Fluid: Enabled OpenVDB precision argument

This way particles can be saved with the custom OpenVDB precision options that were introduced in the latest Mantaflow update.

4 files changed, 21 insertions, 13 deletions

diff --git a/intern/mantaflow/intern/MANTA_main.cpp b/intern/mantaflow/intern/MANTA_main.cpp
index cc702b82151..ef7cd4721b0 100644
--- a/intern/mantaflow/intern/MANTA_main.cpp
+++ b/intern/mantaflow/intern/MANTA_main.cpp
@@ -740,11 +740,13 @@ void MANTA::initializeRNAMap(FluidModifierData *fmd)
   else if (fds->openvdb_compression == VDB_COMPRESSION_BLOSC)
     vdbCompressionMethod = "Compression_Blosc";
 
-  string vdbPrecisionHalf = "True";
-  if (fds->openvdb_data_depth == VDB_PRECISION_HALF_FLOAT)
-    vdbPrecisionHalf = "True";
-  else if (fds->openvdb_data_depth == VDB_PRECISION_FULL_FLOAT)
-    vdbPrecisionHalf = "False";
+  string vdbPrecisionHalf = "Precision_Half";
+  if (fds->openvdb_data_depth == VDB_PRECISION_FULL_FLOAT)
+    vdbPrecisionHalf = "Precision_Full";
+  else if (fds->openvdb_data_depth == VDB_PRECISION_HALF_FLOAT)
+    vdbPrecisionHalf = "Precision_Half";
+  else if (fds->openvdb_data_depth == VDB_PRECISION_MINI_FLOAT)
+    vdbPrecisionHalf = "Precision_Mini";
 
   mRNAMap["USING_SMOKE"] = getBooleanString(fds->type == FLUID_DOMAIN_TYPE_GAS);
   mRNAMap["USING_LIQUID"] = getBooleanString(fds->type == FLUID_DOMAIN_TYPE_LIQUID);
diff --git a/intern/mantaflow/intern/strings/fluid_script.h b/intern/mantaflow/intern/strings/fluid_script.h
index 65773221042..9e723f69c70 100644
--- a/intern/mantaflow/intern/strings/fluid_script.h
+++ b/intern/mantaflow/intern/strings/fluid_script.h
@@ -165,7 +165,7 @@ gravity_s$ID$ *= scaleAcceleration_s$ID$ # scale from world acceleration to cell
 \n\
 # OpenVDB options\n\
 vdbCompression_s$ID$ = $COMPRESSION_OPENVDB$\n\
-vdbPrecisionHalf_s$ID$ = $PRECISION_OPENVDB$\n\
+vdbPrecision_s$ID$ = $PRECISION_OPENVDB$\n\
 \n\
 # Cache file names\n\
 file_data_s$ID$ = '$NAME_DATA$'\n\
@@ -718,7 +718,7 @@ def fluid_file_export_s$ID$(framenr, file_format, path, dict, file_name=None, mo
             file = os.path.join(path, file_name + '_' + framenr + file_format)\n\
             if not os.path.isfile(file) or mode_override:\n\
                 if file_format == '.vdb':\n\
-                    saveCombined = save(name=file, objects=list(dict.values()), worldSize=domainSize_s$ID$, skipDeletedParts=True, compression=vdbCompression_s$ID$, precisionHalf=vdbPrecisionHalf_s$ID$)\n\
+                    saveCombined = save(name=file, objects=list(dict.values()), worldSize=domainSize_s$ID$, skipDeletedParts=True, compression=vdbCompression_s$ID$, precision=vdbPrecision_s$ID$)\n\
                 elif file_format == '.bobj.gz' or file_format == '.obj':\n\
                     for name, object in dict.items():\n\
                         if not os.path.isfile(file) or mode_override:\n\
diff --git a/source/blender/makesdna/DNA_fluid_types.h b/source/blender/makesdna/DNA_fluid_types.h
index 8f67cd060e9..afb2a294605 100644
--- a/source/blender/makesdna/DNA_fluid_types.h
+++ b/source/blender/makesdna/DNA_fluid_types.h
@@ -463,6 +463,7 @@ enum {
 enum {
   VDB_PRECISION_HALF_FLOAT = 0,
   VDB_PRECISION_FULL_FLOAT = 1,
+  VDB_PRECISION_MINI_FLOAT = 2,
 };
 
 /* Deprecated values (i.e. all defines and enums below this line up until typedefs). */
diff --git a/source/blender/makesrna/intern/rna_fluid.c b/source/blender/makesrna/intern/rna_fluid.c
index 1630468db7c..916ebf422da 100644
--- a/source/blender/makesrna/intern/rna_fluid.c
+++ b/source/blender/makesrna/intern/rna_fluid.c
@@ -1264,8 +1264,13 @@ static void rna_def_fluid_domain_settings(BlenderRNA *brna)
       {0, NULL, 0, NULL, NULL}};
 
   static const EnumPropertyItem fluid_data_depth_items[] = {
-      {VDB_PRECISION_HALF_FLOAT, "16", 0, "Half", "Half float (16 bit data)"},
-      {VDB_PRECISION_FULL_FLOAT, "32", 0, "Full", "Full float (32 bit data)"},
+      {VDB_PRECISION_MINI_FLOAT,
+       "8",
+       0,
+       "Mini",
+       "Mini float (Use 8 bit where possible, otherwise 16 bit)"},
+      {VDB_PRECISION_HALF_FLOAT, "16", 0, "Half", "Half float (Use 16 bit for all data)"},
+      {VDB_PRECISION_FULL_FLOAT, "32", 0, "Full", "Full float (Use 32 bit for all data)"},
       {0, NULL, 0, NULL, NULL},
   };
 
@@ -2628,10 +2633,10 @@ static void rna_def_fluid_domain_settings(BlenderRNA *brna)
   prop = RNA_def_property(srna, "openvdb_data_depth", PROP_ENUM, PROP_NONE);
   RNA_def_property_enum_bitflag_sdna(prop, NULL, "openvdb_data_depth");
   RNA_def_property_enum_items(prop, fluid_data_depth_items);
-  RNA_def_property_ui_text(prop,
-                           "Data Depth",
-                           "Bit depth for writing all scalar (including vector) "
-                           "lower values reduce file size");
+  RNA_def_property_ui_text(
+      prop,
+      "Data Depth",
+      "Bit depth for fluid particles and grids (lower bit values reduce file size)");
   RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, NULL);
 }