new demo version 0.6.3!

rlguy · rlguy · commit 9b4f62868cb3 · 2023-04-20T12:57:40.000-07:00
diff --git a/README.md b/README.md
@@ -8,7 +8,7 @@ Want to try the FLIP Fluids addon before buying the [full marketplace product](h
 
 ### Getting Started
 
-Download the latest FLIP Fluids Demo installation file here: [FLIP_Fluids_addon_0.6.2_demo_(29_mar_2023.zip)](https://github.com/rlguy/Blender-FLIP-Fluids/releases/download/v0.6.2/FLIP_Fluids_addon_0.6.2_demo_.29_mar_2023.zip)
+Download the latest FLIP Fluids Demo installation file here: [FLIP_Fluids_addon_0.6.3_demo_(20_apr_2023.zip)](https://github.com/rlguy/Blender-FLIP-Fluids/releases/download/v0.6.3/FLIP_Fluids_addon_0.6.3_demo_.20_apr_2023.zip)
 
 After downloading the demo addon, follow our [Installation Instructions](https://github.com/rlguy/Blender-FLIP-Fluids/wiki/Addon-Installation-and-Uninstallation). The instructions are similar to installing any other Blender addon.
 
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
@@ -53,8 +53,8 @@ set(CMAKE_BUILD_TYPE Release)
 set(FLUIDENGINE_VERSION_TYPE_IS_STABLE_BUILD TRUE)
 set(FLUIDENGINE_VERSION_MAJOR 0)
 set(FLUIDENGINE_VERSION_MINOR 6)
-set(FLUIDENGINE_VERSION_REVISION 2)
-set(FLUIDENGINE_VERSION_DATE "29-MAR-2023")
+set(FLUIDENGINE_VERSION_REVISION 3)
+set(FLUIDENGINE_VERSION_DATE "20-APR-2023")
 
 if(FLUIDENGINE_VERSION_TYPE_IS_STABLE_BUILD)
     set(FLUIDENGINE_VERSION_TYPE_LABEL "Demo")
diff --git a/src/addon/bake.py b/src/addon/bake.py
@@ -722,6 +722,7 @@ def __delete_outdated_savestates(cache_directory, savestate_id):
         if savestate_number > savestate_id:
             path = os.path.join(savestate_directory, d)
             try:
+                print("Delete savestate", path)
                 fpl.delete_files_in_directory(path, extensions, remove_directory=True)
             except:
                 print("Error: unable to delete directory <" + path + "> (skipping)")
@@ -786,11 +787,14 @@ def __load_save_state_data(fluidsim, data, cache_directory, savestate_id):
         current_autosave_directory = os.path.join(savestate_directory, "autosave")
         if savestate_name != "autosave" and os.path.isdir(current_autosave_directory):
             backup_autosave_directory = current_autosave_directory + ".backup"
+            if os.path.isdir(backup_autosave_directory):
+                # Backup autosave directory may already exist from a previous bake, remove if so
+                fpl.delete_files_in_directory(backup_autosave_directory, [".state", ".data"], remove_directory=True)
             os.rename(current_autosave_directory, backup_autosave_directory)
             try:
                 old_directory = autosave_directory
                 new_directory = os.path.join(savestate_directory, "autosave")
-                os.rename(old_directory, new_directory)
+                shutil.copytree(old_directory, new_directory, dirs_exist_ok=True)
                 fpl.delete_files_in_directory(backup_autosave_directory, [".state", ".data"], remove_directory=True)
             except Exception as e:
                 os.rename(backup_autosave_directory, current_autosave_directory)
diff --git a/src/addon/operators/draw_force_field_operators.py b/src/addon/operators/draw_force_field_operators.py
@@ -16,12 +16,6 @@
 
