Adds support for extrusion from more than one edge and from inner
lattice legs. Also fixes extrusion from one point. Implemented in two
steps. At first so called "copy intervals" are calculated according to
selected control points. Then those are used to copy control points to
the new surface patch. See the differential revision for a video.
Differential Revision: https://developer.blender.org/D15524
This commit adds a new face nearest snapping mode, adds new snapping
options, and (lightly) refactors code around snapping.
The new face nearest snapping mode will snap transformed geometry to the
nearest surface in world space. In contrast, the original face snapping
mode uses projection (raycasting) to snap source to target geometry.
Face snapping therefore only works with what is visible, while nearest
face snapping can snap geometry to occluded parts of the scene. This new
mode is critical for retopology work, where some of the target mesh
might be occluded (ex: sliding an edge loop that wraps around the
backside of target mesh).
The nearest face snapping mode has two options: "Snap to Same Target"
and "Face Nearest Steps". When the Snap to Same Object option is
enabled, the selected source geometry will stay near the target that it
is nearest before editing started, which prevents the source geometry
from snapping to other targets. The Face Nearest Steps divides the
overall transformation for each vertex into n smaller transformations,
then applies those n transformations with surface snapping interlacing
each step. This steps option handles transformations that cross U-shaped
targets better.
The new snapping options allow the artist to better control which target
objects (objects to which the edited geometry is snapped) are considered
when snapping. In particular, the only option for filtering target
objects was a "Project onto Self", which allowed the currently edited
mesh to be considered as a target. Now, the artist can choose any
combination of the following to be considered as a target: the active
object, any edited object that isn't active (see note below), any non-
edited object. Additionally, the artist has another snapping option to
exclude objects that are not selectable as potential targets.
The Snapping Options dropdown has been lightly reorganized to allow for
the additional options.
Included in this patch:
- Snap target selection is more controllable for artist with additional
snapping options.
- Renamed a few of the snap-related functions to better reflect what
they actually do now. For example, `applySnapping` implies that this
handles the snapping, while `applyProject` implies something entirely
different is done there. However, better names would be
`applySnappingAsGroup` and `applySnappingIndividual`, respectively,
where `applySnappingIndividual` previously only does Face snapping.
- Added an initial coordinate parameter to snapping functions so that
the nearest target before transforming can be determined(for "Snap to
Same Object"), and so the transformation can be broken into smaller
steps (for "Face Nearest Steps").
- Separated the BVH Tree getter code from mesh/edit mesh to its own
function to reduce code duplication.
- Added icon for nearest face snapping.
- The original "Project onto Self" was actually not correct! This option
should be called "Project onto Active" instead, but that only matters
when editing multiple meshes at the same time. This patch makes this
change in the UI.
Reviewed By: Campbell Barton, Germano Cavalcante
Differential Revision: https://developer.blender.org/D14591
The transformation snapping code contains a bunch of `#define`s, some ambiguously or incorrectly named attributes. This patch contains refactored code to improve this. This patch does (should) not change functionality of snapping.
Clarified ambiguously / incorrectly named attributes.
- "Target" is used to refer to the part of the source that is to be snapped (Active, Median, Center, Closest), but several other areas of Blender use the term "target" to refer to the thing being snapped to and "source" to refer to the thing getting snapped. Moreover, the implications of the previous terms do not match the descriptions. For example: `SCE_SNAP_TARGET_CENTER` does not snap the grabbed geometry to the center of the target, but instead "Snap transforamtion center onto target".
- "Select" refers to the condition for an object to be a possible target for snapping.
- `SCE_SNAP_MODE_FACE` is renamed to `SCE_SNAP_MODE_FACE_RAYCAST` to better describe its affect and to make way for other face snapping methods (ex: nearest).
Refactored related `#define` into `enum`s. In particular, constants relating to...
- `ToolSettings.snap_flag` are now in `enum eSnapFlag`
- `ToolSettings.snap_mode` are now in `enum eSnapMode`
- `ToolSettings.snap_source` (was `snap_target`) are now in `enum eSnapSourceSelect`
- `ToolSettings.snap_flag` (`SCE_SNAP_NO_SELF`) and `TransSnap.target_select` are now in `enum eSnapTargetSelect`
As the terms became more consistent and the constants were packed together into meaningful enumerations, some of the attribute names seemed ambiguous. For example, it is unclear whether `SnapObjectParams.snap_select` referred to the target or the source. This patch also adds a small amount of clarity.
This patch also swaps out generic types (ex: `char`, `short`, `ushort`) and unclear hard coded numbers (ex: `0`) used with snap-related enumerations with the actual `enum`s and values.
