The Layer brush was in Blender before 2.81, when the sculpt API was
introduced. It had a huge amount of bugs and glitches which made it
almost unusable for anything but the most trivial cases. Also, it needed
some hacks in the code just to support the persistent base.
The brush was completely rewritten using the Sculpt API. It fulfills the
same use case as the old one, but it has:
- All previous artifacts fixed
- Simpler code
- Persistent base now works with multires thanks to the sculpt API
- Small cursor widget to preview the layer height
- More controllable and smoother strength and deformation
- More correct masking support
- More predictable invert support. When using persistent base, the brush invert mode resets to layer height 0, instead of jumping from +1 to -1. The brush can still be inverted in the brush direction property.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D7147
With this brush option it is possible to mask the boundary vertices of
all face sets. This is especially useful in the cloth brush, where face
sets can be used to simulate seams between different patches of cloth
and produce different patterns and effects.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D7230
This commit introduces a new mode for calculating the positions and
weights of the IK segments in the Pose Brush based on the Face Sets.
The first segment of the chain will always include all face sets inside
the brush radius and it will propagate until the boundary of the last
face sets added in the flood fill. Then consecutive connected face sets
are added to the chain until the chain length limit is reached or all
face sets of the mesh are already part of the chain.
This feature enables complete control over the pose brush origins in
case that is needed. Also, with this mode, the user can have a library
of base meshes with face sets already configured to get to the initial
pose as fast as possible.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D7235
This implements the Surface Smooth Brush as a mode inside the Smooth tool,
which uses the HC algorithm from "Improved Laplacian Smoothing of Noisy Surface Meshes".
Comparted to the regular smooth brush with laplacian smooth, this brush removes
the surface while preserving the volume of the object.
The smooth result can be controlled by tweaing the original shape preservation,
displacement and iteration count.
The same surface smooth operation is also available as a mesh filter.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D7057
This automasking option protects the open boundary edges of the mesh from the brush deformation. This is needed to sculpt cloths and it works nicely with the cloth brush.
It has a Propagation Steps property that controls the falloff of the mask from the edge.
Limitations:
- The automask is recalculated at the beginning of each stroke, creating a little bit of lag in high poly meshes, but it is not necessary. This can be fixed in the future by caching the edge distances, increasing a little bit the complexity of the code.
- The boundary vertex detection in meshes is not ideal and it fails with triangulated geometry, but it is the same as in the smooth brush. After fixing this, we should refactor the smooth brush to use the API and let the automasking option manually control the affected vertices.
- It does not work in Multires (it needs to be implemented in the API). The smooth brush in Multires is also not making boundary vertices.
- The falloff has a visible line artifact on grid patterns. We can smooth the final automasking factors several iterations, but it will make the initialization much slower. This can also be added in the future if we decided to cache the distances.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6705
This commit is a full refactor of the grease pencil modules including Draw Engine, Modifiers, VFX, depsgraph update, improvements in operators and conversion of Sculpt and Weight paint tools to real brushes.
Also, a huge code cleanup has been done at all levels.
Thanks to @fclem for his work and yo @pepeland and @mendio for the testing and help in the development.
Differential Revision: https://developer.blender.org/D6293
Face Sets are the new system to control the visibility state of the mesh in sculpt and paint modes. They are designed to work in modes where brushes are the primary way of interaction and they provide much more control when working with meshes with complex shapes and overlapping surfaces.
This initial commit includes:
- Sculpt Face Sets data structures and PBVH rendering.
- Face Set overlay and opacity controls.
- Sculpt Undo support.
- Remesher reprojection support. The visibility state of the mesh is also preserved when remeshing.
- Automasking and Mesh filter support.
- Mask expand operator mode to expand Face Sets (Shift + W) and flood fill areas by connectivity (press Ctrl while expanding).
- Sculpt Mode Face Sets and Visibility API.
- Sculpt Face Sets creation and visibility management operators.
- Operator to randomize the Face Sets colors.
- Draw Face Sets brush tool to create and edit the Face Sets. Drawing on the mesh creates a new Face Set. Pressing Ctrl before drawing modifies the Face Set under the brush at the beginning of the stroke.
- Updated keymap and menu to work with Face Sets from Sculpt Mode (H to toggle visibility, Alt + H to show all, Shit + H to hide).
- Pie menu on the W key with Face common Sets operations.
Know limitations:
- Multires support. The Face Sets and Visibility API needs to be implemented for Multires.
Reviewed By: jbakker, #user_interface, Severin
Differential Revision: https://developer.blender.org/D6070
The hardness property moves the brush falloff towards the edges, making
the brush sharper.
This should be the intended way to control the brush falloff instead of
tweaking the falloff curve manually, as it can be mapped to pressure to
make the falloff variable during the stroke.
It is also a good idea to show in the UI that the custom curves is an
advance features and it should almost never be modified when sculpting/
painting unless you want to create some advanced effects. By modifying
the curves freely it is really easy to break the brushes and make them
produce artifacts. This needs to be done in a later after merging the
pending projects to reorganize all the brush properties accordingly.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D6902
This brush has a simple physics solver that helps when sculpting cloth.
- The mass and the damping properties of the simulation are properties of the brush.
- It has two additional radius control to limit the influence and falloff of the simulation.
- Masked vertices are pinned in the simulation, and it applies the sculpt gravity directly in the solver.
- The Cloth Brush has 7 deformation modes with 2 falloff types (radial and plane).