 import bpy, blf, math, colorsys
 
-try:
-    import bgl
-except ImportError:
-    # bgl module may be deprecated depending on Blender version
-    pass
-
 from bpy.props import (
         IntProperty
         )
@@ -194,9 +188,15 @@ def draw_callback_3d(self, context):
                 # be deprecated in Blender 3.7. Use gpu module instead.
                 gpu.state.point_size_set(dprops.debug.force_field_line_size)
             else:
+                # only attempt to import bgl when necessary (older versions of Blender). In Blender >= 3.5,
+                # importing bgl generates a warning, and possibly an error in Blender >= 4.0.
+                import bgl
                 bgl.glPointSize(dprops.debug.force_field_line_size)
             particle_batch_draw.draw(particle_shader)
         else:
+            # only attempt to import bgl when necessary (older versions of Blender). In Blender >= 3.5,
+            # importing bgl generates a warning, and possibly an error in Blender >= 4.0.
+            import bgl
             bgl.glPointSize(dprops.debug.force_field_line_size)
             bgl.glBegin(bgl.GL_POINTS)
 
diff --git a/src/addon/operators/draw_grid_operators.py b/src/addon/operators/draw_grid_operators.py
@@ -16,12 +16,6 @@
 
 import bpy, blf, math, colorsys
 
-try:
-    import bgl
-except ImportError:
-    # bgl module may be deprecated depending on Blender version
-    pass
-
 from bpy.props import (
         IntProperty
         )
@@ -395,6 +389,7 @@ def draw_callback_3d(self, context):
                 shader.uniform_float("color", (bounds_color[0], bounds_color[1], bounds_color[2], 1.0))
                 batch.draw(shader)
         else:
+            import bgl
             bgl.glLineWidth(1)
             bgl.glBegin(bgl.GL_LINES)
 
diff --git a/src/addon/operators/draw_particles_operators.py b/src/addon/operators/draw_particles_operators.py
@@ -16,12 +16,6 @@
 
 import bpy, blf, math, colorsys
 
-try:
-    import bgl
-except ImportError:
-    # bgl module may be deprecated depending on Blender version
-    pass
-
 from bpy.props import (
         IntProperty
         )
@@ -233,9 +227,15 @@ def draw_callback_3d(self, context):
                 # be deprecated in Blender 3.7. Use gpu module instead.
                 gpu.state.point_size_set(dprops.debug.particle_size)
             else:
+                # only attempt to import bgl when necessary (older versions of Blender). In Blender >= 3.5,
+                # importing bgl generates a warning, and possibly an error in Blender >= 4.0.
+                import bgl
                 bgl.glPointSize(dprops.debug.particle_size)
             particle_batch_draw.draw(particle_shader)
         else:
+            # only attempt to import bgl when necessary (older versions of Blender). In Blender >= 3.5,
+            # importing bgl generates a warning, and possibly an error in Blender >= 4.0.
+            import bgl
             bgl.glPointSize(dprops.debug.particle_size)
             bgl.glBegin(bgl.GL_POINTS)
 
