There is a delay when dragging the value sliders while using a Wacom pen. #94834

New Issue

kursad k · 2022-01-12T01:21:24+01:00

kursad k commented

2022-01-12 01:21:24 +01:00

System Information
Operating system: Windows 10

Blender Version
Broken: Blender 3.0

Short description of error

Trying to drag value input sliders always has an initial friction which makes value dragging not an instant interaction. I do not get this initial friction when I use a mouse instead.

Please see the movie below. As you can see the values start changing just a little bit after dragging starts with the pen. You cant see the mouse pointer in the recording but you can see that the value box activated then the value changing starts happening.

This issue happens with all of the value boxes, not just the transform inputs as in the movie.

pzJM3EGql3.mp4

Exact steps for others to reproduce the error

Make sure you are using a Wacom pen with Windows Ink (although Wintab does not seem to make a diff)

Add a basic object

Open the transform panel

Try to slide the values in the boxes.

**System Information** Operating system: Windows 10 **Blender Version** Broken: Blender 3.0 **Short description of error** Trying to drag value input sliders always has an initial friction which makes value dragging not an instant interaction. I do not get this initial friction when I use a mouse instead. Please see the movie below. As you can see the values start changing just a little bit after dragging starts with the pen. You cant see the mouse pointer in the recording but you can see that the value box activated then the value changing starts happening. This issue happens with all of the value boxes, not just the transform inputs as in the movie. [pzJM3EGql3.mp4](https://archive.blender.org/developer/F12801683/pzJM3EGql3.mp4) **Exact steps for others to reproduce the error** Make sure you are using a Wacom pen with Windows Ink (although Wintab does not seem to make a diff) Add a basic object Open the transform panel Try to slide the values in the boxes.

kursad k commented

2022-01-12 01:21:24 +01:00

Added subscriber: @kursadk

Germano Cavalcante commented

2022-01-14 16:10:43 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-01-14 16:10:43 +01:00

Can you check if changing the drag threshold values affects anything?

Can you check if changing the drag threshold values affects anything? ![image.png](https://archive.blender.org/developer/F12805328/image.png)

kursad k commented

2022-01-14 23:24:58 +01:00

Hi

It does not seem to be making a difference for me. I set it to 5 before.

Hi It does not seem to be making a difference for me. I set it to 5 before.

Richard Antalik commented

2022-01-18 20:28:21 +01:00

Added subscribers: @PrototypeNM1, @iss

Richard Antalik commented

2022-01-18 20:28:21 +01:00

@kursadk Did this worked instantly in any previous Blender version?

@PrototypeNM1 Do you know if this is limitation of pen input?

@kursadk Did this worked instantly in any previous Blender version? @PrototypeNM1 Do you know if this is limitation of pen input?

Pratik Borhade commented

2022-01-21 10:24:38 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-01-21 10:24:38 +01:00

Can not confirm myself but after reading it looks similar to #90771 (Lag Adjusting Value Sliders & Navigating Nested Menus with a Wacom Tablet)

kursad k commented

2022-01-21 17:34:59 +01:00

@PratikPB2123

Are you using a Wacom device? This might be a Wacom driver issue. The delay is not like a second to be super noticable, the delay is noticable when you compared it to a mouse sliding in the value boxes. To me it is noticable enough that it affects the experience negatively.

@PratikPB2123 Are you using a Wacom device? This might be a Wacom driver issue. The delay is not like a second to be super noticable, the delay is noticable when you compared it to a mouse sliding in the value boxes. To me it is noticable enough that it affects the experience negatively.

Pratik Borhade commented

2022-01-21 18:31:21 +01:00

Hi @kursadk , I don't have tablet to test the issue.

That was just an attempt to mention relevant report. This may help sometimes to avoid duplicates.

I came across #90771 while checking older reports so I thought they are the same. But that was a wrong guess.
It's hard to tell without testing. My apologies.

Hi @kursadk , I don't have tablet to test the issue. That was just an attempt to mention relevant report. This may help sometimes to avoid duplicates. I came across #90771 while checking older reports so I thought they are the same. But that was a wrong guess. It's hard to tell without testing. My apologies.

Philipp Oeser commented

2022-02-04 10:32:18 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-02-04 10:32:18 +01:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Philipp Oeser commented

2022-02-04 10:32:18 +01:00

As usual, I cannot reproduce this on Linux.
@PrototypeNM1 : is this one of the issues you mentioned in https://blender.chat/channel/module-triaging?msg=CqLQLfHBEMiDpFtQ3

As usual, I cannot reproduce this on Linux. @PrototypeNM1 : is this one of the issues you mentioned in https://blender.chat/channel/module-triaging?msg=CqLQLfHBEMiDpFtQ3

Nicholas Rishel commented

2022-02-05 06:54:46 +01:00

@lichtwerk Yep, ~~this is afaik the earliest edit: I was thinking of the one Pratik mentioned. There's a few others in a similar vein, for other parts of the UI becoming less responsive.~~

Edit: My bad, I skimmed the issue. This is unrelated to the Wintab lag thing I mentioned, comment below is a better summary.

@lichtwerk Yep, ~~this is afaik the earliest edit: I was thinking of the one Pratik mentioned. There's a few others in a similar vein, for other parts of the UI becoming less responsive.~~ Edit: My bad, I skimmed the issue. This is unrelated to the Wintab lag thing I mentioned, comment below is a better summary.

lictex_ commented

2022-02-05 10:59:35 +01:00

Added subscriber: @lictex_1

lictex_ commented

2022-02-05 10:59:35 +01:00

this behavior seems to exist on both mouse and tablet.. but in terms of feelings, mouse is much better than tablet
some hardcoded dragging threshold values are in interface_handler.c, so changing userprefs likely wont help

/** Drag-lock distance threshold (in pixels). */
#define BUTTON_DRAGLOCK_THRESH 3

/**
 * how far to drag before we check for gesture direction (in pixels),
 * NOTE: half the height of a button is about right... */
#  define DRAG_MULTINUM_THRESHOLD_DRAG_X (UI_UNIT_Y / 4)

/**
 * How far to drag horizontally
 * before we stop checking which buttons the gesture spans (in pixels),
 * locking down the buttons so we can drag freely without worrying about vertical movement.
 */
#  define DRAG_MULTINUM_THRESHOLD_DRAG_Y (UI_UNIT_Y / 4)

this behavior seems to exist on both mouse and tablet.. but in terms of feelings, mouse is much better than tablet some hardcoded dragging threshold values are in `interface_handler.c`, so changing userprefs likely wont help ``` /** Drag-lock distance threshold (in pixels). */ #define BUTTON_DRAGLOCK_THRESH 3 /** * how far to drag before we check for gesture direction (in pixels), * NOTE: half the height of a button is about right... */ # define DRAG_MULTINUM_THRESHOLD_DRAG_X (UI_UNIT_Y / 4) /** * How far to drag horizontally * before we stop checking which buttons the gesture spans (in pixels), * locking down the buttons so we can drag freely without worrying about vertical movement. */ # define DRAG_MULTINUM_THRESHOLD_DRAG_Y (UI_UNIT_Y / 4) ```

Philipp Oeser removed the

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There is a delay when dragging the value sliders while using a Wacom pen. #94834