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Reported by coverity scan.
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Now it is possible to select if the blank frame is created in active
layer only or in all layers.
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Experimental option for the Reproject Strokes operator to project strokes on to
geometry, instead of only doing this in a planar (i.e. parallel to viewplane) way.
The current implementation is quite rough, and may need to be improved before it
is really ready for use. Potential issues:
* Loss of precision (i.e. stairstepping artifacts) from the 3D -> 2D -> 3D conversion
as we don't have float version of one of the projection funcs
* Jagged depth if there are gaps, since it will default back to the 3d-cursor plane
if no geometry was found (instead of doing some fancy interpolation scheme)
* I'm not sure if it's that useful for adapting GP strokes to deforming geometry yet...
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layer doesn't have any frames
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Now the eraser checks if there's an active frame with some strokes in it
before creating a new frame. There's no point in creating a new frame if
there are no strokes in the active frame (if one exists).
This still doesn't help much if there were strokes but they weren't touched though...
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frame
This is a hardcoded keymapping that just calls the "Add Blank Frame" operator
introduced in the previous commit.
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This operator adds a new frame with nothing in it on the current frame.
If there is already a frame there, all existing frames are shifted one frame later.
Quite often when animating, you may want a quick way to get a blank frame,
ready to start drawing something new. Or maybe you just need a quick way to
add a "placeholder" frame so that a suddenly-appearing element does not show
up before its time.
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Also seems the new file forced trailing whitespace, which goes against
https://wiki.blender.org/index.php/Dev:Doc/Code_Style#Trailing_Space
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To make it faster to try different interpolation curves, there's a new operator
"Remove Breakdowns" which will delete all breakdowns sandwiched by normal
keyframes (i.e. all the ones that the previous run of the Interpolation op created)
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interpolation
This commit introduces the ability to use the Robert Penner easing equations
or a Custom Curve to control the way that the "Interpolate Sequence" operator
interpolates between keyframes. Previously, it was only possible to get linear
interpolation between the gp frames.
Workflow:
1) Place current frame between a pair of GP keyframes
2) Open the "Interpolate" panel in the Toolshelf
3) Choose the interpolation type (under "Sequence Options")
4) Adjust settings (e.g. if you're using "Custom Curve", use the curvemap widget
to define the way that the interpolation proceeds)
5) Click "Sequence" to interpolate
6) Play back/scrub the animation to see if you've got the result you want
7) If you need to make some tweaks, undo, or delete the generated keyframes,
then repeat the process again from step 4 until you've got the desired result.
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- "gp_interpolate"
The "gp_sculpt" settings should be strictly for stroke sculpting, and not abused by
other tools. (Similarly, if other general GP tools need one-off options, those should
go into the normal toolsettings->gpencil_flag)
Furthermore, this paves the way for introducing new settings for controlling the way
that GP interpolation takes place (e.g. with easing equations, or a custom curvemap)
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* Reduce scope of variables
* Simplify a lot of the active_gpl->actframe->...->framenum stuff
* Missed some error messages
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* Reshuffled some blocks of code for better ease of navigation/flow in the file
* Improved some tooltips
* Removed "Helper" tag from some functions that serve bigger roles
* Fixed some errant formatting
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The interpolation operators (and their associated code) occupied a significant
portion of gpencil_edit.c (which was getting a bit heavy). So, it's best to split
these out into a separate file to make things easier to handle, in preparation
for some further dev work.
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Things like `BLI_uniquename` had nothing, but really nothing to do in
BLI_path_util files!
Also, got rid of length limitation in `BLI_uniquename_cb`, we can use
alloca here to avoid overhead of malloc while keeping free size (within
reasonable limits of course).
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Sometimes it can be useful to be able to keep onion skins visible in the
OpenGL renders and/or when doing animation playback. In particular, there
are two use cases where this is quite useful:
1) For creating a cheap motion-blur effect, especially when the before/after
values are also animated.
2) If you've animated a shot with onion skinning enabled, the poses may end
up looking odd if the ghosts are not shown (as you may have been accounting
for the ghosts when making the compositions).
This option can be found as the small "camera" toggle between the "Use Onion Skinning"
and "Use Custom Colors" options.
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When append a datablock the default brushes were not created and only
were created when draw new strokes. Now the default brushes are created
when draw strokes if necessary.
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the operator is run using wait_for_input=True)
This just brings it in line with the drawing operator
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When the parent object matrix change after the layer was parented, the
inverse matrix for strokes must be updated when editing strokes or the
transformations will be wrong.
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Before this commit, the brush set was created with the first stroke
drawing, but if the user creates the datablock or the layer manually
(not drawing) the brush list was empty.
