Moving/grabbing depends on the pivot point when it should not #110167
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Reference: blender/blender#110167
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This bug was originally noticed when moving the 3D cursor, but over the course of this issue it turned out to be a bigger problem with moving and grabbing in general. The following text is from when it was reported as just a bug with moving the 3D-Cursor:
System Information
Operating system: Fedora Linux (Wayland)
Graphics card: AMD
Blender Version
Broken: at least from 2.93 to 4.0 all broken
Worked: never?
Short description of error
When moving the 3D cursor, it's moved distance is multiplied by some value depending on the view orientation.
Exact steps for others to reproduce the error
3D cursor sometimes moves too much or too littleto 3D cursor doesn't precisely follow mouse pointer sometimesLooks interesting. Does this only happen at very close-up zoom levels? Or it happens at normal scale as well?
Unable to confirm in 3.6
Could be a linux/wayland only issue?
Will change the status for now.
It happens on all scale levels, and I found a way to reproduce it.
3D cursor doesn't precisely follow mouse pointer sometimesto 3D cursor doesn't precisely follow mouse pointer when Transform Pivot Point is Active ElementCan confirm then. Thanks for investigating. Indeed when Transform Pivot Point is Active Element, the 3d cursor will not precisely follow, however the position is always correct at the mouse down position.
Tested all the way from 2.93 to 4.0, all broken.
Is this related? When Transform Pivot Point is 3D Cursor, grabbed vertices move like the 3D Cursor moves in this issue.
Maybe this is a grabbing + Transform Pivot Point related issue.
I think it is. The bug seems to depend on the screen distance to the pivot point.
I think the intentional behavior for this was to have the sensitivity of
scaleandrotateoperations based on the distance of the pivot point.But it doesn't make sense with grabbing, as grabbing is not a pivot based transform operation. Having the transform pivot point not affect grabbing should fix both, the 3D cursor issue and the modeling issue, if I am correct.
This opens a UI question about where to draw the gizmo for the
Movetool.It makes sense for the
Transformgizmo to be at the pivot point because it has scale and rotate functions.But the tool tip for
Transform Pivot Pointonly talks about scale and rotate.So should the
Movetool gizmo really be drawn at the pivot point?Is this getting anyone's attention? Moving is a pretty fundamental operation after all.
CC @ChengduLittleA
3D cursor doesn't precisely follow mouse pointer when Transform Pivot Point is Active Elementto Moving/grabbing depends on the pivot point when it should not@lichtwerk can you maybe re-evaluate this issue? I'm afraid it might have been lost in the noise but I think it's quite fundamental.