So far this makes a new pass for image empties that does not write to the depth buffer.
Todo:
- Sort empties using `DRW_pass_sort_shgroup_z`.
- Calculate correct bounding boxes.
- fix bounding box memory leak.
Reviewers: fclem
Differential Revision: https://developer.blender.org/D3922
Previously this was hardcoded to 2 pixels, which is too low for tablets and
not taking into account DPI. Now we set it equal to the tweak threshold, so
you either always do click or drag.
The default distance of 10 pixels may be quite far for something to be
considered a click, and we'll need to see how well it works. But I find this
to help a lot when selecting vertices in quick succession.
Thanks to Julien for spotting this.
The intention is to fix a too low default threshold on high DPI screen.
Users with high DPI screens that have increased the threshold to fix this
or liked the lower threshold will need to lower it again.
This is still somewhat of a guess, ideally this would be based on the
physical distance travalled, and maybe different per type of input device.
However we do not have access to this information, and hope this gives a
better default.
Use `BKE_curve_texspace_get` instead `BKE_curve_boundbox_get`.
The snap to curve, even out of edit mode, is not done on the displist. So test a boundbox that covers the points seens in edit mode.
This way we guarantee that action tagged for CoW will ensure
order of updates with objects which are using it.
Fixes T57870: Scaling keyframes in Graph Editor causes crash
Fixes T57971: Moving keys in the Dopesheet crashes with Segfault 11
Fixes T57530: Moving keys on a rig, Crash
Fixee T57491: Crash when trying to move keyframe in dope sheet
Boundbox does not depend on transform and only need geometry
component.
This change solves possible race condition accessing geometry
data and allocating/assigning pointers.
Based on disacussion in IRC with @mano-wii and @brecht.
Grease Pencil already implements support for full-featured
per-brush pressure curves, but it is useful to have some
basic global settings that affect all brushes and tools.
This adds two simple options:
- Raw pressure required to achieve full brush intensity.
- Softness control, using a gamma curve internally.
The most important one is the max pressure setting, because it is
critical for ergonomics, but the Linux Wacom driver lacks it.
The softness option internally converts to gamma = 4^-softness.
Reviewers: brecht, campbellbarton
Differential Revision: https://developer.blender.org/D3967
