Commit: 059b878240a93a022eadce74b387ee737f8f1ab5
Author: Sergey Sharybin
Date: Thu Nov 30 11:57:21 2017 +0100
Branches: master
https://developer.blender.org/rB059b878240a93a022eadce74b387ee737f8f1ab5
Depsgraph: More full explanation for previous commit
===================================================================
M source/blender/depsgraph/DEG_depsgraph.h
M source/blender/depsgraph/intern/depsgraph_tag.cc
===================================================================
diff --git a/source/blender/depsgraph/DEG_depsgraph.h
b/source/blender/depsgraph/DEG_depsgraph.h
index 59b10b95d49..9349b189e7b 100644
--- a/source/blender/depsgraph/DEG_depsgraph.h
+++ b/source/blender/depsgraph/DEG_depsgraph.h
@@ -120,10 +120,9 @@ void DEG_id_tag_update_ex(struct Main *bmain,
struct ID *id,
short flag);
-/* Tag given ID type for update.
- *
- * Used by all sort of render engines to quickly check if
- * IDs of a given type need to be checked for update.
+/* Mark a particular datablock type as having changing. This does
+ * not cause any updates but is used by external render engines to detect if
for
+ * example a datablock was removed.
*/
void DEG_id_type_tag(struct Main *bmain, short idtype);
diff --git a/source/blender/depsgraph/intern/depsgraph_tag.cc
b/source/blender/depsgraph/intern/depsgraph_tag.cc
index 798af90f9ed..3d63e570eb8 100644
--- a/source/blender/depsgraph/intern/depsgraph_tag.cc
+++ b/source/blender/depsgraph/intern/depsgraph_tag.cc
@@ -251,7 +251,7 @@ void DEG_id_tag_update_ex(Main *bmain, ID *id, short flag)
#endif
}
-/* Tag given ID type as updated. */
+/* Mark a particular datablock type as having changing. */
void DEG_id_type_tag(Main *bmain, short idtype)
{
if (idtype == ID_NT) {
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