diff --git a/src/addon/operators/helper_operators.py b/src/addon/operators/helper_operators.py
@@ -1380,6 +1380,8 @@ def execute(self, context):
                 subprocess.call(["open", "-a", "Terminal", script_filepath])
             else:
                 if shutil.which("gnome-terminal") is not None and shutil.which("bash") is not None:
+                    # Requited to escape spaces for the script_filepath + "; exec bash" command to run
+                    script_filepath = script_filepath.replace(" ", "\\ ")
                     subprocess.call(["gnome-terminal", "--", "bash", "-c", script_filepath + "; exec bash"])
                 elif shutil.which("xterm") is not None:
                     subprocess.call(["xterm", "-hold", "-e", script_filepath])
@@ -1517,6 +1519,8 @@ def execute(self, context):
                 subprocess.call(["open", "-a", "Terminal", script_filepath])
             else:
                 if shutil.which("gnome-terminal") is not None and shutil.which("bash") is not None:
+                    # Requited to escape spaces for the script_filepath + "; exec bash" command to run
+                    script_filepath = script_filepath.replace(" ", "\\ ")
                     subprocess.call(["gnome-terminal", "--", "bash", "-c", script_filepath + "; exec bash"])
                 elif shutil.which("xterm") is not None:
                     subprocess.call(["xterm", "-hold", "-e", script_filepath])
@@ -1658,6 +1662,8 @@ def execute(self, context):
                 subprocess.call(["open", "-a", "Terminal", script_filepath])
             else:
                 if shutil.which("gnome-terminal") is not None and shutil.which("bash") is not None:
+                    # Requited to escape spaces for the script_filepath + "; exec bash" command to run
+                    script_filepath = script_filepath.replace(" ", "\\ ")
                     subprocess.call(["gnome-terminal", "--", "bash", "-c", script_filepath + "; exec bash"])
                 elif shutil.which("xterm") is not None:
                     subprocess.call(["xterm", "-hold", "-e", script_filepath])
diff --git a/src/addon/properties/domain_advanced_properties.py b/src/addon/properties/domain_advanced_properties.py
@@ -133,8 +133,9 @@ class DomainAdvancedProperties(bpy.types.PropertyGroup):
             description="Attempt to remove extreme particle velocities that"
                 " cause the simulator to exceed the maximum number of allowed"
                 " frame substeps. Enabling this option may prevent simulation"
-                " blow-up in extreme cases. Disable this option if fast moving"
-                " fluid is disappearing from the simulation domain",
+                " blow-up in extreme cases. It is not recommended to disable"
+                " this option outside of experimentation and testing. Disabling"
+                " can result in unstable simulations and/or extreme simulation times",
             default=True,
             ); exec(conv("enable_extreme_velocity_removal"))
     enable_gpu_features = BoolProperty(
diff --git a/src/addon/properties/domain_cache_properties.py b/src/addon/properties/domain_cache_properties.py
@@ -132,6 +132,7 @@ def is_linked_geometry_directory(self):
         if os.path.isdir(linked_export_directory):
             return True
         else:
+            database_filename = "export_data.sqlite3" 
             incorrect_filepath_test = os.path.join(linked_geometry_directory, database_filename)
             if os.path.isfile(incorrect_filepath_test):
                 return True
diff --git a/src/addon/properties/domain_whitewater_properties.py b/src/addon/properties/domain_whitewater_properties.py
@@ -223,7 +223,10 @@ class DomainWhitewaterProperties(bpy.types.PropertyGroup):
             name="Max Particles (in millions)", 
             description="Maximum number of whitewater particles (in millions)"
                 " to simulate. The solver will stop generating new whitewater"
-                " particles to prevent exceeding this limit", 
+                " particles to prevent exceeding this limit. If set to 0, the"
+                " solver will not limit the number of whitewater particles,"
+                " however this may require large amounts of storage space depending"
+                " on the simulation", 
             min=0, max=2000,
             default=12,
             precision=2,
diff --git a/src/addon/properties/fluid_properties.py b/src/addon/properties/fluid_properties.py
@@ -205,27 +205,32 @@ def refresh_property_registry(self):
 
 
     def _initialize_property_registry(self):
-        self.property_registry.clear()
-        add = self.property_registry.add_property
-        add("fluid.initial_velocity", "")
-        add("fluid.append_object_velocity", "")
-        add("fluid.append_object_velocity_influence", "")
-        add("fluid.priority", "")
-        add("fluid.fluid_velocity_mode", "")
-        add("fluid.initial_speed", "")
-        add("fluid.fluid_axis_mode", "")
-        add("fluid.source_id", "")
-        add("fluid.viscosity", "")
-        add("fluid.color", "")
-        add("fluid.target_object", "")
-        add("fluid.export_animated_target", "")
-        add("fluid.export_animated_mesh", "")
-        add("fluid.skip_reexport", "")
-        add("fluid.force_reexport_on_next_bake", "")
-        add("fluid.frame_offset_type", "")
-        add("fluid.frame_offset", "")
-        add("fluid.timeline_offset", "")
-        self._validate_property_registry()
+        try:
+            self.property_registry.clear()
+            add = self.property_registry.add_property
+            add("fluid.initial_velocity", "")
+            add("fluid.append_object_velocity", "")
+            add("fluid.append_object_velocity_influence", "")
+            add("fluid.priority", "")
+            add("fluid.fluid_velocity_mode", "")
+            add("fluid.initial_speed", "")
+            add("fluid.fluid_axis_mode", "")
+            add("fluid.source_id", "")
+            add("fluid.viscosity", "")
+            add("fluid.color", "")
+            add("fluid.target_object", "")
+            add("fluid.export_animated_target", "")
+            add("fluid.export_animated_mesh", "")
+            add("fluid.skip_reexport", "")
+            add("fluid.force_reexport_on_next_bake", "")
+            add("fluid.frame_offset_type", "")
+            add("fluid.frame_offset", "")
+            add("fluid.timeline_offset", "")
+            self._validate_property_registry()
+        except:
+            # Object is immutable if it is a linked library or library_override
+            # In this case, pass on modifying the object
+            pass
 