This commit complement the python fix by Sergey:
https://developer.blender.org/rB89c1f9db37cc1becdd437fcfdb1877306cc2b329
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Now, the strokes can be locked to a plane set in the cursor location.
This option allow the artist to rotate the view and draw keeping the
strokes flat over the surface. This option is similar to surface option
but doesn't need a object.
The option is only valid for 3D view and strokes in CURSOR mode.
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The initial idea was to use Ctrl+E to interpolate stroke because this is
similar to Pose breakdown, but the Ctrl+E keymap is used to inverse
grease pencil sculpt effect.
The new keymap is Ctrl+Alt+E in order to fix the conflict
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strokes
Reported by @loochmunz. I've also gone through checking for and fixing other places
where this was also occurring.
To be included in 2.78
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Was using a bunch of different spellings, mostly "data-block" though, so went with that one (would have been my #1 choice anyway ;) )
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We were calling BLI_remlink and then BLI_insertlinkbefore/after quite often. BLI_listbase_link_move simplifies code a bit and makes it easier to follow. It also returns if link position has changed which can be used to avoid unnecessary updates.
Added it to a number of list reorder operators for now and made use of return value. Behavior shouldn't be changed.
Also some minor cleanup.
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Was spawning error popup each time user tried to move a stroke higher or lower than the list allowed. We don't do that anywhere else and it's not really useful info for the user. So rather not bother her.
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Replace the W shortcut for subdivision by a new menu for edit specials
in order to keep consistency in UI.
Subdivision is not used all the time, so it's better assign this
shortcut to menu.
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In some situations the artist needs to subdivide a stroke created with
few points before, specially for sculpting.
The subdivision is done for any pair of continuous selected points in
the same stroke.
The operator can be activated in edit mode with W key and has a
parameter for number of cuts.
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This reverts commit b50a5b92c15e0f110ca978352c2ba59bc3e97dd3 because BKE_report functions are already automatically handled by translation system.
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Now the factor works similar to other Blender areas to make the factor
more consistent for artists. The value 0% means equal to original
stroke, 100% equal to final stroke (50% means half way). Any value below
0% or greater than 100% create an overshoot of the stroke.
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This brings this tool more in line with the Breakdowner for armature animation,
with which it shares many commonalities.
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When drawing with Grease Pencil "continous drawing" for a long time
(i.e. basically, drawing a very large number of strokes), it could be
possible to cause lower-specced machines to run out of RAM and start
swapping. This was because there was no limit on the number of undo
states that the GP undo code was storing; since the undo states grow
exponentially on each stroke (i.e. each stroke results in another undo
state which contains all the existing strokes AND the newest stroke), this
could cause issues when taken to the extreme.
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Two new modal operators to create a grease pencil interpolate drawing
for one frame or a complete sequence between two frames. For drawing
the temporary strokes in the viewport, two drawing handlers have been
added to manage 3D and 2D stuff.
Video: https://youtu.be/qxYwO5sSg5Y
The operator shortcuts are Ctrl+E and Ctrl+Shift+E. During the modal
operator, the interpolation can be adjusted using the mouse (moving
left/right) or the wheel mouse.
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When undo in UV/Image editor and press ESC key, there was segment fault
in Toolsettings because the reference was missing. Now the toolsetting
is loaded from context and not from local operator data.
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We usually don't silence migh-be-uninitialized warning (which is the only
thing which could explain setting matrix to all zeroes) so we can catch
such errors when using tools like Valgrind.
I don't get warning here and the initializer was wrong, so removing it.
If it-s _REALLY_ needed please do a proper initialization.
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another
This was because the poll callback was checking for the presence of an active layer.
If you just create an empty datablock and try to paste, nothing would happen.
However, this check was kindof redundant anyway, as the operator would add a layer for
you if it didn't find one.
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instead of for every point
(Later this calculation should be moved into the iteration macro instead, since
it only needs to be applied once per layer along with the diff_mat calculation)
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A common problem encountered by artists was that they would accidentally move
the 3D cursor while drawing, causing their strokes to end up in weird places in
3D space when viewing the drawing again from other perspectives.
This operator helps fix up this mess by taking the selected strokes, projecting them
to screenspace, and then back to 3D space again. As a result, it should be as if
you had directly drawn the whole thing again, but from the current viewpoint instead.
Unfortunately, if there was originally some depth information present (i.e. you already
started reshaping the sketch in 3D), then that will get lost during this process.
But so far, my tests indicate that this seems to work well enough.
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working on other stuff
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General reshuffling of defines and spacing/brace usage for consistency.
In particular:
* When defining types, don't mix pointers and non-pointer types on same line
to avoid confusion
* As much as possible, have all defines at the top of each block instead of
scattered haphazardly throughout the code
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