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Grease Pencil: Layer Groups, Attributes, and some updates #104955

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Falk David merged 12 commits from filedescriptor/blender-manual:gpv3-manual-updates into blender-v4.3-release 2024-10-08 17:28:05 +02:00
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manual/grease_pencil/modes/edit/curve_editing.rst
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.. _bpy.types.GreasePencil.use_curve_edit:
*************
Curve Editing
*************
Curve Editing allows you to edit Grease Pencil strokes using Bézier curves.
Usage
=====
#. Select the desired strokes to edit as curves.
#. Activate curve editing in the 3D Viewport's header with the toggle button (Bézier curve icon).
#. Once activated you can:
- Edit the curves with the curve handles.
- Select strokes to automatically convert them to curves.
.. note::
Selecting :doc:`points in between </grease_pencil/modes/edit/selecting>` is disabled while in curve editing is active.
.. seealso::
The curve editing handles display can be tweaked in
the :ref:`Overlays <bpy.types.View3DOverlay.display_handle>` popover.
Curve Editing Popover
=====================
.. reference::
:Mode: Edit Mode
:Panel: :menuselection:`3D Viewport --> Header --> Curve Editing`
.. figure:: /images/grease-pencil_modes_edit_curve-editing_panel.png
Curve Editing popover.
.. _bpy.types.GreasePencil.edit_curve_resolution:
Curve Resolution
Number of points generated along each curve segment (between two handles) if *Adaptive Resolution* is disabled.
.. _bpy.types.GreasePencil.curve_edit_threshold:
Threshold
Threshold used for curve fitting. Maximum distance the fitted curve can deviate from the target stroke.
A threshold of 0.0 will generate a curve point for every stroke point. Higher thresholds will result in higher
approximations of the target stroke but also smoother curve.
.. _bpy.types.GreasePencil.curve_edit_corner_angle:
Corner Angle
Any detected corner with an angle above the specified amount will create a sharp (non-aligned) handle.
.. _bpy.types.GreasePencil.use_adaptive_curve_resolution:
Adaptive Resolution
When activated, the *Curve Resolution* is no longer constant for all curve segments but calculated dynamically.
The length of each segment is approximated, then multiplied by the *Curve Resolution* and rounded down.
This will be the number of points to generate for that segment.
With Adaptive Resolution the points will be distribute more evenly across all the strokes.
The *Curve Resolution* option will change the point density.
.. list-table:: Adaptive Resolution.
* - .. figure:: /images/grease-pencil_modes_edit_curve-editing_adaptive-resolution-off.png
:width: 320px
Off.
- .. figure:: /images/grease-pencil_modes_edit_curve-editing_adaptive-resolution-on.png
:width: 320px
On.
Curve Data
==========
Once a stroke has been converted to a curve, the data will be saved to the file.
When Curve Editing is deactivated and the curve is changed, for example using
:doc:`Sculpt Mode </grease_pencil/modes/sculpting/introduction>`,
then the curve will be refitted once Curve Editing is activated again.
Operators
=========
Curve editing is currently more limited than stroke editing.
Every operation in Edit Mode for strokes and stroke points work for curves as well except for the following:
- Duplicate
- Copy and Paste
- Snap to Cursor and Cursor to selected
- Flip
- Simplify and Simplify Fixed
- Trim
- Separate
- Split
- Interpolate

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manual/grease_pencil/modes/edit/index.rst
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introduction.rst
selecting.rst
tools.rst
curve_editing.rst
grease_pencil_menu.rst
stroke_menu.rst
point_menu.rst