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Corner Pin widget movement output value per mouse movement input is unusably large.
Open, Confirmed, MediumPublic

Description

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-11 11:00, hash: rBd663048696b2
Worked: (optional)

Short description of error
Corner pin widget adjustments via the mouse are unusable. This is due to the extremely large scaling from mouse input to corner pin movement output.
As far as I can tell, mouse movement of 7 px on the x axis and 5 px on the y covers the entire range of the background image. Holding down shift while pressing the left mouse button to enable precision reduces the scaling, but not to the point of usability. For example. grab the right bottom corner widget and move it in the negative x direction while holding down shift. I estimate that the mouse only covers 10 to 15% the length of the image before the widget hits the left side of the image. I also have tried turning snapping on in the off chance it was somehow reversed, but the results are identical.


Exact steps for others to reproduce the error

  1. Create a new default file;
  2. Go to the compositor;
  3. Enable nodes;
  4. Add a viewer node (this allows you to resize and test different sizes for the Corner Pin Gizmo);
  5. Add a Corner Pin node;
  6. Try to edit the Corner Pin widget.

(See how sensitive and unusable it is)

Or using the attached blend file just hit render and then adjust a corner pin widget to see this behavior.

Let me know if you need more information.

Thank you all for your hard work.

Details

Type
Bug

Event Timeline

Germano Cavalcante (mano-wii) renamed this task from Corner Pin widget movement output value per mouse movement input is unusably large. Mouse movement of 7 px horizontal and 5 px vertical covers the entire image range. to Corner Pin widget movement output value per mouse movement input is unusably large..EditedJul 12 2019, 3:04 PM
Germano Cavalcante (mano-wii) lowered the priority of this task from Needs Triage by Developer to Confirmed, Medium.
Germano Cavalcante (mano-wii) updated the task description. (Show Details)
Germano Cavalcante (mano-wii) updated the task description. (Show Details)

To simplify the investigation it is good to make separate reports.
I took the time to do it for you ;)
These are the other reports:
T66764
T66765