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The reported problem was due to a special case where there are no strokes
to be rendered. Since rendering an empty scene is a waste of time, the issue
was addressed here by skipping the stroke rendering process entirely.
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Previously individual strokes were represented by distinct mesh objects
no matter how many vertices and materials each stroke has, although
the vertex and material counts can be quite small depending on the input
scene data. Now stroke meshes are packed into a minimum number of
mesh objects, so as to reduce the overheads of Blender object creation.
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Do not know why this shows up now, probably a recent tweak in BLI_utildefines.h or so...
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This patch removes several stroke shaders written in C++ that are unused
and don't serve a real purpose any more. The removed shaders are:
- BPy_ColorVariationPatternShader
- BPy_StrokeTextureShader
- BPy_TextureAssignerShader
- BPy_ThicknessVariationPatternShader
- BPy_fstreamShader
- BPy_streamShader
and a few more that weren't even exposed to the Python API.
Some minor edits were made by the reviewer.
Differential Revision: https://developer.blender.org/D801
Reviewed by: kjym3
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operations.
The view map is mostly treated as a read-only data structure by line stylization
operations (i.e., selection, chaining, splitting, sorting and stroke creation). The
only exception is the chaining operation in some cases where insertion of extra
FEdge objects is necessary to ensure the continuity of underlying FEdges from
which a chain is constructed.
The present revision addresses the removal of extra FEdges so to keep the view
map clean and suitable for reuse in subsequent render frames.
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The Operators.reset function is exposed to the Freestyle Python API, which makes
it possible to combine multiple style modules into one file.
Differential revision: https://developer.blender.org/D802
Author: flokkievids (Folkert de Vries)
Reviewed by: kjym3 (Tamito Kajiyama)
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Differential revision: https://developer.blender.org/D713
Author: campbellbarton (Campbell Barton)
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The problem addressed here is that there was no mean to check if an iterator
points the last of the elements being iterated over. Such checking is necessary
to reliably dereference the iterator (i.e., calling the operator*() method of the
underlying C++ iterator object).
Now Interface0DIterator and StrokeVertexIterator have an .at_last property
to check if an iterator points the last element. Using this new API feature,
the present commit partly reverts the previous commit rBeb8964fb7f19 to
better address T41464.
Differential revision: https://developer.blender.org/D752
Author: flokkievids (Folkert de Vries)
Reviewed by: kjym3 (Tamito Kajiyama)
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Removed the previous changes for passing a line style through the Controller, and
revised the BlenderTextureShader to assign the shader node tree of a line style
(if specified) to strokes. This way the assignment of shading nodes can be done
through both the Freestyle GUI and Python scripting.
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node-based textured strokes.
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StrokeRep.
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Now the shader node tree of a line style ID datablock is used to define textures
as well as their mapping and influence.
TODO: Textures alpha channel mapping and influence.
TODO: Blend mode in the Output Line Style shader node.
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count.
Changes were made in Stroke::Resample(int) in C++ to prevent a potential infinite loop
caused by an inconsistency between Stroke::_Length and the stroke length computed
based on stroke vertices. Such a stroke length inconsistency is usually caused by missing
calls of Stroke::UpdateLength() (i.e., API implementation bugs), but also may occur due
to scripting errors in user-defined style modules. This commit is meant to help script
writters to identify the latter error cases. Now Stroke.resample(int) may raise a runtime
error to signal an error condition.
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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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directions at TVertices.
A description of the problem is found in https://developer.blender.org/T36425#19 .
The cause of the issue was identified as roudning errors in Operators::createStroke() due
to insufficient numerical precision. Precision promotion from float to double was done in
the return values of getPoint3D/2D methods in Interface0D and its subclasses in C++
(data members stored in the 0D classes have already been in double precision).
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Patch contribution by Paolo Acampora. Thank you!
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When strokes do not have textures assigned, UV coordinates are not computed now.
This will save a bit of time and space in stroke rendering.
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Legacy texture shaders from the original stand-alone Freestyle program are also
declared as deprecated, in favor of Blender's new line style textures.
Patch contribution by Paolo Acampora. Thanks!
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Problem report by flokkievids through rB047c3aa728a4bb944616a084805988714b796d52#1.
Thanks!
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The crash was due to an out-of-range vertex index reference that occured while
computing texture coordinates of strokes with tips.
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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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Seems to be some sort of namespace conflict or so which is
solved by reshuffling the includes a bit.
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These qualifiers were leftovers of the stand alone Freestyle program and not used
(set to an empty string) in Blender for years.
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(See commit e1771e72fbbf828dbf5bed871b814288389f3611 for more detail of
the problem).
Fix for a C++ scope issue caused by 'using namespace Freestyle' that was assumed
even within the Freestyle namespace definition.
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(See commit e1771e72fbbf828dbf5bed871b814288389f3611 for more detail of
the problem).
Made changes to intern/view_map/Interface0D.h and intern/python/Director.h to
avoid #include <Python.h> and keep non-Python header files independent of it.
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getter/setter methods..
These data elements are undocumented and of little use. For now they are commented out
in the implementation in favor of less memory consumption, and a very limited support for
these data components in the Python API was just removed (should be easy to recover).
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Many thanks to flokkievids for identifying the inconsistency.
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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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Changes for VC2013
Now, I can build Blender with VC2013 with Cycles, Collada, OpenExr,OpenImageIO disabled. Also, you need VC2008 sp1 installed to make old libs compatible.
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