The brush can create the constraints only on the required PBVH nodes, so the simulation is isolated on high poly meshes. As long
as the brush size is not too big it should be possible to keep it real time.
Known issues:
- The way constraints are created is extremely basic and it creates repeated constraints. Maybe there is another way to create fewer constraints while keeping the simulation quality decent. This part can also be multithreaded. (As it is it works ok, but it could be better)
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6715
This panel is not for 2D paint, IMAGEPAINT_PROJECT_LAYER_CLONE is only
ever used in projection painting, not 2D painting.
Add a proper poll for this.
Maniphest Tasks: T73774
Differential Revision: https://developer.blender.org/D6836
This enables an extra layer of control in the sculpt brushes.
For now it is enabled only in Scrape, but it should work in all brushes (like normal radius). In the future it may also be enabled in other brushes.
You can tweak in this property in the scrape brush to achieve a much better behavior when working on curve surfaces and control how much volume you want to trim. In most cases, it also fixes the bug where the brush keeps trimming in the same area without disabling accumulate.
It should be possible to fix some other artifacts in other brushes by tweaking this default property.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D5993
This patch allow to change the brush tip shape between a square and a
circle using a brush property.
After this change we are no longer testing the distance against a cube
(the Z axis is not used). I did not test this in depth, but if it does
not produce any artifacts I think we can keep it this way instead of
adding more complexity to the code.
In this new distance test the brush falloff is only applied on the
rounded parts of the square to avoid sharp artifacts in the
diagonals. Because of this, the round version is much softer than
the square one. The planned hardness property will fix this, but
this can also be avoided by setting the fallof to a custom curve.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6165
The IK chain was using an anchor point by default as it makes sense for
posing, but for creating curved shapes it is useful to be able to
disable it.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6584
- New bespoke icon for the universal brush toggles
- New icon for Redirected Folder (currently unused)
- New icons for handle types (Auto Clamped, Auto, Aligned, Vector, Free)
- New icons for Sequencer Text Strip anchor (Top, Bottom, Left, Right, Centre)
Thanks to Andrzej Ambroż for the new icons
The Falloff property in the pose brush controls how much deformation
propagates through the ik chain, not by using the distance to the
vertices, so this option does not make sense (it does nothing in the
pose brush code and it disables the 3d paint cursor).
Reviewed By: jbakker
Maniphest Tasks: T73070
Differential Revision: https://developer.blender.org/D6574
This commits introduces the pose_ik_segments brush property in the Pose Brush. When increasing the IK segments count, the brush generates more segments and weights associations following the topology of the mesh. When moving the brush, these segments are transformed using an IK solver and they are used to deform the mesh.
When pressing Ctrl, the brush controls the segments' roll rotation instead of using the IK solver. The brush falloff controls how much rotation is propagated from the first to the last segment in the chain.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6389
Note that this removes image_paint.detect_data from
UnifiedPaintPanel.get_brush_mode, I can't see why it's needed,
it causes issues where the texture paint UI isn't used when it can be.
With the brush reorganization included in D5928, the brush panels had covered the topbar and make impossible to use the drawing tools.
Now, the options are grouped in Stroke popover, similar to Sculpt.
Also fixed some missing or wrong texts.
This makes a number of changes to the tool settings brush UI:
- All brush-related controls are now grouped together, so you can see which items are brush settings are which are not. Previously it was all jumbled together.
- The brush picker is in a separate panel, so that you can switch brushes without worrying about the settings, or vice versa.
- Custom Icon settings moved from the Display settings(now known as Cursor) to the Brushes panel.
- UnifiedPaintSettings panels are removed and the contained options are now next to their relevant setting with a globe icon toggle. This is not displayed in the header.
- 2D Falloff and Absolute Jitter toggles were changed into enums, to make it clearer what happens when they are on or off.
- Adjust Strength for Spacing option was in the Options panel in some modes, but in the Stroke panel in others. It is now always under Stroke.
- Display (now Cursor) panel was reorganized, settings renamed.
- 2-option enums are annoying as a drop-down menu, so they are now drawn with expand=True.
- Smooth Stroke and Stabilizer options in grease pencil and other paint modes are now both called "Stabilize Stroke", for consistency and clarity.
- De-duplicated some drawing code between various painting modes' brush options. I tried to keep de-duplication reasonable and easy to follow.
- A few more tweaks - see D5928 for the extensive list.
Most of the patch is written by Demeter Dzadik, with some additions by myself
Differential Revision: https://developer.blender.org/D5928
Reviewers: Pablo Dobarro, Bastien Montagne, Matias Mendiola
The relation between the pressure/size and the pressure/alpha is a
fundamental property that defines the behavior of a brush, so it does
not make sense to have it unified across all brushes. This applies both
for sculpting and painting.
Some of the new 2.82 brushes need pressure/size or pressure/alpha to be
enabled to work propely, while others don't. Users should not be
switching on and off this property manually when changing brushes if they
want to use unified size. This is also causing that some users are using
the brushes with an incorrect configuration.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6291
You may want to disable antialiasing if you are working with pixel art
or low resolution textures. It is enabled by default.
Reviewed By: jbakker, campbellbarton
Differential Revision: https://developer.blender.org/D6044
This reverts commit 20b2acf336, reversing
changes made to f185cc0ca5.
Merges should only go form the release branch to master. For backporting
commits, use cherry-pick.