Note: I did leave myself some comments to follow-up with further refactoring. Specifically, using "target" and "source" consistently will mean the Python API will need to change (ex: `ToolSettings.snap_target` is not `ToolSettings.snap_source`). If the API is going to change, it would be good to make sure that the used terms are descriptive enough. For example, `bpy.ops.transform.translate` uses a `snap` argument to determine if snapping should be enabled while transforming. Perhaps `use_snap` might be an improvement that's more consistent with other conventions.
This patch is (mostly) a subset of D14591, as suggested by @mano-wii.
Task T69342 proposes to separate the `Absolute Grid Snap` option out from `Increment` snapping method into its own method. Also, there might be reason to create additional snapping methods or options. (Indeed, D14591 heads in this direction). This patch can work along with these suggestions, as this patch is trying to clarify the snapping code and to prompt more work in this area.
Reviewed By: mano-wii
Differential Revision: https://developer.blender.org/D15037
Some edit-curve operators used an 'ok' variable to represent
if the selection was found and if a change was made.
Previously it would only return cancel if an error was shown
causing a redundant undo step to be added without a selection.
Since this is simple behavior that shouldn't need much explanation,
use two variables with meaningful names to avoid confusion.
Reviewing D14511 highlighted this issue.
Remove the extended version of ED_curve_editnurb_select_pick,
pass the size threshold directly to this function but as the distance in
pixels instead of a multiplier for ED_view3d_select_dist_px.
Using a multiplier is a less direct way to reference the threshold.
This tool can be used to rapidly edit curves. The current set of
functionalities for Bezier splines are as follows:
The functionalities are divided into three versions of the operator:
* Left-Click
* Ctrl + Left-Click
* Double Click
All current functionalities and their defaults are as follows:
* Extrude Point: Add a point connected to an existing point.
Enabled for Left-Click.
* Extrude Handle Type: Type of the handles of the extruded points.
Can be either Vector or Auto. Defaults to Vector.
* Delete Point: Delete existing point.
Enabled for Ctrl + Left-Click.
* Insert Point: Insert a point into a curve segment.
Enabled for Ctrl + Left-Click.
* Move Segment: Move curve segment.
Enabled for Left-Click.
* Select Point: Select a single point or handle at a time.
Enabled for Left-Click.
* Move point: Move existing points or handles.
Enabled for Left-Click.
* Close Spline: Close spline by clicking the endpoints consecutively.
Defaults to True.
* Close Spline Method: The condition for Close Spline to activate.
Can be one of None, On Press or On Click.
Defaults to On Click for Left-Click and None for the others.
* None: Functionality is turned off.
* On Press: Activate on mouse down.
This makes it possible to move the handles by dragging immediately
after closing the spline.
* On Click: Activate on mouse release.
This makes it possible to avoid triggering the Close Spline
functionality by dragging afterward.
* Toggle Vector: Toggle handle between Vector and Auto handle types.
Enabled for Double Click on a handle.
* Cycle Handle Type: Cycle between all four handle types.
Enabled for Double Click on the middle point of a Bezier point.
The keybindings for the following functionalities can be adjusted from
the modal keymap
* Free-Align Toggle: Toggle between Free and Align handle types.
Defaults to Left Shift. Activated on hold.
* Move Adjacent Handle: Move the closer handle of the adjacent vertex.
Defaults to Left Ctrl. Activated on hold.
* Move Entire: Move the entire point by moving by grabbing on the handle
Defaults to Spacebar. Activated on hold.
* Link Handles: Mirror the movement of one handle onto the other.
Defaults to Right Ctrl. Activated on press.
* Lock Handle Angle: Move the handle along its current angle.
Defaults to Left Alt. Activated on hold.
All the above functionalities, except for Move Segment and
those that work with handles, work similarly in the case of Poly
and NURBS splines.
Reviewed By: HooglyBoogly, weasel, campbellbarton
Differential Revision: http://developer.blender.org/D12155
Currently this isn't used in the key-map, it will eventually
allow the 3D viewports tweak tool to match the behavior of other
editors that support tweaking a selection without first de-selecting
all other elements.
- Add SelectPick_Params struct to make picking logic more
straightforward and easier to extend.
- Use `eSelectOp` instead of booleans (extend, deselect, toggle)
which were used to represent 4 states (which wasn't obvious).
- Handle deselect_all when pocking instead of view3d_select_exec,
de-duplicate de-selection which was already needed in when replacing
the selection in picking functions.
- Handle outliner update & notifiers in the picking functions
instead of view3d_select_exec.
- Fix particle select deselect_all option which did nothing.
This patch enables all 8 combinations of Nurbs modes: Cyclic,
Bezier and Endpoint. Also removes restriction on Bezier Nurbs order.
The most significant changes are mode combinations bringing new
meaning. In D13891 is a scheme showing NURBS with same control
points in a modes, and also further description of each possible case.
Differential Revision: https://developer.blender.org/D13891
This commit renames enums related the "Curve" object type and ID type
to add `_LEGACY` to the end. The idea is to make our aspirations clearer
in the code and to avoid ambiguities between `CURVE` and `CURVES`.
