[Bf-blender-cvs] [763b1f18054] temp-sybren-usd-patch-01: USD: clarified TODO in AbstractHierarchyWriter

[Sybren A. Stüvel]

Commit: 763b1f1805406aab15523d06aad8635e6e235c38
Author: Sybren A. Stüvel
Date:   Tue Nov 26 12:21:58 2019 +0100
Branches: temp-sybren-usd-patch-01
https://developer.blender.org/rB763b1f1805406aab15523d06aad8635e6e235c38

USD: clarified TODO in AbstractHierarchyWriter

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M	source/blender/usd/intern/abstract_hierarchy_iterator.h

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diff --git a/source/blender/usd/intern/abstract_hierarchy_iterator.h b/source/blender/usd/intern/abstract_hierarchy_iterator.h
index 1983c773336..96c236bcf52 100644
--- a/source/blender/usd/intern/abstract_hierarchy_iterator.h
+++ b/source/blender/usd/intern/abstract_hierarchy_iterator.h
@@ -110,8 +110,9 @@ class AbstractHierarchyWriter {
  public:
   virtual ~AbstractHierarchyWriter();
   virtual void write(HierarchyContext &context) = 0;
-  // TODO(Sybren): add function like unused_during_iteration() that's called when a writer was
-  // previously created, but wasn't used this iteration.
+  // TODO(Sybren): add function like absent() that's called when a writer was previously created,
+  // but wasn't used while exporting the current frame (for example, a particle-instanced mesh of
+  // which the particle is no longer alive).
 };
 
 /* AbstractHierarchyIterator iterates over objects in a dependency graph, and constructs export