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This is an alternative method for fitting a curve which incrementally simplifies the curve, then re-fits.
Generally gives better results, also improves corner detection.
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This reverts commit f12204196fb1ee985ab9745cf9c70877601145f9.
Campbell, sorry. have to revert this for the time being.
We've missed some very important bits, such as:
- FFmpeg is usually linked against OpenJPEG
- OIIO needs OpenJPEG as well.
For FFmpeg issues we can either disable OpenJPEG there (since
we don't really use it), or bump FFmpeg to version 3.1.1 which
can use either of OpenJPEG 1.5 or 2.1.
For OIIO we do need OpenJPEG support (otherwise Cycles will
not be able to use j2k/j2c textures) and currently there is
NO solution to make OIIO working with OpenJPEG 2.1.
According to Matthias Fauconneau (aka mfv) Larry is working
on the patch to get OIIO work with OpenJPEG 2.1, but it'll
take some time still.
I've tried to look into support of some sort of build system
flag and do ifdefs, but it all becomes quite nasty, especially
with bundled OpenJPEG bumped to 2.1.
Surely such an update is something we'll have to apply to
but at this exact moment it causes quite some pain for all
developers.
Suggest to wait for until OIIO supports OpenJPEG 2.1 and then
go with the updates for real.
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Stream handling has changed so this required changes to how files & memory are accessed.
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When this flag is set - even when the curve error is under the threshold,
keep attempting a better fit.
Enable this for freehand drawing, since it gives nicer results and isn't noticeably slower.
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Add a new fallback method that uses offset distance from the curve to the line between both points,
for freehand drawing it typically only fives minor improvements (1-3% fewer points),
for curve dissolve the improvements are more noticeable.
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External libraries may need char to be signed.
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Also remove outdated comment
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Method for scaling is still not perfect but quite close.
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Blender
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Would only happen in degenerate cases.
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Take curvature into account when calculating handle length.
Gives significantly better results for curve dissolve and 10-20% more efficient freehand drawing.
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Don't let the point spacing give bias to a side.
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This mainly touches extern libraries and few debug-only places in intern.
Some summary:
- External libraries are not strict at all about missing declarations,
so we can rather safely remove such warning together with other strict
flags.
- Bullet has some static functions which are not used.
Those were commented out.
- Carve now has some unused debug-only functions commented out as well.
While we're on the way of getting rid of Carve, it makes sense to make
things a bit cleaner for the time being.
- In LZMA we have some parts disabled which gives some set but unused
variables which is rather correct.
- Elbeem had quite some variables set and never used because their usage
is inside of debug-only code which is commented out.
Note about patching upstream libraries: surely one might say that we
have to make local patchset against this, but own experience says it
only gives extra work trying to merge such tweaks to a new upstream
version and usually it's just faster to re-apply such fixes again after
bundling new upstream library.
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Solves following issues:
- Quite reasonable amount of paranoid warnings were solved by an upstream
- Upstream seems to have all fixes needed for FreeBSD and OSX already
- Brings all fixes and such from upstream
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- Access with Shift-LMB or from the 'Create' toolbar tab.
- Uses curve fitting for bezier curves, with error and corner angle options.
- Optional tablet pressure to curve radius mapping.
- Depth can use the cursor or optionally draw onto the surface,
for the entire stroke or using the stroke start.
- Stroke plane can optionally be perpendicular to, or aligned to the surface normal.
- Optional radius tapering and for start/end points.
- Supports operator redo and calling from Python.
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This will be used for calculating bezier curves from freehand drawing,
may be used for other areas too.
Original code from GraphicsGems, 1990 (FitCurve.c),
with updates from OpenToonz, under 3 clause BSD license.
with own minor modifications for integration with Blender:
- support adding extra custom-data.
- improved handle clamping.
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The header which was put to the CMake project is not by any means used
during compilation, it is only used when manually updating CUDA wrangler
from CUDA headers.
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The version of Recast that Blender ships with is from 2009. This patch updates the Recast version to the latest version, 1.5.0. The Detour version remains untouched.
Reviewers: campbellbarton, moguri
Reviewed By: moguri
Projects: #bf_blender
Differential Revision: https://developer.blender.org/D1747
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This is a regression in Bullet, reverted the problematic change for now with
a custom patch.
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Copied some config variables from an original config file.
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There's no need to mix ints and size_t here at all
because all the values fits into integer.
It's unlikely we'll be re-bundling Carve, so didn't
bother with the patchset.
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Those warnings were only addressed for MSVC2015 so far.
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D1751, remove this library since its quite a specific - only supports an older version of this codec.
Also ffmpeg has added support for recent versions of the codec.
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This restores a modification that was there before.
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I tried to carefully preserve all patches since the last upgrade.
Improves T47195, cloth collision detection bug.
Differential Revision: https://developer.blender.org/D1739
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I've been using this fix in another branch locally, so it seems to work fine.
The other #ifdef checks should be checked on too, as __MINGW32__ and __MINGW64__
do NOT seem to be defined when compiling that file
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Previously several areas were calling TEST_SHARED_PTR_SUPPORT and
TEST_UNORDERED_MAP_SUPPORT which isn't that bad on it's own but
was causing some quite verbose output with same information line
printed multiple times. additionally, what's more worse, define flags
for Ceres were duplicated in main CMakeLists and Ceres's CMakeLists.
Now we've got a single place where checks for those classes are
happening and other areas are simply checking for variables set by
those check macros, keeping CMake output clean and nice.
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The main purpose of such linking is to make Blender compatible with
NVidia's debuggers and profilers which are doing some LD_PRELOAD
magic to intercept some function calls. Such magic conflicts with
our CUDA wrangler magic and causes segmentation faults.
The option is disabled by default, so there's no affect on any of
artists.
In order to make Blender linked directly against CUDA library use
the WITH_CUDA_DYNLOAD CMake option (it's marked as advanced).
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