 
     def _validate_property_registry(self):
diff --git a/src/addon/properties/force_field_properties.py b/src/addon/properties/force_field_properties.py
@@ -281,35 +281,40 @@ def refresh_property_registry(self):
 
 
     def _initialize_property_registry(self):
-        self.property_registry.clear()
-        add = self.property_registry.add_property
-        add("force_field.force_field_type", "")
-        add("force_field.is_enabled", "")
-        add("force_field.strength", "")
-        add("force_field.flow_strength", "")
-        add("force_field.spin_strength", "")
-        add("force_field.enable_endcaps", "")
-        add("force_field.falloff_power", "")
-        add("force_field.falloff_shape", "")
-        add("force_field.enable_min_distance", "")
-        add("force_field.enable_max_distance", "")
-        add("force_field.min_max_distance", "")
-        add("force_field.maximum_force_limit_factor", "")
-        add("force_field.gravity_scale_point", "")
-        add("force_field.gravity_scale_surface", "")
-        add("force_field.enable_frontfacing", "")
-        add("force_field.enable_backfacing", "")
-        add("force_field.enable_edgefacing", "")
-        add("force_field.gravity_scale_volume", "")
-        add("force_field.gravity_scale_curve", "")
-        add("force_field.gravity_scale_width_point", "")
-        add("force_field.gravity_scale_width_surface", "")
-        add("force_field.gravity_scale_width_volume", "")
-        add("force_field.gravity_scale_width_curve", "")
-        add("force_field.export_animated_mesh", "")
-        add("force_field.skip_reexport", "")
-        add("force_field.force_reexport_on_next_bake", "")
-        self._validate_property_registry()
+        try:
+            self.property_registry.clear()
+            add = self.property_registry.add_property
+            add("force_field.force_field_type", "")
+            add("force_field.is_enabled", "")
+            add("force_field.strength", "")
+            add("force_field.flow_strength", "")
+            add("force_field.spin_strength", "")
+            add("force_field.enable_endcaps", "")
+            add("force_field.falloff_power", "")
+            add("force_field.falloff_shape", "")
+            add("force_field.enable_min_distance", "")
+            add("force_field.enable_max_distance", "")
+            add("force_field.min_max_distance", "")
+            add("force_field.maximum_force_limit_factor", "")
+            add("force_field.gravity_scale_point", "")
+            add("force_field.gravity_scale_surface", "")
+            add("force_field.enable_frontfacing", "")
+            add("force_field.enable_backfacing", "")
+            add("force_field.enable_edgefacing", "")
+            add("force_field.gravity_scale_volume", "")
+            add("force_field.gravity_scale_curve", "")
+            add("force_field.gravity_scale_width_point", "")
+            add("force_field.gravity_scale_width_surface", "")
+            add("force_field.gravity_scale_width_volume", "")
+            add("force_field.gravity_scale_width_curve", "")
+            add("force_field.export_animated_mesh", "")
+            add("force_field.skip_reexport", "")
+            add("force_field.force_reexport_on_next_bake", "")
+            self._validate_property_registry()
+        except:
+            # Object is immutable if it is a linked library or library_override
+            # In this case, pass on modifying the object
+            pass
 
 
     def _validate_property_registry(self):
diff --git a/src/addon/properties/inflow_properties.py b/src/addon/properties/inflow_properties.py
@@ -200,27 +200,32 @@ def refresh_property_registry(self):
 
