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Depsgraph/RNA: add warning that all data from object instances iterator are COW data. 

It is crucial that scripts do not write, and even more importantly, do
not store any references to those. Otherwise, that’s a rather straight
path to crash.
This commit is contained in:
Bastien Montagne 2018-10-02 14:11:59 +02:00
parent dcf1f891ea
commit 038c7a7f1e
1 changed files with 6 additions and 5 deletions
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11
source/blender/makesrna/intern/rna_depsgraph.c
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@ -414,11 +414,12 @@ static void rna_def_depsgraph_instance(BlenderRNA *brna)
srna = RNA_def_struct(brna, "DepsgraphObjectInstance", NULL);
RNA_def_struct_ui_text(srna, "Dependency Graph Object Instance",
"Extended information about dependency graph object iterator");
"Extended information about dependency graph object iterator "
"(WARNING: all data here is *evaluated* one, not original .blend IDs...)");
prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
RNA_def_property_struct_type(prop, "Object");
RNA_def_property_ui_text(prop, "Object", "Object the iterator points to");
RNA_def_property_ui_text(prop, "Object", "Evaluated object the iterator points to");
RNA_def_property_clear_flag(prop, PROP_ANIMATABLE | PROP_EDITABLE);
RNA_def_property_pointer_funcs(prop, "rna_DepsgraphObjectInstance_object_get", NULL, NULL, NULL);
@ -429,20 +430,20 @@ static void rna_def_depsgraph_instance(BlenderRNA *brna)
prop = RNA_def_property(srna, "instance_object", PROP_POINTER, PROP_NONE);
RNA_def_property_struct_type(prop, "Object");
RNA_def_property_ui_text(prop, "Instance Object", "Object which is being instanced by this iterator");
RNA_def_property_ui_text(prop, "Instance Object", "Evaluated object which is being instanced by this iterator");
RNA_def_property_clear_flag(prop, PROP_ANIMATABLE | PROP_EDITABLE);
RNA_def_property_pointer_funcs(prop, "rna_DepsgraphObjectInstance_instance_object_get", NULL, NULL, NULL);
prop = RNA_def_property(srna, "parent", PROP_POINTER, PROP_NONE);
RNA_def_property_struct_type(prop, "Object");
RNA_def_property_ui_text(prop, "Parent", "Parent of the duplication list");
RNA_def_property_ui_text(prop, "Parent", "Evaluated parent object of the duplication list");
RNA_def_property_clear_flag(prop, PROP_ANIMATABLE | PROP_EDITABLE);
RNA_def_property_pointer_funcs(prop, "rna_DepsgraphObjectInstance_parent_get", NULL, NULL, NULL);
prop = RNA_def_property(srna, "particle_system", PROP_POINTER, PROP_NONE);
RNA_def_property_struct_type(prop, "ParticleSystem");
RNA_def_property_clear_flag(prop, PROP_ANIMATABLE | PROP_EDITABLE);
RNA_def_property_ui_text(prop, "Particle System", "Particle system that this object was instanced from");
RNA_def_property_ui_text(prop, "Particle System", "Evaluated particle system that this object was instanced from");
RNA_def_property_pointer_funcs(prop, "rna_DepsgraphObjectInstance_particle_system_get", NULL, NULL, NULL);
prop = RNA_def_property(srna, "persistent_id", PROP_INT, PROP_NONE);