep the exact rendering, you may need to use pixel persona and pixel brushes, where the strokes are finalized when the pen is still used.

Thank you for your respond.
But why does it even have pressure sensitivity if I can noway control it?
Still I find it strange that I don't see this behavior in youtube videos. In this demo the lines don't move at all. In my case the whole thickness of the line sometimes disappears. How can anyone draw if your lines keep changing?

 

[NotMyFault]

1 hour ago, Lizzzzy said:

Still I find it strange that I don't see this behavior in youtube videos. In this demo the lines don't move at all.

He uses a basic round brush. You are  using a textured image Or intensity brush, those are far more complex to render.

. you can edit the  brush settings and specifically the pressure curve

 

[Lizzzzy]

4 minutes ago, NotMyFault said:

You are  using a textured image Or intensity brush,

huh I'm using a solid brush, is that different than a basic round brush? If yes, where do I find his brush? I made an new brush by choosing 'new solid brush' in the brush panel. 
Sorry I'm very new to Affinity and come from illustrator. I try to pressure cook myself in to learning Affinity Designer. 

[NotMyFault]

In the stroke panel you can choose the basic brush, or you can create a new one in the brush panel.

https://affinity.help/designer2ipad/en-US.lproj/pages/Panels/strokePanel.html

 

6 minutes ago, Lizzzzy said:

huh I'm using a solid brush, is that different than a basic round brush?

 

[Lizzzzy]

 

 

Yes that's the same brush settings I used. I made a new one just now. It starts fine but than it glitches again. 

[NotMyFault]

1 minute ago, Lizzzzy said:

It starts fine but than it glitches again. 

Unfortunately it is how it is. The preview while drawing is not exact. You use a different zoom level than the tutorial, so the effect becomes more pronounced. You would not notice if zoomed out or using a smaller stroke.

[Lizzzzy]

Well that's to bad. Illustrator it is then. I'm gonna work together on a project with someone who uses affinity, so I really want to like this software. 
I don't see how I can be drawing all zoomed out. In illustrator and fresco there is no movement in the line. And I still don't see this at anybody else's example. 

But thanx for your time anyway!! 

[NotMyFault]

I checked how V1 behaves, and it is principally the same. 
the vector brush shows similar change after lifting the pen, but a bit less then the pencil tool.
 

If you want a brush to not change after llifting,, a raster brush is the only way to go.

[carl123]

11 minutes ago, Lizzzzy said:

Well that's to bad. Illustrator it is then. I'm gonna work together on a project with someone who uses affinity, so I really want to like this software. 

The pencil tool was changed in the 2.6 bata with more controls including a smoothness slider that can be adjusted before or after you create the stroke

You might want to give that a quick try to see if it does what you want

[Lizzzzy]

3 minutes ago, carl123 said:

The pencil tool was changed in the 2.6 bata with more controls including a smoothness slider that can be adjusted before or after you create the stroke

You might want to give that a quick try to see if it does what you want

ooo nice. And where do I find the 2.6 beta version?

[carl123]

This topic about the pencil tool improvements has a link at the bottom of the first post to "join the beta" program

But I do not have an iPad so don't know what happens after that

 

[NotMyFault]

48 minutes ago, carl123 said:

This topic about the pencil tool improvements has a link at the bottom of the first post to "join the beta" program

But I do not have an iPad so don't know what happens after that

 

Seems to not improve really. Ever at 0% smoothness it looks identical to current retail.