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This update includes part of a performance boost from D12002.
Contributed by @erik85
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Just cleanup.
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Updated fluid source files in extern with clang-format.
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Contributed by @erik85 in D11400. The idea from this patch was placed in
a more generic context: A new FOR macro has been added that loops
over the neighbors of a cell within a given radius.
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Includes update for OpenVDB file IO, i.e. fixes an issue with
compression flag combination that resulted in random segfaults.
Other changes: Cleanup and formatting.
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This updates fixes the following issues (critical for 2.92):
- Issue that prevented dense 'int' grids from being exported (incorrect clip value)
- Issue with particles outside out of domain bounds (position between -1 and 0) not being deleted
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Includes improvements for the file IO. Namely, more meta data will be written from now on.
This change is required to prevent IO issues (e.g. T84649) that arised through the use of sparse grids caching (introduced in 2.92).
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Includes minor fixes / cleanups from the viscosity plugin.
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Fixes issue where files would not be written when 'resumable' option was checked.
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Mainly updated the Mantaflow version. It includes the new viscosity solver plugin based on the method from 'Accurate Viscous Free Surfaces for Buckling, Coiling, and Rotating Liquids' (Batty & Bridson).
In the UI, this update adds a new 'Viscosity' section to the fluid modifier UI (liquid domains only). For now, there is a single 'strength' value to control the viscosity of liquids.
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Includes outflow optimization - might have been the cause of instabilities.
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This update introduces two improvements from the Mantaflow repository:
(1) Improved particle sampling:
- Liquid and secondary particles are sampled more predictably. With all parameters being equal, baked particles will be computed at the exact same position during every bake.
- Before, this was not guaranteed.
(2) Sparse grid caching:
- While saving grid data to disk, grids will from now on be saved in a sparse structure whenever possible (e.g. density, flame but not levelsets).
- With the sparse optimization grid cells with a value under the 'Empty Space' value (already present in domain settings) will not be cached.
- The main benefits of this optimization are: Smaller cache sizes and faster playback of simulation data in the viewport.
- This optimization works 'out-of-the-box'. There is no option in the UI to enable it.
- For now, only smoke simulation grids will take advantage of this optimization.
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Switched from NULL to nullptr.
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Updated version of APIC plugin in order to resolve ASAN issues.
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Fixes build issue
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Basic support for velocity updates with the APIC method.
This commit adds APIC to the already existing dropdown menu for the simulation method. The APIC plugin within Mantaflow has been updated to the latest version.
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Updated files includes:
- Fix for smoke / fire emission from particles
- Custom precision for liquid particles when saving in OpenVDB format
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Among code cleanups, this update includes a new flood-fill helper function for levelsets.
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This broke during the OpenVDB update for 2.90. Just making sure that guiding velocity files are being read correctly.
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-Wreorder was the issue.
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New files contain updated sampling function (support for maximum number of particles cap).
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Updated files include fixes for the mesh IO - read/write success was not propagated.
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No longer including unused dependencies. Should numpy IO be needed at some point, the Manta source update script can be configured so that the required dependencies are included again.
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Includes cleanup that resolves a -Wunused-but-set-variable warning.
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Refactored various functions after noticing new warnings when compiling on Apple DTK devices - there should now be fewer warnings when building.
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New files include fixes for obj mesh import and minor cleanups.
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Fixed issue in the upstream Mantaflow repository.
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Kudos to brecht for noticing the issue
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Kudos to LazyDodo for figuring this out
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This updated set of Mantaflow files includes the improved OpenVDB file IO. With this update it is finally possible to store multiple grids per file. It is also possible to save particle systems and particle data to OpenVDB files.
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Issue was introduced in 7bb3d9787ead with new Mantaflow files from 61280e5af3da.
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Includes changes for particle skipping during advection.
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Includes more flexible options for dt, dx in secondary particles plugin.
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structure
Issue was being caused by a particle offset which was random but the same for every particle.
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Update includes new grid helper functions and some cleanups.
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Includes only a rename. The name PyInit_Main was a bit confusing as it just belongs to Manta.
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Includes additional minmax check for Windows
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The solver will now automatically detect static scenes (no moving obstacles) and use a slightly faster pressure solve in those cases.
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Updates include:
- std::move() cleanup in rcmatrix.h
- Enabled parallelization for fluid guiding (fairly noticeable speed improvement).
- More flexible flags setter function with control over boundary width.
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Updates include:
- A fix from Jacques that changed the loop order in the mesh creation function (the fix speeds up the function significantly due to fewer cache misses).
- Some of the grid copy helper functions are now multithreaded.
- A fix for Windows file IO. Now it possible to load files with non ASCII characters on Windows too.
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Needs more consideration. This fixes compilation for now.
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Updates in the files include:
- New manta files now use an platform independent gzopen function
- Adjusted argument name for vorticity
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Includes the OpenVDB read/write functions for int grids. This essential for the resume bake functionality in modular fluid caches.
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Includes latest changes from the upstream manta repository.
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into Mantaflow
Having this loop in directly Manta is faster and potentially fixes issues T72783 and T72894.
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The memory leak described in T72498 has been fixed in Mantaflow, the updated files should reflect this in Blender.
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Added missing resize for vector that holds vert velocities
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