Fluid: Added new option to control the maximum number fluid particles in the simulation

New option that lets users the define the maximum number of fluid particles that will be allowed in the simulation. This can come in handy, for example, to ensure that the particle count will not exceed the hardware capabilities, or to avoid excessive amounts of particles in a scene.

1 files changed, 9 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_fluid.c b/source/blender/makesrna/intern/rna_fluid.c
index 71b8eee9d50..ab8f97ae3c2 100644
--- a/source/blender/makesrna/intern/rna_fluid.c
+++ b/source/blender/makesrna/intern/rna_fluid.c
@@ -1683,6 +1683,15 @@ static void rna_def_fluid_domain_settings(BlenderRNA *brna)
                            "and reduce the boundary smoothening effect)");
   RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_Fluid_datacache_reset");
 
+  prop = RNA_def_property(srna, "sys_particle_maximum", PROP_INT, PROP_NONE);
+  RNA_def_property_int_sdna(prop, NULL, "sys_particle_maximum");
+  RNA_def_property_range(prop, 0, INT_MAX);
+  RNA_def_property_ui_text(
+      prop,
+      "System Maximum",
+      "Maximum number of fluid particles that are allowed in this simulation");
+  RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_Fluid_datacache_reset");
+
   /*  diffusion options */
 
   prop = RNA_def_property(srna, "use_diffusion", PROP_BOOLEAN, PROP_NONE);