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In addition to D319, this patch updates the parameter editor, the UI of Freestyle.
Using new API functionality and experience gained in making D319, this patch
provides a quite noticable speedup for commonly-used Freestyle linestyle modifiers.
As this patch touches a lot of code (and mainly the foundations) it is likely that
mistakes are made. The patch has been tested with a regression suite for Freestyle
(https://github.com/folkertdev/freestyle-regression-tests/tree/master), but testing
with scenes used in production is very much appreciated.
Differential revision: https://developer.blender.org/D623
Author: flokkievids (Folkert de Vries)
Reviewed by: kjym3 (Tamito Kajiyama)
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New properties 'line_color' and 'line_priority' are added to Material ID data blocks.
The 'line_color' property allows users to specify a per-material line color that can be
used as a Freestyle line color through Material color modifiers of line style settings.
The new line color property is intended to provide a solution for line color
stylization when a proper Freestyle support for Cycles is implemented (likely
as part of the upcoming Blender 2.72 release; see Patch D632). Materials in
Cycles are usually set up using shader nodes, and Freestyle won't be capable
of retrieving colors and other properties from node-based materials any soon.
The new line color property of materials addresses this foreseen limitation by
providing artists with an intuitive alternative mean to specify line colors on a
per-material basis independently from node trees.
The 'line_priority' property gives users a way to control line colors at material
boundaries. When a line is drawn along a feature edge at material boundaries,
one of the two materials on both sides of the edge has to be picked up to
determine the line color. So far there was no way to control this selection
(which was in effect at random). Now the material with a higher line color
priority will be selected.
The new per-material line settings are shown in the new Freestyle Line tab in
the Material context of the Properties window (only when Freestyle is enabled).
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freestyle.chainingiterators.__all__.
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This revision is meant to update Freestyle's Python scripts to make full usage
of the new features of Python and Freestyle's Python API.
Freestyle's Python scripts are pretty old already, and were never given much
attention. With the 2.7x generation of Blender coming up, this is an excellent
time to update Freestyle's Python scripts, hopefully adding some new features
and achieving some speed improvements on the way.
Main goals:
* use for loops where possible
* general cleanup, making use of more recent python features (generators,
ternary operator, ect.)
* update the documentation on the way (it's lacking atm)
Differential revision: https://developer.blender.org/D319
Author: flokkievids (Folkert de Vries)
Reviewed by: kjym3 (Tamito Kajiyama)
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This bug fix is likely to affect the visual results of existing Freestyle setups using the
Material color/alpha/thickness modifiers with the 'material_attribute' parameter set to
either 'Diffuse' (default) or 'Specular', and also the Ramp option enabled in the case
of the Material color modifier.
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hidden lines.
This commit is intended to fully fix the problem described in
https://developer.blender.org/T36425#19 (see also the previous commit rB08528f577dcb).
Addition of a small offset (to avoid singularity in stroke rendering due to overlapping vertices)
was not performed for all overlapping vertices.
Removed the StrokeCleaner and related helper functions which were added as a
temporary workaround in rB2a5b6d9c8f16.
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Dashed lines were resetting stroke segment visibility by mistake (making invisible segments
visible, for example when applied to the results of square blueprint geometry modifier).
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Paolo Acampora.
Reviewers: brecht, kjym3, #freestyle
Reviewed By: brecht, kjym3
Differential Revision: https://developer.blender.org/D246
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Line styles now have a set of new options for rearranging the stacking order of lines.
This gives artists more control to determine which lines should be drawn on top of others.
Two available sort keys are the distance from camera and curvilinear 2D length.
Since the distance of a line from camera may vary over vertices, another option called
integration type is used to compute the sort key for a line from the values computed at
individual vertices. Available integration types are MEAN, MIN, MAX, FIRST and LAST
(see the tool tips for more detail).
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The implemented operators are:
freestyle.predicates.AndBP1D
freestyle.predicates.NotBP1D
freestyle.predicates.OrBP1D
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integration type.
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These modifiers were not working properly when they were applied to strokes
whose backbone was already modified by other geometry shaders. This problem
was due to the use of Normal2DF0D that compute 2D vertex normals based on
the underlying FEdges up on which initial stroke geometry is defined. Now vertex
normals are computed on the basis of modified stroke vertices.
A helper function 'stroke_normal' for computing normals of stroke vertices was
added to the 'freestyle.utils' API module.
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edge marks and at material boundaries.
Problem report by Postoman on the BlenderArtists.org Freestyle thread, thanks a lot!
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'freestyle.types' submodule.
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(F32402).
Applied with minor modifications.
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Reported by flokkievids, thanks!
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structure.
Additional bug fixes were also done along with the code updates:
* Fix for the use of old Interface1D.pointsBegin() and .pointsEnd() method names
in the definition of pyDensityAnisotropyF1D and pyViewMapGradientNormF1D.
* Fix for wrong data types (int instead of bool) for:
- pyChainSilhouetteGenericIterator constructor and its .orientation property in
modules/freestyle/chainingiterators.py.
- SpatialNoiseShader constructor in styles/external_contour_sketchy.py.
- ChainSilhouetteIterator constructor in styles/multiple_parameterization.py.
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Both C- and Python-coded API components were rearranged into logical groups.
New Python modules are packaged as follows:
freestyle - Top-level package
freestyle.types - Classes for core data structues (e.g., view map)
freestyle.chainingiterators - Pre-defined chaining iterators
freestyle.functions - Pre-defined 0D and 1D functions
freestyle.predicates - Pre-defined 0D and 1D predicates
freestyle.shaders - Pre-defined stroke shaders
freestyle.utils - Utility functions
The Python modules are installed in scripts/freestyle/modules. Pre-defined
styles are installed in scripts/freestyle/styles.