 
     def _initialize_property_registry(self):
-        self.property_registry.clear()
-        add = self.property_registry.add_property
-        add("inflow.is_enabled", "")
-        add("inflow.substep_emissions", "")
-        add("inflow.inflow_velocity_mode", "")
-        add("inflow.inflow_velocity", "")
-        add("inflow.append_object_velocity", "")
-        add("inflow.append_object_velocity_influence", "")
-        add("inflow.priority", "")
-        add("inflow.constrain_fluid_velocity", "")
-        add("inflow.inflow_speed", "")
-        add("inflow.inflow_axis_mode", "")
-        add("inflow.source_id", "")
-        add("inflow.viscosity", "")
-        add("inflow.color", "")
-        add("inflow.target_object", "")
-        add("inflow.export_animated_target", "")
-        add("inflow.export_animated_mesh", "")
-        add("inflow.skip_reexport", "")
-        add("inflow.force_reexport_on_next_bake", "")
-        self._validate_property_registry()
+        try:
+            self.property_registry.clear()
+            add = self.property_registry.add_property
+            add("inflow.is_enabled", "")
+            add("inflow.substep_emissions", "")
+            add("inflow.inflow_velocity_mode", "")
+            add("inflow.inflow_velocity", "")
+            add("inflow.append_object_velocity", "")
+            add("inflow.append_object_velocity_influence", "")
+            add("inflow.priority", "")
+            add("inflow.constrain_fluid_velocity", "")
+            add("inflow.inflow_speed", "")
+            add("inflow.inflow_axis_mode", "")
+            add("inflow.source_id", "")
+            add("inflow.viscosity", "")
+            add("inflow.color", "")
+            add("inflow.target_object", "")
+            add("inflow.export_animated_target", "")
+            add("inflow.export_animated_mesh", "")
+            add("inflow.skip_reexport", "")
+            add("inflow.force_reexport_on_next_bake", "")
+            self._validate_property_registry()
+        except:
+            # Object is immutable if it is a linked library or library_override
+            # In this case, pass on modifying the object
+            pass
 
 
     def _validate_property_registry(self):
diff --git a/src/addon/properties/obstacle_properties.py b/src/addon/properties/obstacle_properties.py
@@ -134,19 +134,24 @@ def refresh_property_registry(self):
 
 
     def _initialize_property_registry(self):
-        self.property_registry.clear()
-        add = self.property_registry.add_property
-        add("obstacle.is_enabled", "")
-        add("obstacle.is_inversed", "")
-        add("obstacle.export_animated_mesh", "")
-        add("obstacle.skip_reexport", "")
-        add("obstacle.force_reexport_on_next_bake", "")
-        add("obstacle.friction", "")
-        add("obstacle.whitewater_influence", "")
-        add("obstacle.dust_emission_strength", "")
-        add("obstacle.sheeting_strength", "")
-        add("obstacle.mesh_expansion", "")
-        self._validate_property_registry()
+        try:
+            self.property_registry.clear()
+            add = self.property_registry.add_property
+            add("obstacle.is_enabled", "")
+            add("obstacle.is_inversed", "")
+            add("obstacle.export_animated_mesh", "")
+            add("obstacle.skip_reexport", "")
+            add("obstacle.force_reexport_on_next_bake", "")
+            add("obstacle.friction", "")
+            add("obstacle.whitewater_influence", "")
+            add("obstacle.dust_emission_strength", "")
+            add("obstacle.sheeting_strength", "")
+            add("obstacle.mesh_expansion", "")
+            self._validate_property_registry()
+        except:
+            # Object is immutable if it is a linked library or library_override
+            # In this case, pass on modifying the object
+            pass
 
 
     def _validate_property_registry(self):
diff --git a/src/addon/properties/outflow_properties.py b/src/addon/properties/outflow_properties.py
diff --git a/src/engine/diffuseparticlesimulation.cpp b/src/engine/diffuseparticlesimulation.cpp
diff --git a/src/engine/trianglemesh.cpp b/src/engine/trianglemesh.cpp
