Fluid: Updated Mantaflow source files

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).

1 files changed, 6 insertions, 3 deletions

diff --git a/extern/mantaflow/preprocessed/fileio/mantaio.cpp b/extern/mantaflow/preprocessed/fileio/mantaio.cpp
index fe29890ec11..ff57ab532e6 100644
--- a/extern/mantaflow/preprocessed/fileio/mantaio.cpp
+++ b/extern/mantaflow/preprocessed/fileio/mantaio.cpp
@@ -85,7 +85,8 @@ int save(const string &name,
          bool precisionHalf = true,
          int precision = PRECISION_HALF,
          float clip = 1e-4,
-         const Grid<Real> *clipGrid = nullptr)
+         const Grid<Real> *clipGrid = nullptr,
+         const bool meta = false)
 {
 
   if (!precisionHalf) {
@@ -105,7 +106,7 @@ int save(const string &name,
     return writeGridsVol(name, &objects);
   if (ext == ".vdb")
     return writeObjectsVDB(
-        name, &objects, worldSize, skipDeletedParts, compression, precision, clip, clipGrid);
+        name, &objects, worldSize, skipDeletedParts, compression, precision, clip, clipGrid, meta);
   else if (ext == ".npz")
     return writeGridsNumpy(name, &objects);
   else if (ext == ".txt")
@@ -134,6 +135,7 @@ static PyObject *_W_1(PyObject *_self, PyObject *_linargs, PyObject *_kwds)
       int precision = _args.getOpt<int>("precision", 6, PRECISION_HALF, &_lock);
       float clip = _args.getOpt<float>("clip", 7, 1e-4, &_lock);
       const Grid<Real> *clipGrid = _args.getPtrOpt<Grid<Real>>("clipGrid", 8, nullptr, &_lock);
+      const bool meta = _args.getOpt<bool>("meta", 9, false, &_lock);
       _retval = toPy(save(name,
                           objects,
                           worldSize,
@@ -142,7 +144,8 @@ static PyObject *_W_1(PyObject *_self, PyObject *_linargs, PyObject *_kwds)
                           precisionHalf,
                           precision,
                           clip,
-                          clipGrid));
+                          clipGrid,
+                          meta));
       _args.check();
     }
     pbFinalizePlugin(parent, "save", !noTiming);