To-do: update styles according to the new Freestyle API package structure.
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#36425 (freestyle edge marks not working).
Many thanks for Anthony Edlin who helped fix the issue.
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stroke length in StorkeCleaner.
Problem report by Light BWK through personal communications, thanks!
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confusing
and don't give any meaningful info to users.
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incorrectly calculated.
The inner/outer thickness values were separately blended by Multiply, Divide and other binary
operators, which resulted in the wrong thickness values reported in the issue. The operations
must be applied to the sum of the inner and outer thickness values.
Also the Minimum and Maximum operators were not properly implemented (one of the two operands
were ignored by mistake).
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tuples to mathutils.Vector() rather then list.
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Problem report by Light BWK through personal communications, thanks a lot!
Apparently there is something wrong in the way how edges are chained to
create strokes. For some unknown reason, strokes may contain a very small
line segment that proceeds in the opposite direction (e.g., downward
even when adjacent stroke segments proceed upward), resulting in the
reported visual artefact.
This revision is intended to address the reported issue in most cases.
The present solution is not a proper fix of the issue. Another code
update with better understanding of the real cause is due in the future
work.
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used.
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with pointed areas.
The reported problem is a visual artefact (extra lines) generated by
ChainingIterators.pySketchyChainingIterator used for sketchy chaining with the Same Object
option disabled in the Parameter Editor mode. The issue is caused by an inconsistency in
the internal data structure (i.e., view map). For now this fatal error condition is addressed
to avoid visually incorrect results. Another fix will follow to address the cause of the
internal inconsistency.
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for border edges.
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Problem report by Light BWK through personal communications with a
sample .blend file for reproducing the problem. Thanks!
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Only the suggested changes that cause backward incompatibility were considered for now.
* Removed pyFXSThicknessShader that is identical with pyConstantThicknessShader.
* Swapped the order of two arguments of the pyDecreasingThicknessShader constructor
in line with other shaders taking the same arguments.
* Made module functions smoothC and get_fedge into methods of relevant shader classes.
* Removed pyExtremitiesOrientationShader that relied on undefined Stroke methods.
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Reverted part of the trunk revision 56234 (RNA attribute consistency edits).
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Suggested by Sergey Sharybin through a code review of the branch.
The information was mostly recovered from the AUTHORS file [1] of the
stand-alone Freestyle package version 2.2.0.
[1] http://freestyle.cvs.sourceforge.net/viewvc/freestyle/freestyle/AUTHORS.TXT
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Suggested by Sergey Sharybin through a code review of the branch.
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Identified by Campbell Barton through a code review of the Freestyle branch.
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percentage.
Problem report by octane98 in the BlenderArtists Freestyle thread in June 2012, thanks a lot!
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The problem was caused by keeping a reference to a Vector object that is
assumed to be unchanged, but actually altered by the geometry modifier.
The same code updates were made to similar code portions to prevent
possible future bugs.
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* Fix for wild card import statements (e.g., "from Freestyle import *") was done.
Now import statements are either without using "from" or with all imported names
explicitly listed.
* GNU GPL header blocks were added to Python programs. Additional code clean-up
was also made.
* Removed freestyle_init.py and extra-lines.sml that were no longer used.
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* Proper handling of keyword arguments was implemented in Operators and ContextFunctions,
as well as in methods of Interface0D, Interface1D, Iterator, their subclasses, Noise and
IntegrationType.
* Operators' methods and functions in the ContextFunctions module were renamed from
CamelCase to lower cases + underscores. Style modules were updated accordingly.
* Additional code clean-up was also made.
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API users no longer need to define them in user-defined Functions, Predicates and StrokeShaders.
Also removed all .getName() and .getExactTypeName() definitions in pre-defined Functions,
Predicates and StrokeShaders subclasses.
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Fix for PyGetSetDef and proper handling of keyword arguments were done in
UnaryPredicate0D, UnaryPredicate1D, BinaryPredicate1D, and StrokeShader classes.
Style modules were updated accordingly. Additional code clean-up was also made.
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Handling of keyword arguments in Python wrapper class constructors was revised.
This revision is mainly focused on Interface0D, Interface1D, Iterator, and
their subclasses, as well as a few additional view map component classes.
Implementation notes: Because of the extensive use of constructor overloading
in the underlying C++ classes, the corresponding Python wrappers try to parse
arguments through multiple calls of PyArg_ParseTupleAndKeywords() if needed.
The downside of this implementation is that most argument errors result in the
same error message ("invalid argument(s)") without indicating what is wrong.
For now this issue is left for future work.
* Now the instantiation of ViewVertex is prohibited since the underlying
C++ class is an abstract class.
* Removed the .cast_to_interface0diterator() method from CurvePointIterator
and StrokeVertexIterator. Instead the constructor of Interface0DIterator now
accepts the instances of these two iterator classes to construct a nested
Interface0DIterator instance that can be passed to Function0D functor objects.
Specifically, an iterator 'it' is passed to a functor 'func' as follows:
func(Interface0DIterator(it))
instead of:
func(it.cast_to_interface0diterator())
* Boolean arguments of class constructors only accept values of boolean type.
Input values of other types are considered as error.
* Additional code clean-up was made.
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Major API updates were made as in part 3 to address code review comments.
This revision focuses on Python wrappers of C++ iterators.
* Most getter/setter methods were reimplemented as attributes using PyGetSetDef.
* The naming of methods and attributes was fixed to follow the naming conventions
of the Blender Python API (i.e., lower case + underscores for methods and attributes,
and CamelCase for classes). The only irregular naming change is the following, to
better indicate the functionality:
- ChainingIterator: getVertex --> next_vertex
* In addition, some code clean-up was done in both C++ and Python. Also duplicated
definitions of predicate classes were removed.
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