Ref T95355
To summarize for the record, the plans are:
- In the short/medium term, replace the `Curve` object data type with
`Curves`
- In the longer term (no immediate plans), use a proper data block for
3D text and surfaces.
Differential Revision: https://developer.blender.org/D14114
Use a shorter/simpler license convention, stops the header taking so
much space.
Follow the SPDX license specification: https://spdx.org/licenses
- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile
While most of the source tree has been included
- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
use different header conventions.
doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.
See P2788 for the script that automated these edits.
Reviewed By: brecht, mont29, sergey
Ref D14069
This commit improves NURBS knot generation by adding proper support
for the combination of the Bezier and cyclic options. In other cases
the resulting knot doesn't change. This cyclic Bezier knot is used to
create accurate accurate "Nurbs Circle", "Nurbs Cylinder" primitives.
"Nurbs Sphere" and "Nurbs Torus" primitives are also improved by
tweaking the spin operator.
The knot vector in 3rd order NURBS curve with Bezier option turned on
(without cyclic) is changed in comparison to previous calculations,
although it doesn't change the curve shape itself.
The accuracy of the of NURBS circle is fixed, which can be checked by
comparing with mesh circle. Tessellation spacing differences in
circular NURBS is also fixed, which is observable with the NURBS
cylinder and sphere primitives. These were causing seam-like effects.
This commit contains comments from Piotr Makal (@pmakal).
Differential Revision: https://developer.blender.org/D11664
There were a few unused enum values: `CU_CARDINAL` and `CU_BSPLINE`
This commit cleans them up from code as they were not used for
anything meaningful.
Differential Revision: https://developer.blender.org/D13554
These existing names were unhelpful at best, actively confusing at
worst. This patch renames them to be consistent with the terms
used to refer to the values in the UI.
- `width` -> `offset`
- `ext1` -> `extrude`
- `ext2` -> `bevel_radius`
Differential Revision: https://developer.blender.org/D9627
- Show "Lasso Select" in menus (along with Box & Circle select)
- Show "Extrude to Cursor" (along with other extrude actions).
- Rename operators that add/extrude on Ctrl-Click
since their names were inconsistent.
This is mainly for discoverability.
This fixes T86440
As the CU_2D flag is set for nurbs, a Curve can have 2D nurbs mixed with 3D.
But the UI does not allow this mixing. It updates all nurbs to 2D or 3D when set.
So remove this specific flag for nurbs.
This may break old files, since 2D curves with mixed 3D are now set as 3D.
Differential Revision: https://developer.blender.org/D10738
Crash occurs at `assert(builder->index_len < builder->max_index_len)`.
Non-bezier nurbs were being created with abnormal values causing the
causing edge count in the draw manager to be incorrect.
This commit also deduplicates and adds descriptions to the code.
Thanks @PratikPB2123 for pointing out where the error is.
When joining curves, the resulting curve will inherit the bevel depth of
the active curve, but the radii would stay the same which leads to
changed appearance when joining.
Now compensate for this taking the different bevel depths into account
(if present).
Was a feature request here (and I also think we had reports about this
-- which were usually turned down as not-a-bug):
https://blender.community/c/rightclickselect/bhhbbc/
Differential Revision: https://developer.blender.org/D10752
The Surface -> Nurbs Curve behaves now like the Curve -> Nurbs Curve,
if you initially select less than all points. So, multiple points can
be selected and extruded which just moves the selected points similar
to Curve -> Nurbs Curve object.
Differential Revision: https://developer.blender.org/D9934
Approximately 33 changes of capitalization to conform to MLA title style.
Differential Revision: https://developer.blender.org/D9796
Reviewed by Julian Eisel
Caused by my own cleanup commit rBa308607a5334. Just a simple copy-paste
error. Here the difference between `curve` and `editnurb` makes quite a bit
of difference.
This commit uses continue in loops and returning early to reduce
indentation in long functions, only where this results in a significant
improvement. Also includes a few LISTBASE_FOREACH macros.
These changes should result in more readable and undestandable code,
especially where while loops were use instead of for loops. They are
not comprehensive, and I skipped wherever the change was not obvious.
Those were only shallow wrappers around `BKE_id_copy`, barely used (even
fully unused in some cases), and we want to get rid of those ID-specific
helpers for the common ID management tasks. Also prevents weird custom
behaviors (like `BKE_object_copy`, who was the only basic ID copy
function to reset user count of the new copy to zero).
Part of 71219.
Previously, it was kind of a mess. In different places it was using `char`, `short` and `int`.
The changed properties are flags that are operated upon using bit operations. Therefore, the integer type should be unsigned. Since we only use 2 bits of these flags, `uint8_t` is large enough.
Especially note the change I had to make in `RNA_define.h` to make this work.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D8844
